Anyone have a Dragon SCS modem for sale ? It is really the only digital mode I have not tried and , despite knowing there is little activity other that Winlink stuff, I am interested in experimenting

As you can probably tell, I have essentially lost interest in this group mail list. If anyone wants to take over as "owner", let me know Andy K3UK

Shares net very busy at this time, with more activity planned this evening. This might be standard, but some importance seemed to being imparted to not miss it. Much of net controls info was also in

TS-590 Family Resources Page: November 2017 Update *The TS-590 Family Resources Page …………….. g3nrw.net/TS-590* *New this month* Two new items this month: *

That CW / Process Gain test for Part-15 products seems like a joke now but it was symptomatic of the excessive regulation that the FCC used to indulge in. Fortunately the FCC under Ajit Pai is now

I spotted your post a while ago Trevor, but looking around since, its difficult to concur , not that it's a laudable concept , where it not for the time and effort that has been expended,

TS-590 Family Resources Page: October 2017 Update LATEST NEWS *New this month* Several people, including myself, have experienced issues lately with device drivers

Yes existing VHF/UHF rigs lock you into one modulation type for 9600 bps. Maybe in coming years we'll see some fully programmable SDR transceivers for those bands. Also on the horizon will be the

Hi Trevor , It's Lucky that's a clarification of the regulations , one could be slightly confused by a more in-depth version . At the moment , the packet fact finding , has been confounded

VARA Modem, new gateway stations , joined the tests , check the 'Public Gateways' list from the application , for the latest station/frequency NB- Frequency is listed in the Dial Set USB

Graham, Just run across this useful summary of US Regs regarding Digital Modes http://www.qsl.net/kb9mwr/projects/wireless/clarify.html 73 Trevor M5AKA

https://www.amateurfunk-sulingen.de/forum/index.php?board=18 this is discussion forum for the ovi40 sdr (if you wanna know2 more look there or drop a line if you wanna become a member

Patrick: I agree -- David Rowe has done a wonderful job given the 1.2 kHz bandwidth. It may sound a bit 'robotic' and decoding can sometimes be susceptible to audio artifacts if

Sigi: Glad you made the suggestion. I've used the FreeDV waveform in the Flex 6300 as well so that makes 2 rigs that have this option. It will be interesting to see if other

Siegfried or others ... where might we learn more about this "mchf on steroids"? Also, being able to do QRP is attractive to me. Nick N1KMP ----------------------- Siegfried Jackstien wrote on

Ok Trevor I was using baud in the context of channel transfer rate , hence the 2.4k and ofdm qualifier But, by what ever means ... that's the information I was looking for ! Tnx-G,

Graham wrote "So , packet at say, 1200 bauds in 2.4 KHz ssb channel , using , ofdm would be acceptable over a HF link" No, 1200 baud is not permitted in USA on frequencies below 28 MHz,

Yes thank's Rick The concern was, is packet defined by ''name'' with in the part-97 , similar as spread spectrum is defined by name alone ? Its reasonable to link the 300 bauds used by

Graham, It is important to separate and understand terms: Modulation type: Common types are: Frequency shift keying FSK, sometimes called nFSK, 4FSK, 8FSK etc) Phase shift keying

patrick ... in the near future there will be an "mchf on steroids" available (developed in our german mchf group) ... if you want ... build an mchf ... if you can wait a bit ... build