I find that my Omni VII on AM sounds quite good. Almost as good as the
retried 1KW BC transmitter with its typical compression and limiting
equipment in the audio path. I run the Omni VII at about 20 watts out as
that is adequate to drive the amp to about 200 watts of carrier or about 800
watts PEP.
Speaking of amps on AM. First one should tune the amp to full rated output
using the TUNE mode typically at 100 watts and then switch to the AM mode
on the radio. DO NOT change any tuning of the amp while in the AM mode.
You still want the amp tuned for the rated PEP output even though the
carrier level is 1/4 of that value. Remember it is a L I N E A R amp
and should always be operated and tuned such it stays linear.
As to the Omni VII TX EQ........I don't care for the results. I prefer to
choose and use a mike that sounds good and use good mike technique to get
the best sound. Nothing external required.
73
Bob, K4TAX
----- Original Message -----
From: "k6jek" <k6jek@comcast.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Tuesday, February 25, 2014 1:44 PM
Subject: Re: [TenTec] In praise of older technology AM transmit with Ten
Tecrigs
Mike,
Please enlighten us with the settings. What power level do you run on the
OMNI VII? How about EQ? When I tried it once just recording using a dummy
load I thought I might need quite different EQ than I run on SSB. Sounded
muggy. I don't use anything external to the OMNI VII for audio, just a
microphonium and the unconventional OMNI EQ.
Jon
On Feb 25, 2014, at 10:04 AM, Mike Bryce wrote:
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
http://www.theheathkitshop.com/
J e e p
o|||||||o
A man with one clock knows what time it is. A man with two clocks is never
sure.
On Feb 25, 2014, at 12:50 PM, k6jek <k6jek@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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