Front end overload?

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nonperson

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I just installed a Kenwood TM 281A radio in my Dodge Ram club cab. I all ready had a Galaxy DX949 CB in the truck. The CB's antenna is an 102" whip mounted on the driver's side behind the cab. The Antenna for the 2 meter radio is a 5/8th wave Laird mounted in the center of the cab with a NMO and spring mount.
The problem is if I key up the Kenwood the signal meter on the CB pegs out rather or not the radio is on or off. Today I noticed on some frequencies on the 2 meter radio I get a little interference when I key up the CB radio. Not much but enough to notice. Should I be concerned? Any ideas on a fix?
FWIW I plan to move the CB antenna once I get a tool box. I will then mount that antenna (for the CB) to the rear and center of the tool box. I also plan to add a 70cm radio to the mix also with more radios on down the road. :) The console I made has room for one maybe two more radios if they are small enough.
 

n5ims

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What is your meter set on, SWR? If so what it's measuring is the amount of signal returned from your CB antenna to the radio and since it isn't transmitting the ratio (the R in SWR) is nearly infinate since you have 0 power out and getting power back. If that's the case it probably isn't anything to worry about.

The interference to the 2 meter rig from the CB probably isn't too much to worry about if you're running legal power on the CB. If you have a "kicker" than you may cause issues if it has fairly high power. 5 watts will be fairly low damage at the 2 - 3 feet between the antennas while 50 watts over the same distance may be an issue.
 

nonperson

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What is your meter set on, SWR? If so what it's measuring is the amount of signal returned from your CB antenna to the radio and since it isn't transmitting the ratio (the R in SWR) is nearly infinate since you have 0 power out and getting power back. If that's the case it probably isn't anything to worry about.

The interference to the 2 meter rig from the CB probably isn't too much to worry about if you're running legal power on the CB. If you have a "kicker" than you may cause issues if it has fairly high power. 5 watts will be fairly low damage at the 2 - 3 feet between the antennas while 50 watts over the same distance may be an issue.

Thanks for the reply.
Forgot about the meter setting... I have been running the CB with the SWR function on because of the temporary mount I'm using. But I have had a similar experience trying to run two base CB radios in the house. :) I don't think it's interfering with the reception because I was receiving some local traffic on the CB when I tired it out one time. The reception stayed the same and the meter on the CB pegged out but went back to normal when I released the PTT on the 2 meter radio. At the time I was programming the radio and seeing what repeaters I could hit.
BTW I don't have a "kicker" on the CB and "probably isn't much to worry about..." isn't very reassuring. :D I don't talk on them much but when I do, I want them to be functioning and performing at their best and not damaging one another.
Thanks !
 
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