> The connection to the main Rx is a bit touchy. I used a gimmick and > a small cap but that is less than ideal. Clifton Labs offers a > isolator on a small board that is the real answer.
Yes, you need something so the connection doesn't de-tune the Drake. The Softrock radiates alot of signal into the IF too. The Clifton Labs amp looks great, I will probably get one for my Kenwood mod. I have used a version of this FET voltage follower by JA9MAT in my Icom mod: http://f1.grp.yahoofs.com/v1/YNEzTyz6EEdqb4TuXCFlakJZdWqkbYyA_2YflzIHrIBF1FMj4uIanoWVUjTzqO2bWSnPTV83qlCBZinR22BhWAFbwS-Y/JA9MAT%20-%20PCR100%2010.7MHz%20IF%20TAP/PCR100_IF_Mod_with_SRLite.JPG The Softrock input filter is pretty broad, you might find the 40meter version is fine as-is, or else just add some turns to the coils. 73, Gary WB6OGD ----- Original Message ----- From: Curt <cptc...@flash.net> To: drakelist@zerobeat.net Sent: Thu, 09 Feb 2012 13:21:56 -0000 (UTC) Subject: Re: [Drakelist] pan adapter Hi Carey: I did exactly that a few years ago with my a version. It works really well and is a excellent way to get involved with SDR, the Software, and get a panadapter along the way. You need to get the proper IF version softrock. The SDR needs to be tapped off of the 1st IF before the filtering. The SDR needs to be able to see unfiltered RF at the IF frequency. You need as good a Soundcard as you can afford. The Delta44 is one of the ones widely used. The connection to the main Rx is a bit touchy. I used a gimmick and a small cap but that is less than ideal. Clifton Labs offers a isolator on a small board that is the real answer. The Softrock for the IF will be different. The coils are different as is the crystal. Tony Parks was good about answering questions and providing info. He can probaly supply the stuff you need to convert the 40M kit since I don't think the IF kit currently being done includes the Drake IF freq. Hope this helps Curt KU8L On 2/8/2012 10:34 PM, Carey Lockhart, KC5GTT wrote: Hello Gang, i have a 13 tube r4a i would like to set up on powersdr or another sdr app. is there a website or can someone point me in the right direction to what i need to do. i do have so 40m softrock and a flex 1500. either should d the job i would think. ThanksCarey, kc5gtt _______________________________________________ Drakelist mailing list Drakelist@zerobeat.nethttp://mailman.zerobeat.net/mailman/listinfo/drakelist
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