Greetings to all of the time-nuts on this list. I too have an interest (obsession?) with precision frequency measurement. I have known, visited and had dinner with Perry Sandeen (also a list member) while he lived in Tennessee where we shared a common interest in the beloved R-390A receiver and test equipment. Perry and I would make our pilgrimages to the Huntsville Ham Fest and usually I ended up buying equipment from him. One of the items he sent my way was an HP 3586B that I am finally beginning to put to use. I am trying to find out how to fix the tuning control on the HP3586B and that led me back to this list. If anyone has suggestions on making repairs I would appreciate the info; I am very capable of troubleshooting and making component level repairs, even if I have to take the tuning control apart to fix the optical chopper light source. *Ms. Tisha Hayes, AA4HA* *(Senior Engineer with 4RF USA)* *Gadsden, Alabama*

On Wed, Mar 28, 2018 at 9:49 PM, Tisha Hayes <tisha.hayes@gmail.com> wrote: > Perry and I would make our pilgrimages to the Huntsville Ham Fest and > usually I ended up buying equipment from him. One of the items he sent my > way was an HP 3586B that I am finally beginning to put to use. > Hmm that measuring receiver model (diffs can be found in: http://www.militaryradio.com/manuals/HP/hp3586-a-b-c.pdf ) was apparently intended for testing and troubleshooting purposes for those ancient FDM-based POTS trunk systems, not as a general-purpose HF measuring receiver (the HP 3586C)---I'm not sure how well they would function as HF receivers for WWV and CHU following impedance adaptation (b/c it doesn't have a 50 ohm unbalanced interface). In my case, I supply my time transfer volunteers with the following setup: vertical antenna -> TVSS -> preamplifier -> military rackmount preselector -> military/intelligence rackmount parametric demodulator or HP 3586C -> Xeon NTP server via soundcard with GNU/Linux daemon software which commands the preselector and demodulator via GPIB. Still, WWV/CHU-derived public NTP nodes are virtually nonexistent, and therefore there's a strong need for them, regardless of the sophistication of the receiver, due to the pitfalls of GNSS. -Ruslan -- Ruslan Nabioullin Wittgenstein Laboratories rnabioullin@gmail.com (508) 523-8535 50 Louise Dr. Hollis, NH 03049

Hi Tisha, Welcome to our group. We are fortunate to have another technicians technician in our gaggle. I have replaced the bulb in two of n 3586b units and it was not difficult. I may have an extra bulb I can send you and somewhere on this list I think there was an article on replacing same. The 3586 is quite a versatile unit, along with being a musical instrument. Turn up the volume, then Push "recall" "decimal point" "center freq' "8" and then wait a few seconds. 73, Bill, WA2DVU Cape May, NJ -----Original Message----- From: time-nuts <time-nuts-bounces@febo.com> On Behalf Of Tisha Hayes Sent: Wednesday, March 28, 2018 9:50 PM To: time-nuts@febo.com Subject: [time-nuts] Introduction, new list member, Ms Tisha Hayes, AA4HA Greetings to all of the time-nuts on this list. I too have an interest (obsession?) with precision frequency measurement. I have known, visited and had dinner with Perry Sandeen (also a list member) while he lived in Tennessee where we shared a common interest in the beloved R-390A receiver and test equipment. Perry and I would make our pilgrimages to the Huntsville Ham Fest and usually I ended up buying equipment from him. One of the items he sent my way was an HP 3586B that I am finally beginning to put to use. I am trying to find out how to fix the tuning control on the HP3586B and that led me back to this list. If anyone has suggestions on making repairs I would appreciate the info; I am very capable of troubleshooting and making component level repairs, even if I have to take the tuning control apart to fix the optical chopper light source. *Ms. Tisha Hayes, AA4HA* *(Senior Engineer with 4RF USA)* *Gadsden, Alabama* _______________________________________________ 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.

The impedance mismatch with the A or B models is't a real issue unless you're doing precise amplitude measurements.  Lots of folks use them for FMT work without issues. There are adapters available or buildable to deal with the odd Telco connectors. John On Mar 29, 2018, 3:04 AM, at 3:04 AM, Ruslan Nabioullin <rnabioullin@gmail.com> wrote: >On Wed, Mar 28, 2018 at 9:49 PM, Tisha Hayes <tisha.hayes@gmail.com> >wrote: > >> Perry and I would make our pilgrimages to the Huntsville Ham Fest and >> usually I ended up buying equipment from him. One of the items he >sent my >> way was an HP 3586B that I am finally beginning to put to use. >> > >Hmm that measuring receiver model (diffs can be found in: >http://www.militaryradio.com/manuals/HP/hp3586-a-b-c.pdf ) was >apparently >intended for testing and troubleshooting purposes for those ancient >FDM-based POTS trunk systems, not as a general-purpose HF measuring >receiver (the HP 3586C)---I'm not sure how well they would function as >HF >receivers for WWV and CHU following impedance adaptation (b/c it >doesn't >have a 50 ohm unbalanced interface). > >In my case, I supply my time transfer volunteers with the following >setup: > >vertical antenna -> TVSS -> preamplifier -> military rackmount >preselector >-> military/intelligence rackmount parametric demodulator or HP 3586C >-> >Xeon NTP server via soundcard > >with GNU/Linux daemon software which commands the preselector and >demodulator via GPIB. > >Still, WWV/CHU-derived public NTP nodes are virtually nonexistent, and >therefore there's a strong need for them, regardless of the >sophistication >of the receiver, due to the pitfalls of GNSS. > >-Ruslan > >-- >Ruslan Nabioullin >Wittgenstein Laboratories >rnabioullin@gmail.com >(508) 523-8535 >50 Louise Dr. >Hollis, NH 03049 >_______________________________________________ >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.

Yep, 3586B put me in the top list two times I used it along with a calibrated SpectrumLab + PC combo. I’d like to use my IC-7610 this time, have to figure all that out I guess as the April test rapidly approaches UTC time I remember now. Regards, Jerry > On Mar 29, 2018, at 5:21 AM, John Ackermann N8UR <jra@febo.com> wrote: > > The impedance mismatch with the A or B models is't a real issue unless you're doing precise amplitude measurements. Lots of folks use them for FMT work without issues. There are adapters available or buildable to deal with the odd Telco connectors. > > John > > On Mar 29, 2018, 3:04 AM, at 3:04 AM, Ruslan Nabioullin <rnabioullin@gmail.com> wrote: >> On Wed, Mar 28, 2018 at 9:49 PM, Tisha Hayes <tisha.hayes@gmail.com> >> wrote: >> >>> Perry and I would make our pilgrimages to the Huntsville Ham Fest and >>> usually I ended up buying equipment from him. One of the items he >> sent my >>> way was an HP 3586B that I am finally beginning to put to use. >>> >> >> Hmm that measuring receiver model (diffs can be found in: >> http://www.militaryradio.com/manuals/HP/hp3586-a-b-c.pdf ) was >> apparently >> intended for testing and troubleshooting purposes for those ancient >> FDM-based POTS trunk systems, not as a general-purpose HF measuring >> receiver (the HP 3586C)---I'm not sure how well they would function as >> HF >> receivers for WWV and CHU following impedance adaptation (b/c it >> doesn't >> have a 50 ohm unbalanced interface). >> >> In my case, I supply my time transfer volunteers with the following >> setup: >> >> vertical antenna -> TVSS -> preamplifier -> military rackmount >> preselector >> -> military/intelligence rackmount parametric demodulator or HP 3586C >> -> >> Xeon NTP server via soundcard >> >> with GNU/Linux daemon software which commands the preselector and >> demodulator via GPIB. >> >> Still, WWV/CHU-derived public NTP nodes are virtually nonexistent, and >> therefore there's a strong need for them, regardless of the >> sophistication >> of the receiver, due to the pitfalls of GNSS. >> >> -Ruslan >> >> -- >> Ruslan Nabioullin >> Wittgenstein Laboratories >> rnabioullin@gmail.com >> (508) 523-8535 >> 50 Louise Dr. >> Hollis, NH 03049 >> _______________________________________________ >> 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.

Tisha Welcome to the group. The 3586s are very nice I have more then a few. That said get the nicad battery out of the system ASAP. The charging circuit is very poor and overcharges them. (Pretty odd for HP) When they leak they destroy the power supply regulator board. It is a mess to clean up and the to repair traces. The stuff eats through the board and causes all sorts of very bad behaviors because the of trace to trace to leaks. Regards Paul. WB8TSL On Thu, Mar 29, 2018 at 11:26 AM, Jerry Hancock <jerry@hanler.com> wrote: > Yep, 3586B put me in the top list two times I used it along with a > calibrated SpectrumLab + PC combo. I’d like to use my IC-7610 this time, > have to figure all that out I guess as the April test rapidly approaches > UTC time I remember now. > > > Regards, > > Jerry > > > > On Mar 29, 2018, at 5:21 AM, John Ackermann N8UR <jra@febo.com> wrote: > > > > The impedance mismatch with the A or B models is't a real issue unless > you're doing precise amplitude measurements. Lots of folks use them for > FMT work without issues. There are adapters available or buildable to deal > with the odd Telco connectors. > > > > John > > > > On Mar 29, 2018, 3:04 AM, at 3:04 AM, Ruslan Nabioullin < > rnabioullin@gmail.com> wrote: > >> On Wed, Mar 28, 2018 at 9:49 PM, Tisha Hayes <tisha.hayes@gmail.com> > >> wrote: > >> > >>> Perry and I would make our pilgrimages to the Huntsville Ham Fest and > >>> usually I ended up buying equipment from him. One of the items he > >> sent my > >>> way was an HP 3586B that I am finally beginning to put to use. > >>> > >> > >> Hmm that measuring receiver model (diffs can be found in: > >> http://www.militaryradio.com/manuals/HP/hp3586-a-b-c.pdf ) was > >> apparently > >> intended for testing and troubleshooting purposes for those ancient > >> FDM-based POTS trunk systems, not as a general-purpose HF measuring > >> receiver (the HP 3586C)---I'm not sure how well they would function as > >> HF > >> receivers for WWV and CHU following impedance adaptation (b/c it > >> doesn't > >> have a 50 ohm unbalanced interface). > >> > >> In my case, I supply my time transfer volunteers with the following > >> setup: > >> > >> vertical antenna -> TVSS -> preamplifier -> military rackmount > >> preselector > >> -> military/intelligence rackmount parametric demodulator or HP 3586C > >> -> > >> Xeon NTP server via soundcard > >> > >> with GNU/Linux daemon software which commands the preselector and > >> demodulator via GPIB. > >> > >> Still, WWV/CHU-derived public NTP nodes are virtually nonexistent, and > >> therefore there's a strong need for them, regardless of the > >> sophistication > >> of the receiver, due to the pitfalls of GNSS. > >> > >> -Ruslan > >> > >> -- > >> Ruslan Nabioullin > >> Wittgenstein Laboratories > >> rnabioullin@gmail.com > >> (508) 523-8535 > >> 50 Louise Dr. > >> Hollis, NH 03049 > >> _______________________________________________ > >> 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. >