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-boun...@febo.com [mailto:time-nuts-boun...@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 <b...@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-requ...@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. >> b...@att.net >> www.biwa.cc >> K6OQK >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to >> https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listin >> fo/time-nuts> >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.