SOLD - 2005 | WK | Khaki | 3.7 | QT1 | OME HD Front Struts | Rusty's 2" lift in Rear w/ Monroe load levelers (F150 version) | 265/70 Nitto Terra Grapplers | 17" Moabs | 1.5" wheel spacers | Pinch weld mod | Rear fender trim mod | 4xG Matrix w/ reciever hitch | 4xG Belly guard | SOLID Diff cover | Cobra CB radio | 4xG CB radio antenna mount
Ryan ---- 2006 WK 4.7 QDII <- Click for Garage
2.25" RR Lift - Front Bilstiens - Rear OMEs - 32" Wildpeaks - Saguaro 4x Shackles - Tail Light Guards - AFE intake - Rola - Exhaust
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Tuning definitely is a must. (Here comes a radio lesson!) I've tuned peoples rigs for them and their ability to transmit went from 3/4 mile to 8 miles. (Thats one of the more extreme cases but nevertheless a true story).
Keeping in mind that a 27mhz AM radio (what a CB really is) at 10-12 watts (yep that's what you got to work with Limited by the FCC in 47 CFR 95.667 to 10 watts) doesnt get very far under normal conditions for a few reasons.
Reason # 1: 27 mhz is almost always under quite a bit of atmospheric noise caused mostly by the sun so a stronger signal is needed to overcome that.
Reason # 2: 12 watts AM actually is only 4 watts out because there is a carrier(the center signal that propigates the USB and LSB) that receives 4 watts, and the upper and lower sideband that make up the audio that get about 4 watts each. For you guys with an SWR meter you should have noticed that you have somewhere between 10-15 watts reading total power which is the sum of the three parts of the AM band.
Note: Some CB radio boxes are misleading people by saying that you get 7 powerful watts of audio with their radio. Some think that that means transmit power but actually only means that you have 7 superb watts powering the speaker on the radio nothing more than that.
Now if you don't tune it up really nice some of the power gets reflected back down the ground side to your radio and vehicle chassis cause it can't efficiently leave the antenna (at the right part of the SIN wave). Not only bad cause you lose part of those 4 watts but it can also cause Radiation burns if it gets back to your radio (usually coming from the metal mic mount button on the back of the mic thats also part of the ground system in the radio).
Good luck on the tuning!
Last edited by superacerc; 04-13-2012 at 07:27 AM.
2007 Commander 4.7L, QTII, OEM Towing Option, tow hooks, 2"OME + 1/4" rusty's leveling spacer, Bilstein 5150 Rear Shks, Rear sway bar removed, 4xguard front skid, Offroad Unlimited Defender Roof Rack, Hella 500FF lights, 265/70/R17 BFG KM2 M/Ts 1.5" Rough Country Wheel Spacers
http://www.theultimatejeep.com/showt...acerc-s-Garage
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