[Scan-DC] Feds admit radios interfere with garage door openers

[Robert Eisner]

What is the offset for the input frequencies for a 380 MHz TRS?

Sent from my iPhone

> On Nov 18, 2019, at 11:11 AM, Mark Cobbeldick via Scan-DC <scan-dc at mailman.qth.net> wrote:
> 
> Every 378-400 P-25 system I have installed I have gotten reports of
> this issue.  With the worst being an Army Depot in central
> Pennsylvania.
> 
> Talking to City/County Commissions or trying to explain the situation
> to pissed-off homeowners doesn't get you anywhere.  
> They don't know what a FCC Part-15 device is,......or care!
> 
> Their [often expensive] garage door opener doesn't work, and "I" broke
> it is all they see...
> 
> 
> 
> 
> ===================================
> Mark Cobbeldick, KB4CVN
> Monroe, VA
> ===================================
> 
> My goal in life is to be as good of a person my dog already thinks I
> am.
> 
> -
> 
> ------------------------------
> 
> Message: 7
> Date: Thu, 7 Nov 2019 17:05:57 -0500
> From: Alan Henney <alan at henney.com>
> To: Scan DC <Scan-DC at mailman.qth.net>
> Subject: [Scan-DC] Feds admit radios interfere with garage door
> openers
> 
> Is the new Warrenton system 380 MHz?  How can that impact a receiver
> at 315 MHz?
> 
> A top-secret and secure federal government facility just northwest of
> Warrenton admitted Tuesday that it may be responsible for crippling
> dozens of garage door openers in two nearby subdivisions.
> 
> <snip>
> 
> read more at:
> 
> https://www.fauquiernow.com/fauquier_news/article/fauquier-feds-admit-
> radios-interfere-with-garage-door-openers-11-5-2019
> 
> 
> ------------------------------
> 
> 
> Message: 9
> Date: Thu, 7 Nov 2019 17:51:13 -0500
> From: "~Bill" <ecps92 at earthlink.net>
> To: "'Alan Henney'" <alan at henney.com>,    "'Scan DC'"
>    <Scan-DC at mailman.qth.net>
> Subject: Re: [Scan-DC] Feds admit radios interfere with garage door
> openers
> 
> Since Door Openers share with FEDS and are pretty cheap on the RX
> side, it is like trying to listen to an 800 TRS while living next-door
> to a Cellular site.
> 
> Been plenty of stories over the years on this topic across the
> country.
> 
> Heck even in a high RF zone, Car Alarm Remotes tend to not work unless
> right on-top of the car.
> 
> 
> Bill - N1KUG
> Boston, Mass
> Cruise Ship Frequencies
> http://scanmaritime.com/
> 
> 
> 
> ------------------------------
> 
> 
> 
> Message: 10
> Date: Fri, 8 Nov 2019 08:26:18 -0500
> From: John Wilson <w4uvv at comcast.net>
> To: Alan Henney <alan at henney.com>, Scan DC <Scan-DC at mailman.qth.net>
> Subject: Re: [Scan-DC] Feds admit radios interfere with garage door
> openers
> 
> FYI my database shows 319 & 390 mhz. also as low power garage door
> opener/closer frequencies.? The Ft. Lee VA trs control frequency
> installed over 10 years ago is on 386 mhz. and has good area
> coverage.? 
> 
> Any garage door opener/closer installed in the area using the 300 mhz.
> 
> range can be at great risk of not working. I'm sure the area
> installers are aware of the potential problem.? My home was built with
> an attached one vehicle carport.? Later separately I had a two vehicle
> carport installed to accommodate my vehicle's roof mounted radio
> antennas.
> 
> John
> W4UVV
> 
> 
> ------------------------------
> 
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