I found two each 50 Ohm and 100 Ohm 10W power resistors at Radio
Shack. One measured 48.9 on the DMM. The 100 Ohms I put in
parallel to get 50 Ohms, measured at 49.0 Ohms.
How much difference is 1 Ohm going to make as to SWR? I looked in
the 1990 handbook, but can find no way to calculate SWR based on two
readings (ideal vs. actual). One is mounted to a coax stub, the
parallel 100 Ohms is in a box. I know I'm adding some reactance by
using the parallel, but will the SWR still be OK?
Also, how much power out can I reasonably expect to use these two
dummy loads? I would suppose the 50 Ohm 10W would be good for 10W
continuous. Will the parallel 100 Ohm 10W give me 20W power
maximums?
Thanks for the help. I'd be interested not only in the answer, but
also the math involved if someone has it available.
72 es 73 de
Marty, KM7W (x-KN4BH)
____________________________________________________________________
Jackson, Tennessee e-mail: mdwatt@usit.net
http://www.public.usit.net/mdwatt
"The Curmudgeon's Corner"
ARRL VE - QRP ARCI #7514 - QRP-L #953 - AK/QRP #098 - Grid Sq EM55oq
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