[hpsdr] To Fan or Not to Fan

Tim O'Rourke w4yn at earthlink.net
Wed Jun 3 04:39:39 PDT 2009


I am awaiting Pandora and wondering about fan requirements in general.
I have mine mounted in a mini-atx case with 5 watt pa and the temperature in the case does not seem to be an issue. That was the case until I installoed the LPU which disapates significant heat when left on for extended periods. Assuming that we will be using LPU for a while it seems like a fan for Pandora may be necessary even with out a high output PA.
Any thoughts on this and possibly a fan recomendation so I can get one on order???
Speaking of PA's, it would be nice to have a few independant, read isolated, Keying or PTTOUT outputs for add on "stuff". Some of my "stuff", linears etc, do not like sharing a common keying ground. I added a small relay to Gerd's very nice RX/TX switch which is working FB for my setup now but when Alex and other modules are added it would be nice to have this feature built in. Maybe a card with a few relays and and headers is all that is needed. You could use jumpers to configure.
Tim W4YN 

Tim O'Rourke 
W4YN at ARRL.Net
Low Power Amateur Radio Rocks 
Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
NHRA Life Member



More information about the Hpsdr mailing list