Am 14.03.2015 02:02, schrieb Graham: What power tonight ? G, Full power! But i changed to WSPR-15 now. On LF there is not much activity at all today... 73
Thanks Mike, that's cool! I didn't expect that. There were only a few local stations showing on the map which i 'worked' in the first attempt. I even considered to QRT at night. Obviously it was wort
Hi Alex, On 137.603 there is QRM from DCF39 sidebands. 137.620...137.625 would be a much better choice, at least here in DL. If you like, just QSY. I will detect you then, i hope :-) 73, Stefan Am 14
Bruce, RR, CFM! I'm still QRP on WSPR :-/ Just 750W or so... 73 Am 14.03.2015 18:51, schrieb John Bruce McCreath: Stefan....that would be on 136.000 dial, right? I'll be listening/watching for your s
Hello Lammert, R, that's me. Thanks for watching. Your decode isn't shown in the map. Are you uploading to the database? It would be nice to see a bit more stations there, which could help to rise a
Hi John, Mike, Roman, Lammert and all LF WSPR reporters, Thanks for last nights LF activity. It's still not like in the last years but compared to the last weeks it was quite an active night. I attac
Hi MF, Today i've got i 3rd Raspberry Pi. I quickly installed the WSPR softaware and since a few minutes i am transmitting WSPR-2 on 630m, my usual frequency 475.685 kHz. I'm directly using the GPIO
Hi Joe, As you can see on the image, you can directly generate a RF signal. It works up to 250 MHz, as i read. So you can use this arrangement for all bands up to 2m ! All informations i needed to in
Joe, See attachment. You can simply tell the program your call and locator and frequency and duty cycle and run it from a command line. 73, Stefan Am 19.03.2015 01:02, schrieb [email protected]: Hi Stefa
Hi Fausto, I've been on a party last night. But today i will be there on MF / CW! 73, Stefan Am 21.03.2015 20:57, schrieb Fausto Coletti: Very good propagation this evening on MF but no station qrv..
Hi MF, I've added a simple ICL7667CPA MOSFET-driver to the GPIO of the Raspberry. It's power supply is 5V coming from the GPIO itselfe. This leads to a 5V rectangular signal with lower output impedan
Hi Laurence, These diodes are ZD15 Z-diodes, just to prevent eventual transients damaiging the board. They may catch some energy from nearby lightnig strikes. All this is very unlikely here, in March
Hi Mauro, Yes, for a TX power below 20 dBm i do not care to much about spectrum so i just spent a simple pi filter. For higher power levels i would use a higher order filter, like my PA does anyway.
Hi MF, I'm now running the 7667 at 13.8V supply voltage. The MOSFET driver is easily keyed by the Raspi, directly with its rectangular output. I measured 0.5 W TX power at 50 Ohm. This is what i'm ru
Hi Andy, Am 27.03.2015 11:26, schrieb Guyé André: If you want to have real QRPP test, you can test WSPR at 500 micro watt PAR, and still have lucky reports up to 1500 km. Oh, that will highly depend
Am 27.03.2015 13:08, schrieb F1AFJ: Verry good copy in JN06HT ( your antenna is very effective ) 2015-03-27 02:10 DK7FC 0.475685 -14 0 JN49ik +17 0.050 F1AFJ JN06ht 667 73 ,
Am 27.03.2015 14:43, schrieb Rik Strobbe: Hi Stefan, all, And i wrote an email to PE1NNZ and asked to a modification of the C-program to generate a signal with 4x higher FSK shift. Then it it would b
Just FYI, i switched to my normal "1W" ERP on MF because i need the Raspi for some other tests. I see there are quite many stns "listening" to that time. Obviously it becomes an active MF evening! Un
