[Boatanchors] Beckman 905B WWV Receiver

[rbethman]

I have an HP-3336B.

I have checked it against WWV.

I've also looked at the WWV signal with mt Tektronix 5540.

My HP-3336B was also still in calibration by the USAF when procured from 
USAF Surplus.

I couldn't get it any closer than what it already was.

It only takes about 15 to 30 minutes for the frequency standard to 
settle in with the internal crystal oven.

It is rock stable.

I have calibrated my B&K 8505 against it.  That was more a pain than 
anything else.

Bob - N0DGN

On 3/14/2013 12:47 PM, J. Forster wrote:
> Propagation delays only matter for time transfer. Only the variability of
> propagation delays are of concern when calibrating time interval.
>
> The propagation quality can be seen by using an X-Y scope display. The
> figure jitter is propagation. And secular shape changes are frequency
> difference.
>
> YMWVOC,
>
> -John
>
>> First question:
>>
>> Does your HP-3325A have Option 001 installed?
>>
>> If so, then it has "High Stability Frequency Reference" installed inside.
>>
>> Have you downloaded the manual from Agilent?
>>
>> Frequency Accuracy is +/-  10^-6 of selected value.
>>
>> I don't think that zero beating against WWV will get you any closer.
>> The main reason is WWV propagation delays.
>>
>> Bob - N0DGN
>>