[Elecraft] W1 idea

wd4lst at windstream.net wd4lst at windstream.net
Tue Dec 12 22:39:41 EST 2006


Good evening and thanks for the reply. I have already built the AT1, so the K1 would work (My K2 is under construction at the present). I have an old MFJ259 (no vector info, just SWR and impedance), but had in mind a small unit for very coarse antenna checks in the field, camping, etc. The mfj unit is bigger than the K1. I have been playing with AmQRP's PICeL kits and had DDS on the brain. Itching to build something that uses one (Iknow,Iknow, a KX1 <gr>)
-Pete
> 
> From: "Siu Johnny" <jcpsiu at hotmail.com>
> Date: 2006/12/12 Tue PM 06:59:26 CST
> To: wd4lst at windstream.net,  Elecraft at mailman.qth.net
> Subject: RE: [Elecraft] W1 idea
> 
> 
> 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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> 

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



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