Rick,
I took a listen the other night and did not hear the beat. Tonight
my wife and I went out for a little sustenance, just to maintain
life, of course. On the way to the restaurant I tuned my car radio
to 940. At first I didn't hear any beat, but then it faded in and
was quite loud. On
Les,
I do sort of remember Cambridge Thermionics. I came across their
name back in the late 60's or early 70's when I first got in the
frequency measurement "business". I think I also remember seeing
their name as a parts supplier in some WW-2 military radio manuals.
Burt
From: "Lester V
> Hi group,
> just got a Prologix LAN interface and tried to get some
> printouts from my Anritsu MS6804A but it didnt works.
> Phase Noise & Spectrum Surveillance prgs works fine
> but 7470.exe allways tells me "communication error 0x02"
> when I request a plot.
> Communication to the Anritsu work
Tbolt Nuts
Something I see on Ed's "SAS" antenna plot that my be of interest to others.
Antenna vew looks pretty good for the most part (besides the Noth blockage)
but there are several small 5 to 10 db nulls in the middle of otherwise
strong signals, especially facing south.
One thing that can
Even if you could, the referenced would be no better than the GPS.
-Original Message-
From: "Burt I. Weiner"
Sender: time-nuts-boun...@febo.com
Date: Fri, 14 Oct 2011 16:16:59
To:
Reply-To: Discussion of precise time and frequency measurement
Subject: [time-nuts] AM Broadcast
Ed
That is a great LH plot, AND Tbolt setup.
Noise is about the same as I'm seeing.
Can also use this setup to see if the Tbolt location is set correctly by
doing a longer plot that includes many satellites changes and see what the
peak noise spikes are.
One little minor thing you missed tha
I don't see any practical way to do that. There are so many
variables and it's such a dynamic problem.
Burt
Subject: Re: [time-nuts] AM Broadcast Stations As Frequency
Would it be possible to use some form of SDR and massive
but clever data processing to derive a standard frequency
referenc
Don't destroy it! It's very useful.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Peter Gottlieb
Sent: Friday, October 14, 2011 3:06 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] HP 58516A
I pi
Hi group,
just got a Prologix LAN interface and tried to get some
printouts from my Anritsu MS6804A but it didnt works.
Phase Noise & Spectrum Surveillance prgs works fine
but 7470.exe allways tells me "communication error 0x02"
when I request a plot.
Communication to the Anritsu works cause it be
Peter will be in the mud tomorrow at hoss traders
Yup the guts would be handy indeed. So would the box.
Paul
WB8TSL
On Fri, Oct 14, 2011 at 4:06 PM, Peter Gottlieb wrote:
> I picked up a HP 58516A GPS L1 Distribution amplifier at NEARfest really
> for the box but it occurred to me it might be so
Oh my, you're absolutely right... I've totally missed out those few lines!
Now I understand. I apologize and go immediately to search for a Tbolt. A
similar design is the ConnorWinfield/NavSync FTS125 but instead of
disciplining an OCXO they use a 20MHz fixed OCXO (without EFC) to drive the
GPS eng
I picked up a HP 58516A GPS L1 Distribution amplifier at NEARfest really for the
box but it occurred to me it might be something useful. It looks unused.
Anyone have any interest before I gut it?
___
time-nuts mailing list -- time-nuts@febo.com
To un
Azelio,
> Oh, yes, you're right. 100pS is the noise. Very interesting in this case:
> how this high resolution is obtained (excluding averaging, the real
> hardware
> resolution)? Analog interpolators? Wave union TDC? Vernier delay lines? I
> haven't found any reference in the internet...
There i
I have not checked these in the last few months, but might be worth a listen.
http://k5cm.com/AM%20BR0ADCAST%20STATIONS.htm
73
Connie, K5CM
Connie's iPhone
On Oct 14, 2011, at 7:22 AM, paul swed wrote:
> Thank you now I have some closer targets to look at.
>
> On Thu, Oct 13, 2011 at 11:51 P
Boy Tom it would be interesting but I think I hear the $$ ringing up. SDR=
$$
Humor aside.
Yesterday was a great example of why wwvb does not fair well in the eastern
US.
>From about 10am-8pm the signal was right at the noise floor. I thought I
lost my pre-amp. Then went to the wwvb site and the mo
It could be 10 watts or as I suggest 100 or more. Depends on the range you
want to cover and what you can afford. Thats why the AM broadcast stations
are attractive, the infrastructure and power consumptions being taken care
of in the normal course of the business. Granted the CS ref and its power
Tom
Thanks for the Tbolt vs. H-maser data log,
That's great data showing how good GPS can be out to 200,000 sec with SA
off.
Your data showing a little under 5e-14 at 1 day, makes a very good reference
point to remember.
Any guess when your plot would flattens out or turn around?
It is also
On 13/10/11 02:42, Dan Mills wrote:
On Thu, 2011-10-13 at 02:11 +0200, Magnus Danielson wrote:
I have wondered if not amateurs could set up small frequency broadcasts
of their own. Say a 10 W transmitter or something.
It's called a beacon and at least the UK license does allow them (25W
maxim
Would it be possible to use some form of SDR and massive
but clever data processing to derive a standard frequency
reference from *all* the AM stations simultaneously? With
post-processing you could identify each station's weighted
contribution to the ensemble, for better or worse, as well
as plot
The three I mentioned: KFWB 980, KNX 1070, and KDIS 1110 are usually
well within 1 mHz when operating on their GPS referenced
exciters. Do not be fooled by thinking that just because a station
is operating in the IBOC digital mode that they will be GPS
referenced. As I mentioned before, not a
Thank you now I have some closer targets to look at.
On Thu, Oct 13, 2011 at 11:51 PM, Charles P. Steinmetz <
charles_steinm...@lavabit.com> wrote:
> Paul wrote:
>
> Curious if anyone knows of central or eastern US stations that would be
>> gps locked.
>>
>
> I believe the following are:
>
> 710
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