[Elecraft] Slightly OT: non-resonant wires

Bob McGraw K4TAX rmcgraw at blomand.net
Tue Feb 9 15:22:27 EST 2016


I use a BOSCH laser tape obtained from the local hardware supply store.  
It measures to 250 ft, +/- 1/16".   The only challenge is to estimate 
the wire sag in measuring a long length of wire.  The laser is always 
measuring  straight line.  For shorter lengths, I stretch the wire tight 
on the floor of the shop or laying over reasonably level ground and 
shoot the laser along side.

In general hams will construct the antenna and then trim the length {add 
or subtract length}  to get the SWR value to 1:1 or such.

73
Bob, K4TAX


On 2/9/2016 1:38 PM, Lynn W. Taylor, WB6UUT wrote:
>
> Short of buying a 100 foot tape (or a longer one), what methods do 
> people use to reasonably accurately measure 53 feet (or 72 feet, or 
> 136 feet)?
>




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