TS 830 Power Reduction

[KM1H]

That is cool Carl.

I know a lot of the transverters use a lower input.

I wonder how Linear and clean the output is ?

I have a 520 and 830 and never really needed to reduce the power so low.

In the mid -40's for IMD3 but the loafing 4CX250R in the transverter is only about -35 at 125W out.

The 830 is class A up to the 12BY7 so there is no IMD sweet and poor spots as on an all SS rig as you vary power. Most SS 100W rigs are cleaner at 80W but poor at 50W for example.

Carl

[VK2OZ]

I do not think 10 watts is ridiculous after all the licence is so easy to get virtually no knowledge needed.
If people feel the way you do i think it was better to keep the old novice licence which i supported in it's inception entirely but scrap that evil cw requirement .
I would like to know how many foundation calls run 10 watts and the advice given to him to limit the power in the way suggested is not without fault circuit modification is the only way to do this .
I praise the f call for trying to do the right thing at least he is one of the few trying i wish him success .
73's.
Mike.
VK2OZ.

[VK4TI]

For the CW operations you would turn the CAR control down to the power output you want. This is after you have properly tuned the TS-830S up for transmit.
For SSB you would usually lower the MIC control so that the loudest sound will equal the power output you want. If something louder occurrs the TS-830 will put out more power then what you adjusted for. This would be a problem if you live near a jet engine testing factory. Another method is to use an external voltage supplied to the ALC connection. This would be a negative voltage and you need to vary it from 0 to about -6Vdc. Putting a single tone to the microphone that would be equal to or louder than your speaking voice and key the rig. Adjust the external ALC voltage until it equals the power output you want.
I'm wondering what power level you're wanting to use?
Hope this helps
73
Gary

Best thing is speak to your local radio club or local ham who understands old gear , dropping the screen some and dropping vereal other things will result in he desired power , there used to be a 30 watts howto floating about for the novices