[time-nuts] GPS antenna distribution from a DTV multi switch

Stanley Reynolds stanley_reynolds at yahoo.com
Mon May 10 14:32:01 UTC 2010


Well at least hot glue is recyclable as long as I don't get it too hot ;-) Doesn't a RF choke need low Q ? Or at least very lousily at 1.5 Ghz ?

Will connect some more receivers today to get a better idea about how well it works my Brandywine is the most deaf, will start with that one.

Stanley



----- Original Message ----
From: Bob Camp <lists at rtty.us>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Mon, May 10, 2010 6:30:10 AM
Subject: Re: [time-nuts] GPS antenna distribution from a DTV multi switch

Hi

I'm sure that's high performance microwave certified hot glue (from Lowes) and not the common garden variety kind (from Home Depot).

Bob


On May 9, 2010, at 11:05 PM, Stanley Reynolds wrote:

> 
> 
> It works picture www.n4iqt.com/dtv4x8/5vreg-mod.JPG
> 
> The feed for 13v to the antenna was a ferite bead with 3 turns, it was attached to the board with orange hot glue. It connected to the 13v input to the ua78m06, for the mod I added a 7805 from the 18v lm317 to the bead rf choke.
> 
> Stanley
> 
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