Question......
Why is it that some people say you need to add a 6" spring to a 102" whip in
order to match it? Could someone explain this?

If you do the math (234 / Freq. in MHz = 1/4 wave) it ends up being 103.29"
@ 27.185 MHz (CH 19 mid band) which if you add the mount, say a 1" stud plus
the insulators, it comes out pretty close to 103.29" not counting the inch
or so of exposed coax at the connection. I've never been able to add a
spring (rat shacks were shorter than 6") without having to cut about the
same amount off the whip in order to keep the SWR reasonable.
Thanks,
Bill

"Bill Standard" wrote in message
news:zv4jb.1990$iD6.1551@edtnps84...
Question......
Why is it that some people say you need to add a 6" spring to a 102" whip
in
order to match it? Could someone explain this?

I guess it varies according to the mount and vehicle.
In my case, the whip, without spring, was just about perfect at 28.400,
which is exactly where I wanted it to be.

Yes, maybe.

--

"Eric" wrote in message
news:cgNib.757812$YN5.731961@sccrnsc01...
Any suggestions?

Thanks,

Eric