The Radio Information Board

TK-830h Repeater (tx side)


Ok, here is the run down, Customer has a TK-830h that he uses as his home(farm) radio, portable coverage is crap. all he needs is for the 830h to repeat everything the portable hears and send it to their normal working channel (and vice versa however he can usuall hear other radios but they cannot hear him)

I am going to setup a motorola gm300 UHF as a RX radio and will wire that to the kenwood to form a cheap repeater. I'll half the 830h power output and run both radios through a duplexer.

My question is, what pins on the kenwood do I wire to ?

on the 830h side I am thinking

COR(to ensure correct CTCSS[from gm300 ptt) PIN 4
PTT (to cos on gm300) PIN 8
RCV Audio PIN 9
MIC PIN 5
GND PIN 15

Would this be correct ?

Thanks in advance

I dont think you can legally do what you want to do. You just cant toss a repeater on any freq pair you like. You first need to be alocated a repeater pair. Then you can setup a repeater. Not in most cases your two mobiles WILL NOT meet frequency stability requirements and would not be legal in either case. While lots people sell back to back kenwood or back to back motrola radio's they are often not legal repeaters in many services. Thats the second issue you need to look at depending on the "band" that the user is in your repeater requirements will vary. You will most likely need some basic controller and IDer.

ohgary wrote:I dont think you can legally do what you want to do. You just cant toss a repeater on any freq pair you like. You first need to be alocated a repeater pair. Then you can setup a repeater. Not in most cases your two mobiles WILL NOT meet frequency stability requirements and would not be legal in either case. While lots people sell back to back kenwood or back to back motrola radio's they are often not legal repeaters in many services. Thats the second issue you need to look at depending on the "band" that the user is in your repeater requirements will vary. You will most likely need some basic controller and IDer.

ok, maybe I will make it clearer,

1. Customer owns several frequencys including several repeater pairs in vhf and uhf. there is no legal issues here.

Freq issues are easily solved with correct tuning.

Controllers etc are not needed at all, the base radio in the farm is a uhf tk830h, he simply wants to tx to it and for it to repeat what is transmitted. a very basic task. you don't need to id over your own freq's. i'm not talking about ham channels here

I already have MANY radios over here (GM300's that are linked back to back for exactly the same function) all I want to confirm are the correct pins to link to.

tracka wrote:Customer owns several frequencys including several repeater pairs in vhf and uhf. there is no legal issues here.

Customer doesnt own a frequency, he is assigned a freq, it may be share or may be dedicated. If he already has a repeater pair, what is the issue? Why isnt that being used? Just how big is the farm they have several repeater pairs? It also sounds like you wanted to link one simplex freq to another and thats not permitted. Unless the channels are licensed as a repeater channel you shouldnt be setting up a repeater on non assigned repeater channels.

Controllers etc are not needed at all, the base radio in the farm is a uhf tk830h, he simply wants to tx to it and for it to repeat what is transmitted. a very basic task. you don't need to id over your own freq's. i'm not talking about ham channels here

YOU NEED A CONTROLLER TO BE LEGAL.... While they sell back to back radio's on ebay every day, most are not legal. Most of the time the radio's dont meet repeater specs for frequency stability .005 vs .0025 need, Since we dont know what SERVICE your trying to repeater its hard to tell what you need. You do need to ID your transmitter. While people dont ID, it be legal you need to ID the repeater and depending on the service your users need to ID.

I already have MANY radios over here (GM300's that are linked back to back for exactly the same function) all I want to confirm are the correct pins to link to.

having a bunch of them doesnt make them legal. Depending on the radio service and license class you may or may not be legal.

I noticed from TRACKA's profile that he is in Sydney, Australia, so our FCC rules will not apply to him!!

I suspect they still have rules.

ohgary wrote:I suspect they still have rules.

I'm sure they do, but since we're talking about two different governing bodies, we have to idea what's legal or not legal Down Under.

ohbary,

there is no point me having banter with you, you obviously want to be right and me wrong.

We don't need to ID a repeater if you have private frequencies!.

you don't need any controller at all.

customer owns(is assigned) several freq's.

The current repeater pair IS already been used.

outback australia is massive!. basically farms communicate over an area of about 180kms. farms use high power units, usual 830h or motorola spectras. what the customer wanted was to simply be able to use a portable to transmit instead of running back inside the farmhouse. portables can hear the repeater fine just can't key it up.

anyway, ive built what is required, and it is working well. have a gm338 that is receiving/txing connected to the 830h. anything heard on each radio is re-transmitted over the other radio.

Thanks anyway.