[time-nuts] FSA3011 Frequency Stability Analyzer, HP 8405A or TAPR TIC

[Wes]

I have an 8405, fortunately in excellent condition, along with the BNC adapters, 
the resistive splitter and the 50-ohm line samplers.  The probe tips are very 
delicate and are probably unobtainium these days.  The electronics in the probes 
can be repaired.  I've been careful with mine and had no failures, but I did 
repair another one many years ago. (See: 
http://www.peakbagging.com/Electronic/HP8405A%20repair.pdf)

One can digitize the analog outputs which I did for some test or another about 
40 years ago.

Wes  N7WS

On 7/30/2019 5:30 AM, Bob kb8tq wrote:
> Hi
>
> The 8405 is a fine device and with working probes can be very useful to have around. Without the
> probes .. not so much. Since they have been around since the 1960’s, the probes may have seen
> quite a bit of wear and tear.
>
> For comparing standards, an RPD-1 and a DVM will kind of / sort of do the same thing. A pair
> of RPD-1’s and a quadrature hybrid into a pair of DVM’s (or ADC’s) will very much do the same thing.
>
> Bob
>
>> On Jul 30, 2019, at 2:04 AM, Perry Sandeen via time-nuts <time-nuts at lists.febo.com> wrote:
>>
>> Yo Bubba Dudes!,
>> I've been following the discussion of the FSA3011 with great interest.
>> Now I'm not in the upper levels of TN esoteric knowledge or have a burning desire to ever get there.   After seeing some small reference somewhere I looked at the HP 8405A on ebay and the price range seemed comparable to the FSA3011. Now the HP 8405 is a huge beast but i was thinking that it might be easier for me to use.  I'm interested in just 5 and 10 MHz oscillator comparison.  I know nothing about computer programs or writing any code.
>> I also looked at the TAPR TIC.
>> So my conclusion are:
>> The FSA3011 may be technically the best BUT it seems to be having some teething problems and I don't really know about what programs it runs or needs.
>> The HP 8405A is a big beast, but it maybe simpler for me to run and get the results I want which is stopping around 10 to ^12th. But I may have to watch it for a long time.
>> The TAPR TIC is small (needed) cheaper (also a plus) and seems to run available software. but needs a dedicated laptop, which is not a real problem. I also have several extra HP 18011's available.
>>
>> Your opinions are gratefully solicited,
>> Regards,
>> Perrier
>>
>> Perrier
>>
>> If I can just download programs AFAIK I could use the TAPR TIC as I have a spare laptop that I could dedicate for its use.  The two advantaages
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