cb info please

just lookin at a 2nd hand harrier cbx fm radio..

it comes with a 35w kicker and a 10w dropper???... what the hell r these and do i need em if i fit the cb into my disco1..

there all mounted on a board with an external speaker.. so looks bulky and would kno where to put most of it....

cheers....

CBX Harrier was /is a good Radio,
Kicker is a booster if you aren't getting the range /
dropper dropps the wattage
if i'm wrong some will correct me
I would take them of the board so you fit how you want them.

The most important part of the setup is a decent Aerial
on a good ground like the roof Mine is on the light bar with my spots
When i had a Harrier it worked perfectly ok on its own

thanks....

why would ya wanna drop the watts?

sory, kno nothin bout cb's...

Have no idear
The only thing i can think off some Trucks are 24 volts cars are 12

I'm the same all i know is how to fit them and use them and how to swr them
some users used to talk about boots and liners and burners straight over my head

some one will be along soon that can answer

well i'v espent half my life on here since i got the disco... and the other half under the bonnet.....


i can wait...ha ha ha ha....

thanks....

No worries mate
yep Im gonna be doing bits to mine inthe next week or so Full service and all that and it's all the fun of a Landy haha

well some boosters need lower than 4 watt to boost up but not seen many might be 24v drop to 12v ?

if you use the power amp to transmit more than the legal 4watts you can be find and the radio and every thing else inclueding your motor can be seized and crushed

Boosters came over here at the same time the original cb did. It was AM back then and the range wasn't great. Many people fitted amps (boosters) to increase the output from a few watts to 10,20,50 or even a few hundred watts. The range increase was pretty good but you have to remember that the increase is not linear.

If you have a 10 watt radio and want to increase the performance by 100% you do not double the wattage... you multiply it by 10. So 100 watt radio is twice as effective as a 10 watt one.

Most of the time these enhancements are not necessary in our motors because we use them primarily for keeping in touch with other motors who are close by...certainly within a mile or two.

When CB became legal the government had a problem. Thousands of us were using the illegal rigs imported from the states and operating on 27 Mhz AM. If they legalised this system then they would lose out on much tax. Instead they commissioned an FM system. Fm has advantages over AM in areas like range and clarity...(just listen to an AM radio station and then return to FM if you don't believe me!

No one worries about burners and boosters any more. The legal limit on your rig is 4 watts. Depending on location and terrain this should give you an effective range of five to ten miles... more if you are high up.

If you need better range get a booster.

The attenuator switch drops the output of the rig. Originally from 4 watts to half a watt. It means that you can be sure that you are not going to interfere with other radio equipment if you are chatting to someone close and do not need the extra power. It will not affect the reception... only the transmission effectiveness.

You need to consider what you want from the rig before you install the antenna. Placing the antenna at therear of the vehicle will ensure that the shape of the wave created pushes most of the signal forward... useful if you are usually at the back of your group. PLacing it at the fron has the opposite effect. The wing or light bar are usually favourite but bear in mind that aluminium does not count as an earth or groundplane and if you mount the antenna on an ali surface then you must also earth the antenna to something big and metalic!

I won't start on about SWR in case you know all about it... but don't be tempted to run the radio without setting up the SWR because an incorrect setting can... and does blow your output transistor leaving you with only the very minimum output power.

Sorry bout the long post but I though it might be of use.

scarecrow243 said:

if you use the power amp to transmit more than the legal 4watts you can be find and the radio and every thing else inclueding your motor can be seized and crushed

Click to expand...

Scarecrow that simply is not true. Your vehicle can not be seized for using CB radio and it never has been able to. If your radio equipment is illegal then that can be removed but so few coppers know what they are looking at that there is no risk.

hi i did not say it could be taken for useing a cb radio i did say it for useing more than 4 watts uk legal limit unless you are usein amatuer radio with a licence witch i have,

if you check the net a ham opperator had all his gear seized and his van for causeing interference, you can cause interference useing cb radio aswell, i am only trying to help save anyone any hastle

The CBX in its day was in the top 4 or 5 CBs to have. Im sure its still up to the job.

swr? what's one of them...

my plan is... buy it.. fit cb and ext speaker.. fit a gutter mount to spare wheel carrier on boot and a 27mhz springer... bit of appropriate wire between the two and bobs yr preverbial uncle...

is that ok, or do i need to ground the spare wheelcarrier to the chassis....

thanks for all the advice so far..

Earth the spare wheel carrier if it as attached to an ali body...

SWR: Transmitting your signal causes a standing wave to be created. If your antenna is the perfect length the ratio of the wave will be 1:1 and all you power will be transmitted. The more the ratio increases the more power is reflected back into your rig.. when too much is reflected the output transistor blows.

Use a SWR meter to check the ratio and trim the antenna length.. there usually is a little grub screw for doing this. Take readings on channels 1,20 and 40. Anything below about 1.5:1 is acceptable but the lower the reading the more power you will transmit.

i see... makes sense... see if i can find a swr meter...

cheers...

one of the laners near to you is bound to have one...if not they are not expensive

I've been reading all cb threads.. decided to learn more..
aquired a bit of pocket money today so ordered a midland 98+ wiv all the bits, inc meter £98 wiv 24 hour delivery... just gotta find time to fit it b4 sat...