I wanted to report back on the results of my SDR-1000 fan mod experience. Based on Tim's suggestion, I added a fan speed controller designed by Paul W1GHZ -- Chuck, WA3IAC sells a very reasonable kit with all the parts. Can't get much easier than that!
It's a very simple kit to put together... the hardest part for me was figuring out where and how to install it in my SDR-1000 (OK, I'm not too clever about these things -- I'm a software guy, remember?). I wound up affixing the controller board to the inside of the front panel, next to the fan as Tim suggested, using some Velcro and a couple of rubber feet as standoffs. I put the LM34 temp sensor in the free space over one of the PA chips and under the ATU board. I figure this should be "good enough" given that I don't ever run the rig over 40W out, heat rises, and all that. Was that a fatal error? Results: Sure enough... the fan speeds up and the fan slows down. So, I'm pretty pleased with that couple of hours work. Thanks very much, Tim. I really appreciate that pointer to W1GHZ's design. Another SDR-1000 user (I'm sorry, I can't find your post) was going to swap the fan with a quieter one... Any results from that? de Peter K1PGV _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
