From: Roger willey <kc4jnn@...>
Date: March 26, 2025 at 2:45:40?PM EDT
To: [email protected]
Subject: 6 m repeater antenna

?I have a 6 m folded dipole antenna, two of them with coaxial lines going to a T what length of cable should I use out of the T to get The impedance and the length? I was thinking maybe 35 Ohm

That basic issue is VERY common with software, especially Motorola software, of that vintage.
You need 32-bit, and generally a REAL RS-232 serial port. Some of these will work with certain USB adapters, but many won't.
On 3/26/2025 11:51 PM, Bob KK6RQ via groups.io wrote:

And, (it bears constant repeating) original Astro CPS will launch/run on both 64 and 32 bit Windows but it will only physically talk to the radio on 32 bit. Astro Tuner lets you select higher com ports but only actually works on 1-4.
_._,_._,_

And, (it bears constant repeating) original Astro CPS will launch/run on both 64 and 32 bit Windows but it will only physically talk to the radio on 32 bit. Astro Tuner lets you select higher com ports but only actually works on 1-4.
_._,_._,_

On Mar 27, 2025, at 2:13?AM, M M via groups.io <wa6ilq@...> wrote:

?

> I have a Kenwood TKR850 ver 2 and another one with is a TKR851. My question is:

> I have a serial cable I use to program the 850, and the KPG 91 CPS
> Will both repeaters use the same programming CPS and serial cable for programming?

?

Yes.? The TKR851s (and 751s) were developed and manufactured after the TKR850 Ver 2s

were developed.?? In other words, all of the x51s are Version 2 radios.

Between the shop and several local ham groups I've laid hands on about 40 TKRx50s

both Ver 2s and pre-Ver 2s.?? The KPG-46 cable works on all of them.

The original units required KPG-66D (as far as I know ver 2.01 was the final).
The V2 units required KPG-91D.?

There have been several versions, one had a fan bug...? The TX fan had two modes, thermal and always-on.?

When KPG-91D was used on a original unit there was a possibility that the fan would get stuck in always-on.

I was told that Version 2.13 resolves that.? I've been using 2.13 on both original units and Ver 2s with zero issues.

Until 2.13 came out I had both KPG-66 and KPG-91 on my field computers.

?

One caution from a local Kenwood shop tech:
= = = = =
There's at least one fairly useful bit of information I can contribute regarding Kenwood Repeater programming.

You want the ".dat" file that is loaded into the repeater to be generated by the same version of software.

Meaning, if you use kpg-91d version 2.x to create the dat file (codeplug) for your TKR then you want to use

only the exact same version 2.x to upload that dat file into the TKR and not any other version.

If you don't know what version the loaded repeater dat file was created with, read it and create a new one using

only the software version you have loaded in / used with your computer.

?

When you start crossing different versions of programming software some very strange operational quirks can,

and in certain cases will occur. Save yourself the head scratching trouble shooting that I've already seen come

through the door.

= = = = =

In other words, you can be setting yourself up for future problems if something like this happens...
* Your second hand repeater came with a codeplug that was generated by, say, Ver 1.6 software (and in

reality you probably have no idea what version was used).?
* You naturally bench that new-to-you repeater to check it out.?

* You have a workbench computer with, say, Version 2.1 software on it.??
* You download and save the codeplug on your bench computer, modify the codeplug with your ham

frequencies, tone, etc, retune the repeater front end and then install the repeater at your site.?

* You have a field computer and it has the new rev on it - let's say that it is version 2.13. ?
* Six months later you are at the site for some other reason and while you are there you decide to add a

backup mode to the repeater... Mode 01 is the normal mode and is configured for an external controller

and you decide to set up Mode 02 with the in-cabinet-repeat and internal ID just in case the controller

dies at some future date and the repeater has to work by itself.??
Someone can go to the site and just press "Channel Up" so the display reads "02".
* You download the repeater codeplug to your laptop, make the change, and then upload it.??

* And now the repeater starts misbehaving. Mode 01 does;t even work like it used to. You think

"good thing I saved the codeplug before I changed things". You reload the unchanged codeplug.?
That doesn't fix it. It's still broke..? IT'S NOT YOUR FAULT.??
* Just create a new codeplug from scratch, customize it with your parameters and upload it to the TKR.
One version did it all.?? Doesn't have to be one computer, just the same version on all the computers.

?

Since I heard about this potential nightmare I always download the codeplug that the radio comes with

(and save it with "-original" at the end of the filename), inspect all the screens, take notes (sometimes I

"print-screen" to a JPEG file), and then I create a new virgin codeplug, customize it, and upload that one.

?

Mike WA6ILQ

?

On Tuesday, March 25, 2025, 8:49 PM, M M via groups.io <wa6ilq@...> wrote:

All:

There is an R100 page at repeater-builder.com

?

If anyone would like to contribute files, programs, or anything else to that page (or any other page) then let me know.

?

Please note that I have ZERO knowledge or hands-on experience with R100s or MC-Compacts.?

Any contributors will have to tell me what they are contributing and where it should go on that page.

Mike WA6ILQ

?

?

?

On 03/26/2025 2:24 PM EDT Jim Barbour via groups.io <wd8chl@...> wrote:


After 8 years of working with them, and thousands of radios, Ive never
noticed any issues with audio quality on those out side of faulty mics
that had bad cords or were otherwise broken.
Yes, the new KMC-65 mics do sound better, however...


On 3/26/2025 12:42 PM, John via groups.io wrote:

At least on the TKX90 mobile radios, removal of chip cap C10 (0.068MF)
adds more highs to give more crispness, less muffled voice audio. This
is located on the mike PC board with it's location marked.
John

From: [email protected] <[email protected]> On Behalf Of Ken Arck AH6LE via groups.io
Sent: Wednesday, March 26, 2025 1:40 PM
To: [email protected]
Subject: Re: [repeater-builder] programming for Kenwood repeaters

?

The KPG-91D software is valid for the 750/751/850/851. And it is backwards compatible with pre Version 2 TKRs as well.

Ken


At 11:34 AM 3/26/2025, you wrote:

On Wednesday, March 26, 2025 at 11:32:39 AM EDT, Chad Nelson <chad.nelson71@...> wrote:


Hi all,

?Yes on the cable but I don't know about the software.

Les Keegan

N4LPK

I have a Kenwood TKR850 ver 2 and another one with is a TKR851. My question is:

?

I have a serial cable I use to program the 850, and the KPG 91 CPS Will both repeaters use the same programming CPS and serial cable for programming?

?

?

------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories
Phone: (503) 678 6182
Authorized Dealers for Kenwood and Telewave.
We offer complete turn-key repeater packages!
"We don't just make 'em. We use 'em!"

On Wednesday, March 26, 2025 at 11:32:39 AM EDT, Chad Nelson <chad.nelson71@...> wrote:


Hi all,

?Yes on the cable but I don't know about the software.

Les Keegan

N4LPK

I have a Kenwood TKR850 ver 2 and another one with is a TKR851. My question is:

?

I have a serial cable I use to program the 850, and the KPG 91 CPS Will both repeaters use the same programming CPS and serial cable for programming?

?
------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories
Phone: (503) 678 6182
Authorized Dealers for Kenwood and Telewave.
We offer complete turn-key repeater packages!
"We don't just make 'em. We use 'em!"

At least on the TKX90 mobile radios, removal of chip cap C10 (0.068MF) adds more highs to give more crispness, less muffled voice audio. This is located on the mike PC board with it's location marked.
John

Cable yes....KPG is different iirc
Chris WB5ITT
On Wed, Mar 26, 2025, 10:32 AM Chad Nelson via groups.io <> <chad.nelson71@... <mailto:[email protected]>> wrote:
Hi all,____
__ __
I have a Kenwood TKR850 ver 2 and another one with is a TKR851. My
question is:____
__ __
I have a serial cable I use to program the 850, and the KPG 91 CPS
Will both repeaters use the same programming CPS and serial cable
for programming?____
__ __