[eagle] Re: Receiver Spec vs. ATP, a few Suggestions and a Question or Two
rjansson at cfl.rr.com
Sat Jul 28 11:32:26 PDT 2007
I do not know how you can be concerned with storage temperatures of -60°C
when you have just soldered a PCB with temperatures of from two to a a few
hundred degrees! It seems to me that the stress of soldering would vastly
exceed those of a low storage temperature. The thermal excursions of
soldering considerably exceed those of the storage situation.
Dick Jansson, KD1K
<mailto:kd1k at amsat.org> kd1k at amsat.org
<mailto:kd1k at arrl.net> kd1k at arrl.net
From: eagle-bounces at amsat.org [mailto:eagle-bounces at amsat.org] On Behalf Of
Sent: Saturday, 28 July, 2007 05.23
To: 'John B. Stephensen'
Cc: David Smith; Dave Black (Work); Dave Black (Home); eagle at amsat.org;
Samsonoff at Mac. Com; Juan.Rivera (Work)
Subject: [eagle] Receiver Spec vs. ATP, a few Suggestions and a Question or
I also take issue with the -60C minimum power-down temperature. I think
this is unrealistic just from a CTE mismatch perspective. The reliability
of anything subjected to that wide a temperature spread is going to suffer.
A way must be found to raise that temperature.
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