[time-nuts] Splitter for GPS antenna suggestions?

[Bob Camp]

Hi

The Symmetricom / HP splitters are way more than just a splitter. They have an amp and some filtering in addition to the split. They also pass DC from only one port and correctly DC terminate the other ports so you don't get an "antenna missing" error.

Bob

On Oct 26, 2013, at 12:54 PM, Tom Knox <actast at hotmail.com> wrote:

> I think this discussion could use some parity. Some many options have been presented. But to return to one of the first posts, I would buy a Symmetricom Splitter on eBay. They have really become the industry standard and can be had for a reasonable price. There are certainly products that could be selected to meet your needs for less money but it will have some compromises, and there are others that could meet or perhaps even exceed Symmetricoms performance but are usually more money and are much less common on the surplus market. I would buy one with more ports then you need in case you ever want to test or install an additional GPS receivers. Remember "If you buy the best you only cry once"
> 
> Thomas Knox
> 
> 
> 
>> From: lists at rtty.us
>> Date: Sat, 26 Oct 2013 08:00:32 -0400
>> To: time-nuts at febo.com
>> Subject: Re: [time-nuts] Splitter for GPS antenna suggestions?
>> 
>> Hi
>> 
>> Pretty much all of the MiniCircuits splitters seem to happily pass DC. The same is true of all of the TV splitters I've tried. The standard circuits (as in the lowest cost) have a transformer or transmission line that has no DC path to ground.
>> 
>> Bob
>> 
>> On Oct 26, 2013, at 12:58 AM, David <okdavid5555 at cox.net> wrote:
>> 
>>> Hello --
>>> 
>>> I'm not very knowledgeable electronically, but I am currently using a
>>> Minicircuits ZAPD-3DB-1575-3 splitter to connect one TrueTime 142-400 GPS
>>> antenna to a Spectracom 8183 and a Spectracom 8183-A. I use the Spectracoms
>>> only as precise digital clocks, and they seem to work just fine.
>>> 
>>> I bought the Minicircuits splitter on eBay for $30, buy-it-now, as I recall,
>>> but it's been a while ago.
>>> 
>>> Hope that's helpful.
>>> 
>>> David in Oklahoma City
>>> 
>>> -----Original Message-----
>>> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
>>> Behalf Of Frank Hughes
>>> Sent: Friday, October 25, 2013 5:31 PM
>>> To: time-nuts at febo.com
>>> Subject: [time-nuts] Splitter for GPS antenna suggestions?
>>> 
>>> Hi,
>>> I want to see if it is possible to feed both the Trimble TB and the Jackson
>>> Labs Fury from the existing antenna. It appears both the TB and the Fury are
>>> 5vdc antenna power. 
>>> 
>>> Checked the auction site for splitters, but before I randomly buy anything,
>>> could someone please suggest what they use that works?
>>> 
>>> Thanks, and 73
>>> Frank
>>> KJ4OLL
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