----- Original Message ----- 
From: "Phil Scovell" <[log in to unmask]>
To: "Bob Martin" <[log in to unmask]>
Sent: Wednesday, May 27, 2009 4:44 PM
Subject: Re: SWR Readings With LDG TW-2 on 430 - 450 Band


> Ambient air surrounding the antenna, static build up due to wind speed and 
> humidity content of the air passing over the elements, current level of 
> humidity, temperature changes, possible power lines in one given direction 
> verses another even if they are many yards away, trees even if many yard 
> distance, moisture build up inside the antenna tubing, to name a few.
>
> Phil.
> K0NX
>
>
>
>
> ----- Original Message ----- 
> From: "Bob Martin" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, May 27, 2009 4:24 PM
> Subject: SWR Readings With LDG TW-2 on 430 - 450 Band
>
>
>> Quite often, I don't get exactly the same SWR reading when taken back to
>> back transmitting FM on the 430 to 450 band.  If the antenna was close to 
>> an
>> object, I would figure antenna movement caused by wind.  The antenna is 
>> in
>> the clear by 50 feet.  Five measurements one after the other show 
>> variation
>> of 2 units, 1.5 and 1.7 etc.  At other times I do get 5 of the exact same
>> readings.  Any thoughts?
>>
>> Bob Martin
>> KC3FI
>>
>> EchoLink Node - 55127
>> Please visit http://www.wan-leatonks.net.
>>
>