As others, SSB Electronics model that is RF switched. I *have* transmitted 100+ watts into it, though not on purpose, and it works just fine. I got the RF switched model as a "just in case" bit of insurance, and am glad I did.
It's been reported here a few years ago that sometimes there's a little "burp" of RF that squirts out when a transceiver is powered up. Seems unlikely , but if so, maybe that did it?
If I recall, the discussion was about people frying their AO-40 S-band down converters by accidentally transmitting into them. An somewhat less certain recollection is that someone came up with a simple circuit that would clamp the RF to a more forgiving, if not totally safe level. As an alternative to an RF switched preamp model, perhaps a stroll through the archives might net a different solution.
Good luck,
Greg KO6TH
From: [email protected] To: [email protected] Date: Wed, 16 Feb 2011 13:59:41 -0800 Subject: [amsat-bb] pre amp help..
I just sent my ARR pre amp back to ARR for repair for the 3rd time !
(pretty sure I did not tx through it )
What are people using for pre amps. I only see the Mirage as an alternative. Any other choices. I'm kind of disappointed in ARR products. Is there a pre amp that you can tx through preventing accidental frying?
Any thoughts appreciated
73, Ted, K7TRK _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb