[TenTec] Solid State Amps

Bill Fuqua wlfuqu00 at uky.edu
Mon Dec 8 11:19:49 EST 2003


>
>      (4) The amplifier is sold by an amateur operator to another amateur
>      operator or to a dealer.
>
>      (5) The amplifier is purchased in used condition by an equipment
>      dealer from an amateur operator and the amplifier is further sold to
>      another amateur operator for use at that operator's station.
>
>So technically you can't use an non-type accepted amplifier built after 
>April 28, 1978
>if it is bought from a non-ham or from a vendor that bought it from a non-ham.

  Now, after saying that I am sure that the FCC overlooks numerous cases 
where used equipment is
purchased that amateurs make amplifiers from or military surplus equipment 
is purchased for
amateur use.

However, one should suspect amplifiers built for the CB crowd to be of poor 
quality. They often
rate the power output 2 times or  more greater than real PEP power as 
defined by the FCC.
What they (CBers) refer to as PEP Bird watts is the peak voltage squared 
divided by the load resistance.
This gives them twice the real PEP figure.  Some even claim to get 1KW PEP 
from a single 4CX250B amplifier.
Which is an outrageous claim.
Also, the lack of harmonic filters to reduce spurious emissions is a real 
problem as well.
Many break into oscillation while in use.

73
Bill wa4lav



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