This used to be called controlled carrier modulation. It was a feature
of cheaper rigs in the 1960's like the Knight T-60 and the Heath DX-60.
It seems to work pretty well, and is a whole lot cheaper than plate
modulation.
Steve WA9JML
On 2/21/2011 4:50 PM, Ron Castro wrote:
> As much as it will allow you! Mine makes only about 16 Watts carrier if
> there is no audio. However, there is an interesting feature in the Orions
> where the carrier power actually increases as modulation increases, so the
> practical result is that you can get 100 Watts PEP, and 25 Watts carrier,
> but only for a few seconds, then it cuts down the power when stop talking.
> At any rate, the finals are rated for a lot more power than that, so it's
> safe any any level.
>
> Ron N6IE
> www.N6IE.com
>
> ----- Original Message -----
> From:<kc9cdt@aol.com>
> To:<ronc@sonic.net>;<tentec@contesting.com>
> Sent: Monday, February 21, 2011 1:12 PM
> Subject: Re: [TenTec] Orion II transmit equalization
>
>
>> How much power can we run on the OII safely in AM mode?
>> Thanks,
>> Lee
>>
>>
>>
>> -----Original Message-----
>> From: Ron Castro<ronc@sonic.net>
>> To: Discussion of Ten-Tec Equipment<tentec@contesting.com>
>> Sent: Mon, Feb 21, 2011 3:34 pm
>> Subject: Re: [TenTec] Orion II transmit equalization
>>
>>
>> There is a distinct difference in the monitor sound of AM vs. SSB that I
>> have noted for some time on the "Fix List" on my website. It sounds more
>> like the sample rates are different with AM getting the short-changed by a
>> few dozen kbps! I could be wrong about that, but they do sound different.
>> The good news is that the actual on-air AM audio is fabulous and is better
>> than some AM broadcast stations I have heard.
>>
>> Ron Castro
>> N6IE
>> www.N6IE.com
>>
>> ----- Original Message -----
>> From:<Rsoifer@aol.com>
>> To:<jhenry@tentec.com>;<tentec@contesting.com>
>> Sent: Monday, February 21, 2011 11:31 AM
>> Subject: Re: [TenTec] Orion II transmit equalization
>>
>>
>>> John,
>>>
>>> Further to my earlier email, I ran some more tests, listening to
>> myself on
>>> an external receiver (actually, an Argonaut V). The difference in
>>> equalization between AM and SSB did not show up there; both sounded
>> fine
>>> with TX
>>> EQ set to 0 dB. However, the difference was still there on the
>> Orion
>>> II's
>>> internal monitor, with AM sounding more bassy than SSB by about 7
>> dB.
>>> So,
>>> it seems to be a monitor issue rather than a TX EQ issue. I don't
>>> understand how and why that would happen, but there it is.
>>>
>>> 73 Ray W2RS
>>>
>>>
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|