KX1

[Ed Lambert-2]

I moved into a new house in the beginning of September and finally got on
the air from the kitchen table with batteries, an inverted v on the deck and
KX 1 1492. It is still a total delight.

 

I manage to get 2.5 to 3.0 watts out of it on 20 M with 12.8 volt supply. I
wonder how many on the reflector get 3.5 to 4.0 watts as specified so I can
figure out if I want to dig into it and tune the inductors and transformer.
I really don't want to do that unless most of you get the higher powers. I
can have many enjoyable qso's at the lower powers and don't want to ruin the
rig by tearing into it.

 

I will see if Kevin R can hear me this evening on 20.

 

Ed Lambert, KD3Y

K2 1999

KX 1 1492

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[k6dgw]

Ed Lambert wrote:

> I manage to get 2.5 to 3.0 watts out of it on 20 M with 12.8 volt supply. I
> wonder how many on the reflector get 3.5 to 4.0 watts

I get anywhere from 3.7 to 4.1 watts indicated into my Buddiepole on 20m
using a 12V gel cell or 2 6V lantern batteries in series.   (I have the
auto tuner).  Output does vary some between the bands, with 30m being
about 3.3W and 40m 3.6W.

73,

Fred K6DGW
Auburn CA CM98lw
KX1 #897
K2/100 #4398


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[Vin Cortina]

Ed,

I too get only about 3W on both 40 and 20.  I have not yet installed an
80/30 kit, so those 2 are all I have.  I wondered about it, but never got
around to doing anything.  I am curious though...


Vin  KR2F


----- Original Message -----
From: "Ed Lambert" <[hidden email]>
To: <[hidden email]>
Sent: Sunday, October 29, 2006 9:42 AM
Subject: [Elecraft] KX1


>I moved into a new house in the beginning of September and finally got on
> the air from the kitchen table with batteries, an inverted v on the deck
> and
> KX 1 1492. It is still a total delight.
>
>
>
> I manage to get 2.5 to 3.0 watts out of it on 20 M with 12.8 volt supply.

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[Ken Kopp-2]

Perhaps some caution about the accuracy of wattmeters
might be in order. Might be unwarranted concern. (:-))

73! Ken Kopp - K0PP
[hidden email]
or
[hidden email]

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[Ed Lambert-2]

I get consistent power measurement results using a Fluke DMM and Elecraft DL
1 and an o'scope connected to the DL 1. I triple check with a calibrated HP
signal generator checked against my KX 1 attenuated to match the HP
generator. I am pretty confident in my measurements.

I have received many replies and the great majority has outputs similar to
mine. Only a few reported the higher power output. It would be interesting
to know what the prototype results were. Although, I am sure that is where
the specs originate

Ed Lambert, PE
KX1 1492
K2  1999

> Subject: Re: [Elecraft] KX1
>
> Perhaps some caution about the accuracy of wattmeters
> might be in order. Might be unwarranted concern. (:-))
>
> 73! Ken Kopp - K0PP


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