RE: [Elecraft] W1 idea

2006-12-12 Thread 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: [EMAIL PROTECTED]
To: Elecraft@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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Re: RE: [Elecraft] W1 idea

2006-12-12 Thread wd4lst
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 [EMAIL PROTECTED]
 Date: 2006/12/12 Tue PM 06:59:26 CST
 To: [EMAIL PROTECTED],  Elecraft@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: [EMAIL PROTECTED]
 To: Elecraft@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
 
 _
 ??  Live Messenger; 
 http://get.live.com/messenger/overview 
 
 

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

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