[Elecraft] K2 - 160m -3 Watts - 3 Amps

Tue Mar 5 19:07:01 2002

Ami Pierre
If you have some kind of antenna analyzer that will let you look at
reflected power/swr, try this.

Disconnect the 160m option and remove it from the K2.  At the PA end of the
low-pass filter, temporarily solder a 51 ohm resistor.  Connect your
analyzer at the antenna end of the LPF and see what reflected power or SWR
you see as you sweep across the 160m band.  I had to remove a few turns on
my toroids to get the optimum response.
73, Bob N6WG

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Pierre Fillinger
Sent: Tuesday, March 05, 2002 12:52 PM
To: Elecraft
Subject: [Elecraft] K2 - 160m -3 Watts - 3 Amps

On 160 m, with 3 Watts output, my K2 needs 3 Amps. I cannot increase the
output. I also noticed that the Volts/amps are not stable on the K2 display
(between 10.9 and 12.1 Volts) on this band.
Similar problem of instability of Volts/Amps on 3.5 MHz, but on this band
max power is 11 Watts
On all the other bands power Volts/Amps are stable, power 12 Watts or more,
for 3 Amps DC.

Any idea why the 160 has a so poor performance ? (I checked the
toroids/enamel on 80-160)

73 de Pierre F5MOG

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