Re: [time-nuts] Has my TBolt gone south ?

2015-08-13 Thread Björn Gabrielsson
A nearby thunderstorm could have taken out the preamp in the antenna. 73 Bill Beam NL7F Carefully powering the antenna from a separate supply and then measuring the current - is one way of checking that the LNA still works. -- Björn ___

Re: [time-nuts] Has my TBolt gone south ?

2015-08-13 Thread Hal Murray
bpl...@outlook.com said: p.s. I believe you need a minimum of three satellites to work through the standard or precision survey. The Z3801A manual says it needs 4. I suspect there is an additional requirement that the satellites have a good-enough position in the sky. (as compared to all

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Bob Camp
Hi Looks like no antenna ( = no RF in the front end). If it’s been on for a while, I’d start with the antenna and work back to the TBolt. Bob On Aug 12, 2015, at 8:47 AM, Alberto di Bene dib...@usa.net wrote: Today I switched on again my TBolt after a few weeks of power down. It looks

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Alberto di Bene
On 8/12/2015 8:29 PM, Hal Murray wrote: How long did you wait after turning it on? How good is your antenna position? Did you tell it to remember the location after a survey finished? If it's been off for a few weeks, it doesn't know where the satellites are. To get started, it has to find one

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread William Beam
A nearby thunderstorm could have taken out the preamp in the antenna. 73 Bill Beam NL7F - Original Message - From: Discussion of precise time and frequency measurement To: Cc: Sent:Wed, 12 Aug 2015 23:29:45 +0200 Subject:Re: [time-nuts] Has my TBolt gone south ? On 8/12/2015 8:29 PM

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Bob Camp
Hi Never ever rule out the idea that a squirrel has found your feed line a really tasty thing to chew on…. Bob On Aug 12, 2015, at 5:29 PM, Alberto di Bene dib...@usa.net wrote: On 8/12/2015 8:29 PM, Hal Murray wrote: How long did you wait after turning it on? How good is your antenna

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Bryan _
my TBolt gone south ? dib...@usa.net said: Today I switched on again my TBolt after a few weeks of power down. It looks like it has decided to take a period of rest, maybe definitive... How long did you wait after turning it on? How good is your antenna position? Did you tell

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Chris Waldrup
of three satellites to work through the standard or precision survey. -=Bryan=- To: time-nuts@febo.com From: hmur...@megapathdsl.net Date: Wed, 12 Aug 2015 11:29:58 -0700 CC: hmur...@megapathdsl.net Subject: Re: [time-nuts] Has my TBolt gone south ? dib...@usa.net said: Today I switched

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Jason Ball
: Discussion of precise time and frequency measurement To: Cc: Sent:Wed, 12 Aug 2015 23:29:45 +0200 Subject:Re: [time-nuts] Has my TBolt gone south ? On 8/12/2015 8:29 PM, Hal Murray wrote: How long did you wait after turning it on? How good is your antenna position? Did you tell

[time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Alberto di Bene
Today I switched on again my TBolt after a few weeks of power down. It looks like it has decided to take a period of rest, maybe definitive... The link below is a screen capture of LH, with some annotation from me. Is there anything that, in your experience, I can try to diagnose the failure and

Re: [time-nuts] Has my TBolt gone south ?

2015-08-12 Thread Hal Murray
dib...@usa.net said: Today I switched on again my TBolt after a few weeks of power down. It looks like it has decided to take a period of rest, maybe definitive... How long did you wait after turning it on? How good is your antenna position? Did you tell it to remember the location after a