Re: [time-nuts] How do I compare GPS antennas?

2017-09-05 Thread Mike Cook
> Le 6 sept. 2017 à 04:23, Hal Murray a écrit : > > Was > Subject: Re: [time-nuts] GPS Antenna Feed Line Decision > > kb...@n1k.org said: >> There is pretty much no experiment you could run that would show a >> difference between the two. With a normal GPS, the

[time-nuts] How do I compare GPS antennas?

2017-09-05 Thread Hal Murray
Was Subject: Re: [time-nuts] GPS Antenna Feed Line Decision kb...@n1k.org said: > There is pretty much no experiment you could run that would show a > difference between the two. With a normal GPS, the “front end” of the > radio > is in the antenna. The filtering and RF amplification

Re: [time-nuts] GPS Antenna Feed Line Decision

2017-09-05 Thread Bob kb8tq
Hi > On Sep 5, 2017, at 5:19 PM, Charles Steinmetz wrote: > > Mike wrote: > >> I tried to see if there was any difference in the signal quality reported by >> Motorola UT+ and U-Blox Neo 6M (not timing grade but has a good 1PPS) over >> 30m of 2 different cable types.

Re: [time-nuts] GPS Antenna Feed Line Decision

2017-09-05 Thread Charles Steinmetz
Mike wrote: I tried to see if there was any difference in the signal quality reported by Motorola UT+ and U-Blox Neo 6M (not timing grade but has a good 1PPS) over 30m of 2 different cable types. I only had RG58(75 Ohm) and RG174(50 Ohm). RG58 is 50 ohm. RG59 is the "equivalent" 75-ohm

Re: [time-nuts] GPS Antenna Feed Line Decision

2017-09-05 Thread Mike Cook
> Le 5 sept. 2017 à 16:17, Bob kb8tq a écrit : > > Hi > > > >> On Sep 5, 2017, at 6:06 AM, Hal Murray wrote: >> >> >> Clay Autery said: >>> I will use something better than RG-59 or RG-6 (even if it is only "better" >>> in my

Re: [time-nuts] GPS Antenna Feed Line Decision

2017-09-05 Thread Bob kb8tq
Hi > On Sep 5, 2017, at 6:06 AM, Hal Murray wrote: > > > Clay Autery said: >> I will use something better than RG-59 or RG-6 (even if it is only "better" >> in my opinion). > > Crazy thought department. Can you also run a parallel run of RG-6

Re: [time-nuts] Book review: "How We Got To Now."

2017-09-05 Thread Bob kb8tq
Hi > On Sep 4, 2017, at 10:32 PM, Nick Sayer via time-nuts > wrote: > > I happened to be at Powell's bookstore in Portland the day after the eclipse > and came across this book and wound up buying it. It's attraction to me was > the same that I felt growing up watching

Re: [time-nuts] Book review: "How We Got To Now."

2017-09-05 Thread Jeremy Nichols
Ordered a copy, thanks Nick. Jeremy On Mon, Sep 4, 2017 at 8:50 PM Mike Naruta AA8K wrote: > > He also did a six part documentary on PBS in 2014. > > Great thinking. > > > On 09/04/2017 10:32 PM, Nick Sayer via time-nuts wrote: > > I happened to be at Powell's bookstore in

[time-nuts] E-Loran

2017-09-05 Thread REEVES Paul
Looks like the S. Koreans are pressing ahead with their e-Loran system. http://insidegnss.com/node/5598 'Old' tech never dies Paul G8GJA ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] GPS Antenna Feed Line Decision

2017-09-05 Thread Hal Murray
Clay Autery said: > I will use something better than RG-59 or RG-6 (even if it is only "better" > in my opinion). Crazy thought department. Can you also run a parallel run of RG-6 and run some tests to see if you can measure the difference? -- These are my opinions. I

[time-nuts] HP5372A CRT issue

2017-09-05 Thread Magnus Danielson
Fellow time-nuts, I have issues with a HP5372A CRT unit, which semi-died. While I think I have located the bad cap and some diodes looks like they might have been cooked, it would sure feel nice to locate a schematic/service manual for the CRT display unit. The main PCB is marked TATUNG