I've been using rc1 on both 2m/70cm and on the SDR on 20m with good results but maybe 1. 2017, Gurten HB9DCO/1 Description 40/30/20m Trapped EFHW (according to HB9BCB design) Mast 6 m (Inverted V), east-west, RG-174 (10 m), rig KX3, no ATU (except on 60m KX3 ATU), QRO coupler according to HB9BCB design (64:1) Results per band (difference to average of all antennas) Photos 40m 20m 30m 60m. Main radiation direction is about 220 degrees which is same direction where wire is aimed. Customer supplies antenna. It can receive up to 28dB below noise. 44kg (my multi-band EFHW antenna weighs 1. To make it a multi band (10/20/40/80m) antenna when little space is available: Coil to extend to 40m. A curated and running list of web links I’ve found through research and repeated use. More remarkable and not less important: the noise level was noticeably lower, probably due to the fact that the 5/8 is a monoband antenna and. ) A diplexer circuit will merge the outputs of the 2M and 20M RF paths and match the impedance to the antenna. 2kHz USB dial Julian. Looking at the radiation angles with the antenna tools the radiation pattern starts to resemble a vertical. Other services available on this system: WSPR reception. WSPR - QRP-Labs U3S signal quality Measurement of the signal quality of QRP-Labs U3s with low-pass filters. As you can see, all the spots are in North America. A real killer on 40M and certainly holds its own on 80M. It always seems that there is always a cable coming loose, causing the whole mess not to work. Later in the evening I performed some WSPR tests using 20W output on both 80 and 20m. It is called the WSPR-AXE and sold for around $60 including the plastic project case. 44kg (my multi-band EFHW antenna weighs 1. I set the 857 to 10W output on the 20M WSPR frequency (14. The fibreglass spreaders are pretty much just that, fibreglass so over time, believe it would weather and start to shred fibres therefore K4KIO recommended to paint the spreaders which will result in longevity. Works on any band from 2200m to 2m with an option to operate on up to 6 bands. (1) Establish a standard - for 30m - a 30m dipole sloper, 40m - a 40 meter dipole inverted V, 20m - hexbeam at a certain fixed azimuth (2) Compare that standard to my SOTA antennas - the EFHW Trail Friendly 40-20-10, the EF MTR - in their normal deployed position - typically inverted L or inverted V. Bandspringer Midi , end fed antenna. WSPR Provides Insight into Band Conditions Leave a comment Posted by rjbono on July 27, 2016 I have been running WSPR using my main HF antenna and the IC-7100 the last few days on mainly 40m and 20m. With just my earth-electrode antenna (20m separated earth rods, NOTHING in the air) I have got reports on WSPR-2 from Germany with a few mW ERP. I am still fascinated by the fact that you can communicate - e. Antenna is tuned for 10M, then 20M and then 40M using a SWR meter by folding back excess wire till SWR is equal to 1. WSPR spots using 5W on 20m with my Inverted-L I managed to get wsprx working in receive mode on my new installation of Linux Mint 16. Or in more practical terms. Transmitter output is fed into a homemade 40dB power pad. 75 mm 2 insulated wire ("zip wire", AWG 20 or 21, not critical); as suggested by Harry, I split 13 meters of 2x0. They use the same software (WsprryPi) on the Pi to generate a WSPR signal. Portable DS1 Vertical Antenna 40m-10m Portable UnUnTenna 40m-10m Portable UnUnTenna Plus 40m-10m Portable Tri-Band Vertical Antenna 40/30/20m Portable No …. I then connected the Loop antenna to the 50Ω assembly. Bob's word mark applies to a "series of computer software for transmitting and receiving digital radio. See my Compiling WSPR and Compiling WSPR-X pages for more information. Overnight WSPR reception on 160m Posted on August 4, 2016 by GM1004SWL I set my Elad FDM-S2 and 60ft Sloper antenna to monitor WSPR on 160m over night, conditions were a bit noisy with lightening crashing. By g4hsk | Published July 23, 2013 | Full size is 950 × 568 pixels W4AS 20M JT9-1 5W MAG LOOP. Worked many stateside stations. Wake Island (KH9) in Pacific (WA2YUN) with 5 /50/100 Watts (Average distance = 11977 km), and all Europe including the "dark" 20m zone to OE3KFB (Austria). “Just do it,” he advises. 5 watts and the ATX-1080 antenna on the back of the set mounted. The fibreglass spreaders are pretty much just that, fibreglass so over time, believe it would weather and start to shred fibres therefore K4KIO recommended to paint the spreaders which will result in longevity. The WSPR mode of K1JT is used to send and receive weak signals. Usually a 5 meter (16. 44kg (my multi-band EFHW antenna weighs 1. of coax down to an Rf choke on the ground, and then 50ft. There was a one off to Spain but the consensus from WSRP. This seems low compared to N5Cey’s 20m 1/4 wave vertical which typically receives 180 to 200 unique spots from his QTH near Los Fresnos. Check the WSJT-X page and links therein for details about modes FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR. This is running with only 1 watt of power into a G5RV Jr. Seeing 3W and SWR of 1. They use the same software (WsprryPi) on the Pi to generate a WSPR signal. Here is 24 hours of WSPR data collected from the 20m Vertical Dipole: There were 114 unique receive spots and 90 unique heard from spots with 1W transmit. DX signals were in most cases just a bit stronger on the 5/8. Today I have made a cw qso on 20M with HA8LTQ. A real killer on 40M and certainly holds its own on 80M. Total weight: 2. A very nice beacon transmitter for QRSS and WSPR. N4PY offers rig control software for a wide variety of receivers from the Elecraft K3 to the Ten Tec RX 320 receiver. Great fun!. Results also where pretty good, specially on 20m. Yaesu FT817. I've had a couple of 5W PSK-31 contacts which went really well with DM780. 1 is preferred. The wspr-pi is not on the picture. Local differences in other factors such as terrain, antenna height and antenna orientation can cause signal/noise variations between receiving stations. Recently, the team over at TAPR. 10 and 6 meters is not a good pair of bands to pick in my opinion. Note: You will always need your highest frequency LPF fitted in slot 1! Physical setup: LPF 1 10m *** This LPF must be fitted, this must be the highest frequency*** LPF 2 15m LPF 3 20m LPF 4 30m LPF 5 40m LPF 0 80m - Located on main PCB. Switching across bands is manually done using a "crocodile clip" at the join of 10M to 20M length for 20M band and then 20M to 40M length for 40M band with 10M to 20M already connected. REMINDER::::::   M0POG ( MC0POG ) “Portable Operating Group. And - perfect for WSPR - it is omni-directional. It always seems that there is always a cable coming loose, causing the whole mess not to work. On 30m the antenna also has a good low angle radiation pattern. WSPR is a QRP semi automatic "beacon" mode developed by Joe Taylor, K1JT and is an excellent way to determine propagation conditions, or to test the effectiveness of an antenna system I would recommend starting off with an up-to-date version of Raspbian Jessie which can be downloaded from RaspberryPi. WSPR Frequencies are listed in the footer of each page on this web site. 20m WSPR report de MW0MJB. FT8 really interests me along with experimenting with antennas and WSPR on 20m. Xiegu g1m cat control. Can't remember the writer of the article but it was in dutch and this station made QSOs in the middle of the summer with the USA just at 16 UTC in the afternoon on a regular basis. WSPR is a fantastic tool; it is most useful in understanding the behaviour of propagation. 0956 MHz Install U3, C1, C4, D1 (Power Supply) Note: this is not needed if your power source is externally regulated or never exceeds 3. net was on 40m my DX was going to be North America. Another benefit mentioned earlier relates to signal propagation. The frequency of 14. After the coil approximately 2 meter of wire is needed to make the antenna resonant on 40m. There is a Mac OS X build too. He documented a series of WSPR spots of his transmitter on 20m in a table swapping between antennas during the test period, one side of the table for each antenna. My first tests were to check SWR on different bands. Tuning to 20m using 0. Here's the screen capture from 1330 UTC, March 7th. Very happy ! 73 de IU2ITE. Antenna is tuned for 10M, then 20M and then 40M using a SWR meter by folding back excess wire till SWR is equal to 1. The spectrum is measured using an SIGLENT SSA3021X analyzer. Weak Signal Propagation (WSPR / WSPRryPi) DSTAR Access Point (DVAP dongle and other add-on boards) Packet Radio - h/w (Pi TNC) and s/w (Direwolf) TNC solutions; Packet Radio BBS / Personal mailbox (PiLinBPQ) Packet DX Cluster (DX Spider) DIY Projects: Remote antenna rotator, antenna switches. com and ordered the mid-range model that covers 17, 20, 30 and 40 meters. Height above ground is a factor. I did some calculations using 300 mW and typical gains for your transmit antenna (6 dBi) and the magnetic loop antennas (0 dBi). com,1999:blog-5289091959034989657. WSPR Callsign: OK7DMT Frequency: 14. On 40m the antenna electrically acts as half a wave but physically is dramatically shortened. No antenna tuner. Edmonson, II currently serves as the U. 10m telescopic flag pole antenna support dx commander The original DX Commander Classic Telescopic Pole. Set up properly, the RPi generates 100mW on 20 meters. Map Circle size corresponds to SNR, and color to antenna. For example a simple WSPR beacon can be built using the Si 570, or Si 5351. Pacific Antenna is the operator of QRPkits, a company that specializes in high quality, low cost QRP Kits. And - perfect for WSPR - it is omni-directional. © 2010-2019 Jari Perkiömäki (OH6BG), James Watson (HZ1JW) and Juho Juopperi (OH8GLV). using PSK31 mode - thousands of km all over Europe with more or less only double the power of a cellphone using a self built antenna made from basically 10 metres of. REMINDER::::::   M0POG ( MC0POG ) “Portable Operating Group. Today the SFI is 70, much better then 2 days ago. SHORTWAVE WIRE ANTENNAS G5RV to ZS6BKW modification useable for 40, 20, 17, 12, 10 and 6m my goal for this work: In 2007 I installed an G5RV antenna to make my first steps on shortwave. I would estimate that the loop was louder on about 50% of signals, even on 20m. Board fits in Hammond 1455J1202 (120 x 78 x 27 mm) enclosure. Safe to say, I think: the antenna WORKS!. On 15m the antenna is resonant at 21. HDSDR is running under Wine on the Mac as it is a Windows program, WSPR is native to OSX. I made a note to myself to figure this out later. com/profile/04950099046043465763 [email protected] It always seems that there is always a cable coming loose, causing the whole mess not to work. The program was initially written by Joe, K1JT. This setup is not the best tool for this calibration task, but I think I came pretty close in my effort. Rating: 5 of 5. Currently on with the feeder to my 10m halo and getting all over the place (best DX is OH on 472kHz). 200 kHz and, if possible, upload your 630m MF spots to the WSPRnet. Really, the entire goal is to never to have to remember anything while hopefully highlighting things for others. 10m telescopic flag pole antenna support dx commander The original DX Commander Classic Telescopic Pole. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions. VK1AD WSPRLite 20m 100 mW signal – 24 hours to 0945 UTC 26 April 2017. FT8 really interests me along with experimenting with antennas and WSPR on 20m. It will transmit every 10 minutes its WSPR 25mW beacon in 20m, dial in 14095. Model Mid for bands 40m, 30m, 20m and 17m (7MHz, 10MHz, 14MHz and 18MHz) Model High for bands 15m, 12m, 10m and 6m (21MHz, 24MHz, 28MHz and 50MHz) The WSPR Transmitter works on four or more Ham band from 136kHz to 70MHz and is powered from 5V. Tuning to 20m using 0. Switching across bands is manually done using a "crocodile clip" at the join of 10M to 20M length for 20M band and then 20M to 40M length for 40M band with 10M to 20M already connected. Map Circle size corresponds to SNR, and color to antenna. This is similar to the previous post about the Geminids Meteor Shower. of the MF antenna and MF. 20m WSPR report de MW0MJB. Broadband HF Vertical Antenna - Requires no tuner The following notes show the design and construction of a Broadband HF Vertical antenna wh. As you can see, all the spots are in North America. Nothing fancy. I've had my general license for a year now and currently have no interest in voice modes on local repeaters or HF. WSPR Build 3617 installed with no issues on Windows 10 and I was up and running in a few minutes with my FT-897D. WSPR with a vertically polarised rectangular quad loop. FT8 JS8 WSPR 40m/20m QRP crystals. My rig consists of ICOM 7300 and a 1500 W automatic antenna tuner (MJF). Ultimate3 v3. WSPR spots using 5W on 20m with my Inverted-L I managed to get wsprx working in receive mode on my new installation of Linux Mint 16. Overview 20m WSPR Results20m WSPR Results. All you need to do is connect an antenna to the 2 header pins on the left-hand side, just above the button, and a 5V supply to 2 header pins that are barely visibly at the bottom of the board underneath the synthesizer board. The antenna is a 20m dipole made from 5. The implementation presented here can support 5 bands of which I concentrate on 2 bands - 20m and 40m. I like to make graphics, so with WSPR 24/7 active it's easy to do. I set the TX power to 5 W and started to WSPR on 20m. The second is configured to 8 slots and is only for wspr. Tuning to 20m using 0. WSPR software (WSPR, WSJT-X) logs data Received data is sent via internet Propagation is mapped Useful for real-time band monitoring Useful for tracking anything from boats to Long Range Pico Balloons. 1 is preferred. While cleaning my garage, I found a pair of 20m whip antennas and an MFJ 347 mini dipole mount. Here is 24 hours of WSPR data collected from the 20m Vertical Dipole: There were 114 unique receive spots and 90 unique heard from spots with 1W transmit. Wake Island (KH9) in Pacific (WA2YUN) with 5 /50/100 Watts (Average distance = 11977 km), and all Europe including the "dark" 20m zone to OE3KFB (Austria). WSPR Build 3617 installed with no issues on Windows 10 and I was up and running in a few minutes with my FT-897D. The project turned out a great portable antenna for 20m and the performance will definitely surprise you. The program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands. 15mm wire dangling below the payload. Even at 20m (65 feet) you will have a signal input into the RSP over 0 dBm (which is the safe working level for an RSP). The two shown below bracket the WSPR frequency. I confirmed the radiation patterns using a field strength meter in both polarizations and with WSPR data. It’s presently only 7-8 meters (24’ ) above ground level at N6GN. Brian Austin, ZS6BKW. You can use this tool to better understand propagation and relative antenna performance. WSPR unit now fully operational, let us get on the air. Mauro IK1WVQ asked me to post a schematic of the WSPR PA so here it is: The network values on the schematic are for 15M or 20M versions of the PA. 2) Another L400b at 20m, 400ft Quad RG6, common mode chokes/isolators and wsjtx (KL7/L) – slightly noisier at all heights (4-20m) but did have one more VK4YB. Usually a WSPR station contains a computer and a transceiver, but it is also possible to build very simple beacon transmitters with little effort. June 2017 My Conclusion After almost 2 weeks transmitting my WSPR signal with my small ATAS 100 Antenna and about 20 Watt on 20m, I was pleased to see my signal received in Europe, North America and South America. 1; 12m band SWR 2. 4 W (QRP) Antenna for 20M is an "Endfedz". For the purposes of WSPR, I configured my output power as 20mw, which I thought was probably still generous, but in the right ballpark. Today I have made a cw qso on 20M with HA8LTQ. It requires the TAPR shield which is both a LP filter and an RF amplifier that plugs into the GPIO pins on the RPi. 20m band SWR 2. I mounted these on a small piece of conduit, and then built a quick stand to hold it up, consisting of a 5 gallon bucket, a small round of particle board that I had left over from another. In the meantime the antenna has been used on WSPR on 30m with 1 watt and my signal has been received by N0RW in EL87PR a distance of 4364 miles and best DX on receive was YV4GJN in FK50XF at 7522 Km. This is a 200mw WSPR transmitter on 630-20m. DXplorer of SotaBeams shows only the average in their graphics. Ultimate 3S with 5-band relay module in front, variable LM2596 power supply (with voltmeter) forthe power amplifier behind left,a variable LM2596 supply set for 5 Volts for the Ultimate 3Sin the middle, and the antenna switch to the right in the back. 0956 MHZ (wspr). Overview 20m WSPR Results20m WSPR Results. You could be on the air with all sorts of fun QRSS and WSPr modes for just $33 + shipping!. This antenna so far has met my expectations and is weight comparable to other SOTA antennas I have. Ultimate 3S with 5-band relay module in front, variable LM2596 power supply (with voltmeter) forthe power amplifier behind left,a variable LM2596 supply set for 5 Volts for the Ultimate 3Sin the middle, and the antenna switch to the right in the back. The project is to install an antenna array for 40m, 20m, and 10m bands on the R. See my Compiling WSPR and Compiling WSPR-X pages for more information. There was a one off to Spain but the consensus from WSRP. Rob, there are running 2 kiwis fed by the same antenna via a splitter. I may just set up another stealth dipole cut for 17m, my favourite band. They’re not used for the antenna!!! They’re just there to help weigh down the wire to prevent it from wobbling due to the AC. Here’s a map showing where my WSPR has been heard. DDS and WSPR. Also using a HF-AUTO Antenna Tuner for the beam's and a BT1500A Balanced Antenna Tuner for my 450ohm ladder feed horizontal loop (80-10m) For antennas I’m using a horizontal loop for 80-10m at about 17m height - using ladder line to the tuner. Transmitting 4563 on 20m, 1513 on 17m, 360 on 15m and. 138 MHz crystal was bought at the German "FUNK" magazine. Figure-7 WSJT-X FT-8 Band Activity Window. The RTL-SDR operated in a software direct sampling mode to make it work on the 20m band. During the week we both made the WSPR challenge scoreboard. FT817 SANPCPA sequencer SOTA Squidpole TinyTrak Tuner uhf UV-5R UV5R. com,1999:blog-5289091959034989657. Its located just 10m to the West of 1) – It’s bonded to ground via multiple rods and into the lake bottom. “Just do it,” he advises. Tuning is fairly easy on the lower bands, but is quite challenging on 10m-15m due to the significant effects of hand capacitance at those frequencies. It is a 20m version and I only built it to test the effectiveness before deciding to build one for 40m - for which I don't have a directional antenna yet. At this stage it’s possible to test the antenna’s perfomance. I've had my general license for a year now and currently have no interest in voice modes on local repeaters or HF. I use a little utility called Mini-deluxe to do the interfacing between SDR and HRD. (1) Establish a standard - for 30m - a 30m dipole sloper, 40m - a 40 meter dipole inverted V, 20m - hexbeam at a certain fixed azimuth (2) Compare that standard to my SOTA antennas - the EFHW Trail Friendly 40-20-10, the EF MTR - in their normal deployed position - typically inverted L or inverted V. The antenna Solid Delta loop for 20m band Delta loop Antenna Boom length: about 7m, projection on the ground 4m per arm Mounts on mast from 40 to 50mm, 60mm optional. Using this xtal and some fine-tuning activity you end up in the. I put it on my things to do list and there it sat until a box arrived this week. 20M QRPi (WSPR-Pi) Schematic. 097200 MHz (20m band) Packet: standard WSPR message starting at the 4th, 14th, 24th, 34th, 44th and 54th minute 6-character locator WSPR message starting at the 6th, 16th, 26th, 36th, 46th and 56th minute Example: "OK7DMT JN99 10" and " JN99bl 30". Its shape also means a feedpoint impedance nearer 50 ohm. The program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands. Here are some links to photos of various projects: Baluns 070318_Balun Balun 070701 Balun 07. Using a simple dipole antenna a Raspberry Pi running a WSPR transmitter can be heard across the Atlantic when the atmospheric conditions are right. More remarkable and not less important: the noise level was noticeably lower, probably due to the fact that the 5/8 is a monoband antenna and. WSPR 20m band activity data recorded from 29/10/2017 to 31/10/2017. It will transmit every 10 minutes its WSPR 25mW beacon in 20m, dial in 14095. Portable DS1 Vertical Antenna 40m-10m Portable UnUnTenna 40m-10m Portable UnUnTenna Plus 40m-10m Portable Tri-Band Vertical Antenna 40/30/20m Portable No …. Customer supplies antenna. Antenna is tuned for 10M, then 20M and then 40M using a SWR meter by folding back excess wire till SWR is equal to 1. A G5RV antenna (80m long) for 160-6m at about 20m height. The second is configured to 8 slots and is only for wspr. The first running version under test. On 40m the antenna electrically acts as half a wave but physically is dramatically shortened. 097200 MHz (20m band) Packet: standard WSPR message starting at the 4th, 14th, 24th, 34th, 44th and 54th minute 6-character locator WSPR message starting at the 6th, 16th, 26th, 36th, 46th and 56th minute Example: "OK7DMT JN99 10" and " JN99bl 30". 3V active antennas. Here are some links to photos of various projects: Baluns 070318_Balun Balun 070701 Balun 07. By 1709 UTC the map looked like this:. Horizontal mounting now has the magnetic field lines that are affected by the ground. * Antenna to be raised another 3m to maximum 10m Stage 1: Painting the spreaders. WSPR software (WSPR, WSJT-X) logs data Received data is sent via internet Propagation is mapped Useful for real-time band monitoring Useful for tracking anything from boats to Long Range Pico Balloons. 6 kHz USB, now active as test from Castelar, Buenos Aires. Not bad for 1w Once 20m died down here (and I stopped playing with FT8 for the night) I switched the radio over to 40m and let it run over night, still using the same 1w power and antenna. Weak Signal Propagation (WSPR / WSPRryPi) DSTAR Access Point (DVAP dongle and other add-on boards) Packet Radio - h/w (Pi TNC) and s/w (Direwolf) TNC solutions; Packet Radio BBS / Personal mailbox (PiLinBPQ) Packet DX Cluster (DX Spider) DIY Projects: Remote antenna rotator, antenna switches. WSPR Build 3617 installed with no issues on Windows 10 and I was up and running in a few minutes with my FT-897D. 2017, Gurten HB9DCO/1 Description 40/30/20m Trapped EFHW (according to HB9BCB design) Mast 6 m (Inverted V), east-west, RG-174 (10 m), rig KX3, no ATU (except on 60m KX3 ATU), QRO coupler according to HB9BCB design (64:1) Results per band (difference to average of all antennas) Photos 40m 20m 30m 60m. WSPR Map – 26 April 2017. Worked many stateside stations. Anyone know how these two versions are different? Glenn n6gn-- You received this message because you are subscribed to the Google Groups "2 Meter WSPR" group. There was a one off to Spain but the consensus from WSRP. It requires the TAPR shield which is both a LP filter and an RF amplifier that plugs into the GPIO pins on the RPi. The completed kit is a WSPR net beacon transmitter that can be built for 10, 20 or 30m. I then changed to my TS-590SG and WSJT-X with the 4BTV so that I could both transmit and receive. The antenna Solid Delta loop for 20m band Delta loop Antenna Boom length: about 7m, projection on the ground 4m per arm Mounts on mast from 40 to 50mm, 60mm optional. Discussion in 'Antennas, Feedlines, Towers & Rotors' started by G8GYW, May 28, 2020. It's too early to give meaningful numerical comparisons, but on its first evening of operation on 20m, it's achieving very much the same signal strength at DU1MGA as other UK stations, so it's obviously not a bad antenna in any sense. A WSPR (pronounced 'whisper') beacon is a low power radio transmitter operating on amateur bands from 2m to 160m or approximately 144MHz to 1. You can use suitable connectors for the outputs in this case or you can easily solder a thin coaxial cable directly to the pins. I am very satisfied with the Antenna. In the meantime the antenna has been used on WSPR on 30m with 1 watt and my signal has been received by N0RW in EL87PR a distance of 4364 miles and best DX on receive was YV4GJN in FK50XF at 7522 Km. LF 137400 - 137600 137600 - 137625 (WSPR-15) MF 475600 - 475800 475800 - 475825 (WSPR-15) 160m 1838000 - 1838200 1838200 - 1838225 (WSPR-15) 80m 3594000 - 3594200 60m 5288600 - 5288800 40m 7040000 - 7040200 30m 10140100 - 10140300 20m 14097000 - 14097200 17m 18106000 - 18106200 15m 21096000 - 21096200 12m 24926000 - 24926200 10m 28126000 - 28126200 6m 50294400 - 50294600 4m 70092400 - 70092600. Safe to say, I think: the antenna WORKS!. To make the best out of the dual band transmitter design Ignacio had made a clever contraption to get the antenna to be dual band so it could be equally effective on both the 30m and 20m bands. FT817 SANPCPA sequencer SOTA Squidpole TinyTrak Tuner uhf UV-5R UV5R. 91kg including the squid pole). Perfect for your direct conversion HF radio projects. WSPR has been around since 2008, and is a computer program used for weak-signal radio communication between hams. After receiving the parcel with the Lizte and open line (called kippenladder - chickenladder in Dutch), a rainy afternoon was the moment to put thing together to something called a. Rating: 5 of 5. Xiegu g1m cat control. Post navigation ← John reviews the MLA-30 mag loop antenna Jim’s PL-880 loses audio on FM band →. 5 watt my signal was received by KE7A in EM12KX at a distance of 4670 miles and best DX on receive was ZL3DMH in RE66IM at. Antenna system is the OCFD hung sort of horizontal 30ft. And this only with 200mW in WSPR Mode. The second is configured to 8 slots and is only for wspr. This bank holiday weekend I decided to get WSPR up and running and see what the propagation was like on 20M. org have released a 20M WSPR TX filter shield. The antenna is a 20m RadioWavz dipole ($36 at HRO) hung vertically from a branch at 72’ (22m). WSPR result show that antenna is working also on transmitting. 91kg including the squid pole). WSPR unit now fully operational, let us get on the air. After the coil approximately 2 meter of wire is needed to make the antenna resonant on 40m. They use the same software (WsprryPi) on the Pi to generate a WSPR signal. There is a lot of WSPR-2 activity on 474. Here are some links to photos of various projects: Baluns 070318_Balun Balun 070701 Balun 07. Tax) Add to Cart. This antenna is installed in my attic and at the time in a test with the Wsprlite Classic with 200mw output. The realtime waterfall makes it much easier to ensure that your radio is accurately set to receive in the wspr sub-band. “It is fun and you can use a simple long-wire antenna hung by the balcony. See full list on g4ilo. QRP portable qrp skcc contest portable qrp antenna cw DX SOTA hoa restricted antenna morse code stealth antenna elecraft kx3 ham radio kx3 magnetic loop qrp antenna JT-65 WSPR calling cq digital modes mag loop qrpp reverse beacon network ssb #proudofmyson 10 meter 2 meter portable j-pole CWOpps EI13CLAN JT-9 Wake Island camping copper j-pole. Home WSJT-X WSJT MAP65 WSPR SimJT Program Development References Support: Description WSJT-X implements communication protocols or "modes" called FT4, FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. WSPR Frequencies are listed in the footer of each page on this web site. WSPR - QRP-Labs U3S signal quality Measurement of the signal quality of QRP-Labs U3s with low-pass filters. WSPR relies on stations starting to transmit between seconds 1 and 4 of even minutes. More info here. The fibreglass spreaders are pretty much just that, fibreglass so over time, believe it would weather and start to shred fibres therefore K4KIO recommended to paint the spreaders which will result in longevity. On the other hand it works brilliantly well. And - perfect for WSPR - it is omni-directional. Horizontal mounting now has the magnetic field lines that are affected by the ground. Ultimate 3S with 5-band relay module in front, variable LM2596 power supply (with voltmeter) forthe power amplifier behind left,a variable LM2596 supply set for 5 Volts for the Ultimate 3Sin the middle, and the antenna switch to the right in the back. 8MHz respectively. Using a simple dipole antenna a Raspberry Pi running a WSPR transmitter can be heard across the Atlantic when the atmospheric conditions are right. This antenna is installed in my attic and at the time in a test with the Wsprlite Classic with 200mw output. WSJT-X incorporates nearly all popular capabilities of programs WSJT and WSPR, while adding comprehensive rig control and many other features. VK on half a watt - no problems. I still needed an antenna. WSPR on 20M Encouraged by a post on a forum that I visit, I decided to have a go with WSPR (Weak Signal Propagation Reporter) whilst I was working in the shack yesterday. 00am local until 17. Quick view Compare. Five members of HB9SOTA have gathered on the summit of Gurten HB/BE-111 on July 2, 2017 to compare the following seven antennas using WSPR on 40/30/20/60m: Linked EFHW inverted V G5RV Trapped EFHW inverted V EARC End-Fed (9:1 UNUN) G8JNJ (modified for SOTA) Vertical with one radial Fuchs antenna To get straight to the point: six of the seven tested antennas were very similar in performance. 0386 MHZ (wspr). Time synchronization is maintained via your router and NTP. “It is fun and you can use a simple long-wire antenna hung by the balcony. Post navigation ← John reviews the MLA-30 mag loop antenna Jim’s PL-880 loses audio on FM band →. 9; Real life performance. Dodd espoused the merit of WSPR for antenna comparison in his article (Dodd 2011). 15mm wire dangling below the payload. I am using SDRSharp (SDR#) to operate the FCDP+ and the resulting audio output is then used as the input into the WSPR program. 20m WSPR report de MW0MJB. I also tested the WonderLoop but results were too poor to be shown. 3MHz which is the 3rd harmonic of 7. Make Offer - FM Broadcast Dipole Antenna with 20 meter cable for FMT-600H 600W FM transmitter 1000W / 1KW FM Broadcast Antenna 87. For example a simple WSPR beacon can be built using the Si 570, or Si 5351. WSPR relies on stations starting to transmit between seconds 1 and 4 of even minutes. The realtime waterfall makes it much easier to ensure that your radio is accurately set to receive in the wspr sub-band. WSPR now received stations deeper than -30dB. 5m roof ladder (with ~1m added length from the roof hitch), which I recently bought for about £100. More remarkable and not less important: the noise level was noticeably lower, probably due to the fact that the 5/8 is a monoband antenna and. I did some calculations using 300 mW and typical gains for your transmit antenna (6 dBi) and the magnetic loop antennas (0 dBi). I also tested the WonderLoop but results were too poor to be shown. 20m WSPR report de MW0MJB. Weak Signal Propagation (WSPR / WSPRryPi) DSTAR Access Point (DVAP dongle and other add-on boards) Packet Radio - h/w (Pi TNC) and s/w (Direwolf) TNC solutions; Packet Radio BBS / Personal mailbox (PiLinBPQ) Packet DX Cluster (DX Spider) DIY Projects: Remote antenna rotator, antenna switches. One of the things that fascinate me in ham radio is the ability to build actually working stuff from very basic materials. If desired, a separate 5V power supply (for those who do not wish to use the USB port) can be used (not included). Onboard GPS module and antenna calculates position and altitude. Application of this theory to very small dipoles, even ones less than 1 meter tip-tip has provided very good results for amateur HF WSPR use. You could be on the air with all sorts of fun QRSS and WSPr modes for just $33 + shipping!. 1 is preferred. Loop antennas are of two types. I used it quite successfully for 80m QRP DX using WSPR, but for local contacts it didn't do any better than my ZS6BKW which just seems a fantastic antenna (except on 15m). (Don’t be misled, the dipole is not half wave dipole but some non-descript multi band loaded dipole. See full list on g4ilo. My 1 watt signal was picked up throughout Canada and the U. After the coil approximately 2 meter of wire is needed to make the antenna resonant on 40m. 5 watt my signal was received by KE7A in EM12KX at a distance of 4670 miles and best DX on receive was ZL3DMH in RE66IM at. I set the 857 to 10W output on the 20M WSPR frequency (14. Transmitter output is fed into a homemade 40dB power pad. 05 transmitter u-blox Neo-7M GPS with internal antenna Superantenna MP-1 (modified with longer whip) on balcony. wspr VK4PK QG62qi 20 20m The full explanation of the WSPR application: Frequencies can be specified either as an absolute TX carrier frequency, or using one of the following strings. 2:1 on the meter of a RadioShack SWR/Power meter connected between the QCX and the antenna. 75 inch copper cylinders and a 10-turn tuning coil. The second is configured to 8 slots and is only for wspr. The loop is a rectangle which is easier to support on short masts. Using FT8 and WSPR, you will find that monitoring the above frequencies is a great way to check how your shortwave listening antennas and feed lines are performing. I believe WSPR can be also be used obtain other meaningful data for example: making antenna comparisons, dispelling many of the wild claims made by the antenna designers and manufacturers. Overnight WSPR reception on 160m Posted on August 4, 2016 by GM1004SWL I set my Elad FDM-S2 and 60ft Sloper antenna to monitor WSPR on 160m over night, conditions were a bit noisy with lightening crashing. It is called the WSPR-AXE and sold for around $60 including the plastic project case. See full list on g4ilo. After building a 5/8 for 20m we compared received signals with a Hy-Gain AV-12AVQ (vertical for 10/15/20m, acts as a 1/4 wave for 20m). In the meantime the antenna has been used on WSPR on 30m with 1 watt and my signal has been received by N0RW in EL87PR a distance of 4364 miles and best DX on receive was YV4GJN in FK50XF at 7522 Km. Model Mid for bands 40m, 30m, 20m and 17m (7MHz, 10MHz, 14MHz and 18MHz) Model High for bands 15m, 12m, 10m and 6m (21MHz, 24MHz, 28MHz and 50MHz) The WSPR Transmitter works on four or more Ham band from 136kHz to 70MHz and is powered from 5V. WSPR - The system for Weak Signal Propagation Reporter makes it easy to compare antennas if your transmitter can easily switch antennas. Nothing different about a WSPR antenna than any other ham application. The height in my trees would be at 65-70 feet. This was on 20m. I feed the doublet with 450 ohm ladder line to a 4:1 Elecraft balun which is connected to the Ultimate 2 transmitter. ran this antenna early in the tests and it decoded slightly less than 1). Both antennas were up about 40' and horizontal. Using lower frequency bands will require additional low-pass filtering at the output. Hello John, I've been reading some practical 40m propagation research a while ago somewhere. 097200 MHz (20m band) Packet: standard WSPR message starting at the 4th, 14th, 24th, 34th, 44th and 54th minute 6-character locator WSPR message starting at the 6th, 16th, 26th, 36th, 46th and 56th minute Example: "OK7DMT JN99 10" and " JN99bl 30". On the other hand it works brilliantly well. FT8 really interests me along with experimenting with antennas and WSPR on 20m. I really wanted to see if the propagation of the weekend was as good as it seemed. Ultimate 3S with 5-band relay module in front, variable LM2596 power supply (with voltmeter) forthe power amplifier behind left,a variable LM2596 supply set for 5 Volts for the Ultimate 3Sin the middle, and the antenna switch to the right in the back. The arrangement could be used as from 20m towards 6m. It was launched on the 16th of May 2020 and has is now starting its third circumnavigation of the planet. Seriously, they do nothing, you don’t need them. 3MHz which is the 3rd harmonic of 7. The antenna it replaced covered 10m, 15m and 20m. Sure would be a great ARRL SS antennas. © 2010-2019 Jari Perkiömäki (OH6BG), James Watson (HZ1JW) and Juho Juopperi (OH8GLV). Longer version. For the purposes of WSPR, I configured my output power as 20mw, which I thought was probably still generous, but in the right ballpark. U02-DDS & WSPR Beacon; DDS & WSPR board; 5watts 11-Band PA; Milliwatt Pwr/Swr Meter; TFT Color Display; the Software; DOWNLOAD; 5W PA Documents; WSPR-Linux Software. Using FT8 and WSPR, you will find that monitoring the above frequencies is a great way to check how your shortwave listening antennas and feed lines are performing. I use a little utility called Mini-deluxe to do the interfacing between SDR and HRD. It needs no radials, no counterpoises, no tuning and you do not need to rotate it. 91kg including the squid pole). I would like to work data modes. Ultimate3 v3. Brian Austin, ZS6BKW. My 20m VDA The only way - imo - to assess the performance of an antenna is to compare it to one or more (default) antennas at the same time. Other applications include antenna testing, frequency stability and frequency accuracy checking. Loop antennas are of two types. The realtime waterfall makes it much easier to ensure that your radio is accurately set to receive in the wspr sub-band. Onboard GPS module and antenna calculates position and altitude. HDSDR is running under Wine on the Mac as it is a Windows program, WSPR is native to OSX. You get6 crystals for ham radio digital bands on 40m and 20m. 9 of the 12 contacts listed are DX. It has a 10-turn choke 1 metre down from the antenna. Longer version. I found a nice QRP WSPR transmitter online from Zachtek. Height above ground is a factor. 44kg (my multi-band EFHW antenna weighs 1. Note: You will always need your highest frequency LPF fitted in slot 1! Physical setup: LPF 1 10m *** This LPF must be fitted, this must be the highest frequency*** LPF 2 15m LPF 3 20m LPF 4 30m LPF 5 40m LPF 0 80m - Located on main PCB. The WSPR-TX Pico is a custom-made WSPR transmitter for Balloon flights. 0956 MHZ (wspr). I confirmed the radiation patterns using a field strength meter in both polarizations and with WSPR data. Using FT8 and WSPR, you will find that monitoring the above frequencies is a great way to check how your shortwave listening antennas and feed lines are performing. June 2017 My Conclusion After almost 2 weeks transmitting my WSPR signal with my small ATAS 100 Antenna and about 20 Watt on 20m, I was pleased to see my signal received in Europe, North America and South America. The antenna is a 13 m doublet oriented with the broadside facing East-West (the EU spots in the figure are from my Ultimate 3 on 21 MHz with another antenna and at another location). There is a Mac OS X build too. 5 watt my signal was received by KE7A in EM12KX at a distance of 4670 miles and best DX on receive was ZL3DMH in RE66IM at. U02-DDS & WSPR Beacon; DDS & WSPR board; 5watts 11-Band PA; Milliwatt Pwr/Swr Meter; TFT Color Display; the Software; DOWNLOAD; 5W PA Documents; WSPR-Linux Software. 10 and 6 meters is not a good pair of bands to pick in my opinion. It sends out a WSPR signals on 20m with a power output of 10 milliwatts. Both antennas were up about 40' and horizontal. My antenna is just a HamStick vertical for 20M on my balcony. A G5RV antenna (80m long) for 160-6m at about 20m height. 095 MHz by pulling in signals from DF3KO, HB9RKF, LY2BUS. I mounted these on a small piece of conduit, and then built a quick stand to hold it up, consisting of a 5 gallon bucket, a small round of particle board that I had left over from another. I decided this weekend to give WSPR a go on 40m using 1 watt to see what results I got. Board fits in Hammond 1455J1202 (120 x 78 x 27 mm) enclosure. 00 for both) they will be used for WSPR (also CW) and will be heading up into my already crowed attic antenna farm. 0386 MHZ (wspr). A WSPR (pronounced 'whisper') beacon is a low power radio transmitter operating on amateur bands from 2m to 160m or approximately 144MHz to 1. The wspr-pi is not on the picture. © 2010-2019 Jari Perkiömäki (OH6BG), James Watson (HZ1JW) and Juho Juopperi (OH8GLV). This was on 20m. June 2017 My Conclusion After almost 2 weeks transmitting my WSPR signal with my small ATAS 100 Antenna and about 20 Watt on 20m, I was pleased to see my signal received in Europe, North America and South America. REMINDER::::::   M0POG ( MC0POG ) “Portable Operating Group. WSPR has been around since 2008, and is a computer program used for weak-signal radio communication between hams. There was a one off to Spain but the consensus from WSRP. 3MHz which is the 3rd harmonic of 7. Antenna is tuned for 10M, then 20M and then 40M using a SWR meter by folding back excess wire till SWR is equal to 1. of the MF antenna and MF. The frequency of 14. Perfect for your direct conversion HF radio projects. With just my earth-electrode antenna (20m separated earth rods, NOTHING in the air) I have got reports on WSPR-2 from Germany with a few mW ERP. Make Offer - FM Broadcast Dipole Antenna with 20 meter cable for FMT-600H 600W FM transmitter 1000W / 1KW FM Broadcast Antenna 87. This is running with only 1 watt of power into a G5RV Jr. In the last few days my station has been running continuously on WSPR frequency hopping between the 80m, 40m, 20m and 10m bands, and I got the chance to spot on 10 meters the V53ARC WSPR beacon in Namibia. I mounted these on a small piece of conduit, and then built a quick stand to hold it up, consisting of a 5 gallon bucket, a small round of particle board that I had left over from another. of coax down to an Rf choke on the ground, and then 50ft. I noticed these on an early visit to the site, left it a couple of months before running the program, and could not find them again!! I expected a link to these frequencies, or to a "getting started" document. The levels available are those defined in the WSPR protocol and supported by the. The program was initially written by Joe, K1JT. Two-band portable dipole antenna system (Band Hopper II) £59. Use the USB mode with your receiver set to 474. 10m telescopic flag pole antenna support dx commander The original DX Commander Classic Telescopic Pole. The TX and solar cells weigh 14 grams, and the whole payload with antenna weighs about 16 grams. On 40 and 80M is where this antenna really shines. This entry was posted in Digital Modes, Ham Radio, News and tagged Bill Patalon, Extreme Tech, Ham Radio, WSPR on September 17, 2019 by Thomas. 0386 MHZ (wspr). Later in the evening I performed some WSPR tests using 20W output on both 80 and 20m. You get6 crystals for ham radio digital bands on 40m and 20m. FT817 SANPCPA sequencer SOTA Squidpole TinyTrak Tuner uhf UV-5R UV5R. Model Mid for bands 40m, 30m, 20m and 17m (7MHz, 10MHz, 14MHz and 18MHz) Model High for bands 15m, 12m, 10m and 6m (21MHz, 24MHz, 28MHz and 50MHz) The WSPR Transmitter works on four or more Ham band from 136kHz to 70MHz and is powered from 5V. The loop is a rectangle which is easier to support on short masts. During testing, using an ALD ATU, the antenna tuned in to 40m, 20m, 17m, 15m,12M and 10m! Good news! 40m loaded dipole SWR. Here are the U3S settings I used to get my first 20m, 40m and 80m WSPR spots. The results are not bad at all. (Don’t be misled, the dipole is not half wave dipole but some non-descript multi band loaded dipole. WSPR is pronounced “Whisper” and is short for “ Weak Signal Propagation Reporter Network “. My interest in WSPR has been rekindled. It was a "normal" qso where we both could share our details, like: name, name of the town and the equipment we used. 20m wspr w/ mfj 1899t I realize using WSPR is kinda “cheating” because you could probably go outside, holler your call sign, and with the capabilities of the software someone in Madagascar would see you on their waterfall…. 75 inch copper cylinders and a 10-turn tuning coil.   The difference is that I counted the number of 2 hour periods with a ping   In the previous study I noted if there was a ping or pings in a given 10 minute grab and then weighted it by a factor of 2 or 3 depending on how brightness and duration of pings. 75 mm 2 household hook-up wire (zip wire), and made a 26 m wire out of it. Perfect for your direct conversion HF radio projects. Tuning to 20m using 0. I would like to work data modes. FT8 JS8 WSPR 40m/20m QRP crystals. EFHW 20m WSPR plot. I have a couple of hours to kill before a round of doctors appointments today, so I decided to WSPR for a while. My 20m VDA The only way - imo - to assess the performance of an antenna is to compare it to one or more (default) antennas at the same time. WSPR : Weak Signal Propagation Reporter Network. They use the same software (WsprryPi) on the Pi to generate a WSPR signal. My other test was to run WSPR at low power on 20m. I may just set up another stealth dipole cut for 17m, my favourite band. For this, I have to use a 4. Tax) Add to Cart. I now have a 20m EH with two 20inch x 1. The antenna is placed indoors in the attic. 095 MHz by pulling in signals from DF3KO, HB9RKF, LY2BUS. Wake Island (KH9) in Pacific (WA2YUN) with 5 /50/100 Watts (Average distance = 11977 km), and all Europe including the "dark" 20m zone to OE3KFB (Austria). Random wire antenna works too. 138 MHz crystal was bought at the German "FUNK" magazine. Tuning is fairly easy on the lower bands, but is quite challenging on 10m-15m due to the significant effects of hand capacitance at those frequencies. The 20m antenna I have been using for several months is only 75 cm, about 30”, tip to tip. 44kg (my multi-band EFHW antenna weighs 1. The length of the transmissions is 110. On some days I had a higher unique count while on others N5CEY did. By 1709 UTC the map looked like this:. The WSPR signal has an FSK speed of 1. This is the magnetic loop assembled to stage where it can be put on the air. Everyday I can reach to the US around 7000km but the record was to ZL1RS in New Zealand around 18000 km from my QTH. Some quick features: Low power 20mW autonomous shortwave WSPR transmitter for the 20m and 30m Amateur bands that continuously transmits its position and altitude during daylight. 91kg including the squid pole). WSPR Callsign: OK7DMT Frequency: 14. There was a one off to Spain but the consensus from WSRP. 8MHz respectively. FT-140-43 ferrite toroid impedance transformer (UnUn). Make Offer - FM Broadcast Dipole Antenna with 20 meter cable for FMT-600H 600W FM transmitter 1000W / 1KW FM Broadcast Antenna 87. Edmonson, II currently serves as the U. 07 - 20m from 5. VK on half a watt - no problems. To make it a multi band (10/20/40/80m) antenna when little space is available: Coil to extend to 40m. Pacific Antenna is the operator of QRPkits, a company that specializes in high quality, low cost QRP Kits. WSPR is basicly a low power automated propagation beacon mode used to study HF propagation. Here's the screen capture from 1330 UTC, March 7th. 8 Sep 2020 20m FT8 overnight. Usually a WSPR station contains a computer and a transceiver, but it is also possible to build very simple beacon transmitters with little effort. After building a 5/8 for 20m we compared received signals with a Hy-Gain AV-12AVQ (vertical for 10/15/20m, acts as a 1/4 wave for 20m). See full list on g4ilo. Anyone know how these two versions are different? Glenn n6gn-- You received this message because you are subscribed to the Google Groups "2 Meter WSPR" group. Simple QRP projects, 10m, 6m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio. antenna at a non-optimal height of about 25-ish feet. Antenna is tuned for 10M, then 20M and then 40M using a SWR meter by folding back excess wire till SWR is equal to 1. Both antennas were up about 40' and horizontal. I am very satisfied with the Antenna. Here are some links to photos of various projects: Baluns 070318_Balun Balun 070701 Balun 07. WSPR Map – 26 April 2017. Local differences in other factors such as terrain, antenna height and antenna orientation can cause signal/noise variations between receiving stations. When reading the blog of Roger, G3XBM, I ran into the WISPY TX beacon. This antenna is based on the G5RV antenna and designed by Dr. Two-band portable dipole antenna system (Band Hopper II) £59. I've had a couple of 5W PSK-31 contacts which went really well with DM780. Horizontal mounting now has the magnetic field lines that are affected by the ground. Other services available on this system: WSPR reception. VK1AD WSPRLite 20m 100 mW signal – 24 hours to 0945 UTC 26 April 2017. It was a "normal" qso where we both could share our details, like: name, name of the town and the equipment we used. I set the 857 to 10W output on the 20M WSPR frequency (14. As for an antenna, I was just using my 20m doublet strapped and fed against ground via a homemade ATU. It was launched on the 16th of May 2020 and has is now starting its third circumnavigation of the planet. and remarkable LU2DOW came in. DX signals were in most cases just a bit stronger on the 5/8. For this, I have to use a 4. But I like to see the peaks when there is one. 05 transmitter u-blox Neo-7M GPS with internal antenna Superantenna MP-1 (modified with longer whip) on balcony. com,1999:blog-5289091959034989657. I use the same Inverted-L's for WSPR as I do for other modes. The second is configured to 8 slots and is only for wspr. This is running with only 1 watt of power into a G5RV Jr. I also tried something called ATU Auto which does it but it's really complicated. My LDG tuner is able to handle some higher SWR, so it has no problem getting almost all of the HF bands to a happy place if needed, but I don't use 30M and 60M much with it. I found a nice QRP WSPR transmitter online from Zachtek. If you have WSPR running then it's a simple step to HRD. The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power (QRP/QRPp) transmissions. Anyone know how these two versions are different? Glenn n6gn-- You received this message because you are subscribed to the Google Groups "2 Meter WSPR" group. of the MF antenna and MF. The higher bands ie 10 meters and 6 (which is actually vhf) are close to line of sight, from our qth (Pittsburgh PA) 10 meters was still poor but we did make dinner contacts. 5dB of gain over a monopole, similar to a horizontal beam antenna. Using the existing scopegenpro application on the Red Pitaya, I was able to confirm the correct connection of the antenna. During the week we both made the WSPR challenge scoreboard. Using 4nec2 modeling I came up with an off center fed (20M 1/2 wave) dipole having a feedpoint positioned where the impedance is about 200 ohms on both bands (using 38 AWG wire. 07 - 20m from 5. “Just do it,” he advises. Deluxe set contents: The Ultimate3S QRSS/WSPR Transmitter Kit transmits various QRSS, Hell, Opera, PI4 and WSPR slow-signal modes on any LF, MF, HF or VHF band (all amateur bands from. Set up properly, the RPi generates 100mW on 20 meters. I also tested the WonderLoop but results were too poor to be shown. Transmitter output is fed into a homemade 40dB power pad. But I like to see the peaks when there is one. 5m roof ladder (with ~1m added length from the roof hitch), which I recently bought for about £100. Realtime WSPR DXplorer Map of HB9RYZ (20 Watt Transmitter) Firmware v1. The implementation presented here can support 5 bands of which I concentrate on 2 bands - 20m and 40m. Using a low 20m dipole slung outside of the meeting room, Brian demonstrated WSPR reception on 14. WSPR Build 3617 installed with no issues on Windows 10 and I was up and running in a few minutes with my FT-897D. They’re not even touching the antenna! Which reminds me, the two 20m radials were made from actual wire (because I had it lying around), so they’re coated in yellow. (Don’t be misled, the dipole is not half wave dipole but some non-descript multi band loaded dipole. It can receive up to 28dB below noise. I believe WSPR can be also be used obtain other meaningful data for example: making antenna comparisons, dispelling many of the wild claims made by the antenna designers and manufacturers. 3MHz which is the 3rd harmonic of 7. Its shape also means a feedpoint impedance nearer 50 ohm. I am using SDR# but any suitable SDR program could be used, I have used SDR-Radio and HDSDR but I have found the SDR# program uses less resources on my. I found a nice QRP WSPR transmitter online from Zachtek. The antenna is a, very inefficient, Wonder-Wand. vy 73 de Holger, OE9GHV. of coax down to an Rf choke on the ground, and then 50ft. Currently the board supports 20m, but other bands are planned. Consequently an accurate time source is necessary. My ham club suggested a 102 feet ZEP antenna for me (center fed) with a ladder line 450 ohm. The frequency of 14. You get6 crystals for ham radio digital bands on 40m and 20m. The spectrum is measured using an SIGLENT SSA3021X analyzer. I also tried something called ATU Auto which does it but it's really complicated. I put it on my things to do list and there it sat until a box arrived this week. Later in the evening I performed some WSPR tests using 20W output on both 80 and 20m. Using a simple dipole antenna a Raspberry Pi running a WSPR transmitter can be heard across the Atlantic when the atmospheric conditions are right.