[Elecraft] Re: KX1- 80m and random wire

wayne burdick n6kr at elecraft.com
Mon Feb 27 12:44:08 EST 2006


Only if you roughly triple all of the L and C values in the ATU. This 
would of course sacrifice tuning performance on the higher bands. A 
better alternative would be to either use a longer wire on 80 m, or 
insert an inductance in series with the wire. Some experimentation will 
be required.

Then there's the T1  :)

73,
Wayne
N6KR


Pierre Desjardins wrote:
>
> For field operations with a KX/40.30.20m, I currently use a 28 feet 
> random
> wire at the end of a 22 feet pole, and an single 16 feet radial on 
> ground.
> The computed impedance is 89 - j 341 ohms  at 7 MHz,  matched by the
> KXAT1.
>
> However, at the low end of 80 m, it should be around 54 - j 1316 ohms, 
> giving very high SWR. Can the ATU match such values?
>
>    72, de VE2PID
>    KX1 s/n 442
>    K2/100 s/n 5170

---

http://www.elecraft.com



More information about the Elecraft mailing list