If all else fails hire an illegal alien to open and close the door as
needed (;
Carl
KM1H
----- Original Message -----
From: "Pat Barthelow" <aa6eg@hotmail.com>
To: "Bob Maser" <bmaser@tampabay.rr.com>; "AMPS" <amps@contesting.com>
Sent: Saturday, October 11, 2008 12:41 PM
Subject: Re: [Amps] RF Interference
>
> Hi Bob,
>
> How about salvaging an instrument grade brute force line filter from
> an old piece of gear, I dont know if they exist in Computer switching
> supplies, but I tore apart some really old instruments, that had the
> Industry standard 3 blade connector that accepted the molded cord. If
> that brute force filter is grounded to your enclosure- cage, that
> may help. Then next, maybe a high pass filter between the antenna and
> the box.
>
>
>
>
>
> All the best, Pat Barthelow AA6EG Skype: sparky599Please note
> my new phone number:(530) 878-7056; aa6eg@k6bj.org
>
> Jamesburg Moonbounce Team
>
> http://www.jamesburgdish.org
>
>
>
>
>
>
>> From: bmaser@tampabay.rr.com
>> To: amps@contesting.com
>> Date: Sat, 11 Oct 2008 11:53:28 -0400
>> Subject: [Amps] RF Interference
>>
>> This may be a little off target for this reflector but maybe someone
>> can
>> offer up some advice, and it IS RF interference from a RF amplifier
>> so here
>> goes.
>>
>> When we moved into this home about 6 years ago the garage door opener
>> went
>> belly up in the first 3 months. I immediately went down to Home
>> Depot and
>> caught a sale for a Genie Excelerator garage door opener. It was
>> neat
>> because it goes up really fast and has all the whistles and bells.
>> About a
>> month later I noticed that when I would go key down with the 3CX3000
>> amp it
>> would freeze up the opener and in order to unfreeze it, all you had
>> to do is
>> trip the circuit breaker and reset it and all was well again. Just
>> talking
>> on SSB never seemed to bother it. It was a pain in the *** so I
>> called the
>> Genie folks and they sent me a replacement board. The new board had
>> the
>> same problem. At that point I started putting ferrite cores on the
>> power
>> cord and on the wires that go to the door button. Nothing helped.
>> Next I
>> built a cage out of 1/4" mesh and installed that around the whole
>> motor/PC
>> board unit. This helped somewhat but it also made the wire antenna
>> less
>> sensitive so it would only activate the door when you got within 20'
>> or so.
>>
>> During all this time, I was having monthly phone conversations with
>> the
>> Genie "Tech Support". They have logged 11 calls from me and they
>> have just
>> told yesterday me that they can't help me and they suggest that I go
>> out
>> and buy another opener.
>>
>> Has anyone else experienced this sort of problem and come up with
>> solutions?
>> FYI, the 115V that the opener is hooked up to is a dedicated line
>> with no
>> other circuits going any where into the house. Just for kicks, I
>> plugged it
>> in to a wall circuit in our kitchen using a extension(with ground)
>> and it
>> still freezes up when the amp is being used. Barefoot doesn't bother
>> it at
>> all.
>>
>> Any and all help will be greatly appreciated.
>>
>> Bob Maser W6TR
>>
>> _______________________________________________
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>> http://lists.contesting.com/mailman/listinfo/amps
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