[50mhz] Noise

[Carl]

Ive been using a CATV leak detector for decades. As the cable systems top 
frequencies expand the old testers are obsolete. Mine was $20 at a hamfest, 
covers up to 400 MHZ, speaker, meter, batteries or AC, and a connector for 
an external antenna.

Here is where a small LP antenna comes in handy, as you get closer to the 
leak tune the detector higher in frequency. With very little experience it 
will walk you right to the offender. Some of the stranger ones Ive found are 
thermostat controlled copper pipe freeze tape, touch lamps, automatic pool 
filter timers.

Carl
KM1H

----- Original Message ----- 
From: "Chris Boone" <Cboone at earthlink.net>
To: <50mhz at mailman.qth.net>
Sent: Tuesday, June 29, 2010 11:05 PM
Subject: Re: [50mhz] Noise


> Any freq is fine but the yagi size and RF level dropping off over 
> increasing
> distance is the limiting factors......Most TVI locators made by Sprague 
> used
> a yagi cut to around 216MHz.....though I did use a TV 2 yagi for some
> serious TVI finding....Yes, use AM...(Can you believe some folks try FM
> ???!)
>
> Chris
> WB5ITT
>
>> -----Original Message-----
>> > I assume you have a beam at the home QTH. Determine the heading the
>> best you can.
>> > Make a 3 element 'Cheap Yagi' (Kent Britten style), cut to aprox 123
> MHz.
>> Costs
>> > nothing but a short piece of PVC and some stiff wire. You'll need a
> small
>> hand held
>> > radio that will cover both 6M and 123 MHz. I have an Icom R10. Perfect.
>>
>>   Really silly question - why sniff at 123 MHz? What is particular about
> that
>> frequency?
>> I can use my VX-5 on AM, but I'm curious...
>
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