Of course, about 1 minute after I sent the message, I discovered the information on the center frequency and it is as I had hoped.
But ... Wow! Just tried out some of the PSKmail features and find it very interesting. Once I realized that the Ping command will bring up any of the servers that can hear you and tried it, the latency is about zero. Almost instant response from a human perspective. Then no problem connecting to the server that I kicked up. This is better than any other mail system I have used in the past. Issues/Suggestions: - It was very difficult to actually use the frequency due to many other stations transmitting on top of the server and my signals. - on the 30 meter band here in Region 2, the 10.140-10.150 area is quite busy with the wide bandwidth modes that must operate here in order to follow the band plan and FCC requirements for wide band. For example, one of the two tones of a Pactor station covered the PSK250 tone and then a MIL-STD-188-141A 8FSK125 transmission had its uppermost tone obliterating anything that tries to use a narrow mode centered on 10.148. In fact, at one point all three of us were trying to us the same frequency! - since PSK250 is just about right at 500 Hz in bandwidth, wouldn't it be more appropriate to keep PSKmail in the 10.130-10.140 area which has the band plan already designed for modes up to 500 Hz wide? We do need to keep away from the commercial?/government? RTTY station located around 10.130. - here in the U.S. stations that are operating automatically on HF can operate anyplace within the RTTY/data portions of the bands as long as the server stations only transmits when interrogated by a human operator on the other side. And I think I am correct that this is the way PSKmail works. - the other issue is the pulling of fldigi's receive frequency too far from the center frequency. I am skeptical that PSK250 is the best mode for any but good conditions since it is not very sensitive (- 2 db SNR). It will be a tremendous benefit if we can use modes such as DominoEX that would not require AFC. 73, Rick, KV9U Rick W wrote: > What should be the set frequency? If the listed frequency of the server > is 10.148, does that mean the center frequency? Therefore, if you have > the center frequency set at 1500 Hz audio, you would put the rig at > 10.146.5 USB dial frequency? > > 73, > > Rick, KV9U >
