Re: [time-nuts] HP53132A Firmware Version 4613

Hopefully that will be tomorrow. Didier KO4BB On December 27, 2016 2:37:23 PM CST, GandalfG8--- via time-nuts wrote: >I have just uploaded this firmware to Didier's (KO4BB) manuals site so >it >should be available for download in the near future. > >Regards > >Nigel

[time-nuts] HP counter basic oscillators

On 12/27/2016 11:48 AM, GandalfG8--- via time-nuts wrote: All the 5313x counter basic oscillators are indeed extraordinarily poor, and I've always assumed that their only purpose was to demonstrate that the unit was basically functional. I don't know exactly what is in the 5313X counters,

Re: [time-nuts] HP Z3801 RB fun

Hi The loop gain (as Magnus mentions) needs to be “correct” for the Rb. Since the firmware was written for an OCXO with a PPM(ish) trim range, tacking it on to a PPB(ish) Rb will require everything to scale by 1000:1. That’s 10 bits. You may (or may not) have enough resolution in the math to

Re: [time-nuts] HP Z3801 RB fun

Paul, Have you matched up the Rb EFC sensitivity to that of the 10811. If not, you have most probably grossly changed the loop gain, and I can't recall that the Z3801A was designed to have different loop-gains. Just a thought. Cheers, Magnus On 12/28/2016 02:33 AM, paul swed wrote: OK so

[time-nuts] HP Z3801 RB fun

OK so could not resist. The replacement of the HP 10811 with a PIEZO ocxo went very well. So in for a penny in for a pound. Why not an RB. Having a few around. Choice efratom FRS-c. Lot of thought went into this choice. Not really it was there. It has a inverse frequency to EFC voltage just like

Re: [time-nuts] Syntesizer Book Update

Happy holidays to all. If you have some time and are interested I am still looking for specialized help to give my book http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471520195.html a new life as I drifted in to Meta Material Based Structure based Signals Sources. The key missing

Re: [time-nuts] HP53132A Firmware Version 4613

How similar are the 131A and the 132A ? Is it possible to upgrade a 131 into 132 ? On Tue, Dec 27, 2016 at 8:37 PM, GandalfG8--- via time-nuts < time-nuts@febo.com> wrote: > I have just uploaded this firmware to Didier's (KO4BB) manuals site so it > should be available for download in the

[time-nuts] HP53132A Firmware Version 4613

I have just uploaded this firmware to Didier's (KO4BB) manuals site so it should be available for download in the near future. Regards Nigel GM8PZR ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] HP 53132A ROM issue

Hi Nigel - could you post the files on KO4BB's manuals site? There is a version 3944 already there. Go to: http://www.ko4bb.com/getsimple/index.php?id=manuals Click on "upload instructions" and/or search for 53132. Regards, John K1AE -Original Message- From: time-nuts

Re: [time-nuts] HP 53132A ROM issue

Hi Colin, All the 5313x counter basic oscillators are indeed extraordinarily poor, and I've always assumed that their only purpose was to demonstrate that the unit was basically functional. A couple of years ago I upgraded a 53132A with serial prefix 3546 from firmware version 3403 to

Re: [time-nuts] New stuff in my Tindie store

This is a reminder to keep postings to time-nuts on topic. An occasional marketing post is ok, but replies unrelated to precise time & frequency are not. If you have product questions for OP please handle them off-list with private email to Nick Sayer. Thanks, /tvb

Re: [time-nuts] New stuff in my Tindie store

According to the builder, it was selling well (he was on version 5 of the board). He said he just decided (no feedback) that no one would use the dial more than once, so he removed it. For money talks, I would have thought having a capability to use any numeric offset, so it could be used by,

Re: [time-nuts] New stuff in my Tindie store

It's assumptions on how a product will be used that end up ruining so many potential products for me. Like the GPS modules with a PPS pin and people build breakout boards for them that either don't use the PPS or use the PPS for flashing an LED, but there's no pin nor contact point for

[time-nuts] HP 53132A ROM issue

I recently acquired an older HP 53132A frequency counter offeBay.  It did not come equipped with  an option oscillator. The standaloneperformance of the existing oscillator is extraordinarily poor although thecounter works well running off my house standard. I decided to update theversion 3703

Re: [time-nuts] New stuff in my Tindie store

> On Dec 26, 2016, at 9:22 PM, Mark Sims wrote: > > Ahhh, the subtle wonders of time zones and DST changes... Heather lets you > set your time zone offset down to the second, and does not range limit the > offset. If you want UTC +987:65:43 it's yours! There are a

Re: [time-nuts] New stuff in my Tindie store

Most of the citizens of the state of Arizona are smart enough to know that you can't actually save any daylight with daylight savings time. Hence, we remain on Mountain Standard Time. The Navajo Indian Nation, whose territory spans parts of three states, including northeast AZ, decided to