If this of any help, this is from the Ten-Tec website and found in the
knowledge base:
Tuning instructions for AM Operation with the Onmi VII
Return to knowledge
base
1. Set the power output to the desired level. Key the transceiver with
the
microphone and the DSP will automatically set the
carrier to the proper level (this will initially take a few seconds). Peak
output of an AM transmitter is 4 times the level of the carrier, thus if the
power output is set for 100 watts, the carrier will be 25 watts, power output
is
set for 50 watts then the carrier will be 12.5 watts etc…
2. Speak into the microphone and adjust the microphone gain until
the ALC LED flickers on voice peaks. If
the microphone gain is adjusted beyond the point where the ALC LED flickers on
voice peaks, then
distortion can occur. It will be helpful to monitor the audio with the monitor
or an external receiver
3. Adjust the transmit roll off and transmit equalizer using the
monitor or an
external receiver for the most pleasing transmit audio. The microphone gain
might have to be readjusted for ALC after these controls
are set. Bandwidth is automatically set by the DSP. The
speech processor is not active on AM
Eric
W9WLW
>________________________________
> From: Bob McGraw - K4TAX <RMcGraw@Blomand.net>
>To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>Sent: Tuesday, February 25, 2014 4:49 PM
>Subject: Re: [TenTec] In praise of older technology AM transmit with
>TenTecrigs
>
>
>While I haven't measured it in some time, I seem to recall the info that
>Barry stated is correct for the AM mode.
>
>73
>Bob, K4TAX
>
>
>----- Original Message -----
>From: "Barry N1EU" <barry.n1eu@gmail.com>
>To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>Sent: Tuesday, February 25, 2014 2:37 PM
>Subject: Re: [TenTec] In praise of older technology AM transmit with
>TenTecrigs
>
>
>>I might be wrong, but I believe the AM tx bw is fixed (3KHz audio,
>> 6KHz wide am signal) and the bw and roll off controls are ignored in
>> AM.
>>
>> 73, Barry N1EU
>>
>> On Tue, Feb 25, 2014 at 8:03 PM, GARY HUBER <glhuber@msn.com> wrote:
>>> 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
>>> rigs
>>>
>>> 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
>>>
>>> W9WLW
>>>
>>>
>>>
>>>
>>>
>>>
>>>> ________________________________
>>>> From: Mike Bryce <prosolar@sssnet.com>
>>>> To: Discussion of Ten-Tec Equipment <tentec@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
>>>> 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
>>>>>
>>>>
>>>> _______________________________________________
>>>> TenTec mailing list
>>>> TenTec@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>>
>>>>
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>> _______________________________________________
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>>
>
>
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