[TenTec] In praise of older technology AM transmit with TenTec rigs

GARY HUBER glhuber at msn.com
Tue Feb 25 15:03:09 EST 2014

A TenTec 705 microphone into the OMNI-VII with the TX ROLL OFF set to 150 Hz 
and TX BW set to 3400 and TX EQ 0 dB driving a Titan to 300 W (on peaks) is 
said, on the local 160 AM net, to sound just exactly like I do face to face. 
The transmitted pattern as seen on a FLEX-1500 in panadapter mode shows 
about a 18 dB roll off between 300 Hz and 3300 Hz not at all unlike the 
pattern of a commercial AM station.

73 ES DX,
Gary -- AB9M

-----Original Message----- 
From: R. Eric Sluder-W9WLW
Sent: Tuesday, February 25, 2014 12:41 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] In praise of older technology AM transmit with TenTec 

I'm told that I sound acceptable for a non-boatachor using the Omni VII.   I 
believe the audio is adjustable on the O7 using the AM mode, but I haven't 
tried real hard to improve my audio any.  Since we're on the topic, I'll 
give the Eagle credit where credit is due.  I'm always complimented on how 
well I sound using the Eagle.  I use the same mic for both rigs (TT 709). 
I check into an AM net on Friday evenings and us an AL-80a for extra kick, 
and some of the fellas are hard pressed to believe I'm using a modern rig. 
:-)  The others usually talk about it later when the frequency switches back 
over to SSB.  You hear them talking about how well the Eagle sounds and you 
can tell they're mulling over looking into getting one.

- R. Eric Sluder


> From: Mike Bryce <prosolar at sssnet.com>
>To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
>Sent: Tuesday, February 25, 2014 1:04 PM
>Subject: Re: [TenTec] In praise of older technology AM transmit with Ten 
>Tec rigs
>I’ve used my Omni VII on AM on 7.290 and they say it sounds great. It does 
>lack the punch of the heavy iron guys,
>I run a Centaur amplifier for some added kick, sometimes 40 meters and AM 
>don’t play well together.
>Mike, WB8VGE
>SunLight Energy Systems
>The Heathkit Shop
>J e e p
>A man with one clock knows what time it is. A man with two clocks is never 
>On Feb 25, 2014, at 12:50 PM, k6jek <k6jek at comcast.net> wrote:
>> I haven't really tried the OMNI VII as an AM transmitter since I have 
>> others -- class E, class D, Johnson, etc. I wonder if anyone on this 
>> reflector has.
>> Jon
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