[RVRC] interference potential on 442.250

Alan Wolke alan.wolke at gmail.com
Thu Jul 26 20:35:54 EDT 2012


Certainly the issue that needs to be checked is if their output de-senses
our machine's input.



On Thursday, July 26, 2012, Pete Fierro <overthetop52 at yahoo.com> wrote:
>      Marvin
>     I did some checks to this repeater.His power seems to be quite small
compared to where I live.Our 440 machine seems to be much stronger in
transmitting&could easily override any interference,at least from my
perspective.This is not like W2FLA,on the same frequency.Ive been on the
440 machine quite a bit&haven't heard of any said interference.Why he chose
to locate his input/output frequencies close to ours is unknown.
>      Guess have to watch&see.400 watts is good but its location is
paramount for good range.Judging from my "S" meter,its not too strong at
all...73..Pete
>
>
>
> ________________________________
>  From: marvin bronstein <marvbrons at verizon.net>
> To: RVRC Distribution <rvrc at mailman.qth.net>
> Sent: Thursday, July 26, 2012 5:14 PM
> Subject: [RVRC] Fw:  interference potential on 442.250
>
> I failed to clarify my message to RVRC members.  This repeater has been
> placed on the air and on a frequency near the input frequency to our
442.250
> repeater. (our repeater operates on 442.250 MHz output (TX) and 447.250
MHz
> input (receive) which is only 25 KHz from this 'new' repeater which is
> transmitting on 447.275 MHz.
> MetroCor guidelines provide a MINIMUM separation of 15 miles from/to
> adjacent channel stations.  This new repeater represents only 8 mile
> separation.
>
> Marvin
>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> ----- Original Message -----
> From: "marvin bronstein" <marvbrons at verizon.net>
> To: "RVRC Distribution" <rvrc at mailman.qth.net>
> Sent: Thursday, July 26, 2012 4:25 PM
> Subject: [RVRC] interference potential on 442.250
>
>
>> Members of RVRC,
>>
>> It has come to my attention that a repeater has been placed on the air in
>> Edison, NJ.  This repeater is on the first adjacent channel and reversed
>> (447.275 Tx/442.275 Rx). The owner/operator has indicated that it has
been
>> operational for the past  60 days without any complaints!
>>
>> It is being operated by AA2VT in Edison (residence) and running 110 watts
>> into a 6 dbi gain antenna. This represents approx. 400 watts ERP.
>>
>> I request that all RVRC members pay particular attention to times when it
>> appears there may be interference to our repeater and be prepared to
>> switch to listen on 447.275 (tone 118.8)
>> to evaluate the interference and determine if is, in fact, causing a
>> problem.
>>
>> Please keep a close watch on this matter and report your findings so that
>> we may forward this to MetroCor since AA2VT has applied for a
coordination
>> on that frequency(ies).
>>
>> 73
>> Marvin
>> K2VHW
>> k2vhw at verizon.net
>>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~```
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