Re: [soft_radio] Re: software transceiver
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
Re: [soft_radio] Re: software transceiver
Hi Chris; What is the 2nd IF frequency of the Icom-706. I would be very interested to make it work in other radios. I was looking at the Flex-1500 too and then I tried the software and I was not impressed with it. The software is the weak link of the Flex radio. It has been written quite a while ago and it was never revised or updated to reflect today’s computer needs. Also the DADP that we are going to launch uses similar software filters that the Flex radio software uses and the base audio engine is written in Java. If you know NetBeans and Java we could need the help! The MDSR kit is still a while away, but we are moving into that direction Thanks; 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
Re: [soft_radio] Re: software transceiver
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...@xtra.co.nz To: soft_radio@yahoogroups.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
