[Antennas] 248ft dipole

Sun, 21 Apr 2002 18:57:36 -0400

Ron, all reactances have 'Q'. 'Q' is the ratio of energy stored,
1/2L*I^2, to energy lost, [I^2]*R. Therefore ALL Reactances have loss.
My tuner dissipates about 50-70 watts at 1KW input. 

If you have a high power station with a tuner, connect to a 4 to 1 VSWR
and then put the key down at 1KW for 1 minute then touch the active
portion of the inductor ... it's warm!!! That's 0.22 dB of loss, in my
tuner, converted to HEAT.

Dave, W1MCE, MSEE

Ronald KA4INM Youvan wrote:
> 
> > it is efficient!! your losses are in the tuner.
> 
>    I can't agree, if the losses in the tuner were great, the tuner
> would have a cooling fan in it like the PA transistors in your rig
> have.  Adding reactance is usually quite efficient.
> 
>        73 (= Best Regards) de: Ron [email protected]
>     100% LINUX, 100% of the time.   SENT Time and Date are UTC
>         Visit my HAM Web SITE at: http://www.qsl.net/ka4inm
> 
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