Kevin, Geoff, Joseph, and anyone else who has this problem
Thanks to Geoff for those measurements.
I had an e-mail response from Garmin which suggested turning off the
position averaging introduced as a new option in 3.50 firmware. Whilst
that may have helped a little, I still saw (at
Bruce,
I had the same idea as you and my friend Frank and I performed the following
experiment to check whether it is possible or not:
Two brick oscillators (I believe to remember in the 8 GHz region) were
locked to the same source (HP8660) in the 100 MHz region which in turn was
locked to my
Rick,
I guess what you are saying applies only to the case where one tries to mix
down to DC ??
73s de Ulrich, DF6JB
-Ursprungliche Nachricht-
Von: time-nuts-boun...@febo.com
[mailto:time-nuts-boun...@febo.com] Im Auftrag von Rick Karlquist
Gesendet: Mittwoch, 5. Januar 2011 01:24
In message 20110104200440.7fad3800...@ip-64-139-1-69.sjc.megapath.net, Hal Mu
rray writes:
I want to get light from a wide angle (30 degrees or so) into a multimode
fiber cable to feed a fast MF466 photodiode for short distance sensing.
It won't work for a whole lot of reasons.
Your chances
Some related measurements on 10GHz at
http://www.qslnet.de/member/on4iy/9912.html
Of course, the objective was not really to measure 10MHz, but rather to
mimic XO PN at 10GHz
using a DDS for the system as a whole (whatever that means).
- the 20logN is followed very well outside the PLL loop,
On Jan 5, 2011, at 1:15 AM, David J Taylor wrote:
[...]
The Garmin rep who wrote to me suggested that Garmin were unaware of the
problem, but would investigate it. Could I urge you all to report this
problem to Garmin, please, so that we have a greater chance of getting a fix
in the next
David, that's a fine idea. Do you have an email address (or other
contact info)
where our reports of this issue have a greater chance of getting to the
firmware
group compared to being forwarded to a write-once, read-never file?
Kevin
Kevin,
I only have a generic e-mail address:
product
david-tay...@blueyonder.co.uk said:
I had an e-mail response from Garmin which suggested turning off the
position averaging introduced as a new option in 3.50 firmware. Whilst
that may have helped a little, I still saw (at 19200 baud) sentences
starting during the PPS signal, i.e. more than
In a message dated 05/01/2011 04:05:38 GMT Standard Time,
li...@lazygranch.com writes:
The orb in the sky made an appearance today, so I figured I'd photograph
the guts of the Starloc II. The HAG-240 is an active antenna a local
surplus shop was selling. Since it worked with the box, I
Are the other photos on line?
A friend who got a starloc ii at the same time says his is different too. (He
doesn't have access to his box at the moment).
--Original Message--
From: gandal...@aol.com
Sender: time-nuts-boun...@febo.com
To: time-nuts@febo.com
ReplyTo: Discussion of
I think you will have a much better chance of getting Garmin to fix
something
if we can come up with a clear description of what is broken and/or a
simple
recipe for a setup that demonstrates the problem.
What do you mean by more than one second delayed? That sounds like
you are
looking at
In a message dated 05/01/2011 10:05:15 GMT Standard Time,
li...@lazygranch.com writes:
Are the other photos on line?
-
I don't know, it's possible but I don't have any links so you'd need to
search for them.
Ebay auctions are often a good source of equipment photos.
Similar
Hal Murray wrote:
It would be really neat if you could run similar experiments on 3.3 and/or
3.5.
I have run some more tests Hal, with V3.5, averaging ON and OFF.
I include V3.2 for comparison.
I measured the time of the START character ($) of the $GPRMC
sentence and the LAST 0x10 (Linefeed)
Local big box food-drug-dpartment chain serving Michigan Ohio. A lot like a
super Walmart.
Bob
From: J. L. Trantham jlt...@att.net
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Tue, January 4, 2011 9:29:46 PM
Subject: Re:
Nice pictures.
I have noticed many GPS recvrs use the same scheme or at least the same
chips.
The ad660 is a fm recvr chip. Essentially you take the downconverted c/a
code out and process it digitally. Older Garmins and anritsu gps recvrs use
this trick that I have seen. Newer versions most
As requested I have add a PCB bottom side picture.
If someone want some more informations or any help please ask me directly.
See:
http://www.timeok.it/files/10_to_100_mhz_multiplier.pdf
I remember you the Maser use a multiplier chain from 5 MHz to 1400Mhz as first
LO in the internal receiver
On Jan 5, 2011, at 4:08 AM, Kiwi Geoff wrote:
I have reverted quite a number of times now Kevin - trying to
understand why the 18x can be 1 second slow. I have never had an issue
putting in an older version into the 18x, the updater software does
know what your doing, it says:
Hi Geoff (of
Ulrich
Strictly for adjusting and comparing two 10 or 5 MHz sources I use the
circuit from the Austron 2110 that takes a 5 MHz input and through mixing
generates 5.0005 MHz subsequently devided down to 1.0001 MHZ. Mixed with the
other input at 1 MHz the resulting difference is 100 Hz which
Hi
My guess is that you could take a pair of the PLL+VCO chips that several
people now make (cheap) and whip up a pretty simple error multiplier
circuit.
The Analog ADF-4360-1 is one example at ~ $3 each. You could use it to take
your 10 MHz up to 2250 with one and 2260 with the other. Mixing
Hi
Other than the normal issues with blown inputs, the 5334 is a pretty rugged
beast. It's not got a whole lot of crazy stuff inside it. It does have some
custom IC's and firmware.
The simple answer is that unless you have a valid right of return, it's
never clear what you wind up with. Even a
Hi
The same three satellites and crazy orbit thing is used by Sirius to
broadcast satellite radio in the US. It's perfectly optimized if you live in
a deep canyon (urban or otherwise) in Nebraska
The figure 8 stuff would seem to be a lot better for moving data to a
defined footprint than for
On 01/05/2011 06:53 PM, Bob Camp wrote:
Hi
The same three satellites and crazy orbit thing is used by Sirius to
broadcast satellite radio in the US. It's perfectly optimized if you live in
a deep canyon (urban or otherwise) in Nebraska
The figure 8 stuff would seem to be a lot better for
I'm not too far different. I have a Timex Easy Reader which has an
MSRP of $40, but I paid $19.95 at Target. Very large dial numerals with
an equally loud and satisfying tick. The Indiglo dial face is great,
too. Loses a few seconds a month so far.
On 12/26/2010 3:25 PM, Robert Darlington wrote:
...and also like the FEI-Zyfer NanoSync.
They were all designed to meet a common spec for sync of cellular base
stations in the US.
Rob K
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of gandal...@aol.com
Sent: 05 January 2011 9:52 AM
The ones to really look out for are the sellers that have starting
prices on 99% of their stuff way above what the normal/average selling
price is, and even have a 7 day return, then they have something like
a 5370B for $50, and it says untested.
The one I liked was last summer. It was a DMM and
Hi
Looks like there should be a page past the 2110-5 pdf file.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of ewkeh...@aol.com
Sent: Wednesday, January 05, 2011 1:47 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Comparing 10
The ad660 is a fm recvr chip.
Google tells me that it's a DAC:
AD660 | Monolithic 16-Bit Serial/Byte DACPORT | All D/A Converters ...
The AD660 DACPORT® is a complete 16-bit monolithic digital-to-analog ...
--
These are my opinions, not necessarily my employer's. I hate spam.
Very helpful
On Wed, Jan 5, 2011 at 11:03 AM, Paramithiotti, Luciano Paolo S
luciano.paramithio...@hp.com wrote:
As requested I have add a PCB bottom side picture.
If someone want some more informations or any help please ask me directly.
See:
Bob Camp wrote:
Hi
Other than the normal issues with blown inputs, the 5334 is a pretty
rugged
beast. It's not got a whole lot of crazy stuff inside it. It does have
some
custom IC's and firmware.
Actually, it has crazy stuff IMHO. The controller is broken up
into three separate
Hi
There's some subtle distinctions I had not realized were there. All I've
ever seen are the B model.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Rick Karlquist
Sent: Wednesday, January 05, 2011 2:37 PM
To: Discussion of
Subject: Looking for Tracor 599 VLF Receiver Manual
I have acquired a Tracor Series 599 VLF Tracking Receiver system that
I'd like to use for WWVB reception.
I'm curious if anyone has, or knows of, a source of manual(s) for this
system. It consists of the following units:
Power Supply 599-502
Bob
it is all there on the left are the inputs and the labels are missing
because of the ring binder. Top does not have transformer because it is the
internal reference. Can be replaced with the circuit below.
Bert Kehren
In a message dated 1/5/2011 1:52:29 P.M. Eastern Standard Time,
Al,
Bert who is on this list is quite an expert. He has helped me.
I have a pair of 599s One working the other so so.
Several comments.
Pretty sure that your 599 will not do loran.
Loran was nothing like what the system worked on steady cw carriers.
Generally it worked on 25 KC and below on the
It's OMEGA not LORAN. Try FairRadio or Google for it. OMEGA was in the
10-25 KHz region. LORAN-C was 100 KHz. WWVB is 60 KHz.
You might be better off starting from scratch.
Best,
-John
===
Subject: Looking for Tracor 599 VLF Receiver Manual
I have acquired a Tracor Series 599
Paul, did you scan the manual?
Bert
In a message dated 1/5/2011 2:58:25 P.M. Eastern Standard Time,
paulsw...@gmail.com writes:
Al,
Bert who is on this list is quite an expert. He has helped me.
I have a pair of 599s One working the other so so.
Several comments.
Pretty sure that your 599
No I did not scan it
On Wed, Jan 5, 2011 at 3:03 PM, ewkeh...@aol.com wrote:
Paul, did you scan the manual?
Bert
In a message dated 1/5/2011 2:58:25 P.M. Eastern Standard Time,
paulsw...@gmail.com writes:
Al,
Bert who is on this list is quite an expert. He has helped me.
I have a pair
The other thing to check is proper dealers. Here in the UK I can buy some kit
from highly reptutable dealers with 30 day warranty and manuals inculded for a
fraction of what some ebay sellers are starting at. For example a 5316B,
obviously ex a recent disposal auction (Lot No. stickers still
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