[time-nuts] Surge Arresters

[Bob Camp]

Hi

RG-6 quad shield satellite TV cable is pretty much the low cost / low loss
way to go for feed line. The TBolts are set up to use it by default.

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Volker Esper
Sent: Monday, November 26, 2012 2:38 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Surge Arresters


Cable question: I assume that won't be the problem. I use my 26dB 
Trimble timing antenna with RG-213 because of the low loss (and the low 
cost). Before that I had 15 m (45 feet) of RG-58 combined with a car 
roof magnetic patch antenna in use without any problem. Any 50 Ohm cable 
can be used, just mind the attenuation. Any combination of those cables 
will do. Some of the time nuts even recommend cable-TV cable (75 Ohms) 
due to low loss and good shielding capabilities.

I'd rather take care with the connectors since this can be a great 
source of trouble, so avoid too much connectors on the signals way down 
to your shack and use appropriate and well-assembled quality connectors. 
The slightly higher cost will pay off.
After decades of using and assembling every type and brand of connector 
I can assure you, this is the main thing.

Volker



Am 26.11.2012 16:44, schrieb Peter G. Viscarola:
> Hi TimeNuts,
>
> What are people using for surge arresters between your GPS receiver and
the antenna, at the entrance to your house?
>
> I've got an entrance panel set up for HF, with copper ribbon to two ground
rods.  I'd like to add a connection for my GPSDO.
>
> I know the frequency is about 1.6GHz, and the active antennas use 5V or
less... is that correct?  What are the parameters I should consider when
selecting an arrester?
>
> An associated question, also, if I may:  Does it matter if I use different
types of cable between the antenna and the entrance panel and then entrance
panel and the GPS receiver?
>
> Thanks for your guidance,
>
> Peter
> K1PGV
>
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