[SFDXA] Fwd: Fwd: FW: 144.2 interference from 72.1 MHz PRIMEX clock system

[Randy Shirley]

-------- Forwarded Message --------
Subject: 	Fwd: FW: 144.2 interference from 72.1 MHz PRIMEX clock system
Date: 	Fri, 23 Apr 2021 10:49:10 -0400
From: 	Randy Shirley <wil9926 at bellsouth.net>
To: 	Mickey Baker <n4mb at arrl.net>



Hi Mickey,

This is a real problem here in South Florida. This company looks like 
they don't care if they are not compliant and destroying the 2 meter 
band.  Please take a look at the video.

Please forward this to anyone that you think can help.

Thanks and very 73,

Randy N4QV

President SFDXA



-------- Forwarded Message --------
Subject: 	FW: 144.2 interference from 72.1 MHz PRIMEX clock system
Date: 	Wed, 21 Apr 2021 11:44:41 -0400
From: 	n4is at comcast.net
To: 	'Randy Shirley' <wil9926 at bellsouth.net>



*From:* Jose_Carlos <N4IS at COMCAST.NET>
*Sent:* Tuesday, April 20, 2021 5:30 PM
*To:* 'sfdxa mailman' <sfdxa at mailman.qth.net>; 'Florida Weak Signal 
Society' <flwss at flwss.net>; Joe Ruggieri via Microwave 
<microwave at mailmanlists.us>; gandral at mhs.net
*Subject:* 144.2 interference from 72.1 MHz PRIMEX clock system

Hi

The company PRIMEX is selling a clock service based on 72.1 MHz 30 w 
transmitter, The second harmonic I making very hard to work weak signals 
on 144.2

Here high it sounds like

https://www.youtube.com/watch?v=IumTaCjLUtk 
<https://www.youtube.com/watch?v=IumTaCjLUtk>

The company selling this clock on 72 MHz is PRIMEX in WI

https://www.primexinc.com/classicsync-products/72mhz-analog-clocks 
<https://www.primexinc.com/classicsync-products/72mhz-analog-clocks>

That could be a problem every were with poor beacons with 2^nd harmonic 
. 72.100, 72.180, 72.260 and 72.400. I don’t think they are using a 
decent low pass filter to avoid 144.200 2^nd harmonic.

PRIMEX sells 1W, 5 W and 30 W

https://www.primexinc.com/classicsync-products/transmitters 
<https://www.primexinc.com/classicsync-products/transmitters>

The signal here is s5 all day long, I am 4,5 miles away from the 30W 
transmitter on 72.1 MHz WQAU710.

I need some help to fix this issue, but I think it is growing problem 
due recent investments on 72 MHz clocks,

73

JC

N4IS

Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for 
Windows 10

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