[hpsdr] test equipment

[tom]

after watching all the development for all the boards that gives a reason to have some kind of self checking mode or signals to prove that the levels are right. 
1. rf to receiver -73 db with usb or lsb to check either level
2. audio to chase thru all the ckts and a way to measure the results going thru
3. mike level check with a read out of some kind
4. a relay output for keying an amp
5. a relay out for blinking a led for the on the air sign
6. a place to put a volume control knob for us hard of hearing .
7. what else is needed to make this a hardware guy's radio that he  can see if it is working !
 
my 3.55555555555 cents worth

tom
w0kgw at citlink.net
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