HI Lowfers, my new laptop (toshiba Satellite 1710CDS) has no RS-232 ports. Only one parallel port and two usb ports. So I have to resume an old 80286 MS-DOS only PC for transmitting purpose. I'm sear
Hello Wolf and all, I'm not shure about my idea, coming from experience in linear world BPSK modulation, but I suggest to others my think. BPSK modulation consist in multiplying a carrier for +1 or -
HI Steve TNX for yous suggestions. I agee, for next time I change the Xtal. I'm working around a direct convertion receiber and a better loading coil. I hope to connect you and other LF group members
Hi Steve and all, OK for the suggestion. I'm sorry but for now I can't change the frequency because I transmit from my holiday home and I'm using a 27 Mhz CB Xtal on my transmitter. In my usual home
Hallo LF group, I confirm my transmitting tests. My beacon was on air this evening from 21.00 to 22.00 UTC on 136.375 kHz. I plan to transmit nes days as follow: 8 dec from 10.00 to 11.00 and from 20
Well Mark, I noted your receive windows and if possible I put my beacon on the air tose times. 73 Claudio Ok Claudio I could receive you Friday evening between 20:00 and 21:00 UTC and saturday and su
Hallo Mark, I transmit from a second home, I'm never tested internet connectivity from there. If I can setup internet I post the time of beacon activity. From there I think to transmit on 7/12 aftern
Hallo LF group, I'm planning to transmit some slow CW beacon from 7 to 10 december. My working conditions: QRG 136.375 kHz, Pout about 100W, 30 m wire antenna, lossy coil :-( In those day I plan to b
Hello LF group, I agree with Rik arguments about BPSK and I add some more considerations. Excellent paper from Jim, it seems a good starting point for an open discussion. SNIP An additional differenc
I'm ready to make some test on 136 kHz. In this week end I plan to make some CQ on QRSS. QRG and time will be posted to morrow on the reflector. My station is described on www.qsl.net/ik2pii. 73 de i
I'm a very, very newcomer in the world of LF...I visited a lot of sites on internet to collect some informations about the activity, and plan to built the little transmitter from GW4ALG (the marathon
At 08.55 26/08/2001, you wrote: Hi All The static started yesterday afternoon and is just as bad this morning. It is very severe with prolonged bursts, never heard it so bad for a long time, consider
Hello John, TNX to you and to all lowfers fro the reports. Also on my QTH there was strong noise. To day I measured the antenna resistance, it is 60 ohms, in April it was about 50 ohms. Now I know be
HI lowfers, my CQ was on the air this morning from 08.00 to 10.00 UTC. Very bed WX, strong rain, the antenna and the loading coil where completly wetted, no chances to measure antenna current. Also a
Hi Lowfers, I try some CQ next week end, Saturday and Sunday, QRG 137.710 about, QTR from 08.00 to 10.00 UTC (if wether is OK, storms announced). See my working conditions at www.qsl.net/ik2pii. Plea
My FT-890 is more sensitive on 136 kHz when i switch the preamp **off** .. anyone else noticed that with a general-coverage rx? the preamp seems to work like an attentuator down there (unfortunately
HI Lowfers. I have a chance to install a 136 kHz QRSS beacon in ARI Milano radio club (north Italy). Before to propose the project to radio club I ask LF peaple for some comments: 1 - This beacon may
Hi Laurie, strong signal here in Milano, 20 dB over the noise, received with my direct convertion receiver and tuned loop, 1.5 m side, on my balcony, many Christmas tree lights doing QRM. 73 de Claud
I have thought about keeping the primary coil in mineral oil for heat dissipation, any suggestions about cooling of the primary? What do you all use to keep your LF antennas cool? Why not using a cop
