Re: [Amps] *** SPAM *** Re: Alpha 87a

[Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>]

Tom said:
>Currents on the 
shield can't change SWR inside the cable <

This is very true: however, what they can do is to change the indicated SWR, 
depending on the SWR meter. So you can have a cable that in reality has a 1:1 
SWR, but has an indicated 1.5:1. This fact is not always appreciated..
For many SWR meters, the 'S' is like the 'S' in 'S' meter - it stands for 
'suspicious'!
One advantage of a tube PA in the exciter is that the pi network handles a lot 
of these problems...........
73
Peter G3RZP
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