Of course its a new and exciting technology, but I doubt that it is on one and the same level with a regular exchange and therefore should not be considered equally verifying a valid contact. Shades
OK too bad you can't resolve it with your existing Sound Card. When considering a USB SC think about SDR (the future of Ham Radio). M-Audio is considered a good card but see M0KGK's site for compari
M0FMT wrote: Veeeery interesting Alberto Would that give me 192 Kc/s of tunable band width on my SDR radio given the right software? There has been a lot of debate on the softrock reflector but this
In Europe, the Graves satellite radar on 140.050 is a good way to watch pings with something like Argo or Spectrum Lab. Alan, are you sure about that frequency ? I read on another group that the Gra
I am running a USB-connected Creative Labs sound blaster model SB0270 with Argo V1 build 134 on an XP SP3 system. The sampling rate of a sound card up to Windows 98 used to be set at the hardware le
Is there anybody in Europe that was able to receive the Japanese time&frequency standard station at 40 kHz ? If yes, could you please give details about the equipments, especially the antenna, used ?
Received IK1HSS in QRSS3 mode at 137.770 kHz. He seems to have stopped just now (22:33 UTC) transmitting, exactly a few seconds before I was ready to do a screen capture....:-) 73 Alberto I2PHD
Some activity recorded on the 500 kHz band this afternoon. DI2AG : DI2AM in QRSS3 OK0EMW in QRSS3 at 505091 Hz (abt) in JN88ks (some QSB...) 73 Alberto I2PHD
Markus Vester wrote: Dear LF, I have recently installed WSPR 2.0 on one older XP machine and found that decodes were erratic, and the frequency readout was about 10 Hz high. The reason seems to be th
Johan H. Bodin wrote: Yes, those Trappiste beers are quite interesting, Chimay for example which is available in different signal strengths (QRP..QRO), but I don't believe it is possible to get them
This sounds quite interesting. An other option is to use a twisted pair of CAT5 network cable and rf-isolation transformers at the antenne and receiver end. The power for the active antenna can be fe
This is how I see now (19:10 UTC, Dec 12) that segment of band http://www.sdradio.eu/images/25-50kHz.gif Mini-whip + SDR-IQ 73 Alberto I2PHD -- 22.1 kHz GQD (Anthorn), strong, 23.4 kHz DHO, extremely
I have used a large coffee tin (30 cm high and 27 cm diameter), for a passive electric field probe. The capacitance was way to high for active circuitry. Instead a rf transformer wound on a hefty hig
LF group, tuning at 128.930 kHz, the frequency of the German power utility station, in USB mode, I can hear what is possible to listen to in this 30 sec. MP3 file : http://www.sdradio.eu/audio/luxmbr
My Conclusion: It seems that a short receiving antenna can bee seen as a capacitive divider out of the capacity between far field and antenna and the capacity between antenna and ground. If the wire
I cannot agree, a Belgian beer can will provide at least 10dB better SNR ;-) I tend to agree with Rik, the best beers I ever drank were those in La Grande Place in Bruxelles, many years ago, when I w
The "black box operators" must be protected against this danger, otherwise they might go QRT due to "natural selection" :-) Well, should that happen, they will be candidates for the Darwin Award... i
Perfect reception of SAQ this morning, together with some signals of unknown origin (see the page below). Screen capture and audio here : http://www.sdradio.eu/SAQ_2009_12_24.html As usual, no radio
