Search found 4 matches

by markotime
Mon Sep 24, 2018 2:49 pm
Forum: SDRplay related
Topic: zinwell sup2400 down converter
Replies: 5
Views: 16551

Re: zinwell sup2400 down converter

Here's the mod article. Unfortunately, modified units are NOT for sale any more.
http://www.kd0cq.com/2016/04/part-ii-th ... -for-5-00/
by markotime
Sat Sep 22, 2018 3:54 pm
Forum: SDRplay related
Topic: zinwell sup2400 down converter
Replies: 5
Views: 16551

Re: zinwell sup2400 down converter

IT was quite easy to modify. I used one of those inexpensive USB powered soldering irons, which has a very small tip (and comes with some very fine gauge solder). There is one component that needed a hotter iron to remove, adjacent the resonator (blue blob). I like wire-wrap wire for jumpers as the ...
by markotime
Thu Sep 20, 2018 6:03 pm
Forum: SDRplay related
Topic: zinwell sup2400 down converter
Replies: 5
Views: 16551

Re: zinwell sup2400 down converter

The sup-2400 wants 12vdc, but the internal 7805 regulator can be bypassed to allow 5vdc operation. I may experiment in the coming weeks. Love my RSP1A!
by markotime
Mon Sep 17, 2018 5:15 pm
Forum: SDRplay related
Topic: zinwell sup2400 down converter
Replies: 5
Views: 16551

zinwell sup2400 down converter

An article shows how to modify the sup-2400 to allow SDRs to receive signals above 2GHz. I can't find specs on the unit and am wondering if the 100mA bias-tee of the RSP1a is adequate. (Haven't received my RSP1a yet, jsut want to be ready). thanks! http://www.kd0cq.com/2016/04/part-ii-the-mod-receiv...