On 7 Jan 2008 at 8:33, Rasputin Novgorod wrote: > Hi guys: > > I haven't been following this subject as well as I should, > but have been intrigued with the idea of SDR, and especially > all the neat software available. As a starter, I bought JA7TDO's > Soft66DB2 SDR and the DDS-34 DDS board for it. If they work, > a very economical way to get started. (available on eBay). > > http://zao.jp/radio/sft66db2/ > http://zao.jp/radio/sft66db2/index2.php > http://zao.jp/radio/dds34en/index_e.php > http://stores.ebay.com/HAMShopJapan > > I was wondering about using some of my existing hardware > as a front-end for this? In other words, take the IF out from > my Harris 590 radio and feed it into the Soft66DB2 SDR (bypassing > the SDR bandpass filter on the input). Then I could use > the Harris normally, but also have I/Q outputs so I get > all the SDR software features. Of course, it would > be limited by the Harris's IF filters. > > In other words, the Harris would be a Preselector/RF amp > for the Soft66DB2 SDR. Please bear in mind that I barely > know what I'm talking about. So if this is dumb, un-advisable, > or pointless, (or an interesting idea) please let me > know your thoughts. > > Sincerely > /b > Check some of the past messages on the softrock40 group. A lot of people there are connecting to the IF's of their radios. Tony also sells versions with crystals for some of the popular IF's.
Dave - WB6DHW <http://wb6dhw.com>
