[time-nuts] OT favorite signal generator?

Lux, James P james.p.lux at jpl.nasa.gov
Fri Jun 19 10:22:46 EDT 2009




On 6/19/09 6:38 AM, "optomatic at rogers.com" <optomatic at rogers.com> wrote:

> Hey Robert
> 
> Great tip about the attenuator.
> 
> I looked up some models on the internet and some look fairly expensive.
> I know that I will always be injecting low voltage signals, do you think
> it would be wise to buy a cheaper fixed attenuator, let's say 20dB?, and
> then just depend on the variable rate that the signal generator?
> 

How precise does your level have to be? How stable?
There are surplus attenuators available all over the place, some variable
ones too.  
MiniCircuits has VAT-nn attenuators which are relatively inexpensive (not by
"found it at a ham-fest 30 years ago" standards, though)

Building your own attenuator using chip resistors is another possibility.





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