It¡¯s not ¡®Network 105¡¯ specifically, but GB7RDG is a well-connected packet node and BBS, with a 40m port, located in Reading, the south east of England, with onward RF links to the growing UK packet network.
24/7 service.
600bps QPSK IL2P+CRC (supported by QtSoundModem)
Centre frequency 7052.75 - in the automated 500Hz+ unattended data stations section of our band plan?
Dial: 7051.25 USB with a 1500Hz audio centre frequency?
Regular beacon.
Toying with the idea of having it switch to a higher bitrate mode for a certain period each hour.
See you there?
Tom
Hello Network 105,
I am an occasional participant in Packet Radio and I was wondering we could be more aggressive with our spectrum usage and software configuration.
I know Direwolf and UZ7HO Soundmodem seem to support multiple modems receiving at once, though finding people to test dual-port/model soundmodem is difficult. For USA operators, I would hope they could be more encouraged to try out more unusual 'open' packet modes with the baud limit being replaced with that 2.8Khz frequency limit
Given the growing amount of VARA users are giving us a lot of interference/overlap with their negative/lower slot frequencies, I feel like having a fixed center frequency/tones/spot to park 600baud and possibly 1200Baud would remind non-traditional packet users to be more mindful and let us enjoy more speed when links are strong enough.?
For example, on Network 40/ 7.104 LSB, my Soundmodem at 300Baud lists 1700Hz as the center freq with the standard 1600+1800 tones/ends.
It would be nice if more of us could agree to set up a spare 600Baud modem to say ~1225-1250Hz center freq (1000hz + 1450hz tones)
with a further spare channel / slot at 750Hz for 525 + 975Hz tones for those with newer radios who don't need to worry about very aggressive band filters
on TX (I'm on a FT991a now, but my FT-990 had this lower power thing on <1200hz and >2200hz)
As an option for occasional usage, a single 1200Baud 'Channel' could be made with waterfall/center freq of 1000 for tones of 500Hz and 1500Hz.This would at least keep the primary 300baud tones/center freq untouched by transmission overlap, and would ideally allow operators with software modems to do their beacons on FX/AX.25 300Baud, but can use the Port option (ie in Easyterm) to specify the speed of the connection with a decent amount of operators eventually being able to hear both 300+600/1200baud.
I feel with modern software and FX25/FEC being an option (that should be a default, honestly) higher baud modes shouldn't be 'unusable' due to their increased bandwidth/speed on moderate HF/SSB conditions, which that plus legacy equipment could keep people wary of adoption?
Of course, it would also be of help to maybe talk with the VARAC Chat program folks who have decided to widely expand VARA's used frequencies with their slot selection system to not go below 14.105/7.105 USB?
I'm probably missing a bunch of other information, but not having to do scheds to test high-baud packet in the USA as we move towards the assumption more stations are using it (maybe note in our beacons too, for keyboard to keyboard?) would be good
