Hi Alex,
What the URL describes seems to be very far from a "full blown software transceiver" in that it needs a soundcard and a complete conventional radio (FT-817) to work! For true "full blown SDR transceivers you should take a look at the Flex 5000, 3000 and 1500 transceivers. They are are highly sophisticated complete SDR transceivers. The Flex 5000 is is up there with the best conventional ham transceivers and are now the choice of many "big gun" DX'ers who have shelved top class conventional rigs like Icom 7700, FTDX9000, Elecraft K3, etc. At a another level you should take a look at the relatively low cost Icom 7000 transceiver - one of a number of contemporary transceivers using so called "IF DSP". The Icom 7000 does not even claim to be an SDR and probably most owners have no idea that at its lowest IF of 16.5KHz it is pure SDR with all filters, modulation, demodulation etc being implemented digitally. This at least matches what you are describing and it does not even need a computer! About all that is missing is a decent spectrum and waterfall display. Add on a RFSpace SDRIQ which can track automatically and you fix that and get two extra demodulation channels. 73, Chris ZL1BOE --- In soft_radio@yahoogroups.com, Alex Schwarz <alexschwarz...@...> wrote: > > Hi Leif; > > I read your e-mail to ask if there is a software transceiver out there. And > yes there is...it is called MDSR (Modulation Demodulation Software radio). > > It uses the optional filter port of an already existing radio like the FT-817 > and up and downconverts the IF to 12kHz. This is fed into the soundcard in > and output and you have a full blown softeware transceiver. I am pretty sure > this concept would work for 2m. > > Please check out: http://users.skynet.be/myspace/mdsr and select the BiLIF > link for the writeup. > > > Thanks; > > Alex > VE7DXW >
