Re: [time-nuts] FS: Distribution amps

The FS710 has been sold. -Brian, WA1ZMS iPhone > On Sep 27, 2015, at 2:19 PM, "Brian, WA1ZMS" wrote: > > Hi all- > > Time to clean out some extra items. > > I have one SRS FS710. Tested & works. Time-nuts price $150 + shipping to US > address. > I have two HP5087A dist. amps.

Re: [time-nuts] Looking for ECL divide by 3 with symmetry

Thanks guys - good info. Some of these circuits must be the ones I've seen before, and some are new to me, so I'll keep them too (until I lose them again). I'm not sure if I will need symmetry in the output, but it seems better to have it for cleaning up if necessary. The resulting signal

[time-nuts] SRS FS710 spurs at 50Hz and harmonics?

I seem to get very strong spurs at 50Hz and harmonics with an old second-hand SRS FS710: http://www.anderswallin.net/2015/09/srs-fs710-noise-measurement/ feature or bug? Anyone looked at the powersupply and figured out what parts to change? Anders (going crazy measuring all things in sight with

Re: [time-nuts] More HP5065 experiments

On Sun, 27 Sep 2015 07:46:26 + Poul-Henning Kamp wrote: > Discovery of the day: The voltage supplied to the Rb87 lamp changes > the frequency on the order of 1.5e-11 per volt. > > I have no idea why... > > http://phk.freebsd.dk/hacks/HP5065A/index.html My first

Re: [time-nuts] GPS antenna splitters

Hi Mini-Circuits will happily sell you DC injectors with a variety of connectors on them. For a basement lash up, there are satellite TV splitters at your local big box store that have DC inputs. Some of the lightning protection interfaces from people like PolyPhaser have DC bias inputs.

Re: [time-nuts] GPS antenna splitters

I just went through this exercise. You can use DC blocking on all ports and an injector, but they also have splitters where one port is a DC-pass and the rest are DC block. You use the pass port for a device you’re just always going to have hooked up. In my case, it’s the GPS module on a

[time-nuts] GPS antenna splitters

Hi folks, Need a bit of advise: I have a project underway that requires multiple GPS receivers. They all provide 3V power to the antenna.My existing antenna is a generic KS-24019L112A (26dB) that needs 5V. There's about 75' of 1/2 heliax between the receiver location and antenna.

Re: [time-nuts] More HP5065 experiments

In message <56080c0a.20...@gmail.com>, EB4APL writes: >According to your linked info I understand that you don't have >schematics and more info about the 105 OCXO. The info I was referring to is the background typically found in a HP Journal article, which says something about design

Re: [time-nuts] More HP5065 experiments

Hej, On 09/28/2015 04:17 PM, Attila Kinali wrote: On Sun, 27 Sep 2015 07:46:26 + Poul-Henning Kamp wrote: Discovery of the day: The voltage supplied to the Rb87 lamp changes the frequency on the order of 1.5e-11 per volt. I have no idea why...

Re: [time-nuts] LAN/USB to GP-IB/HP-IP Adapters

On 09/11/2015 01:07 AM, Esa Heikkinen wrote: > I have this: > http://prologix.biz/gpib-ethernet-controller.html I tried it, but didn't like for my use. If you use SRQ interrupts to waken your code, this device is unusable if that's your programming paradigm. "poll this full refund, prologix!

[time-nuts] Z3805A firmware?

Hi, I've had my unit off and in the closet for quite some time, then played around with it yesterday. :GPS:INIT:DATE wasn't taking 2015,09,28 and kept returning E-222 "data out of range" and was stuck in 1996. A few power cycles and it got to 2007. A few more power cycles and finally it got it