[Elecraft] W1 idea

[Siu Johnny]

Hi Pete,

K2 is a QRP rig and can deliver output power at around 0.5 watt.  Itself 
has already been a nice RF signal generator.  Turn your K2 power knot fully 
counterclockwise.  Press and hold 'tune' and read the SWR on the W1 over 
the tuning range.  Due to the lower power output from K2, interference to 
other Ham stations is minimal.

Unlike the LP100, W1 is not a vector watt meter.  It can only give you 
reading of SWR and Power.

In the past, I have several times in this reflector mentioned that a 
transcevier with TCXO or stable frequency output has already been a very 
good RF source. The trick is to use a good RF attenuator or directional 
coupler to lower the output level.  Now AT1, CP1 could be choices.

I finish the construction of AT1 which is a piece of cake.  Unlike the 
usual attenuator obtained from the market, AT1 can tolerate 2 watts RF 
power.  If you combine K2 with AT1, the whole will be a nice RF signal 
source.  Of course, don't forget to turn the RF power knot fully 
counterclockwise.



73

Johnny Siu VR2XMC

From: <wd4lst at windstream.net>
To: <Elecraft at mailman.qth.net>
Subject: [Elecraft] W1 idea
Date: Tue, 12 Dec 2006 11:33:50 -0600

It would seem like you could combine the W1 with a small DDS based sig gen 
for a very compact basic antenna analyzer. Is it sensitive enough on the 
lowest scale to do that?
Just thinkin....
-Pete

Pete Axson
WD4LST
17901 NE 18th Ave
Citra, FL 32113

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