[Elecraft] [W2] Waterproofing the sensor

Mike WA8BXN hubby2k at hotmail.com
Fri Jan 27 21:10:26 EST 2012


Hi Bill - 

Unless you are putting the amplifier remotely out with the tuner, then you
really don't so much care what the SWR reading is at the tuner in the coax
going to the shack. What you are more interested in is what the amplifier (I
assume in your shack) will see looking into the coax going to the
tuner/antenna system. 
 
You might try putting say 6 feet of coax from your K3 to the W2 sensor and
see how the swr looks there (in about the place in the coax the amplifier
might be). I suspect there may be some difference in readings. Next step is
to determine/understand why. 
 
73 - Mike WA8BXN 
 
 
 
 
-------Original Message------- 
 
From: Bill K9YEQ 
Date: 1/27/2012 8:29:05 PM 
To: k6dgw at foothill.net; elecraft at mailman.qth.net 
Subject: Re: [Elecraft] [W2] Waterproofing the sensor 
 
Fred, 
 
I agree with your comments. The only issue is the small spiders and the 
Damage they can inflict. I lost a trail camera due to spider droppings. 
Amazing the damage given a few years and the very super small openings they 
Used. 
 
I want the remote to determine SWR at the remote tuner which I use. In the 
Shack I get a reading which is not the same on the tuner at the remote. I 
Would like a remote before the tuner so I know what is coming back to the 
Shack. The K3 can tell me the SWR going out but it does not consider the 
Coax interaction. The THP HL-2.5Kfx is picky! :-) 
 
73, 
Bill 
K9YEQ 
 


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