[ARC5] AM modulating an "ARC-5" transmitter...

[Mark K3MSB]

>>Does that 60 W PEP mean 30 W fixed carrier and 15 W per sideband max when
modulating?

Wouldn't that be for a pure sinusoidal modulating frequency?

I don't think PEP is relevant to AM.   When I do AM I simply state the
carrier power I'm running.   If anything else, I'd state the modulation
percentage too, but my modulation meter is not working.  I'm currently
using just an SB-610 monitor scope.

I just got a T-17, so I hope to try my BC-456 out soon on AM.   Assuming
the T-17 still works, which I gravely doubt.     I think there's a way to
use a dynamic mic in a circuit meant for carbon mics -- I thought I saw a
thread on that some years ago.

73 Mark K3MSB


On Fri, Oct 9, 2015 at 9:16 PM, Brian <brianclarke01 at optusnet.com.au> wrote:

> Hello Ken,
>
> Does that 60 W PEP mean 30 W fixed carrier and 15 W per sideband max when
> modulating?
>
> How is that different from what the ARC-5 Tx can achieve? Or are you
> suggesting that CC modulation will give higher fidelity of the modulated
> signal? I would be interested in trying out your ideas.
>
> 73 de Brian, VK2GCE.
>
>
> On Saturday, October 10, 2015 11:49 AM , you said:
>
> Well, as soon as I can get to one of my hacked-to-ribbons-transmitters, and
> can refurbish one enough so that it will emit some RF, I intend to install
> a
> two-tube CC modulator.
>
> It looks more and more like the better way to go.
>
> Output should be around 60 watts PEP.
>
> YMMV.
>
> Ken W7EKB
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