[Elecraft] about 60m erp

Roy Koeppe k6xk at ncn.net
Thu Nov 12 07:30:47 EST 2015


“Kpa500 on 60 is illegal unless you have a *measured and
documented* VERY lossy antenna that would reduce the effective radiated
power to the same as 100 watts on a dipole. The simple 99 percent answer is
that on 60m SHUT OFF the Kpa500 and run 100 watts barefoot.”

Let’s see,

“antenna tuner” loss + coax loss = -1 dB

vertical ant “pattern loss” vs. dipole gain = –2 dB (antenna shorter than quarter wave)

“ground loss” under vertical ant (typical) = –2 dB

total, –5 dB, or around 250 watts or so from an amp for 100 w erp?

73,   Roy   K6XK 









More information about the Elecraft mailing list