I grew up downstate — NE of Quincy, IL and the Motorola TV mfg. operations at
Quincy closed before the Franklin Park (North) plant. While there were
assurances that Panasonic would continue operations at Quincy, local officials
were caught “off guard” with decision to close a Motorola plant
Motorola has worked with Matsushita Electric Industrial Co., Ltd (now known as
Panasonic Corporation) since 1960s. Motorola sold their television division to
Matsushita in 1970.
—
I believe that Motorola and Panasonic jointly developed this GPS antenna. While
Motorola exited the GPS receiver
Check TWO things.
1.) Has the RS-232 level converter (1488/1489, MAX232, etc.) failed?
2.) What MODE is your Z3816A, SCPI? The GPSCon software places Z3816A into
SCPI.
This is discussed in K8CU’s notes, below:
K8CU Notes - HP Z3816A GPS Frequency Standard Receiver
I highly recommend the Practical Guide created by Bill Feldmann, N6PY (sk,
2007),
found in the KO4BB repository.
—
NOTE: Check for damage by the NiCad battery !!
—-
A PRACTICAL GUIDE FOR USING THE HP 3586A/B/C SELECTIVE LEVEL METER
Expanded Version, (Version 2.2), September 2007
by Bill Feldmann,
N4IQT has nice photos of the Comsync (outside and inside)
http://www.n4iqt.com/comsync/
You can see the EPROM (v1.63 , 1998 date)
http://www.n4iqt.com/comsync/gpsdo003.JPG
Looks like an 8-channel Motorola Oncore receiver
http://www.n4iqt.com/comsync/gpsdo001.JPG
Upclose
John -
I would NOT bother with trying to replace the 10 MHz oscillator.
Spend your $$ for the inexpensive Arduino board, LCD, 5 volt antenna, and nice
enclosure that will provide you with a “self-running” GPSDO unit (operator
intervention not required to operate).
The fact that Mt. Airy
True Position was a Berwyn, PA mobile industry equipment provider.
In 2014 they acquired Skyhook Wireless and changed company name to acquirer’s.
—
These True-Position units are surplus from the cellular/mobile phone industry.
Several years ago, when these units first appeared (2010/2011), the Mt.
Blog for Oncore interface board
http://doschman.blogspot.com/2012/11/motorola-oncore-ut-interface-and-pps.html
greg, w9gb
Sent from iPad Air
> On Feb 27, 2018, at 11:31 AM, Gregory Beat <w...@icloud.com> wrote:
>
> TAPR : Motorola Oncore receiver product page
> h
DCF77 is a German longwave time signal and standard-frequency radio station.
https://en.m.wikipedia.org/wiki/DCF77
There are commercial receivers and readers for DCF77,
but this DIY project by Erik Deruiter from the Netherlands
using the Arduino MEGA from 2016 was unique.
These Hemisphere GNSS 500-1210-004# antenna / pre-amp boards (bulk, bare) with
no outdoor fiberglass enclosure appear to be same size used in A21 model.
Good for experimenter.
https://hemispheregnss.com/Products/Products/Peripherals/a21e284a2-antenna-135
Hemisphere GNSS is HQ in Scottsdale, AZ
Skip -
The Trimble Acutime 2000 outdoor antenna
http://www.n4iqt.com/trimble/Acutime2000.pdf
looks identical to the Trimble Palisade GPS antenna.
http://dc2light.co.uk/PALISADE-Manual.zip
Mark, GM4ISM had surplus Palisade antennas, at one time.
He noted differential RS-422 configuration and TSIP
https://www.febo.com/pipermail/time-nuts/2015-October/094105.html
In 2014 and 2015 Launch3 Telecom offered NOS Symmetricom 58532A GPS Antennas at
a good price ($25 each) to time-nuts members These were surplus (>750), never
used, due to mobile/cellular company merger over decade ago. Looks
Ulf -
Yes, this question, about the HP 105B, was asked in September 2016.
https://www.febo.com/pipermail/time-nuts/2016-September/100436.html
In Europe, it is virtually impossible (RoHS) to acquire NiCad batteries for
past decade — unless you are an exempt entity.
IF you desire a DIY Build,
Oscilloquartz OSA-4530 GPSDO : 2-page product brochure
http://syncarchitect.com/downloads/PDF_0018_453X.pdf
Magnus Danielson picked one up five years ago, but didn’t find the software.
https://www.febo.com/pipermail/time-nuts/2012-December/073331.html
The OSA 4530 is a three board design, with
I grew up east of the Iowa/Missouri border, so this boundary dispute was
well-known ... and occurred at same time Joseph Smith (Mormons) was at Nauvoo,
IL (1839-1844).
In 2006, the Iowa-Missouri border was investigated with GPS, as much an
archeology project as locating the historic Sullivan &
I noticed that an eBay reseller in Las Vegas (Garmin Marine dealer) has sold
over 275 of the Garmin GPS 19x HVS Position Receiver/Antenna packages at a
discounted price.
eBay auction # 171415290499
Anyone try these units out?
===
There are also a few Garmin NEMA2000 units (Marine CAN bus
The LM-358 Op-Amp is used to Invert the Serial Data (RxD, TxD) stream.
http://www.st.com/content/ccc/resource/technical/document/datasheet/61/46/87/01/98/ed/44/c5/CD0464.pdf/files/CD0464.pdf/jcr:content/translations/en.CD0464.pdf
Coupled with the usage of an RJ11 (4P4C, modular) ...
As reported by ARRL, a few days ago, on July 7th the 25 MHz antenna for WWV was
changed to circular polarization.
http://www.arrl.org/news/wwv-25-mhz-signal-swapped-to-circular-polarization
Matt Deutch, N0RGT the Lead electrical engineer at WWV said it’s hoped that the
latest antenna change to
A palindrome is a word, phrase, number, or other sequence of characters which
reads the same backward as forward, such as the words: madam, racecar, or
tattarrattat.
Palindrome Days start with July 10, through July 19.
https://www.timeanddate.com/date/palindrome-day.html
7-10-17 backwards is
David Zoldan, at Launch 3 Telecom, contacted me this morning.
He has acquired more Symmetricom 58532A GPS L1 Reference Antennas.
As posted in 2016, Launch 3 will sell these antennas for $25 each plus shipping,
to [time-nuts] list members.
FAQ regarding these Microsemi (Symmertricom) 58532A
Yes, agree.
Since your TxD LED is not blinking (~1 sec), then the Oncore receiver is not
transmitting data (TTL serial).
PWR—This LED should always be GREEN when power is applied to the GPS Kit.
TxD—The TxD indicator provides the user with visual feedback concerning data
output from the
Chris -
I was not aware that you were having issues with the TAPR Experimenters Kit.
I am finishing a DIY GPS kit build from "assorted parts sources" for Jim Pruitt.
Jim missed purchasing the TAPR kit in May 2017 (sold out before he ordered).
--
I acquired ($) a Synergy SynPaQ/E carrier board
Dan Watson (New Zealand) appears to have abandoned this Lucent KS-2436 Ref-0
GPSDO project (standalone operation).
Earlier this week, I noted Lucent KS-2436 units being sold on the TradeMe web
site (New Zealand). Listing: 1356761279 and 1356761447
I have reached the point that I need a 4-port splitter for my GPS antenna
(outdoor 5 volt). Any recommendations of models (HP/Symmertricom/Microsemi) to
acquire OR to avoid??
greg
---
> I've decided I need more clocks :)
>
> Dave
___
time-nuts
What is your DC power source?
https://www.tapr.org/images/com-cbl.jpg
I used pin 7 (Black, DC GND) and pin 8 (Red, +8 to +32 VDC)
and old +12 VDC, 1 Amp Wall Wart for my build.
greg
w9gb
Sent from iPad Air
___
time-nuts mailing list --
BTTF : Back to the Future "moment"
Austron was a company based in Austin, TX that manufactured crystal clocks for
military and industry in late 1970s. Leap Second has a series of photos.
http://www.leapsecond.com/museum/au1210/
Austron 1210-D Manual (digital model)
Product produces 1 MHz and 5
I am looking for a spare Alubos ABP 800 series enclosure (115mm length),
mounting flanges are not required.
Some time-nuts readers noted in April, they had "extra" Alubos 800 enclosures
(Bopla).
The TAPR GPS Experimenters kit (Synergy SynPaQ/E) used a custom Alubos case --
115mm in length with
from iPad Air
> On Jun 10, 2017, at 4:32 PM, Gregory Beat <w...@icloud.com> wrote:
>
> Jerry -
>
> I noted that no one answered your query from April.
> D-subminiature connectors were introduced by Cannon in 1952.
> https://en.m.wikipedia.org/wiki/D-subminiature
>
&
Jerry -
I noted that no one answered your query from April.
D-subminiature connectors were introduced by Cannon in 1952.
https://en.m.wikipedia.org/wiki/D-subminiature
That "sliding lock" (or latch) method for attachment was common with AUI
connections (15-pin size) for the original Ethernet
On February 19, 2014, TruePosition (a Liberty Media company) of Berwyn, PA
bought Skyhook of Boston, MA.
http://www.vcpost.com/articles/21778/20140220/us-wireless-location-firm-trueposition-buys-skyhook-wireless.htm
Combining their expertise and experience,
they are now operating under the
Ben -
I assume that you never received the Arduino "C code"
written by Bruce, WA3YUE for the original project?
Club's Powerpoint presentation indicated that source code was available.
http://www.packratvhf.com/techinal.htm
Packrat GPS Project (Gary, WA2OMY; Bruce, WA3YUE; George, KA3WXV) with
Starting in August 2015, Dan Watson (Sync Channel Blog) started a project to
develop a GPS board to "plug into" the Lucent KS-24361, RTFG-u REF-0 for
standalone operation (without the REF-1 module)
http://syncchannel.blogspot.com/2015/08/standalone-operation-of-lucent-ks-24361.html
By October,
Mark -
Yes, it does. :-)
The "S" and "!" menus are the most frequent menus I use with LH.
Jerry is using SynTAC.
After a few e-mail exchanges, off-list, problem was antenna location.
gb
===
So does Lady Heather... the "S" menu control things like self-surveys, entering
fixed position
Celestial Navigation for Deep Space (and Timing) ...
interesting data measurements, experimentation and demonstration.
SpaceX has the NICER experiment in its "trunk" unpressurized cargo area.
--
NICER : Neutron star Interior Composition ExploreR
Global Positioning History
https://www.c-span.org/video/?427553-2/global-positioning-system-history
Global Positioning System History Richard Easton and Eric Frazier talked about
the history and evolution of the global positioning system, or GPS. They spoke
about its early days as an American
Jerry -
I rarely use "raw" Oncore M12 commands these days, using one of the 3 common PC
programs: Lady Heather, TAC32/SynTAC, M12Oncore(old Moto pgm).
How are you routing that 1 PPS signal? Does your front LED pulse?
I wire 1 PPS to the DCD pin (DE-9M, standard RS-232), TAC32 can be configured
Received a note from John Koster, W9DDD that TAPR had one complete GPS kit left.
https://www.tapr.org/gps_exp-kit.html
Received #CAB083 (2.1mm DC Barrel Jack to Bare Wire/"Pigtail") this morning via
AirMail.
https://www.moddiy.com/products/2.1mm-DC-Barrel-Jack-to-Bare-Wire-%28Open-End%29.html
typically will press onto the DB9 male pins.
>
> Glad they fit your need.
>
> Steve, sounds like there won’t be another round?
>
> Jerry
>
>> On May 27, 2017, at 2:04 PM, Gregory Beat <w...@icloud.com> wrote:
>>
>> Steve and Jerry -
>>
>&
Steve and Jerry -
Thank you for coordinating the acquisition and machining of these End Panels
for the TAPR GPS Experimenters Kit. I understand these kits (SynPaQ/E version
XTS) are EXHAUSTED at TAPR. Check the TAPR web site for details.
https://www.tapr.org/gps_exp-kit.html
The End Panels
Possible typo?
UpdateDisplay()
greg
===
void loop()
{
getSerialString() // uses serial.available to pull in the serial data
parser() // this parses the data
wait for 1PPS tick to go high
if there has been a clock message, updateDispay() // update the display
}
===
Sent from iPad Air
As noted by Bob Camp, this Lucent pair has a rubidium standard and OCXO.
Since I posted (15 hours ago), he has sold 18 units.
So, would love to hear reports (good, bad, time ugly) next week.
Greg
> I noticed this surplus Lucent KS-24019 L108 / L109 item on eBay,
> auction # 132186030112, by
I noticed this surplus Lucent item on eBay, auction # 132186030112
by a01mhowa , based in South Carolina.
KS-24019 L108 / L109 rack unit appears to be commercial CDMA site pulls with
interconnection cables.
Seller states he has more than 10 units.
greg, w9gb
Sent from iPad Air
VFD Basics
https://www.noritake-elec.com/technology/general-technical-information/vfd-operation
Some EEVBlog readers attempt VFD rejuvenation
https://www.eevblog.com/forum/chat/vacuum-fluorescent-display-rejuvenation/
greg
Sent from iPad Air
> On May 9, 2017, at 10:46 PM, Gregory B
Mark -
Keysight MAY have that spare VFD still in stock (German office supposedly had a
few).
Several HP-34401A DVM owners have used that Chinese source for replacement.
The display model being sold appears to be: SAMSUNG SSVD INB-12MM52T
Good luck !
greg
> I looked closely at the display and
Mark -
Option 001 for the HP-5803B GPSDO
featured a 12-character (alphanumeric) Vacuum Fluorescent Display (VFD).
It appears to have been a custom VFD for HP / Agilent (Colons used in time
display).
http://www.leapsecond.com/museum/hp58503a/097-58503-13-iss-1.pdf
Noritake Itron Corp. (Ise
The "Trimble 57963-C" and "Symmetricom UCCM 089-03861-02" boards were
previously discussed in August 2015. Over the past few weeks, the prices have
decreased recently.
Sergiy in Kyiv, Ukraine reverse engineered some of the pin functions on
the 50-pin connector of these OCXO boards.
I have had some luck sending inquiries to Furuno USA (who sent query to East
Asia).
http://www.furunousa.com/Support/Default.aspx
Last time I sent a query,
It was for a Furano GPS receiver used in an integrated timing receiver/outdoor
antenna.
Received original Japanese spec sheet with some
Interesting surplus GPS receiver / 10 MHz item on eBay
http://www.ebay.com/itm/GPS-Receiver-board-from-TruePosition-GPS-locator/152340314423?
TruePosition GPS Receiver/10 MHz oscillator, auction number: 152340314423
Supposedly, this receiver is extracted from Time Position LMU300 model 101333.
I received a response from Karl Kvick at Digi-Key,
they will not be stocking this specific model or part (panels).
Greg
w9gb
Sent from iPad Air
> On Apr 28, 2017, at 11:24 AM, Gregory Beat <w...@icloud.com> wrote:
>
> I have an e-mail inquiry at Digi-Key (Friday),
> s
Motorola Oncore VP/UT+/GT+ Interface Board SemiKit by McKinney Technology
Instructions and Schematic diagram by Doug McKinney, KC3RL (SK, 2006)
http://www.tapr.org/pdf/vpguib.pdf
greg
w9gb
Sent from iPad Air
> On Mar 28, 2017, at 1:47 PM, Gregory Beat <w...@icloud.com> wrote:
&
My long-time (and accurate) 12-inch analog kitchen clock (24 years) dropped to
floor in March, as I was adjusting for Daylight Savings Time. Of course, the
polycarbonate lens cover cracked and I could not find a replacement. The
manufacturer, General Time of Athens, GA (handled Seth Thomas,
TAPR list of experimenter kit "parts"
Housing without end plates
Synergy manual (hyperlink on TAPR kit page)
"GPS receiver and required support electronics in a robust, IP68 rated (IP65)
extruded aluminum housing."
Synergy purchased that extruded aluminum housing case: 3.22” W x 5.10” L x
1.37”
mean from Synergy Systems? Or, is there an
> enclosure supplier to Synergy?
>
> Do you know if there is a schematic of the Synergy interface board available?
>
> Larry W6FUB
>
>> On 3/27/2017 9:31 AM, Gregory Beat wrote:
>> The TAPR offering is a "partial kit"
The TAPR offering is a "partial kit" from the Synergy's SynPaQ/E product.
Here is that data sheet:
http://www.synergy-gps.com/images/stories/pdf/synpaq%20product%20data%20sheet%20040110.pdf
Blank aluminum end-plates can be fabricated, or purchased from the OEM supplier.
w9gb
Sent from iPad Air
Heol Designs offers replacement boards for Trimble GPS receivers.
http://www.heoldesign.com/N01x-Trimble-Lassen-SK2-iQ-sQ-LP-ACE-replacements-boards
Heol Design's GPS receivers are based on the Copernicus II high performance GPS
chip set and mimic the legacy Trimble GPS receivers. These OEM
Gary -
The Datum 9520 series are Time Code Displays (discontinued).
They have been appearing via government and military surplus via obsolescence
sales.
In addition to the 6-digit time display of the 9520 series, this specific model
(-1000) includes the 3-digit Day of Year (DoY).
I believe
I have noted that a couple of these time-code "generators" (814 model) have
appeared on eBay the last few weeks.
True Time 800 series manual (36 pages)
http://www.drivehq.com/file/df.aspx/shareID3748302/fileID688078998/688078998.pdf
===
> Fellow clock-tickers,
> I have need of the equipment
Bruce -
You may need to swap EPROMs (July 2006 thread)
http://lists.ntp.org/pipermail/questions/2006-July/010829.html
Jason Rabel posted information about the TrueTime NTS-100, a decade ago (Dec.
2006).
https://www.febo.com/pipermail/time-nuts/2006-December/022532.html
His web site hosts the
Glenn -
These outdoor GPS antennas are PLENTIFUL via surplus. Launch3, which offered
NOS Symmetricom surplus antennas to this group 12 months ago, are now selling
these surplus Ericsson KRE units (eBay).
The H inside a hexagon is the corporate logo for Huber-Suhner.
Huber is a Swiss HQ
Here is the Manual for the True Time XL-DC (circa 1997-1999)
http://glacier.lbl.gov/gtp/DOM/Support/xl-dc-manual.pdf
gb
Sent from iPad Air
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time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
This PCTEL GPS antenna with integrated receiver (Wi-Sys) appeared on eBay,
auction # 252451556351
http://www.antenna.com/apg_products.cgi?id_num=11195
It is a 12-channel unit, NEMA output,
that uses the Silicon Labs (Austin, TX) CP-210X UART-USB Bridge chipset.
SiLabs Virtual COM Port (VCP) for
Dan Watson spent considerable time (2015) on standalone Lucent KS-24361 REF-0
with a "new" GPS board that would be "backward" compatible.
Not sure where he is fir project in 2016 (availability of OSHPark boards).
http://syncchannel.blogspot.com/2015/10/denuo-gps-retrofit-board.html
Sent from iPad
It should be noted that PCTel acquired a number of antenna manufacturers
(1999-2005),
Antenna Specialists, Micropulse, some Andrew products, Maxrad.
The GPS antenna referenced, GPS-TMG-26, is virtually identical to the
earlier Maxrad GPS antenna that is found surplus through many venues.
.
greg
Sent from iPad Air
> On Jul 17, 2016, at 11:40 AM, Gregory Beat <w...@icloud.com> wrote:
>
> It should be noted that PCTel acquired a number of antenna manufacturers
> (1999-2005),
> Antenna Specialists, Micropulse, some Andrew products, Maxrad.
>
> The GPS ant
MicroPulse™ has been a leading brand of GPS and satellite communications
antennas for over 15 years. Their antennas are used by many U.S. GPS receiver
companies, as well as most branches of the U.S. Armed Forces and NATO allies.
MicroPulse
409 Calle San Pablo
Camrillo, CA 93012 US
--
The
Elector Labs (Netherlands publisher), June 14,2016
GPS assisted 10 MHz frequency reference
https://www.elektormagazine.com/news/build-a-high-precision-10-mhz-frequency-reference?
--
Sent from iPad Air
___
time-nuts mailing list -- time-nuts@febo.com
To
Home Depot carries 3M Electrical Tape Products (Rubber, Cotton Friction, Vinyl)
http://www.homedepot.com/b/Electrical-Electrical-Tools-Accessories-Electrical-Tape-Wire-Connectors/3M/N-5yc1vZbm6yZ30
3M Temflex 2155 Rubber Splicing Tape
Old James Knight product (west of me in Sandwich, IL)
Actually, the Frequency is 100 kHz (common for calibrators in analog receivers),
with a Bandwidth of 10 Hz.
Since they used Cycles, instead of Hertz, that will help to date the item (as
well as JK logo).
Sent from iPad Air
This Time-Nuts (archive) thread from January 2010 may be helpful.
Some of this information came from i.fluke (eBay reseller from East Asia)
https://www.febo.com/pipermail/time-nuts/2010-January/043928.html
Originally designed by HP, and made under licence by Chongho in Korea, the
Z3815A used the
ll very popular and shipping daily. No EOL has been announced. There are,
> however, obvious advantages in employing u-Blox based timing devices for
> faster TTFF and greater sensitivity for users seeking those features.
>
> Art
>
>
> -Original Message-
> From: Gre
Art -
Good to hear about a uBlox SSR-6 based board.
A number of products (GPSDO, time servers, etc.) used that Motorola board set.
I was following Dan Watson's work on building a substitute late last year ...
a modern Oncore VP replacement / interpreter using the new u-blox chipsets.
TAPR sold a number of Motorola Oncore VP 8-channel GPS receivers with the TAC-2
kit in late 1990s. As I remember, the VP model will successfully emulate the
earlier 6-channel model in equipment expecting the earlier model.
It works fine in the Z3801A. There were likely Firmware versions with
David Zoldan contacted me this morning to inform me that their inventory of
Symmetricom 58532A antennas is quickly disappearing. He thanked the time-nuts
group for their previous purchases in 2015.
IF you Contact David, at Launch3, and he said that Launch3 will sell remaining
inventory to
Upcoming Event: Deep Space Atomic Clock
Jan. 14, 2016, at 7 p.m. PT (10 p.m. ET, 0300 UTC)
You can watch this event via USTREAM: http://www.ustream.tv/NASAJPL2
Speakers:
Todd Ely, DSAC Principal Investigator, JPL
Allen H. Farrington, DSAC Project Manager, JPL
David at Launch3 provided the pricing for the Symmetricom 58539A, earlier this
morning. Please contact David at Launch3 (phone number below) for further
information.
greg
-
We are marketing the GPS arrestors for $150 and are willing to sell to
time-nuts list members for $50 each.
David
David Zoldan at Launch3 contacted me late yesterday.
He has a large number of Symmetricom 58539A GPS Lightning arrestors.
http://ftd.microsemi.com/resources/download-library/documents/datasheets/58538a-and-58539a/
These were likely from same source as the L1 antennas, a couple of months ago.
I
I believe Dan Watson's Tria GPS receiver project, emulating the Motorola UT+
GPS receiver, will have an audience not only for GPS rollover issues -- but as
constellation alternatives increase by 2020 (user choices).
http://syncchannel.blogspot.com/2015_10_01_archive.html
Heol Designs (France)
Paul -
Looks like I accidentally chopped that sentence before posting.
I uploaded those Furuno files to Didier, KO4BB manual repository yesterday.
http://www.ko4bb.com/getsimple/index.php?id=manuals=02_GPS_Timing
greg
w9gb
> paul swed
>
> Not sure what location they were uploaded to.
>
The HP/Symmetricom 58834A-H01 timing receiver/antenna used the Furuno GT-77
(8-channel) and GT-80 (16-channel) GPS receivers in its outdoor radome.
I have uploaded the Hardware specification (English version) for both of these
Furuno receivers (GT-77/GT-80) as well as the 58834A-H01 schematic
Furuno (Japan) has updated their GNSS modules for multiple GPS/GNSS
constellation support.
Furuno GNSS 2015/2026 Catalog
http://www.furuno.com/files/Brochure/56/upload/GNSS2015_2016_en.pdf
Of interest, their new GT-8736 module which has an identical footprint to the
Motorola M12 Oncore
Inteknology & Solutions LLC is an electronics/computer recycler in Plano, TX.
Recently, they received new old stock FTDI UT232R-200 cables (in FTDI
packaging).
These cables are listed on eBay at half-price ($14.99) of identical cables at
Mouser ($30.00).
IF you purchase quantity from Intek, they
Electronic Surplus - Cleveland, OH
http://www.electronicsurplus.com/motorola-inc-mnt62312b1-hardware-post-mounting-bracket
For Motorola GPS timing antenna. Right-Angle 2-5/8" wide x 2-1/2".
Base with four 1/2" x 1/4" slots and two 2" x 3", 1/4" threaded U-Bolts
and hardware x 4-3/8" tall, with
Mariusz -
I submitted your question and photograph to Magellan Technical Support,
however being that this is a 20 year old OEM GPS Receiver - I do not expect
a miracle after multiple owners of the company since 1994.
http://users.cbk.waw.pl/~pozoga/oem10.jpg
It would be very helpful to
What is the I/O Pin Configuration (number/layout) on this GPS receiver?
The earlier Magellan OEM boards used an 8-pin interface (as seen in G8 manual).
Does your Magellan GPS board have these markings (silk-screened on board)??
MAGELLAN Systems Corporation
GPS OEM 10 channel
P/N
Surplus Ericsson GPS Timing Antennas (58534A), new in box, have appeared on
eBay --
at a significant reduction in price (compared to used units sold from China).
Item number: 111702246202
Seller is located in Austin, TX (USA)
Symmetricom 58534A GPS Timing Antenna (circa 1998)
Integrated GPS
Some additional information from Don, AJ7LL post on new GPS product.
This is what Bill, AA7XT (new Force12) posted on his Blog, 3 weeks ago.
Ultra-accurate GPS-Locked Precision Frequency Reference
Bob -
Thank you for reference to the Synergy SSR-6T.
I talked to Gina at Synergy early today.
The Synergy SSR-6T is still available, but now at the regular price of
$68.20
The Synergy SSR-6T GPS receiver would likely not be appropriate for usage in
the Lucent KS-24361,
since it does
Steve Gardner is an Electronics and Firmware Engineer in the UK.
Earlier this year (2015), Steve started a Blog with YouTube videos to share
some of his knowledge and personal projects, which he hopes to grow both to
engage others in the hobby and also to help complete stalled projects.
He is
I went back to the Time-Nuts archives, and noted that a modern GPS receiver to
replace the Motorola Oncore UT+ (8-channel, timing) in the HP Z3801A was
discussed 3 years ago (Sept, 2012).
https://www.febo.com/pipermail/time-nuts/2012-September/070132.html
Bob Camp suggested something like a
There are a number of uBlox modules (6 to 8 series; and sizes) that are hitting
the surplus venues, I saw some LEA-6T in the $30 to $50 price range as well as
newer 8-series.
Since the PCB is being designed for the NEO size/footprint I'll look at
what is available in surplus.
g. beat
Launch3 contacted me, this morning, and noted they received over 10 separate
inquiries for the 59532A antenna within 3 hours after I posted on "time-nuts"
(daily digest readers have not yet received notice).
For newbies, this is a great price (eBay sells the used antennas for $100 each),
and
Dan -
I have been following your experimentation with the surplus Lucent KS-24361
REF-0 module, to transform it into a standalone GPSDO.
The original usage of the classic Oncore UT+ GPS receiver for KS-24361 REF-1,
by Symmetricom / Datum for Lucent, was deliberate.
For usage at a cellular
I received this e-mail earlier today (below) from Launch3.
Launch3 has been selling surplus/overstock cellular/telecom equipment.
They currently have a LARGE supply (~750) of surplus Symmetricom 58532A
antennas.
Symmetricom 58532A GPS Antenna -- Datasheet
I see that only one of the Symmetricom TrueTime RD-5 (model 820-500) Time Code
Remote Display Clocks (7 segment LED, 0.56" high) remains unsold.
Hopefully some time-nuts acquired these nice remote time code displays.
** finally adjusted mine for local time (and DST) earlier this week **
In case
One correction, the RD-5 displays Day of YEAR (today is 251st day), not Day of
Week.
greg
Sent from iPad Air
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For the time-nut that has everything ...
IKEA RAST Night Stand - $15
http://www.ikea.com/us/en/catalog/products/44361109/
Hacking the IKEA RAST
http://www.instructables.com/id/8U-Rack-Case-From-IKEA-RAST-Table/?ALLSTEPS
A few changes/suggestions:
1. IF you only need a 6U night stand, consider
Gerhard -
No incidents with TS-2100/HEOL noted here, but I had everything powered down
last week.
--
I did pickup up a Masterclock TCD 26 Time Display Clock (red digits) -- easy to
read across room. Works great, off the IRIG-B output port (BNC) of the TS-2100
GPS.
A Canadian eBay Reseller
If anyone needs some if the Arrestors for outdoor GPS antennas
with F connectors (Trimble Bullet antenna) ... I think ai still have some
spares
In my installation parts boxes.
Love to trade for an N version (which I ran out of), or postage and offers.
greg
w9gb
Sent from iPad Air
Yes, I picked up the correct OCXO, from the same eBay seller (Massachusetts)
that earlier sold NOS MTI units. Cross referenced the part number from earlier
TS2100 posts here on time-nuts.
--
I have the Pace desoldering system, so that and some liquid flux should ease
the TCXO removal and OCXO
The TymServe TS2100 arrived this afternoon. So I started with the GPS receiver
swap (update).
I removed the Trimble ACE III receiver (39818-C), but noted that this specific
unit had a widget board (65398.69) on the SMA antenna connector and 2 wires
(DC power) to the 3-pin header on the main
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