Need help calibrating my SWRs

[MikeM86]

Hello all,

I'm new to this forum, and need help calibrating the SWRs on my antenna. Here's my set up.

Midland 75-822 handhelp radio
K30 mobile antenna

The antenna is mounted on my trunk lid. I can not mount it on the roof because I have a sunroof, and when open there isn't enough room for the base.

I'm trying to set the SWRs and have the following issue. On channel 1, the SWR is 1.3 and on channel 40 it's 3.25-ish. With the whip in it's lower most point. I haven't tried to shorten the antenna yet, because I haven't figured out how to shorten the length. The whip is to tough for normal wire cutters.

Would using a 4 inch spring help?

All suggestions are welcome.

Thanks

[MDYoungblood]

Hello MikeM86,
Welcome to the forum. Looking at what you wrote the antenna in too long so forget the spring. With a K30 start checking the SWR when the antenna whip is bottomed out in the base or load is what it is called. now checking the SWR should be done in a clear area free of any metals that may react with the checking process, doors shut, etc. With that antenna don't look for a perfect match, try to get the center of the band as low as possible and then balance out the ends of the band so they are reading the same. Any more advice just ask.
As a new member to the forum could you post a intro in the "Welcome to the Forum" topic, http://www.cbradiotalk.com/viewforum.php?f=89 , so others on the forum can say "Hi", thanks.

3's

Greg

[dgbacb4148]

Mike, welcome to CBRT FROM Georgia Dawg country, glad to have you.
David g.........