This discussion is getting interesting ... :)
JOHN MACKEY wrote:
>
> I would think that if you are talking about *CORRECTLY* tuning the
> Motran for continous duty that you would also be watching the
> current meter for the power supply feeding the 43MSN, looking for
> minimum current at the same time as watching for max RF power out.
Also true.
> I've never found either the LLT or the MSN motrans to be very
> diffult to tune. (although the LLT requires being a little more
> careful) Cetainly the MSN was a far better radio than the LLT.
There are three versions of the LLT transmitters:
U41LLT
U51LLT
U43LLT
The U41LLT uses a pair of M9116 PA transistors if I remember
correctly and put out 30 watts of power.
The U51LLT uses four M9116 PA transistors = 50 watts output.
The U43LLT is basically a U51LLT with a varactor tripler on the
output = 30 watts output.
> For tuning that can be a little tricky to do *CORRECTLY*, I
> suggesting attempting to tune of the of following transmitters:
>
> 1. UHF GE-Mastr Pro
The early or later model?
> 2. UHF Motorola HT-200
Quite a dream to tune ... if you like frustration ...
> 3. 150 MHz GE TPL
Ah ha !!! The ... Toilet Paper Line ...
73,
Neil
>
> ------ Original Message ------
> Received: Tue, 04 Jan 2005 12:05:43 PM CST
> From: Neil McKie <[EMAIL PROTECTED]>
> SNIP
> > After inserting the Channel Element on the correct frequency, and
> > tuning the exciter and following multiplier stages according to the
> > manual, you just leave it keyed and tune for maximum output power
> > on your Bird Wattmeter. Next?
> SNIP
>
>
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>
>
>
>
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