Re: TX protection on RX Loop
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On Fri, Feb 28, 2025 at 01:55 AM, <biastee@...> wrote:
I have seen hams using 1N4007 for attenuating and switching, but I think it is premature to decide on a suitable application without first measuring the minority carrier lifetime. Or has someone already measured them? Sure, there are several measurements available in the web:
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The use of an 1N4007 as P.I.N. diode for Shortwave frequencies is well documented. See Jims link:
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QRP-labs is using 1N4007 as a PIN diode substitute band switch diode in its successful QDX digital TRX, Elecraft used the 1N4007 as PIN Diode in their famous K2 rig.
 https://qrp-labs.com/images/qdx/schem4.png? |