[time-nuts] GPSDO advice

[Wes]

Hi Bob,

Honestly, I don't have any particular holdover requirements in mind, just that 
it has some :-)  This is just one of those nutty things.  You must understand.

Wes  N7WS


On 4/24/2020 10:14 AM, Bob kb8tq wrote:
> Hi
>
>> On Apr 24, 2020, at 12:56 PM, Wes <wes at triconet.org> wrote:
>>
>> No, I'm not looking for advice on how to build one but what I might buy.  My need is strictly hobbyist (ham radio).  I currently have a Bodnar dual frequency unit, that gives me frequency and a TAPR, (Synergy Systems) that gives me 1 pps, but I would like something that gives me both, with better performance (holdover).
> ….. holdover?
>
> What are your holdover requirements and what drives them? That is likely to have a
> significant impact on “what makes sense”. Holdover on most GPSDO’s is driven by
> a network timing requirement ( X us over Y hours ….). Most basement lab needs are
> not driven in the same fashion.
>
>> The Jackson Lab FireFly-IIA
> I’m sure a call to Jackson Labs will get you the current price on any of their products.
>
> Bob
>
>>    and the lookalike Symmetricom GPS-2500 both look interesting.  But, price and availability are elusive.  Any advice on these or alternatives will be appreciated.
>>
>> Wes   N7WS
>>
>>
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