Re: [time-nuts] HP-105B Battery Replacement?

[Martin A Flynn]

Look for a  POWERVAR model ABCE150-11M2.  It has an IEC plug and 
connector for 120 Volt in and out along with a yellow SB-50 connector 
for the 12 VDC battery connector.  Compatible with LiFePO4   and SLA 
battery chemistries



On 9/15/2016 6:21 PM, Mark Spencer wrote:

They do exist.   I've seen them in service at Telecom sites outside of the U.S. 
and Canada.   I believe there was a thread re this a few years ago ?

Sent from my iPhone


On Sep 15, 2016, at 3:13 PM, Jeremy Nichols  wrote:

Since I have a 12V 100 A-H gelled electrolyte battery as a
short-term backup (for those outages not worth firing up the generator),
I'd like to find a UPS that uses an external battery. So far I don't see
such a thing--do they exist?

Jeremy


On Thursday, September 15, 2016, Bob Camp  wrote:

Hi

It’s been quite a while since I bought anything other than a pure sine
UPS. They really aren’t as expensive
as they once were. You may find them a bit cheaper from outfits like
CyberPower than from APC. Sometimes
it s a bit tough to work out exactly what is or is not a pure sine wave
unit. If you want a full “always on” pure
sine device, they are still a bit expensive.

Bob


On Sep 15, 2016, at 2:13 PM, Jeremy Nichols > wrote:

Your point is well made. My question is: what happens to the quality of

the output sine wave if I use anything other than a true sine-wave (i.e.,
expensive) UPS? Most of them these days produce a semi-sine wave (aka
modified square wave) that may or may not play well with the 105B. Anyone
have experience?

A external battery and appropriate chargers and cabling does sound like

another good alternative. Harder to move around but I don't (yet) have such
a need, only that the 105B stay "on" regardless of power failures.

Jeremy



On 9/15/2016 10:15 AM, Bob Camp wrote:
Hi

A bigger question becomes:

Do batteries inside equipment make much sense anymore?

These days, a UPS is often a standard part of a rack in an outage prone

area. Powering

the “whatever” instrument off of the same UPS as the rest of the stuff

is one obvious

answer.

The other answer is an even older approach. Use a battery bank that is

external to all

the gear in the rack and tend it independently of each box in the rack.

That way you have

a few very large cells to worry about rather than a whole bunch

scattered about. Things like

lead acid that are impractical in a piece of gear are more of an option

in an independent

battery box. A single charger / line supply makes it easier to invest

in something with real

smarts in it. The advent of dirt cheap isolated switchers makes the

conversion to instrument

voltages a lot easier than it once was. Pick a common voltage like 12,

24, or 48V and run with it.

My answer to the frequency standard battery pack question has become

“don’t do it”. It makes

them a *lot* lighter weight !!!

Bob

___
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 there.

___
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 there.


--
Sent from Gmail Mobile
___
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 there.


___
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 there.


___
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 there.

Re: [time-nuts] LAST CALL for Symmetricom 58532A antennas

[Martin A Flynn]

Bob,
I have bought multiple items from Launch3 (heliax, cables, connectors, 
etc)  - Never an issue


Give them a call before going to paypal

Martin Flynn

On 2/20/2016 3:17 PM, Robert Watzlavick wrote:
Has anybody had trouble getting their antennas?  I exchanged emails 
with David and sent him $40 for one but I never received it.  I've 
emailed him twice now with no response.  Before I try to get my money 
back from PayPal, I thought I'd check to see if anybody else had this 
issue.


-Bob

On 01/15/2016 12:41 PM, Gregory Beat wrote:
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 time-nuts members for $25 each + shipping -- 
while their supplies last.


Thank you
=
CONTACT INFO (Phone numbers for Orders) BELOW:
  David Zoldan
Launch3Telecom.com
Launch3Services.com
P: 646.536.3699 | C: 917.374.7482 | F: 646.536.3866 | E: 
da...@launch3.net

27 Daniel Rd. | Fairfield, New Jersey | 07004
Globally connected, individually personalized.


___
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 there.

[time-nuts] GPS antenna splitters

[Martin A Flynn]

Hi folks,
Need a bit of advise:   I have a project underway that requires multiple 
GPS receivers.   They all provide 3V power to the antenna.My 
existing antenna is a generic KS-24019L112A (26dB) that needs 5V.
There's about 75' of 1/2 heliax between the receiver location and antenna.


Best fix I can come up with is using a re-purposed  Spectracom 8224* 
splitter  with an external power supply for the antenna, and DC blocking 
at the receiver ports.


Two questions

1. Is there another vendor I should be looking at?
2. Do I need to add gain at the splitter (options are -8.5 dB or +18
   dB).  Heliax chart says 2.771 dB loss per 100' @ 1.5 GHz, with
   another dB loss in the connectors and protector.

Cheers,

Martin Flynn

*http://spectracom.com/ProductsServices/TimingSynchronization/GPSAntennasAccessories/8224GPSAntennaSplitter/tabid/147/Default.aspx 


___
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 there.

[time-nuts] Sources for Mission Time Clock

[Martin A Flynn]

I am looking for a GMT/GET mission time clock  that has the following 
characteristics:


 * Reads T minus prior to launch or deployment,  T plus after.
 * Second display for GMT.
 * Simulating it on a PC display would be OK, would prefer an LED/LCD
   version for wall mounting

There is a example of what I am looking for in the background of this 
photo: https://www.hq.nasa.gov/alsj/a16/A16_116_13_15.jpg   .   We have 
NTP, IRIG-B, and a 1 PPS source to work with.


Any suggestions on a cost-effective way to accomplish this?

Cheers
Martin Flynn



___
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 there.

Re: [time-nuts] Sources for Mission Time Clock

[Martin A Flynn]

Bill,
Not adverse to using a flat panel and PC hardware.

Been looking for surplus.  Pretty slim pickings available.

Hold is required,  Clock will not provide control to external devices

Martin Flynn

On 1/11/2015 12:12 PM, Bill Hawkins wrote:

Martin,

It seems like the only cost-effective way to get that display is to
find a surplus source. If that's not possible, how about mounting a
flat panel computer monitor on the wall and driving it with some
custom software in a commercial computer with a standard operating
system. There are standard ways to handle NTP, IRIG-B, and 1 PPS.

Do you need to hold the countdown the way NASA does? Does the clock
provide the electrical signal to launch or deploy?

Bill Hawkins

-Original Message-
From: Martin A Flynn
Sent: Sunday, January 11, 2015 9:31 AM

I am looking for a GMT/GET mission time clock  that has the following
characteristics:

   * Reads T minus prior to launch or deployment,  T plus after.
   * Second display for GMT.
   * Simulating it on a PC display would be OK, would prefer an LED/LCD
 version for wall mounting

There is a example of what I am looking for in the background of this
photo: https://www.hq.nasa.gov/alsj/a16/A16_116_13_15.jpg   .   We have
NTP, IRIG-B, and a 1 PPS source to work with.

Any suggestions on a cost-effective way to accomplish this?

Cheers
Martin Flynn


___
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 there.

[time-nuts] Lucent KS-24361 power connector

[Martin A Flynn]

I am making up cables with slide latches for the Lucent KS-24361.

Questions:

 * Are pins (Pin3 - Pin 9) in the P1 / DE-9 power connector assigned,
   or spare?
 * Has anyone determined the pin out for J3 / DE-9 alarm connector?

Martin Flynn


___
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 there.

Re: [time-nuts] lightening protection of a GPSDO system / optical isolated distribution amp

[Martin A Flynn]

The N2MO station has an external GPS antenna on the gable end of the 
building.  It's connected to the polyphaser arrestor with FSJ4-50 
superflex.


The antenna mounting pipe has a #2 ground wire  (33.6 mm/2)  the 
polyphaser has it's own #2 ground wire.  Both connect to an 8'  x 5/8 
(2.4m x 16mm) driven ground rod.  The jacket of the superflex is 
grounded with the factoryt Andrew kit as well


Even with the GPS antenna lower in elevation then the HF beam and other 
antenna (with similar protection)  I have concerns about leaving it 
connected all the time.


73 Martin Flynn
W2RWJ

On 11/26/2014 4:37 PM, Dr. David Kirkby (Kirkby Microwave Ltd) wrote:

Said mentioned on an earlier thread that if a GPS antenna is used
outside, lightening protection should be used. This immediately
reminded me of something that happened about 10 years ago to me
(33.6
1) Lightening damaged my ADSL modem. It because totally dead.
2) Every computer and a printer connected to that had the Ethernet
ports blown up.

After a hell of a fight with my insurance company, they paid up on my
household insurance. The total cost was about £10,000, as all were Sun
workstations, so a bit more expensive than a typical home computer.

A few years after that, a similar thing happened, but just the ADSL
modem got destroyed - no computers.

Clearly if an external antenna is put in a high enough E-field or
H-field, it can do damage to the antenna, and potentially anything
connected to it, which would be all your test equipment, in much the
same way all my computers got their Ethernet ports blown up.

I would be *very* reluctant to use an external antenna, which is in
some way connected to a distribution unit into the back of every bit
of test equipment I have. I can see a potential (excuse the pun), of
doing a serious amount of damage.

The only way I would consider doing it, is if there was some optical
isolation. In principle one could modulate a laser at 10 MHz, pass it
down an optical fibre, then have a photodiode to recover the
modulation. Can would obviously be needed not to compromise the
signal, and that might be impossible.

I realize the signal strength from an external antenna will be higher
than an internal antenna, but does that make much (any?) difference to
the operation of the GPSDO?


FUNNY, SAD but TRUE story.

After I got hit by lightening for the second time down my telephone
line, I decided I needed to do something about it. So I got onto my
service provider (BT) and asked them what could be done, as my
telephone is fed via an overhead line. After arguing with them for
months, they agree to fit some lightening protection to my telephone
line. The day they came to fit this was a lesson in how incompetent
some technicians, and their managers can be. Of course BT call them
engineers, but this guy is not an engineering in my mind.

BT TECHNICIAN: I need to run an earth wire
ME: That is ok, so I assume you are going to put an earth rod into the ground.
BT TECHNICIAN: No, I wont use an earth rod.
ME: So how are you going to earth it? What sort of wire is it?
BT TECHNICIAN: My manager said to move some earth away with my
fingers, poke the wire into the ground, then move the earth back with
my hand. The wire is 1 mm^2.
ME: That is no good. Let me speak to your manager.

The BT technician then rings his manager, and puts him on the phone. I
explain that is not acceptable.

MANAGER: So how do you suggest we earth it?
ME: I don't know how to do it. This is not my area of expertise, but I
know that what you are proposing, with 1 mm wire and poking the wire
into the ground with your fingers is not acceptable.




Dr. David Kirkby Ph.D CEng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
Registered in England and Wales, company number 08914892.
http://www.kirkbymicrowave.co.uk/
Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)
___
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 there.



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4794 / Virus Database: 4189/8634 - Release Date: 11/26/14





--
V/Rbr
Martin A. Flynnbr
br
Chief Technology Officerbr
Information Age Learning Centerbr
2201 Marconi Roadbr
Wall Township, NJ 07719br
Cell: 732-585-9913br
Email: a href=mailto:mar...@infoage.org;mar...@infoage.org/abr
Visit us online at: a href=http://www.infoage.org;www.infoage.orgbr
Likes us on a 
href=https://www.facebook.com/infoagesciencemuseum;Facebook!/abr
br

___
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 there.

Re: [time-nuts] lightening protection of a GPSDO system / optical isolated distribution amp

[Martin A Flynn]

On 11/26/2014 5:14 PM, Jim Lux wrote:

On 11/26/14, 2:00 PM, Martin A Flynn wrote:

The N2MO station has an external GPS antenna on the gable end of the
building.  It's connected to the polyphaser arrestor with FSJ4-50
superflex.

The antenna mounting pipe has a #2 ground wire  (33.6 mm/2)  the
polyphaser has it's own #2 ground wire.  Both connect to an 8' x 5/8
(2.4m x 16mm) driven ground rod.  The jacket of the superflex is
grounded with the factoryt Andrew kit as well

Even with the GPS antenna lower in elevation then the HF beam and other
antenna (with similar protection)  I have concerns about leaving it
connected all the time.

AWG #2 seems a tad overkill, the current in a stroke can be carried by 
AWG #10 without melting, but maybe you had a lot of it around for 
other reasons.  I suspect the coax shield has smaller cross sectional 
area than AWG #2 and you'll protect your grounding wire by blowing up 
the coaxgrin. (in fact, looking at the data sheet for FSJ4-50, the 
DC resistance of the outer conductor is 1 ohm/1000 ft = AWG 10.. it's 
actually more resistance than the inner conductor (the inner conductor 
is 0.820ohms/kft, and 0.140 inch in diameter, compare to AWG 10 which 
is very close to 0.100 inch in diameter).


Hopefully your driven ground rod is bonded to the other system grounds?

I'd worry about multipath from the HF beam and tower (although maybe 
you're not using that GPS for time-nuts 1E-20 precision...grin)
The #2 copper was recycled.   The main RF grounding trapeze is tied to 
the grounding electrode system with 1/0, which was also recycled from 
another project.


Re the time-nuttery:  Only 1E-14.  Can't afford better (yet).





___
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 there.

Re: [time-nuts] lightening protection of a GPSDO system / optical isolated distribution amp

[Martin A Flynn]

On 11/26/2014 5:54 PM, Hal Murray wrote:

albertson.ch...@gmail.com said:

The ground rod needs to be bonded to the rest of the building ground system.

How do I do that effectively if the power goes in the front of the building
and the antenna is on the back?
If cost is no object, a ring ground circling the building. Otherwise a 
bonding jumper between the electrical system ground and the antenna 
grounding connection, preferably staying outside the building.

___
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 there.

Re: [time-nuts] Lightning arrestors for GPSDO antenna

[Martin A Flynn]

Dave,
We have a 26 dB Lucent  (TMG-HR-26NCM) antenna mounted on the gable end 
of the N2MO station.  The feed line (1/2 superflex) runs straight down 
to a watertight steel box with a Polyphaser GPS protector.   The 
superflex shield is tied to the ground with the standard Andrew kit.


Both the antenna mounting pipe and protector have a #2 grounding wire to 
an 8' rod.   When the ring ground is replaced we will weld it to 
existing rod from two directions.


I can prove links to pictures if it helps.

Martin Flynn

.



 26dB
On Thu, Oct 16, 2014 at 4:34 PM, Dave M dgmin...@mediacombb.net wrote:

I'm looking for effective coaxial lightning arrestors for my GPSDO
antennas.
I've seen several types; those completely enclosed in a one-piece metal
enclosure (no replaceable components) and those having a replaceable gas
discharge tube seem to predominate the list.
I'm looking closely at the gas discharge tube types, and am curious as to
their effectiveness and durability.  I'd like to know stuff like; are they
effective in dissipating a static charge, how do I know when the gas tube
needs to be replaced, are the gas tubes of a special type, are replacement
gas tube easily available, etc.

I'm interested in opinions and experiences with arrestors and
recommendations for which type is most effective.

Thanks for comments,
Dave M
_


___
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 there.

[time-nuts] Optical Distribution of 1PPS and IRIG

[Martin A Flynn]

I am working on a project where I need to transfer 1PPS approximately 
120 meters between buildings.I cam borrow a pair of 62.5 fibers from 
IT/telco to do so.


Playing cost / performance against one another, I am looking for a 
solution somewhere in the middle that does not requires SM-28 single 
mode fiber)


Martin
___
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 there.

Re: [time-nuts] Optical Distribution of 1PPS and IRIG

[Martin A Flynn]

Hi Chris,
Timing source is a SyncServer 200 with the rubidium option.The 
inter-building fiber is already  budgeted as part of the IT and telecom 
portion of the project.   It adds no cost to the project to use it other 
then the optical transceivers.


That is where i need help - selecting the best product (in terms of 
cost/performance)


Martin

On 7/13/2014 1:07 PM, Chris Albertson wrote:

What accuracy requirements do you have.  This could be easy or impossible.

Don't spend to much money distributing 1PPS because you can have it
any place you want for the cost of a GPS receiver.  A second GPS
receiver is likely cheaper than the cost of 120 meters of cable plus
the cable drivers and receivers.  Even if you build the cable system
you'd need to test it which adds more time and cost.  GPS is so cheap
you can place them where needed.

On Sun, Jul 13, 2014 at 8:19 AM, Martin A Flynn mafl...@theflynn.org wrote:

I am working on a project where I need to transfer 1PPS approximately 120
meters between buildings.I cam borrow a pair of 62.5 fibers from
IT/telco to do so.

Playing cost / performance against one another, I am looking for a solution
somewhere in the middle that does not requires SM-28 single mode fiber)

Martin


___
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 there.

Re: [time-nuts] Optical Distribution of 1PPS and IRIG

[Martin A Flynn]

___
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 there.

Re: [time-nuts] Pti OCXO...

[Martin A Flynn]

Also, I have a bunch of the 1KW solid state amp modules from said transmitter, 
if any one needs them! :)


Dan,
What channel was the TX and what are your asking?

Martin

___
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 there.

Re: [time-nuts] Looking for Dual-Time Atomic Clock

[Martin A Flynn]

What I am looking for is a way to display Local Time (MST) and Zulu 
(GMT) time in a small (6 X 8 or similar) package. There must be two 
displays and both lock up to NBS.Has anyone seen such a thing ?


A tad bigger then your request: 
http://www.atsclock.com/items/poe-digital-clocks.cfm?catID=102
We are using them at N2MO: 
http://www.sarex.us/temp_pix/thumb_9116_18_013.jpg


Martin Flynn
___
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 there.

Re: [time-nuts] Decent GPS Antenna Active/Passive Recommendation

[Martin A Flynn]

On 9/15/2013 4:25 AM, John C. Westmoreland, P.E. wrote:

Can I please have some recommendations for a decent active or passive GPS
Antenna to add to the antenna farm that doesn't break the ole' piggy bank?

John,
I am using a Lucent 26db gain antenna at the N2NO station. It's mounted 
on the gable end of the building.  Feed line is 1/2 superflex.


Search the on-line auction place using GPS antenna 26 db gain maxrad

Martin
___
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 there.

Re: [time-nuts] sub-minute time-precision in court-case

[Martin A Flynn]

Re the PSAP timekeeping Requirement: See NENA 04-002, Traceable UTC 
Source,  Master Clock Specification


http://www.nena.org/resource/collection/6EE32917-37BD-4FA0-838C-026931F702A6/NENA_04-002-v4_PSAP_Master_Clock.pdf

On 9/3/2013 7:59 PM, Jim Lux wrote:
I was assuming (with no real basis, I realize) that the 911 call time 
came from the cell equipment, rather than the Public Safety Answering 
Point log.  The PSAP log would have no particular reason to be synced 
to the carrier equipment. It could well be what time was on the watch 
of the guy starting the equipment, although these days, one would 
*think* that they use something like NTP to set the system time.


___
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 there.

Re: [time-nuts] GPS Antenna Install

[Martin A Flynn]

On 3/10/2013 11:18 AM, Martin A Flynn wrote:
Sorry about the blank messages - not sure why I could not reply to my 
own message...


In any case,  thanks to the help from  kind folks on the list, the 
TS-2100L in in the rack at the N2MO amateur radio station at InfoAge.


The N2MO team spent yesterday doing the prep work to mount a 27dB 
antenna on the gable end of the building, using 1/2 heliax for feed 
line, with a Polyphaser  DGXZ + 06NFNF installed in the line before it 
enters the building.


The antenna mount pipe and the Polyphaser are grounded via #2 copper 
cable that will be exothermic welded to the ground rod.


Thanks again!

Martin Flynn

PS - Now that the precision time bug has bitten, the team, is 
considering a Rubidium standard!


Precision time novice needing help !   We have chance to upgrade 
(replace) our existing TS-2100-L with a TS2100-GPS system with the 
rubidium option.


What questions should we be asking the seller?
*Is there a method to determine the lamp hours from the console?
*Software vintage that corrects the 1PPS issue (or is it relevant)?

While InfoAge is a huge site, it is not a huge budget!

Martin

___
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 there.

Re: [time-nuts] GPS Antenna Install

[Martin A Flynn]

Exothermic weld = CadWeld.  See 
http://en.wikipedia.org/wiki/Exothermic_welding


On 3/16/2013 2:11 PM, Bob Camp wrote:

Hi

Better check the electrical code in your area. They likely are quite specific 
about what you can and can't do with a proper ground connection. Copper / 
copper welding generally means brazing or soldering. Both are often prohibited 
due to the heat burst at the joint during a lightning hit. That surprised me a 
bit the first time I ran into it, but made sense once I dug out the explanation.

Bob

On Mar 16, 2013, at 1:42 PM, Don Latham d...@montana.com wrote:


ground rods usually thin copper clad over steel. Better to use proper
copper clad clamps with anticorrosion paste than to try to weld.
Don

Martin A Flynn

On 3/10/2013 11:18 AM, Martin A Flynn wrote:

Sorry about the blank messages - not sure why I could not reply to my
own message...

In any case,  thanks to the help from  kind folks on the list, the
TS-2100L in in the rack at the N2MO amateur radio station at InfoAge.

The N2MO team spent yesterday doing the prep work to mount a 27dB
antenna on the gable end of the building, using 1/2 heliax for feed
line, with a Polyphaser  DGXZ + 06NFNF installed in the line before it
enters the building.

The antenna mount pipe and the Polyphaser are grounded via #2 copper
cable that will be exothermic welded to the ground rod.

Thanks again!

Martin Flynn

PS - Now that the precision time bug has bitten, the team, is
considering a Rubidium standard!

Precision time novice needing help !   We have chance to upgrade
(replace) our existing TS-2100-L with a TS2100-GPS system with the
rubidium option.

What questions should we be asking the seller?
*Is there a method to determine the lamp hours from the console?
*Software vintage that corrects the 1PPS issue (or is it relevant)?

While InfoAge is a huge site, it is not a huge budget!

Martin


___
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 there.

[time-nuts] Antenna Install - was Hello and new Project

[Martin A Flynn]

___
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 there.

[time-nuts] Antenna Install - was Hello and new Project

[Martin A Flynn]

___
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 there.

[time-nuts] Antenna Install - was Hello and new Project

[Martin A Flynn]

___
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 there.

[time-nuts] GPS Antenna Install

[Martin A Flynn]

___
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 there.

[time-nuts] GPS Antenna Install

[Martin A Flynn]

Sorry about the blank messages - not sure why I could not reply to my 
own message...


In any case,  thanks to the help from  kind folks on the list, the 
TS-2100L in in the rack at the N2MO amateur radio station at InfoAge.


The N2MO team spent yesterday doing the prep work to mount a 27dB 
antenna on the gable end of the building, using 1/2 heliax for feed 
line, with a Polyphaser  DGXZ + 06NFNF installed in the line before it 
enters the building.


The antenna mount pipe and the Polyphaser are grounded via #2 copper 
cable that will be exothermic welded to the ground rod.


Thanks again!

Martin Flynn

PS - Now that the precision time bug has bitten, the team, is 
considering a Rubidium standard!

___
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 there.

Re: [time-nuts] Hello and new Project

[Martin A Flynn]

Finally broke down and built a crossover Ethernet cable   Manually 
setting my laptop to 192.168.56.100, I can connect to the TS2100L on 
192.168.56.99


I was able to telnet to the TS2100 L and clear out the stray bits in the 
config that were not allowing me to config via the serial port.


Appreciate the help from everyone!

Martin Flynn

On 2/23/2013 12:15 AM, Scott McGrath wrote:

Ill see if I can dig up my manual for this used these units a few years ago

Sent from my iPhone

On Feb 22, 2013, at 9:10 PM, Martin A Flynn mafl...@theflynn.org wrote:


Scott,
Can you point me at the appropriate documentation so I can default the unit?

Martin

On 2/22/2013 1:06 PM, Scott McGrath wrote:

Recommend doing a reset to default and configure as directed there are a lot of 
configurable options which can control access to this box




___
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 there.

Re: [time-nuts] Hello and new Project

[Martin A Flynn]

This is the low-budget version without the front panel display (TS2100L)

On 2/21/2013 11:03 PM, Lizeth Norman wrote:

Use the buttons on the front panel to drill down into the setup menu
and find the dhcp setting.
Have fun

On Thu, Feb 21, 2013 at 10:05 PM, Martin A Flynn mafl...@theflynn.org wrote:

Hi folks,
I picked up a used TS-2100L for use at a local technology museum. Unit
powers up, locks, and syncs. (all three front panel LED are green)

Using wire shark I can see traffic to the device on 192.168.56.99, however I
can't connect to the management page.

Any suggestions on how to proceed?

Martin Flynn
__


___
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 there.

Re: [time-nuts] Hello and new Project

[Martin A Flynn]

On 2/21/2013 10:16 PM, Mike S wrote:

On 2/21/2013 10:05 PM, Martin A Flynn wrote:

Hi folks,
I picked up a used TS-2100L for use at a local technology museum. Unit
powers up, locks, and syncs. (all three front panel LED are green)

Using wire shark I can see traffic to the device on 192.168.56.99,
however I can't connect to the management page.

Any suggestions on how to proceed?


Obvious questions - Can you ping it? Did you configure your PC to be 
on the same subnet (192.168.56.0/24)? Have you tried connecting to the 
serial console?
PC on same subnet.  Tried factory-assembled straight and crossover 
serial cables, it will not connect  to serial port  B.  I won't rule 
out the cables being pinned wrong.


Martin
___
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 there.

Re: [time-nuts] Hello and new Project

[Martin A Flynn]

Scott,
Can you point me at the appropriate documentation so I can default the unit?

Martin

On 2/22/2013 1:06 PM, Scott McGrath wrote:

Recommend doing a reset to default and configure as directed there are a lot of 
configurable options which can control access to this box


___
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 there.

[time-nuts] Hello and new Project

[Martin A Flynn]

Hi folks,
I picked up a used TS-2100L for use at a local technology museum. Unit 
powers up, locks, and syncs. (all three front panel LED are green)


Using wire shark I can see traffic to the device on 192.168.56.99, 
however I can't connect to the management page.


Any suggestions on how to proceed?

Martin Flynn
___
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 there.