Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Mike Cook
Certainly cheap…. BUT On the ublox site there is a table indicating that the KT is a standard precision engine. On the same table, the UBX-M8030-KT-FT is required for timing: < https://www.u-blox.com/sites/default/files/GNSS-Chips_Linecard_%28UBX-13004716%29.pdf > < https://www.u-blox.com/sit

Re: [time-nuts] TU60-D120-131 Specs....?

2016-06-15 Thread Bryan _
Yes, that's the seller. I think the firmware version is in one of the NMEA commands. -=Bryan=- > From: hol...@hotmail.com > To: time-nuts@febo.com > Date: Wed, 15 Jun 2016 04:37:13 + > Subject: [time-nuts] TU60-D120-131 Specs? > > Mine came from seller "electronics plus" in Michigan (?

Re: [time-nuts] Improving on basic L1 timing

2016-06-15 Thread Michael Wouters
I should have added, if you do all of the above, the improvement in stability over just using a sawtooth-corrected PPS is not all that spectacular, a factor of two or three. I'll post a plot of some data tomorrow. Cheers Michael. On Wednesday, 15 June 2016, Michael Wouters wrote: > If you foll

Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Attila Kinali
On Wed, 15 Jun 2016 09:44:15 +0200 Mike Cook wrote: > Certainly cheap…. BUT > > On the ublox site there is a table indicating that the KT is a standard > precision engine. On the same table, the UBX-M8030-KT-FT is required for > timing: Oops! Missed that one! Sorry! How about using an UBX-G6

Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Bob Camp
Hi If you feed the chip with your local reference: 1) You need to synthesize a signal at the expected frequency (26 MHz, 48 MHz … whatever) 2) The signal needs to be low phase noise (per the chip set specs) 3) The signal needs to be constrained for ADEV (per the chip set specs) All of that m

Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Attila Kinali
On Wed, 15 Jun 2016 07:03:28 -0400 Bob Camp wrote: > If you feed the chip with your local reference: > > 1) You need to synthesize a signal at the expected frequency (26 MHz, 48 MHz > … whatever) 26MHz is rather benign to generate. Either use TCXO that has already 26MHz (e.g. ASVTX-09 from A

Re: [time-nuts] time-nuts Digest, Vol 143, Issue 25

2016-06-15 Thread Leo Bodnar
Be also aware that there are outright fakes around. This one did not have any silicon inside. It made debugging very difficult. http://leobodnar.com/balloons/files/fake-M8030.jpg Leo On 15 Jun 2016, at 10:00, time-nuts-requ...@febo.com wrote: > Certainly cheap…. BUT > > On the ublox site th

[time-nuts] Anyone have an HP5060A sitting around?

2016-06-15 Thread cdelect
Hi, I need a couple resistance readings at the A11 oven controller jack. Does anyone have one available that they could measure for me? Cheers, Corby ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/

Re: [time-nuts] Anyone have an HP5060A sitting around?

2016-06-15 Thread paul swed
Corby Not sure I can help. I have my frankenstein 5061 in a 5060 with home brew oven controller. I pulled the old controller out. Is it that you need measurements on the controller or with the tube also. If its with a tube I don't believe my measurements would be helpful. Regards Paul On Wed, Jun

Re: [time-nuts] Anyone have an HP5060A sitting around?

2016-06-15 Thread Pete Lancashire
Somewhat available, the 'lab' is without power due to a complete house rewiring project. But if it just something I could do with a Fluke, I could help You can contact me off line ... -pete On Wed, Jun 15, 2016 at 9:48 AM, paul swed wrote: > Corby > Not sure I can help. I have my frankenstein

Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Bob Camp
Hi > On Jun 15, 2016, at 9:22 AM, Attila Kinali wrote: > > On Wed, 15 Jun 2016 07:03:28 -0400 > Bob Camp wrote: > > >> If you feed the chip with your local reference: >> >> 1) You need to synthesize a signal at the expected frequency (26 MHz, 48 MHz >> … whatever) > > 26MHz is rather beni

Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Attila Kinali
On Wed, 15 Jun 2016 18:43:38 -0400 Bob Camp wrote: > > Same as above. > > If you lock the VCXO to an OCXO, this will be much better. > > Each time you steer the OCXO to lock things up, you will degrade both it’s > ADEV and it’s > phase noise. If the GPS drops out when you do this …. the GPSDO

Re: [time-nuts] u-blox "naked" chips - anyone brave enough to try them?

2016-06-15 Thread Bob Camp
Hi > On Jun 15, 2016, at 7:44 PM, Attila Kinali wrote: > > On Wed, 15 Jun 2016 18:43:38 -0400 > Bob Camp wrote: > >>> Same as above. >>> If you lock the VCXO to an OCXO, this will be much better. >> >> Each time you steer the OCXO to lock things up, you will degrade both it’s >> ADEV and it

[time-nuts] TU60-D120-131 Specs....?

2016-06-15 Thread Mark Sims
>From the Zodiac binary message, mine reports 12 channels, software ver 93.07 >from 01/16/04, hardware options 5843 (hex). -- > I think the firmware version is in one of the NMEA commands. > __