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Kenwood NXR 810 repeater


 



Hello everyone

Question regarding a NXR810 repeater,
What cables & software are needed to reprogram the repeater, also dose Kenwood use an interface box like the older Motorola rib box?.

Thanks
Bob KD6GNB


 

Hi Bob

It requires their KPG-129DK software and just a regular ol' serial connection to its back panel DB25

Ken



At 02:15 PM 4/4/2025, you wrote:


Hello everyone

Question regarding a NXR810 repeater,
What cables & software are needed to reprogram the repeater, also dose Kenwood use an interface box like the older Motorola rib box?.

Thanks
Bob KD6GNB
------------------------------------------------------------------------------
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 4/4/2025 03:19 PM, you wrote:
Hi Bob

It requires their KPG-129DK software and just a regular ol' serial connection to its back panel DB25

Ken

I thought I used the same cable that I use to program my TK-880s & TKR-850s on my club's NXR-810: 8 pin modular.

Bob NO6B


 

That would work too but the only time that connection is absolutely necessary is when uploading firmware to the repeater (same as the TKRs). Otherwise, the DB25 on the back panel is fine (straight through, non null modem connection)

Ken



At 04:03 PM 4/4/2025, you wrote:

At 4/4/2025 03:19 PM, you wrote:
Hi Bob

It requires their KPG-129DK software and just a regular ol' serial connection to its back panel DB25

Ken

I thought I used the same cable that I use to program my TK-880s & TKR-850s on my club's NXR-810: 8 pin modular.

Bob NO6B
------------------------------------------------------------------------------
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 4/4/2025 04:09 PM, you wrote:
That would work too but the only time that connection is absolutely necessary is when uploading firmware to the repeater (same as the TKRs). Otherwise, the DB25 on the back panel is fine (straight through, non null modem connection)

Ken


Ahh I see: Kenwood was smart & made the serial pins the same as the standard DB-25 serial connection.? But since they stopped putting DB-25s on PCs about 30 years ago I don't have DB-25 serial cables anymore.? I do happen to have some DE-9 to DB-25 adapters that I haven't thrown out yet; guess they're good for something now.

Bob NO6B


 

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Bob,
?I use a USB to DB9 adapter, then a standard modem cable (DB9 to DB25). Works great for both the Kenwood repeaters and the ARCOM controller.?

Tom
KI5ELV

On Apr 4, 2025, at 7:49?PM, Bob Dengler <no6b@...> wrote:

? At 4/4/2025 04:09 PM, you wrote:
That would work too but the only time that connection is absolutely necessary is when uploading firmware to the repeater (same as the TKRs). Otherwise, the DB25 on the back panel is fine (straight through, non null modem connection)

Ken


Ahh I see: Kenwood was smart & made the serial pins the same as the standard DB-25 serial connection.? But since they stopped putting DB-25s on PCs about 30 years ago I don't have DB-25 serial cables anymore.? I do happen to have some DE-9 to DB-25 adapters that I haven't thrown out yet; guess they're good for something now.

Bob NO6B