[BC] Part 15 LPAM Questions?

[Jim Tonne]

> an emitter or source follower  [snip] would also be 
> able to handle the large capacitive reactance of the 
> short antenna.

The above statement is simply not true.  Period.   But
you can "buffer" the load with a series inductance.  If
you do that, see last paragraph here.

It is unfortunate that a short antenna will have capacitive
reactance and that emitter followers tend to go into
oscillation with a capacitive load.  For that reason, using
an emitter follower in an attempt to drive such an antenna
is not a good idea.  

As was pointed out, the problem is  *matching*  the 
impedance with a network because the required
inductance will be very lossy.  And, not pointed out,
is that the resulting final network will be very 
narrowband.

- Jim WB6BLD