Hi Peter,
That's the what I've gone with this. Am testing on 28mhz but am still getting intermessage drift. May need to go warmer?
And maybe further reduce heat ingress from the pa section. Its not easy!
73's
De Andy
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On Thu, Aug 1, 2013 10:41 PM PDT peter_helm@... wrote:
A temperature controlled heater placed inside the U2 case set for say ten degrees above the highest expected ambient temperature. To warm just the air inside the box, rather than heat individual components.
E.g crystals.
73's Peter G8AEN
