How do I build a repeater?

losangelescop · Post by **losangelescop** » Fri Jun 23, 2006 4:58 pm

Hi all, i would like some info on how to build a repeater myself, what i would need, expected prices (probs gunna get it all 2nd hand off of eBay). i need between 16-40 channels and it needs to be UHF high split, anything that would accommodate 476-477MHz, such as the 450-512MHz radio bandsplit. thanks for any help, its appreciated.

Tom in D.C. · Post by **Tom in D.C.** » Fri Jun 23, 2006 5:38 pm

Under what FCC service/license would you be operating?
Why the need for so many channels?
More details needed before anyone could even begin to
help you with this project.

losangelescop · Post by **losangelescop** » Fri Jun 23, 2006 5:43 pm

hey, no FCC licence required, i live in Australia and i am operating on the public frequencies, there are 40 channels on our public frequencies so i kinda figured i would want them all incase i want change the public channels we operate on. BTW we will be using Motorola GP328 Portable Radios, which is Australias version of the HT750. i would probs need communication to cover a wide area, about 45.5 square miles. thanks

Will · Post by **Will** » Fri Jun 23, 2006 10:25 pm

Australia is even more strict than the FCC here in the US.

ALL radios used MUST meet and be listed in the register.

The repeater HAS to be licensed even tho it is on the Aus CB service.

IIRC, the max power is 25 watts for fixed stations/repeaters.

Check the regulations out first.

losangelescop · Post by **losangelescop** » Sat Jun 24, 2006 5:04 am

ok thanks for the major info. heres another idea that i had....i was thinking that i could have just a regular base station, but would the base station even amplify the signal and pass it on? or am i totally incorrect and will that not even work????

thanks....

mr.syntrx · Post by **mr.syntrx** » Sat Jun 24, 2006 7:23 am

Max power for a UHF CB repeater is 21W EIRP.

A base station, as in a fixed radio in your house, won't amplify anyone's signal. You'll be limited to 5W like a mobile radio, but you'll have an advantage of being able to install a superior antenna to what you'd find on a vehicle, portable radio etc.