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Re: [RFI] Strange Birdie

To: rfi@contesting.com
Subject: Re: [RFI] Strange Birdie
From: Gary Smith via RFI <rfi@contesting.com>
Reply-to: Gary Smith <wa6fgi@yahoo.com>
Date: Mon, 17 Aug 2015 13:17:06 -0700
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
To clarify:
Jr radios were at the top end of the band, Futaba was on the lower edge. I know `cause I flew Futaba years ago.
Gary...wa6fgi

On 8/16/2015 12:02 PM, David Harmon wrote:
Tom....those freqs are not even close to any R/C activity on the ARRL band
plan.
http://www.arrl.org/band-plan

Most of the R/C activity was on 53.100 and up every 100kc to 53.800 anyway.
There are so few 6m repeaters and so little activity in the upper part of
the band that guys were not happy going to the lower freqs in the ARRL band
plan.
Occasionally channel 2 TV stations might interfere with the upper freq....I
think it was 53.8....but now that TV transmission has changed
frequency....there shouldn't be any problems.
But as Gary said....flying on 2.4G has totally resolved the interference
problem.

73

David Harmon
K6XYZ
Sperry, OK

-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Gary Smith via
RFI
Sent: Sunday, August 16, 2015 12:23 PM
To: rfi@contesting.com
Subject: Re: [RFI] Strange Birdie

To the group.

This could be someone with a old R/C aircraft transmitter on 50 MHz.
There was 10 channels at the low end of six meters that were (by gentleman's
agreement) for the purpose of r/c flight years ago.

Just a guess, as almost all r/c flying is now on 2.4 GHz.

Gary...wa6fgi

On 8/14/2015 5:15 AM, Tom Lizak wrote:
I have been having a strange "birdie", which is not coming from this
QTH but bearing around 60 degrees (NE) from my QTH.

This started about 3-4 weeks ago and is on 50.098.  It is a carrier
but sounds like there is which sounds like data, being sent
periodically.  It is present in the early mornings. This seems to
repeat itself every 100KHz or so (e.g. 50.098, 50.198..............51.498,
etc.). I am using the CW mode.
Since I'm not at the radio all the time, I did notice that it was not
present one evening @ 9pm !

I do not have any HF antennas erected at present, just the 6m yagi on
the tower and 30m 4sq array but didn't notice anything on that band !

The only thing I can think of is someone has a defective modem/router
in a neighboring house to the N/NE of my QTH.

Any assistance would be greatly appreciated.

73

Tom/k1tl...

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