Hi Evert, Can you say a bit more about the symptoms of your receiver that lead you to think it's a front-end problem, i.e. a problem occurring before the 1st mixer?
If you were to inject a 20 mVp-p signal into the 1st mixer RF port, that would present a 1 uW power (if the mixer showed a 50 ohm input impedance) or equivalently a -30 dBm signal. That is the same as S9 + 43 dB. It's not going to damage the mixer, but it is likely to overload the downstream stages. With more detailed information about the presumed 'defect', it may be possible to suggest other diagnostics besides probing with a scope. 73, Mike, K8CN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
