Re: [time-nuts] basic question on GPS satellites

2011-05-17 Thread W2HX
, May 16, 2011 9:37 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] basic question on GPS satellites Do you have a mask set on the signal level? I have two tbolts running that are completely surrounded by trees, and I was getting satellites popping in and out. I

Re: [time-nuts] basic question on GPS satellites

2011-05-16 Thread paul swed
To: time-nuts@febo.com Subject: Re: [time-nuts] basic question on GPS satellites What type of coax are you using and how long is the run? I live in the woods and my antenna is partially blocked by trees to the north and east and have never had problems. I have about 130ft

Re: [time-nuts] basic question on GPS satellites

2011-05-16 Thread brent evers
] basic question on GPS satellites What type of coax are you using and how long is the run? I live in the woods and my antenna is partially blocked by trees to the north and east and have never had problems.  I have about 130ft of LMR-400 between my antenna and splitter

Re: [time-nuts] basic question on GPS satellites

2011-05-16 Thread Chris Albertson
Another way to go is to move the GPS receiver so that it is close to the antenna, then use a long RS232 serial cable. Or if the distance is more than 100 feet uses a balanced type of serieal. You can use Cat-5 cable for this and there ar enough pairs in cat-5 so that you can send DC power on the

Re: [time-nuts] basic question on GPS satellites

2011-05-16 Thread paul swed
Lots of good answers I do not select a mask Most of my rcvrs will guess are 10 degrees mask. But that just happens to be were they come in at. My antenna is at 45 foot on a 95 foot tower on the south side. There are 70 foot trees around me. I use 1/2 catv hard line very low loss and free. Hit a 4

[time-nuts] basic question on GPS satellites

2011-05-15 Thread W2HX
Hi there. Recently acquired my first GPSDO. It is a datum 9390 (thank you, Norm!). One aspect of its behavior seems strange to me. Within a matter of a few minutes, it seems that satellites are appearing and disappearing. Are the satellites moving that quickly? I might go from 1SV to 3SV or

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread paul swed
Shouldn't be doing it that fast Would indicate a poor signal level might be my guess. Is your antenna above the tree line? Wet leaves can be nasty at 1.5 Ghz Regards Paul WB8TSL On Sun, May 15, 2011 at 6:30 PM, W2HX w...@w2hx.com wrote: Hi there. Recently acquired my first GPSDO. It is a datum

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread W2HX
W2HX From: paul swed [mailto:paulsw...@gmail.com] Sent: Sunday, May 15, 2011 8:00 PM To: Eugene Hertz; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] basic question on GPS satellites Shouldn't be doing it that fast Would indicate a poor signal level might

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread J. Forster
: [time-nuts] basic question on GPS satellites Shouldn't be doing it that fast Would indicate a poor signal level might be my guess. Is your antenna above the tree line? Wet leaves can be nasty at 1.5 Ghz Regards Paul WB8TSL On Sun, May 15, 2011 at 6:30 PM, W2HX w...@w2hx.com wrote

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread W2HX
Rats. 73 Eugene W2HX -Original Message- From: J. Forster [mailto:j...@quik.com] Sent: Sunday, May 15, 2011 8:23 PM To: Eugene Hertz; Discussion of precise time and frequency measurement Cc: 'paul swed' Subject: Re: [time-nuts] basic question on GPS satellites Hi Gene, Unlikely

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread Chris Albertson
On Sun, May 15, 2011 at 5:07 PM, W2HX w...@w2hx.com wrote: Hi Paul.  No, the antenna is not above the tree line. How much of the sky is visible? if you can't see blue the antenna can't see the satellites. Ok some very minor tree coverage is Ok maybe but mostly you need a clear view of the sky.

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread J. Forster
Depending on your QTH, you might only need 10' or so or a chain saw. -John On Sun, May 15, 2011 at 5:07 PM, W2HX w...@w2hx.com wrote: Hi Paul.  No, the antenna is not above the tree line. How much of the sky is visible? if you can't see blue the antenna can't see the

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread Scott Mace
What type of coax are you using and how long is the run? I live in the woods and my antenna is partially blocked by trees to the north and east and have never had problems. I have about 130ft of LMR-400 between my antenna and splitter. Scott On 05/15/2011 05:30 PM, W2HX wrote: Hi

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread W2HX
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Scott Mace Sent: Sunday, May 15, 2011 10:07 PM To: time-nuts@febo.com Subject: Re: [time-nuts] basic question on GPS satellites What type of coax are you using and how long is the run? I live in the woods and my antenna

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread Mike Feher
-3831 cell -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of W2HX Sent: Sunday, May 15, 2011 10:19 PM To: time-nuts@febo.com Subject: Re: [time-nuts] basic question on GPS satellites Length is about 12', type is RG-58, antenna is at my window

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread WB6BNQ
-Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Scott Mace Sent: Sunday, May 15, 2011 10:07 PM To: time-nuts@febo.com Subject: Re: [time-nuts] basic question on GPS satellites What type of coax are you using and how long

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread paul swed
...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Scott Mace Sent: Sunday, May 15, 2011 10:07 PM To: time-nuts@febo.com Subject: Re: [time-nuts] basic question on GPS satellites What type of coax are you using and how long is the run? I live in the woods and my antenna

Re: [time-nuts] basic question on GPS satellites

2011-05-15 Thread WB6BNQ
Sent: Sunday, May 15, 2011 10:07 PM To: time-nuts@febo.com Subject: Re: [time-nuts] basic question on GPS satellites What type of coax are you using and how long is the run? I live in the woods and my antenna is partially blocked by trees to the north and east and have never had