CB noise from my inverter

[2xR]

Originally Posted by Powder Joints

I also drive 2007 Columbia and have been in Columbias since 2001. The factory radio connections overhead are ok for a 4 watt radio . Remember the more audio, and rf power requires more DC. As far as Monkey mades or Strikers they are good broadband antennas and really do not perform any better, just more band spread. The single most important thing is tuning your antenna. Second is quality of Coax and good conectors.

I run a Galaxy 95t radio (before the HAM's start yes I do have a amature extra class license so give it a rest) it is connected to the 12v bus under the inspection panel top of the dash passenger side, You will find 3 large connections on the right side of the fuse box, 1 is switched, 2 are hot make sure you use a fuse as close as possible. Any doubt here refer to your companies mechanic for connection. The ground is connected to the cab near the door frame with a sheet metal screw and a external/internal lockwasher. My antenna is mounted on the chrome bar that runs across the back of the sleeper. I use a Wilson 2000 thats is tuned to a flat match on 27.185. My choice of antenna cable is RG142u its is silver and 95% ground coverage(make sure your connectors are soldiered correctly not crimped). Regarding grounds in a Columbia (probably any freighliner) It is critial that you remove the ground cable from the frame (behind the batteries) clean the paint off the frame and replace the ground cable. I use a conductive grease to ensure I have obtained a good electricial connection that will not corode. Be careful if you use this grease it is conductive. Also make sure your other grounds a clean and secure (engine to frame, engine to alternator, and cab to doors).

I also have 2 intervers a 200 watt cobra for my computer, and a 2500 watt Tripp w/ shore power option (meaning it will also charge the batteries when plugged into 110v).

I do not have any noise problems at all even when everything is bring used. When chasing downn noise problems you have to determin what is generating yje noise before you start throwing money at the problem. If its a bad ground all the filter and caps in the world will not take it back out. If its bad doides in the alternetor fix the alternator, If its the inverter get the interver repaired, etc...

Originally Posted by markthetrucker

Dude it's strait to the battery for you! or try to look in you manual and see if you can find an extra power source in your fuse box. There should be several extra, unused 30 amp junctions there. Plus make sure your not crimping your coax in the door or window.

Wow! Now I've got a nice little "to do" list. That is very helpful knowing where to find a higher amp 12v source without going direct to the battery box. Thanks.

I use an old, tuned up Galaxy 88 and just used the CB hole power source because it was convenient, and made for a clean install. I haven't even checked the SWR. I just plugged and played. It was good on the Volvo and except for the mount, everything looks about the same. No one complains about the quality of my broadcast, in fact I get compliments, so I figured it was pretty close.

I take it there shouldn't be a problem with the mirror mount being an adequate grounded plane? I have a special stud I used on Volvos that overcame their plastic crap and provided the GP I needed.

I'm gonna' work on that list ya'll gave me. I'm tired of being an alligator (all mouth, no ears).

[roadkill439342]

Originally Posted by vino

I have a 150 watt inverter that i use to power my laptop. When it is on, i have a lot of noise on my cb. Is there anything i can do to fix this?

GROUND LOOP ISOLATOR on the power side of your CB.
Can buy one at Radio Shack for a few dollars.

[okron1k]

same thing happens to me. except i run a 5000 watt inverter, i have a mini fridge, microwave, tv, xbox 360, mac mini computer, vacuum and a home air conditioner mounted to the back of my cab.

i find when i use the microwave the noise really kicks in.. but other than that.. it's not bad. if you don't want to do anything... while your laptop is plugged in just turn down your RF gain to about half or until the noise gets down to a level you can tolerate. turn it back up when you are done charging your laptop.