Hi Dave,
one nice feature is that some reasonably priced analyzers offer 1Hz
resolution bandwidths (8560E etc) which is really nice for precise work at
very
high frequencies... and for precise phase noise work which is usually
calibrated in dBc per 1 Hertz.
It allows one to clearly see
That's the one I meant, Ed. Wi125. Just saw a writeup in a trade mag.
Don
- Original Message -
From: Ed Palmer ed_pal...@sasktel.net
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Friday, October 30, 2009 10:41 AM
Subject: Re: [time-nuts] new gps
Hello all,
I have a Garmin GPS17 HVS which is a GPS receiver/antenna in one unit.
When I first bought it I used it to discipline an HP10811 OCXO. One
day it stopped
responding to its monitor program.
I got a TBOLT which has kept me busy and now I want to compare it to
the Garmin.
Although
A stab in the dark. I don't have one of these.
The doc I find says that these are supplied with a rechargable lithium cell
which enables back up of GPS data . It is supposed to last 10yrs, so if
yours is reaching retirement age it may have gone awol and dropped the
serial parameters to a
I bought from Naptech a very clean HP8566B for $2200. I am very happy with
it.
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of John Miles
Sent: Friday, October 30, 2009 11:06 PM
To: Discussion of precise time and frequency measurement
The HP8569 is a good moderate-price choice that goes up to 18GHz. It's
new enough to have digital display, so you can do trace math like
normalization, and dump plots via GPIB. However, you cannot set
commands via GPIB.
The LO is stabilized (not synthesized) so frequency accuracy isn't too
On 10/31/09 5:26 AM, John Ackermann N8UR j...@febo.com wrote:
The HP8569 is a good moderate-price choice that goes up to 18GHz. It's
new enough to have digital display, so you can do trace math like
normalization, and dump plots via GPIB. However, you cannot set
commands via GPIB.
Suppose your 17 HVS having flat backup battery, once power up, by
default, it goes to Garmin mode.
You need to run the setup with:
SNSRCFG
http://www8.garmin.com/support/collection.jsp?product=010-00242-53
Reconfigure the 17 to NMEA mode
Chao,
Pascal
On 10/31/09, mike cook
Since Jim opened the door, I should mention that one of the projects
underway for the High Performance SDR group (http://www.openhpsdr.org)
is Cyclops which works with the existing HPSDR Mercury receiver board
to provide a DC - 1 GHz spectrum analyzer and tracking generator. Not
sure when it
-Original Message-
From: time-nuts-boun...@febo.com
[mailto:time-nuts-boun...@febo.com] On Behalf Of John Allen
Sent: Friday, October 30, 2009 11:59 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] HP 5359A Manual Needed
Thanks to all for
Does anyone know anything about these? My attempts at googling it failed
miserably.
Thanks
Dave
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions
Hi,
Anybody got a .wav file of a modulated IRIG-B timecode? I just want something
to do a quick test on a display. My nomal IRIG generator is buried in the
garage. A simple app to drive a sound card would also do. I know at least one
of the Linux NTP implementaions can do this but I'm not
to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
__ Information from ESET Smart Security, version of virus
signature database 4560 (20091031) __
The message was checked by ESET Smart Security.
http://www.eset.com
of virus
signature database 4560 (20091031) __
The message was checked by ESET Smart Security.
http://www.eset.com
-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
Quid
mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
__ Information from ESET Smart Security, version of virus
signature database 4560 (20091031) __
The message was checked by ESET Smart
Don't know if the level is right, this signal maybe clipped and I need to
attenuate it.
www.n4iqt.com/timecode/timecode.wma
also it's a wma trying to convert to a wav, will place in the same place if it
figure it out.
Stanley
- Original Message
From: Robert Atkinson
Hi all,
I have a Rapco series 800 time code reader surplus to my requirements. It's a
model 802 and is a resonably modern 1U 19 unit. Black with LED display of
days:hours:min:sec. Standard IRIG B 1kHz modulated input. If anyone is
interested please contact me off-list. I'm in the UK so shipping
Recorded it and tested on my reader should be ok now:
www.n4iqt.com/timecode/timecode.wav
It is day 076 hour 13 min 54.
Stanley
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
Hi Brent:
Spectrum analyzers can be used in different ways. For example if you know
there's a signal and want to characterize it. The other case is where you're
looking for some unknown signal that may be (or may not be present) down near
the noise threshold.
The first case is straight
Another major difference between the older (sweeping) analyzers and the more
modern ones (FFT) is that the sweep type analyzers only look at one particular
frequency once per sweep, and for a short time, while the fft types pretty much
look at the entire span continuously. That makes the fft
://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
__ Information from ESET Smart Security, version of virus
signature database 4560 (20091031) __
The message was checked by ESET Smart Security.
http://www.eset.com
-=-=-=-=-=-=-=-=-=-=-=-
Bruce
Thanks Stanley,
That worked great.
73,
Robert G8RPI.
--- On Sat, 31/10/09, Stanley Reynolds stanley_reyno...@yahoo.com wrote:
From: Stanley Reynolds stanley_reyno...@yahoo.com
Subject: Re: [time-nuts] IRIG B(1) sample wav file
To: Discussion of precise time and frequency measurement
Anyone with manuals or schematics for these units?
Anyone with any experience repairing them?
Thanks in advance.
Joe
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and
Didier Juges wrote:
Another major difference between the older (sweeping) analyzers and the more
modern ones (FFT) is that the sweep type analyzers only look at one particular
frequency once per sweep, and for a short time, while the fft types pretty much
look at the entire span continuously.
As a long-time lurker, I hesitate to presume that something might
interest this erudite and well informed group. But I came across a
couple of items I have not heard mentioned by anyone. They are simple
USB dongles set up as spectrum analyzers. I bought one of each with
external antennas
Hi Joe,
these are very simple circuits, basically just a voltage regulator from LT,
and an Agilent L1 amplifier MMIC, and a number of SAW/Cavity filters, one
for each output.
Depending on what is wrong (the voltage regulator, or the MMIC) you can
probably replace these two with a host of
Thanks guys,
It is up and running now.
I dont know if I had not addressed it properly re. COM port or speed
or if the battery needed time to charge or the right button had to be
clicked,
but after messing with it for some time it came good.
thanks,
Neville Michie
On 31/10/2009, at 11:53 PM,
Here are some specs for a hardware device:
http://www.meinberg.de/english/products/tcr511pci.htm
Stanley
Does anybody know what is the time difference (or error) between two
PC-s set this way?
(I mean the difference between two PC internal RTCs).
Can this method be used to sinc two sound
Said,
Thanks for the reply. This is certainly a starting point. A schematic
would be wonderful. I have looked and have not found one yet.
The units both provide about 4.5 VDC to the center pin when any port is
connected to my Tbolt. However, the signal amplitude, as measured by
TBoltMon, is
Hi Joe - I have the Information Note that comes with new 58535A units.
I wish I could scan and email it, but no scanner right now.
The most useful info is the specs - below.
BW +/- 10 MHz -3 db
Gain 0 +/- 3 db
NF 5 db typ.
VSWR 1.2 input typ. 1.6 typ output both at L1
Isolation -30 db at L1, -54
John,
Thanks for the effort. I have the info sheet. I am looking for a service
manual ideally but likely will not find it though I thought I would ask.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of John Allen
Sent: Saturday,
Hi Joe,
I have the same problem with my Thunderbolt even though my splitter works
well. Not sure why. This is especially so if I cascade the Agilent unit
with a passive splitter, I can never get the Thunderbolt to lock up.
I think the added noise of the Amp may play funny with the
32 matches
Mail list logo
