Does anyone have any data on the above Oscillator Module? Likely Phase
Noise? 100 MHz. I suspect not ovened but it has an SMA output and
looks as though it ought to be of good quality. I am contemplating
using it to multiply up to 400 or 500 MHz for a DDS reference in my
transceiver
Raj wrote:
I was thinking of feeding two 10 Mhz signals to two ports of a SBL-1 or similar
and taking the DC
output at the IF port into an opamp or analog meter. This was visually easier
to adjust the drift between two frequencies by just watching the needle move. A
stationary needle over a
Does anyone have any information on the above Cesium Clock unit? I have
had one sitting in my garage for a couple of years looking rather
forlorn, since it is missing the A12 module.This looks to be part of
one or more of the main power supplies, from what I have been able to
work out
Dan Durgin wrote:
I recently bought a 113AR frequency divider clock.
It is missing two TO-3 type transistors on one side of the cabinet.
I think they were 2n458 units.
Can someone tell me if I'm correct so I can order them and get it going.
Daniel Durgin
Ocean View, Hawaii
KA1AFJ
Daniel,
On 7/13/2011 8:28 AM, Poul-Henning Kamp wrote:
PS: http://www.bunkerofdoom.com/lit/mitser/
Thank you for that link Poul-Henning, I had not turned that up in my
searches. It's nice to have it available, even if some of the pictures
have gone all black and can't be read. But the price is
One crystal expert, who's name escapes me, sorry, told me that if you
power up an oscillator that has been off for an extended period, you
should expect a very rapid ageing process to occur with a lot of the
accumulated changes that would have happened had it been powered on then
to occur when
On 8/24/2011 8:03 AM, gandal...@aol.com wrote:
I suspect the comments I've seen claiming most do not have the EFC option
is more a case that in many installations it isn't used, which isn't quite
the same thing.
Absolutely Nigel. If the thing is to be used on it's own with the top
multi
On 8/25/2011 9:01 AM, Bob Camp wrote:
Hi
Do we know for sure that Racal actually made these OCXO's in house?
My *guess* is that they were made by various companies over the years and
sold to Racal. The return for service would have been a return to Racal
and then they forward it to the people
On 8/25/2011 9:23 AM, Robert Atkinson wrote:
I'm pretty sure Racal made these. They are of consistent design over different
models and many years and are unlike any other manufacturers OXCO I've seen.
Racal were old school and did prettymuch everything themselves.
I agree Robert. I have maybe
After an 8 hour power outage yesterday things are getting back up, but,
I'm sure unrelated; I find PRN 08 visible but no useable signal from it
according to LH.
Is this me or the bird?
Dan
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On 10/6/2011 8:46 AM, Chuck Forsberg WA7KGX N2469R wrote:
I would like to get a counter that
a) has 10 MHz clock input
b) counts directly to 30 MHz (50 or 145 preferred)
I would like it to be maintainable and well under $100
including shipping.
I have seen Fluke 1953a counters
On 10/21/2011 2:47 AM, Achim Vollhardt wrote:
I had a 24V, 1.5A polyfuse at hand which was soldered in parallel to
the existing fuse. 1.5A seems a bit large,
Achim, you have replaced a thermal fuse with a current fuse. You could
have just used a piece of plain wire. Indeed in past
While looking for something else I stumbled on an eBay seller in Hong
Kong offering five 113°C thermal fuses for $6 including shipping, which
seems like a reasonable deal...
Item number:130579771801
Usual disclaimers apply, and before anyone complains, yes, it's a
generic photo.
Dan
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]On
Behalf Of Dan Rae
Sent: Wednesday, November 02, 2011 4:30 PM
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] 10811 thermal fuses
While looking for something else I stumbled on an eBay seller in Hong
Kong
Are there any plans to do a new issue of this, does anyone know? I know
the MAX477 is obsolete, but the AD8055 seems to be a pin for pin
replacement, and is even in DIP8.
Even a bare PC board would keep me happy!
Dan
ac6ao
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On 11/16/2011 8:47 AM, Chuck Forsberg WA7KGX N2469R wrote:
I don't know exactly which
timebase my 1992 has, but I did notice the 5 to 10 MHz doubler
on the back of the oscillator, The back has separate coarse
and fine frequency adjustments. Can someone identify which
timebase is fitted to
On 11/16/2011 11:56 AM, Robert Atkinson wrote:
These counters used Racal's own 94xx series OCXO's. The 04A normally had a 9442, the 04E
had the 9420. Easy way to tell which is which is the size. They are both 51mm (2)
square with the 9442 being 51mm tall and the 9420 is 96mm (3.75) tall. The
On 12/12/2011 5:54 PM, Chris Albertson wrote:
What is the best practice for filtering a 10Mhz sine wave frequency
standard? I've read that you can do more harm than good. Filter
parts (caps, resistors and so on) are all temperature sensitive. But
all those $40 Rb oscillators are putting out a
On 12/13/2011 2:44 PM, Charles P. Steinmetz wrote:
I think it's been asked, and recently, but I haven't seen a positive
response. Does anybody have schematics for the Racal OCXOs they can
make available?
Charles, I have a hand drawn circuit diagram of the 9442 rapid warm up
oven which I
On 12/16/2011 2:31 PM, gandal...@aol.com wrote:
Hi David
It's part of the resolution settings, whereby you alter the number of
displayed digits using the up down arrows, holding the up arrow for over two
seconds will shift the display left and increase the gate time so you
effectively get a 10
On 12/19/2011 5:34 AM, Chuck Harris wrote:
It is not clear to me that a 32KHz xtal is any less stable
than a 262KHz xtal, though. I would think there would be a lot
more to be gained by using a microprocessor/thermistor to
measure the temperature within the watch, and provide an
adjustment to
Does anyone have any data on the Vectron OCO500-18 OCXOs that were being
bundled with the Rb units on eBay? Operating voltage for example? I
was hoping to use one to triple and drive a DDS where the odd frequency
will not matter.
Dan
___
Thanks for all the responses. A quick check before breakfast shows that
mine would seem to be for 5 Volts since the power consumption at that
input agrees with the data sheet referenced; the current peaks at 0.95 A
warming up and 0.13 A warm. Reference V out is 4.8 V.
Dan
On 12/23/2011 11:26 AM, saidj...@aol.com wrote:
Running it at 5V with a Ref out at 4.8V would seem too close. Maybe it's a
12V part?
I'm pretty sure it is a 5 Volt part Said, the power drawn in both states
matches the data sheet well. Warm up is quick and correct for the size
etc., at 5 V so
On 12/23/2011 12:42 PM, d.sei...@comcast.net wrote:
Depending on how old these OCXOs are, I may have an original datasheet for
them. Most of my collection is early to mid 90's.
Dave, obviously it would be great if you did have one, but from the data
sheets, Vectron assigned an arbitrary
On 1/7/2012 12:23 PM, John Ackermann N8UR wrote:
I've heard from someone who was going to try to substitute an Analog
Devices chip that was supposedly drop-in compatible, but haven't had
an update on whether that worked.
Yes it does John. I thought I'd already said the AD8055A is a drop
GPS time v. UTC ?
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On 1/20/2012 6:45 AM, cfo wrote:
Hi Nuts
I just bought a Racal-Dana 1991 (german eb..) , with options
01 : Inputs in back
4C : Unknown ? , but maybe some OCXO (i hope)
55 : GPIB
Does anyone know what option 4C could be ?
I hope some super nice OCXO option from USAF , they have bases in .DE
On 1/30/2012 9:24 AM, cfo wrote:
I have been looking for a Racal 9462 ocxo , for my Racal-Dana 1991
counter. I will prob. use my Tbolt anyway , and save the money.
But i'm confused ... Is it a 5 Mhz or a 10 Mhz unit.
It is a 5MHz oven but has a doubler board fitted to it, when fitted to
the
This topic, like so many others, comes up every so often.
Jameco used to sell switches which could be used to replace the
originals, but stopped. Then a few years later someone else imported a
whole bunch, presumably from China, and was selling them by the hundred
bag on eBay. I am
On 11/15/2010 7:44 AM, John Ackermann N8UR wrote:
I'd like to find a couple of 5.0 and/or 10.0 MHz crystal filters,
preferably configured for use in-line with 50 ohm coax.
I've done some googling but don't find anyone selling these as a stock
item. Do they exist? Any pointers would be
On 2/22/2011 7:42 AM, J.D. Bakker wrote:
At 06:23 -0800 22-02-2011, Dan Rae wrote:
Be aware that there are some odd errors in this manual that I pointed
out when I was working on mine a while ago, but it may have been on
the -hp- list...
That would be in
http://tech.groups.yahoo.com/group
further. It referred to manual: 05370-90031. Perhaps a person of
greater technical ability than I could confirm?
http://tech.groups.yahoo.com/group/hp_agilent_equipment/message/17686
Thank you for the excellent work!
Dan
ac6ao
Date: Tue, 22 Feb 2011 08:46:42 -0800
From: Dan Rae dan
Does anyone know if there is a planned or upcoming replacement for the
Tapr TADD-1?
Thanks,
Dan
ac6ao
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I have just got one of these in from Hong Kong. FEI Part number:
217400-30352-1. It is mounted on a cut piece of PC board. The seller
and three other sellers have different versions of the connections of
these, some, the majority, say that +5v goes to pin 3 but the seller of
mine says pin
On 3/14/2011 7:27 PM, Murray Greenman wrote:
Dan,
Yes, you are right. There are so many variants of the FE-56xx devices
that I'm sure even FEI don't have a clue which is which!
Thanks Murray and Rex. I'll drill out all the rivets and open it up
tomorrow and have a look inside to try and figure
On 3/14/2011 5:09 PM, Dan Rae wrote:
I have just got one of these in from Hong Kong. FEI Part number:
217400-30352-1. It is mounted on a cut piece of PC board. The
seller and three other sellers have different versions of the
connections of these, some, the majority, say that +5v goes
And Pin 6 has 1 pps
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Bringing it back on topic, I use one of these oriental probes
(switchable x1 or x10) all the time on my bench counter which has a 1
Meg Ohm input as well as 50 Ohm.
And don't mention it on the Tek scopes list :^) but the Chinese hook
tips fit a lot of tek probes...
Dan
ac6ao
Does anyone know of a source for this one? It is a sort of functional
clone of the -hp- 5087; mine is modified for 1 in and 9 10 MHz outputs.
I have tried all the usual suspects...
Dan
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I have a nice Fluke 203A , modified from one 5 MHz in and 12 out to one
10 MHz in and 12 outputs for sale.
This is a 2U rack unit similar in function to the -hp- 5087A with
metering etc., with a printed copy of the pdf manual.
Please contact me direct if interested with any offers before
On 4/12/2011 4:27 PM, Dave M wrote:
From: Dan Rae dan...@verizon.net
I have a nice Fluke 203A , modified from one 5 MHz in and 12 out to
one 10 MHz in and 12 outputs for sale.
This is a 2U rack unit similar in function to the -hp- 5087A with
metering etc., with a printed copy of the pdf manual
On 4/13/2011 1:11 PM, Dave M wrote:
--
Many thanks for the data, Dan. I am assuming that the mods were done
on the 5MHz boards? Would seem logical...
Thanks again for the info!!
Dave, that's all I had. It was originally 5Mhz in and 12 x 5 out.
dr
On 4/13/2011 5:19 PM, Chris Albertson wrote:
fluke.l's design is not reliable. I don't think he is getting the
voltages right in the serial interface. It works I guess but with
small margin for error
That may be so Chris, but Didier's original design is fine. I have had
two of them running
On 4/20/2011 3:02 PM, Murray Greenman wrote:
Joe,
If all you need is a fixed 10MHz source, you might be better getting an
Efratom LPRO-101, which are available from the same sources. The
LPRO-101 doesn't need a heatsink,
Not so Murray, it really does need one, similar to the FEI.
and does not
Does anyone have any details of this GPS antenna? I found one at
today's swap meet and wondered...
Dan
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On 5/10/2011 11:21 PM, Robert Atkinson wrote:
Hi Bob,
Apart from video distribution amplifiers (possibly modified, don't ignore VGA
ones, they have 3 analog channels -replace the 15 Hi-D with BNC's) There is the
TAPR TADD-1
http://www.tapr.org/kits_tadd-1.html
Ordering Information
On 5/26/2011 7:45 AM, ewkeh...@aol.com wrote:
I am considering using the ZAPD-3DB for GPS distribution. Any information
available before I do something stupid?
Thanks Bert Kehren
It's hard to say Bert, since MCL do not list anything under that
number. I have used one of the ZAPD series
I found today at the swap meet some nice looking Wenzel OCXOs. Pictures
can be found at item 180511097522 on eBay, although his description is
incorrect, they certainly are not Voltage controlled, and do they have
any means of adjusting the frequency.
They have a strong similarity in
John Ackermann N8UR wrote:
Subject line says it all... I'm looking for the DC input power connector
used on the HP 5065A Rb and 5061A Cs standards. Finding the
manufacturer/part number would be great; a source would even be better
(a source giving them away for free would be best, but I won't
[EMAIL PROTECTED] wrote:
He said that the USPS tracking numbers often don't work...
USPS tracking numbers *never* work while the item is in transit. If it
gets lost though they are of some use...
Good luck,
dr
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[EMAIL PROTECTED] wrote:
Hi All
Am I right in thinking this is another EbayUK repeat of the dodgy 5071A
auction that was listed a week or so ago?
Nigel, probably yes. Some of the characters go on for weeks or months
with the same phony ads but with new or newly hi-jacked seller
Didier Juges wrote:
Is it possible to build a Loran antenna?
Yes.
For my Austron 2100 I built an active ferrite rod antenna which works
very well. Much better than an active rod since by using the magnetic
field component, it rejects a lot of the local interference (tv
timebases and
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED] RETRY
Does anyone have an electronic copy of the subject manual? I have
details of the Efratom OEM unit that is used in it, I just need the
surrounding Racal support stuff.
Thanks,
Dan
ac6ao
Michael Baker wrote:
My primary need for a GPSDO is as a 10MHz house frequency
reference to externally lock my spectrum analyzer up with.
I currently have a Trimble Thunderbolt running and it seems
to be working OK--
Having just got one of the sub $300 thunderbolts from ebay, I would
think
Ken Winterling wrote:
Greetings,
I am new to using a GPSDO and have recently obtained a Trimble
Thunderbolt. It is up and running and I am using TBOLTMON to monitor
its operation. Everything is green except the stored position
minor alarm.
You'll need that Ken if you ever turn it off,
My Thunderbolt (nor any of the others, of course) cannot see this one at
present, but TBolt Mon is showing a yellow button indicating incomplete
or incorrect almanac. So it knows something's up!
dr
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Does anyone have the schematic(s) for this unit? I have the details of
the heart of it, the FRK-L brick, but am a bit bewildered by the output
boards stuff.
Thanks,
Dan
ac6ao
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Jan Fredriksson wrote:
Hi,
Can anyone point to some good reading on John Harrison,
Longitude by Dava Sobel,
is a good place to start
dr
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Jean-Christophe Deschamps wrote:
Dear group,
I'm a newbie here, so please bear with me.
I'm about to buy a FEI 5680A Rubidium frequency standard off
ebay.
Jean-Christophe,
Someone else may know better than I, but some (indeed most?) of these
units on eBay do not have a 10 MHz output, only
Jean-Christophe Deschamps wrote:
Dear group,
I consider buying a used lab frequency counter / timer --preferably
HP/Agilent-- covering from few mHz to perhaps 400 MHz. I'm worried
that models handling high frequencies seem to be limited to under 100
mV input signal max. I don't want to
David McGaw wrote:
Does anyone know of a source of push-button switches for the
Racal-Dana 1992? I have one that over half are bad. No luck from
Racal-Dana or their service house.
The original makers of that switch (Omron?) stopped making them years
ago. I wonder why?
The last time I
[EMAIL PROTECTED] wrote:
Are these switches the same as the ones in the 1996? Mine works perfectly
now, but if the switches are a ticking time bomb, I'm going to move it to a
area with better temperature control, and start looking for a donor unit just
in case.
They both used the same
[EMAIL PROTECTED] wrote:
Antonio I8IOV ([EMAIL PROTECTED]) wrote:
The unconvenience with the 02M version is that it uses a military
GPIB language (MATE/CIIL), and I had to get familiar with it.
The Racal units that I have (with no button problems) have a
jumper for military or standard GPIB.
Matt Ettus wrote:
On Mon, Mar 10, 2008 at 8:47 AM, Dan Rae [EMAIL PROTECTED] wrote:
The last time I did this I found a switch at Jameco that was a near
exact replacement. The only difference was that the button was a little
too loose a fit and needed a dab of epoxy inside to hold
Does anyone know the Amphenol part number for this one? The manual
gives only an HP part number...
Thanks,
Dan
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Tom Van Baak wrote:
Does anyone know the Amphenol part number for this one? The manual
gives only an HP part number...
Thanks,
Dan
MS-3106A-18-22S; see also:
http://www.leapsecond.com/museum/hp5065a/conn.htm
/tvb
And if anyone else is looking for these, the current part numbers
Back to the switches... I found a Jameco bag for the ones I bought way
back, which fitted pretty well and work. The part number was 115086,
then quoted for KIE22, but not the same as the current ones with that
number. Jameco might know who made the 115086, but there are no clues
from the
I think this may have been pointed out already but the altitude reported
by the T'bolt is the WGS84 altitude, which is not at all the same as
the altitude on your USGS map.
If you look up WGS84 in wikipedia you will find a better explanation of
that than I could ever give.
Some of the gps
David C. Partridge wrote:
I'm looking for a frequency reference for my home lab. Cost is an issue.
I'm considering either a GPSDO such as the Trimble Thunderbolt if I can get
one at a reasonable price, or possibly a rubidium source.
David, to be considered a true time nut, you will not ever
David C. Partridge wrote:
Give me time (accurate time of course) - we all have to start with one
standard.
Seriously though, if I've got that sort of budget, can I do better than a
thunderbolt?
For £150 total, say $300 US, I don't think so, but what do others think?
You will need to add
Stanley Reynolds wrote:
Looking for some more info on operation and if setting the Time Constant to
3200GRIs is important ? Also have not set the total emission delay as I'm
guessing it has no effect except with the 2100T.
Stanley, I have the manual for the 2100 (with no suffix), if
Poul-Henning Kamp wrote:
It's trivial to do phase-tracking on any moderately strong CW signal
at the same time, so that could easily be done using the same chip.
The analog side would need to allow for those signals also then.
At least where I am the 60 kHz signal from WWVB is quite weak.
I saved a bunch of 5370A boards from being sent for gold scrap at a
recent TRW swap meet. A lot of the boards are common to both A and B
versions. If anyone has a need for any particular board, let me know
off list please. Nothing from the front panel.
Dan
On 12/28/2014 7:25 AM, David Smith wrote:
Hello Friends,
I found this new inexpensive GPSDO on ebay listed from a seller from China:
Dave, these have been discussed in the past at some length on this
list. I would point out that they use a re-cycled Morion OCXO. I have
had two of these ovens
On 2/6/2015 4:16 AM, Joe D'Elia wrote:
I shall see if I can find something of the same
vintage that uses the same top and bottom covers and side rails that I can
cannibalize to fix this unit.
Joe, You may find the side panels / handles castings since they are
common to a lot of that vintage
On 3/12/2015 1:47 PM, George Atkinson wrote:
Done.
But you might want to get Didier to correct the file names, they show as
9840...
Dan
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On 4/10/2015 4:27 PM, Bob Stewart wrote:
This is just a brief report, not a how-to.
I got a KS_24361 with a bad Lucent power module.
Thanks a lot for that report Bob, I had no idea that it was possible to
un-encapsulate those and get at the insides. I have one here that came
to me dead, and
On 5/9/2015 10:32 AM, Magnus Danielson wrote:
That is supposed to be an SMB connector, that is what I have on mine.
You can drop in a 0-ohm so that you can feed it and the antenna from
Port 1. It might be a quicker solution for you.
Cheers,
Magnus
Magnus it needs more than that to convert to
On 5/8/2015 7:11 PM, M. George wrote:
I picked it up on the usual auction site for
~125.00 shipped. I thought that was reasonable assuming it works.
Anyway, I'm not too proud to admit that I'm not familiar with the power
connector that apparently comes with the 05Q option.
Max, I'm not
Well I was nearly right, it's a broken off SMC connector.
I looked inside mine and took a picture. Converting to the standard
form would be easy enough.
Dan
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On 5/29/2015 11:53 AM, cdel...@juno.com wrote:
Hi,
I've noticed that there is a soldered area on the top of the module that
appears to be covering a hole. Has anyone taken one of these apart, and
if so is there a trim cap or pot under this hole to allow adjustment???
Corby, it looks more like
On 6/30/2015 10:21 AM, cdel...@juno.com wrote:
Yes, same workbench and location!
How about some of the 5065A owners helping out in a bigger sample?
What I thought is that say on July the 4th a few owners measure their
frequency offset to say at least 5X10-12th and then without changing the
Can anyone share the contents of this disk please? There seem to be
some 20 odd year old units coming to the market and it would be nice to
have this software available.
Thanks,
Dan - ac6ao
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On 8/11/2015 4:09 PM, Bob Camp wrote:
For the very ambitious, start swapping ROM’s and GPS parts from the “dead”
REF-1 over to the “live” REF-0.
For what it's worth, I have a dead Ref-1 here that came to me with a
dead power supply; that is now fixed but there seem to be other problems
as
On 8/12/2015 4:13 AM, Bob Camp wrote:
Hi
Indeed, there is a *lot* of difference between the REF-1 and the REF-0. Working
out a clone of the two
could be a major undertaking. I’d only try it if there was nothing else on my
schedule for the winter :)
It’s the observation that the ROM’s are
On 10/19/2015 11:51 PM, Richard (Rick) Karlquist wrote:
The thermal fuse plugs into pin sockets. It cannot be
soldered for the obvious reason that the solder
would melt it...at 109 degrees as it is marked.
My suggestion would be to jumper it out of the circuit.
However, if you'd rather have
On 7/11/2015 8:14 AM, James Robbins wrote:
Does anyone know of any other genuinely useful purpose to which the Austron
2100F, SRS FS700, etc receivers can be put in the US since the demise of Loran?
Inquiring minds would like to know. Jim Robbins, N1JR
Jim, I gave my Austron to a friend in
On 9/4/2015 8:07 PM, John Allen wrote:
Hello all - I have always wanted an HP 3048A system. I have acquired a
11848A, but need an HP 3561A or equivalent.
Is there any substitute to the 3561A?
John the problem is that all the software is specific to the 3561A so
unless you are going to write
On 11/20/2015 10:52 AM, cdel...@juno.com wrote:
Any one know how many cells went into the HP 5065A battery packs?
21 Corby, in three rows of seven, from my notes when I re-celled mine.
Dan
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On 11/21/2015 6:13 AM, Bob Camp wrote:
Hi
The key issue is that there has been a lot learned about charging batteries
since the 5065A was designed. Just as other parts of the 5065 can be improved
with some work, so can the battery charger. Given that NiCad’s aren’t cheap,
it’s worth noting that
On 11/20/2015 4:54 PM, Bob Camp wrote:
Hi
I don’t in any way doubt your count. If indeed they are putting 21 cells into
that circuit,
the NiCads likely don’t last as long as they might with a different charging
circuit ….
Bob
Bob, I was answering Corby's query; mine had an original -hp-
On 6/7/2016 10:38 AM, cdel...@juno.com wrote:
RACAL MA259 FREQUENCY STANDARD FROM 1965
Looks neat
Corby,
Internally they're a rebadged Sulzer more or less. There's been one for
sale on eBay in the US for years, literally, at the somewhat ridiculous
price of over $3,000.
item:
Corby wrote:
Need help identifying the RF connectors on the unit.
Corby, I may have some connectors on leads but would have to dig deep in
my garage. They were used a lot on some UK made Racal receivers in the
sixties...
Let me know if you still need them.
Dan
On 1/16/2016 5:00 PM, KA2WEU--- via time-nuts wrote:
Did my plot make it ? Ulrich
It did. Very impressive!
Dan
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and
On 6/27/2016 1:51 PM, Hal Murray wrote:
I assume you are doing this for fun. That means you get to do whatever you
think will be fun.
The DS3231 is pretty crappy by time nuts standards.
Maybe, but simply by adjusting mine by measuring the 32 kHz output with
an accurate counter I can get them
Does anyone have any details on the above antenna? Part Number is:
90LL122300-2 and it has a sticker on it saying it is a Global Hawk
Asset, it has a big set of choke rings (about 35 cm across) and looks as
though it might have been designed to be mounted flush on an aircraft body.
I'm doing
On 2/12/2016 11:28 AM, Charles Steinmetz wrote:
I'm helping a colleague resurrect a hard-luck HP 3048A phase noise
measurement system. In particular, he asked me to help get the 3561A
dynamic signal analyzer working again. I downloaded Volume 1 of the
service manual from Keysight, which
I saved my LH screen just as the period of seeing no satellites ended
with one coming into view at the bottom, and again maybe an hour and a
half later. In between LH reported "No Almanac" at some point.
Whatever was being done must have been fairly major!
Dan
I have a recording of this on my hard drive, at1.3 Gb it's too big to
email but I can share it via Wetransfer if anyone wants it. I would
need a recipient's email address to do this.
Dan
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