modifications in TKR-820

chinesegoldfarm · #1 (**permalink**) 09-28-2012, 10:13 AM

Hi all, I want to know which modifications need to be done to repeater TKR-820, in order to work propertly with the rebanding coming on January 1st of 2013, specified by the FCC? I have been told that it need to upgrade some hardware in it.

Thanks so much

cabletech · #2 (**permalink**) 09-28-2012, 7:07 PM

You should not have to mod any thing inside the radio. it is all done in the software.

Be advised that there where two models of this radio, the tkr820 AND THE tkr820N, The N says that
it is able to be narrow banded on the 12.5kz frequencys.

Look at the radio data plate and see what it says, then connect to the computer and read the radio then you should see a option for W-N. change to N and your good to go.

gewecke · #3 (**permalink**) 09-28-2012, 7:15 PM

Quote:

Originally Posted by chinesegoldfarm

Hi all, I want to know which modifications need to be done to repeater TKR-820, in order to work propertly with the rebanding coming on January 1st of 2013, specified by the FCC? I have been told that it need to upgrade some hardware in it.

Thanks so much

There's info on the TKR-820 here,

Welcome to Repeater Builder Dot Com

73,
n9zas

chinesegoldfarm · #4 (**permalink**) 09-29-2012, 10:52 AM

I don't remember if my repeater is the N model, I'll check it out.

Thank you so much both, very helpful link gewecke thanks

pddispatcher · #5 (**permalink**) 09-29-2012, 12:56 PM

I have a TKR-820 thats been modified to do narrowband but can't find the programmer anywhere, anyone have one laying around they'd like to sell?

Since alot of my local ham guys use public safety stuff we are going to put it on 70cm narrowband for a ham repeater.

cabletech · #6 (**permalink**) 09-29-2012, 1:26 PM

You do not need a "programmer" for this radio, just the correct software and a cable is all you need.

Can find the cable on e-bay and maybe the software also.

AND, why are you planning on doing a ham narrow band repeated? The ham, aircraft and marine frequency's are not required to go to narrow band.

pddispatcher · #7 (**permalink**) 10-02-2012, 12:49 AM

Because this repeater has been modified for narrowband and is now an 820N, I know its not required however this area has very few people that has the capabilities to get any repeater on the air so while it is a narrowband repeater on 440 mhz its better then nothing and I only have $50 bucks in it so we're going to use it and try to get some activity out of it.

n7maq-1 · #8 (**permalink**) 10-04-2012, 9:29 PM

Quote:

Originally Posted by cabletech

You do not need a "programmer" for this radio, just the correct software and a cable is all you need.

Can find the cable on e-bay and maybe the software also.

AND, why are you planning on doing a ham narrow band repeated? The ham, aircraft and marine frequency's are not required to go to narrow band.

The TKR-820 DOES require a "programmer", the KPT-20, or KPT-50. There is also older DOS software (KPG-21 IIRC) that will work with the KPT-50 to make things a bit easier for some. The KPT-50 is a very easy to use programmer, and it is much better than lugging a laptop.

If needed I can program the TKR-x20's, PM for details.

Jim

pddispatcher · #9 (**permalink**) 10-06-2012, 6:45 PM

Does the TKR-820/720 offer CW ID?

gewecke · #10 (**permalink**) 10-07-2012, 2:36 AM

Quote:

Originally Posted by pddispatcher

Does the TKR-820/720 offer CW ID?

Yes, but not a good one. Here is some info that may help,

Kenwood Supplemental Information 7

Integrated Control Systems

73,
n9zas

MikeMercury · #11 (**permalink**) 01-10-2013, 11:58 AM

Quote:

Originally Posted by cabletech

You do not need a "programmer" for this radio, just the correct software and a cable is all you need.

there's a lot you apparently don't know.

There's no need to offer a "guess"; because out within cyberspace.... there are people that don't need to guess.

There is a specific Kenwood programmer needed. The software you see listed on the internet must be run with the KPT-50 handheld programmer. It's not "just a cable and a PC program" In reality, it's a cable, PC, and a mfgr specific programmer.
The other programmer is the KPT-20, it's a standalone device - and does not require connection to a computer.

Quote:

AND, why are you planning on doing a ham narrow band repeated? The ham, aircraft and marine frequency's are not required to go to narrow band.

uhh... D-Star is narrowband; and it's ham.

For program options and accessories, see

The TKR Guy

.

MikeMercury · #12 (**permalink**) 01-11-2013, 9:52 AM

Quote:

Originally Posted by cabletech

You should not have to mod any thing inside the radio. it is all done in the software.

100% incorrect.

The TKR-720 and 820 are not "software" narrowbandable.

It's a hardware mod; using a Kenwood "Z-Kit"