I have done the factory mod to my O2 and although I haven't tested it
extensively on VHF, the HF problem I was having went away. At my shack
(www.n6ie.com) I have a 50 Watt 2-meter FM radio about 1 foot from the
headphone input on the Orion II, and I have no RFI problem. I just now
tried operating a 2-meter HT near the Orion and I can hear a slight 'pop'
when I key it if the HT is less than about one foot from the O2.
When I have my cell phone on the table in front of the rig, I can hear a bit
of 'buzzing' when the cell is about to ring, which happens to a lot of audio
equipment these days.
Ron Castro
Chief Technical Officer
Results Radio, LLC
N6IE
www.N6IE.com
----- Original Message -----
From: "fraz1" <fraz1@bellsouth.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, November 23, 2007 5:58 AM
Subject: Re: [TenTec] HEAD_PHONE_INTERFERENCE_O2
Hi George.......yes, they do. I believe later units already have the
circuit installed. TT usually will supply the little PCB mod free of
charge
if you contact them.
John K4NP
----- Original Message -----
From: "george" <goofyham@rochester.rr.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, November 23, 2007 7:52 AM
Subject: [TenTec] HEAD_PHONE_INTERFERENCE_O2
I've had enough of my VHF packet transmitter getting into my headphone
output of my O2. Every time my packet VHF transmitter transmits the audio
is
interfered with. This doesn't happen with the speaker output. I've tried
different head phones with no change. I've also installed RFI devices on
the
headphone line, no help!
I'm told that Ten Tec has a mod for the headphone output circuit. Is this
true?
Thanks.
George W2YJ
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