[Boatanchors] how to read microvolts

[Jim Wilhite]

Especially above 40 meters.  Above about 14 megacycles, one 
needs to used double shielded cable to go from a well 
shielded generator to the receiver to prevent crossfeed of 
the signal into a hot receiver..

In most cases, all you care to do with a generator is set 
the S-Meter or AC voltmeter for max as you tune it up.

Jim
W5JO




> Dick,
> You really can't without expensive lab equipment, but why 
> try?
> Verify that the values in the attenuator(s) are correct, 
> measure at the "millivolt" level and do the math.
>
> As others have mentioned the old Heath generators were 
> very leaky.  You can't trust the measurements anyway.
>
> Jim
>
>> This may be a dumb question but I really cannot find a 
>> way to read microvolts of RF.  My old Heath RF sig gen 
>> has bad resistors in the attenuator but I only know that 
>> by reading the values of the resistors. What can I use to 
>> read the output of the sig gen in very small values of 
>> microvolts?
>>
>> My scope will not read that low and my VTVM with RF probe 
>> will not read it either. I can read millivolts on various 
>> pieces of my test equipment but the only thing I can 
>> think of is to boost the signal with an amp and then 
>> allow for the difference as long as I can be sure of the 
>> total gain of the amp.
>>
>> Please enlighten me.
>> Thanks and 73, Dick KF4NS
>> St Petersburg, FL 33714 USA
>> Keep The Glow!
>>