[time-nuts] Agilent / HP 117A on eBay...

[J. Forster]

The HP 117A antenna is a circular shielded loop, about 1 meter or 3' in
diameter. I never bothered to measure it. It looks to be made out of
roughly 1" OD aluminum electrical conduit components, a Tee at the top and
a pull box at the bottom. There are three conduit sections, one a diameter
that goes vertically from the bottom pull box to the top Tee. There are a
pair of semicirllas, one on each side.  The two side loop halved are
insulated from the pull box as I remember.

There is a picture in the 117A manual on the Agilent site, but no
dimensions I saw. It is a crummy scan. The loop dimensions may be in a
catalog of the period.

It'd be fairly easy to replicate w/ a hand conduit bender, IMO.

-John

====================



I never bothered


> Hi Pete, I have a 14" diameter choke ring GPS L1 with a big spike on the
> top of it, on the peak of the roof :)
>
> That certainly gets some stares!
>
> As the HP antenna is VLF, is the Antenna Huge?
>
> I can't reliably get WWVB in Australia.
> Lots of fading etcetera, or I'd be in there like a shot :)
>
> We do have a beer called VB hmmm..
>
> --marki
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Pete Lancashire
> Sent: Friday, 26 July 2013 10:50 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Agilent / HP 117A on eBay...
>
> I still would like to find one of the HP antenna's just for the looks.
> Even the 10509A with 13CW4's .. ok the FET version would be better.
>
> At least give those passing by something else to point at :-)
>
> -pete
>
>
>
>
> On Thu, Jul 25, 2013 at 7:09 AM, Burt I. Weiner <biwa at att.net> wrote:
>
>> I always wanted on, but with the intention of using it.  To bad it's
>> now useless now with the new WWVB format, otherwise I'd buy it.
>> Antennas I got.
>>
>> Burt, K6OQK
>>
>> At 06:14 AM 7/25/2013, time-nuts-request at febo.com wrote
>>
>>> >> Would this box work with the new WWVB format?
>>> >>
>>> >>
>>> >> On 07/25/2013 04:07 AM, Mark C. Stephens wrote:
>>> >>
>>> >>> Oh my gosh, a 117A has popped up on eBay!
>>> >>> Looks in pretty good condition given its age...
>>> >>>
>>> >>> Seller claims the antenna will be listed shortly!
>>> >>>
>>> >>> Item # 281141315740
>>> >>>
>>> >>>
>>> >>> --marki
>>>
>>
>> Burt I. Weiner Associates
>> Broadcast Technical Services
>> Glendale, California  U.S.A.
>> biwa at att.net
>> www.biwa.cc
>> K6OQK
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