an other way to keep lightening damage away, to use one 1/4 wave length
stud, and bank on it, that the lightening will not transmit with full
power on the GPS frequencies.that trick is widely used on TV
transmitter antennas, The only issue is that it is not very handy to
have piece of
Hi Bob,
Yes I think they are definitely related.I have a suppressor in line but that
didn't stop the surge but probably made it cause less damage than if it hadn't
been there.
The antenna was mounted on one of the plumbing vent pipes on the roof of my
house.
I have an Alpha Delta
Hi
A surge suppressor designed to go into a medium to high power transmit
line has to “hold off” firing for quite a bit before it trips. The suppressors
that
these GPSDO’s expect to see are more like “receive only” suppressors. They
trip at much lower voltage levels than the higher power
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
Hi
The GPS RX arrestors are something that come up from time to time.
They often have strange custom part numbers and very limited data.
Sometimes the only practical way to figure out what’s what is to buy one
and see. If it’s the right sort of unit once you check it out, the hope is that
Hi
One might think that the dead antenna and blown GPSDO bias could be related….
One of the things that is probably worth repeating for the 100th time is the
need
for a proper lightning arrestor on your antenna line. Both the antenna and the
GPSDO expect there to be a suppressor on the coax.
Hi,
On 08/08/2015 07:05 PM, Bob Camp wrote:
Hi
A factory reset will not brick the unit.
Either:
1) Your TBolt is blown
2) The cable has an issue
3) The antenna has an issue.
I've seen them all over the years, so neither is necessarily the most
likely. I'd also add:
4) Power-issue
5)
Thanks everyone. In addition to the blown transistor that feeds 5V down the
coax, the one week out of box Motorola hockey puck antenna was blown too. I
bought it in 2006 as a spare and I broke the shrink wrap two weeks ago.
So I will order another spare but see if I can fix this spare.
It's
/ altitude?. You will probably need to start with a cold reset to
erase any previously stored data and then perform the survey.
-=Bryan=-
Date: Wed, 5 Aug 2015 19:16:23 -0700
From: kd4...@gmail.com
To: time-nuts@febo.com
Subject: [time-nuts] A few questions about Tboltmon
Hi,
I got
that as opposed to Overdetermined clock. To be safe and force it,use
the following keystrokes in LH
S and then P
-=Bryan=-
Date: Thu, 6 Aug 2015 04:58:39 -0700
From: kd4...@gmail.com
To: time-nuts@febo.com
Subject: Re: [time-nuts] A few questions about Tboltmon
Hi Bryan,
I didn't do
?. You will probably need to start with a cold reset to
erase any previously stored data and then perform the survey.
-=Bryan=-
Date: Wed, 5 Aug 2015 19:16:23 -0700
From: kd4...@gmail.com
To: time-nuts@febo.com
Subject: [time-nuts] A few questions about Tboltmon
Hi,
I got my new
: kd4...@gmail.com
To: time-nuts@febo.com
Subject: Re: [time-nuts] A few questions about Tboltmon
Hi Bryan,
I didn't do that. Is this something accessible under one of the tabs?
Chris
—
Sent from Mailbox
On Thu, Aug 6, 2015 at 5:21 AM, Bryan _ bpl...@outlook.com
To: time-nuts@febo.com
CC: time-nuts@febo.com
Subject: Re: [time-nuts] A few questions about Tboltmon
Hi Everyone,
When I got home last night from work, my thunderbolt was plugging along,
tracking about 5 satellites. The ppb error was a few hundred though.
So in Tboltmon I did
the following keystrokes in LH
S and then P
-=Bryan=-
Date: Thu, 6 Aug 2015 04:58:39 -0700
From: kd4...@gmail.com
To: time-nuts@febo.com
Subject: Re: [time-nuts] A few questions about Tboltmon
Hi Bryan,
I didn't do that. Is this something accessible under one of the tabs
the hard reset took me about 48 hours.
That sounds like it is doing a survey with a poor antenna location. (or too
long a cable)
The survey mode usually requires a better than minimum collection of
satellites.
--
These are my opinions. I hate spam.
Thank you to all.
I will check these items and report back to the group what I found.
The antenna is up in the clear and I am feeding it with somewhere in the range
of 60-75 feet of RG 6 quad shield.
Chris
—
Sent from Mailbox
On Thu, Aug 6, 2015 at 12:21 PM, Chris Albertson
No, but Lady Heather will do that.
Regards,
David Partridge
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Chris Waldrup
Sent: 06 August 2015 12:59
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] A few questions
@febo.com
Subject: [time-nuts] A few questions about Tboltmon
Hi,
I got my new Thunderbolt up and running this past weekend but I have a few
questions. I understand Lady Heather is a better program, and I have
downloaded it. However right now I am trying to get things right with
Tboltmon
=-
Date: Thu, 6 Aug 2015 04:58:39 -0700
From: kd4...@gmail.com
To: time-nuts@febo.com
Subject: Re: [time-nuts] A few questions about Tboltmon
Hi Bryan,
I didn't do that. Is this something accessible under one of the tabs?
Chris
—
Sent from Mailbox
On Thu, Aug 6, 2015
The GPS satellites are not geosynchronous; they move with an orbital period
of 12 hours, so their position in the sky is constantly changing. However,
they return to the same position in the sky (modulo repositioning) twice
per day.
It sounds like your Thunderbolt has a saved location that
On Wed, Aug 5, 2015 at 7:16 PM, Chris Waldrup kd4...@gmail.com wrote:
Hi,
But when I unplugged the AC power from the Thunderbolt and plugged it
back in, I was back to six satellites.
I had thought that the GPS satellites I am able to see from my location
are fixed 24/7. Do they move and
to start with a cold reset to erase any
previously stored data and then perform the survey.
-=Bryan=-
Date: Wed, 5 Aug 2015 19:16:23 -0700
From: kd4...@gmail.com
To: time-nuts@febo.com
Subject: [time-nuts] A few questions about Tboltmon
Hi,
I got my new Thunderbolt up and running
Hi
On Aug 5, 2015, at 10:16 PM, Chris Waldrup kd4...@gmail.com wrote:
Hi,
I got my new Thunderbolt up and running this past weekend but I have a few
questions. I understand Lady Heather is a better program, and I have
downloaded it. However right now I am trying to get things right
Hi,
I got my new Thunderbolt up and running this past weekend but I have a few
questions. I understand Lady Heather is a better program, and I have downloaded
it. However right now I am trying to get things right with Tboltmon first. I
had used it with my previous GPSDO, a Starloc II. I hate
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