[time-nuts] Broadband synthesizer

[paul swed]

Thats very helpful
If you can get away with 10kc to 80 MC an HP 3335 will do millihertz res.
Also can set the level in 100th db increments. Very nice for injecting.
Price is very reasonable and can be locked to an external ref. Thats the way
I use mine.
I have picked mine up from $35-75. But that was pre ePay so heavens knows
what they are today.
Regards
Paul
WB8TSL

On Tue, Jul 12, 2011 at 10:04 PM, Bill Dailey <docdailey at gmail.com> wrote:

>
> Ok, I have a dds receiver locked to a gpsdo, the radio can only be tuned in
>  1 hz increments but should be dead on. I can feed the passband into speclab
> via VAC and measure a carrier OTA.  No problem there...can get decent
> resolution but there is some uncertainty with regard to the dds (frequent
> dependent).  What I would like do is inject a known frequency to either
> zero-beat the carrier (assuming I can get something with millihertz
> resolution) or provide a non-superimposed carrier that I can reference via
> difference in speclab.  The whole point is to eliminate or measure the dds
> offset at a particular frequency.
>
>
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