[time-nuts] Ventilation of HP 58503A GPS time & frequency reference receiver

Bob Camp kb8tq at n1k.org
Sun Dec 14 16:13:54 EST 2014


Hi

If you type 58503A into Google, it will come up with a whole raft of pictures of various angles on the device. Since none of them are from HP / Symmetricom, any / all *could* be fakes. Logic suggests that at least 90% of them are the real thing. 

Bob

> On Dec 14, 2014, at 4:08 PM, Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby at kirkbymicrowave.co.uk> wrote:
> 
> Dr. David Kirkby Ph.D CEng MIET
> Kirkby Microwave Ltd
> Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
> Registered in England and Wales, company number 08914892.
> http://www.kirkbymicrowave.co.uk/
> Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)
> 
> 
> On 14 December 2014 at 20:07, Alan Hochhalter <alanh137 at gmail.com> wrote:
>> The 58503A in the picture on leapsecond.com looks very similar to my older
>> 34401A DVM which doesn't have separate feet.
> 
> Where can I find the 58503A on leapsecond.com ? I don't see any GPS
> receivers in Tom's museum of HP clocks
> 
> http://leapsecond.com/hpclocks/
> 
> I'd like to find a picture of a *genuine* 58503A.
> 
> Dave
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