Hi Chris; I had a look at the Icom 706. For the receiver down converter the same schematics could be used. To get the 12kHz from the 9Mhz we would need a 9.012MHz crystal made up. Also the input filter has to be custom made unless there are other sources than Icom. I have a contact of a Chinese manufacturer and they could possible make them. The issue is we need a minimum of about 100 pieces each. For the price I would have to inquire. Do you think we could sell 100 units? All the best; Alex VE7DXW
________________________________ From: Chris <cbm...@xtra.co.nz> To: soft_radio@yahoogroups.com Sent: Thu, March 18, 2010 8:41:48 PM Subject: [soft_radio] Re: software transceiver Hi Alex, I guess for anyone who already has a FT-817 your MDSR would be good a good solution. Any chance of a version to suit the Icom 706 family? I would buy one for sure - and maybe cancel my order for the new the new Flex 1500 five watter. See http://www.flex- radio.com/ Products. aspx?topic= F1.5k_features 73, Chris ZL1BOE --- In soft_ra...@yahoogro ups.com, Alex Schwarz <alexschwarz237@ ...> wrote: > > Hi Chris; >  > I am aware of the Flex radios. Also the fact that their TX modulation still > happens inside the radio box. Also the price for the radio is extremely steep. > MDSR is a development that is affordable for the regular HAM operator and it > builds on what is already exists in the shack. > The MDSR concept is so simple that everybody can build it without a lot of > expenses. In the near future we will offer a MDSR kit. >  > The Flex5000 costs a lot of money...the MDSR kit with free software will run > at ablaut $50.- >  > Do I need to say more..... >  > Alex > VE7DXW >  > > > ____________ _________ _________ __ > From: Chris <cbm...@...> > To: soft_ra...@yahoogro ups.com > Sent: Wed, March 17, 2010 2:01:29 PM > Subject: [soft_radio] Re: software transceiver > >  > 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_ra...@yahoogro ups.com, Alex Schwarz <alexschwarz237@ ...> 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 > > >
