The Arcom RC210 is a true 3‑port repeater controller that is available as a kit or already assembled.   Each port has its own timeout and hang (carrier delay) timers, courtesy tone, ID's and dedicated DTMF decoder. Each port can be intertied to any other port. Each port can be configured as a repeater, a remote base, or a half or full duplex link port. Options include The RAD Audio Delay Board (eliminates squelch crashes and DTMF blips) and the AP1 Intelligent Autopatch Board (which doesn't tie up a radio port).

Likewise for the RC810 controller:

The Arcom RC-810 is a true 8-port repeater controller that was introduced at Dayton 2006.

Modifications and Articles

	Audio Level Modification   An audio modification that eliminates clicks and pops when ports are linked and unlinked.   1.3mb PDF This is needed only on older boards.   By Arcom Communications
	The Proper Method of Setting the Audio Levels on the RC-210   By Arcom Communications
	A 1750 tone-burst decoder for the RC-210   By Jon Richardson G7PFT.   50kb PDF
	Audio Delay Board Replacement in an ACC controller   By Darrin Stanley KB6WAS How to replace the old "bucket brigade" ACC audio delay with the Arcom digital audio delay board.
	Audio Delay Board Update   A cure for the "swooshing" sound that the old boards create on first keyup.   By Arcom Communications
	More than 3 ports?   By Ken Arck AH6LE of Arcom Communications. 18kb PDF How to connect an IRLP node (or other half-duplex source) to the RC210 without using a port... While the Auxiliary Audio Inputs were originally designed to allow connection of a WWV receiver or weather receiver, this article shows how you can use them, along with Alarm Inputs, to simulate up to 3 additional ports. The only limitation on these "new" ports is that the audio source has to provide its own squelch or audio muting (because the aux audio ports are on all the time, they are not switched on and off). The most common use of these additional ports are IRLP or EchoLink node or a weather receiver or a half-duplex link or remote base radio. Some weather receivers require you to push a reset button to mute the audio, others mute on receipt of the End-Of-Message code in the broadcast. Personally, I've seen some broadcasts contain the EOM, and others from the same NOAA weather transmitter do not have it. I'd wire an RC-210 digital output drive the coil of a reed relay, and connect the contacts of that relay across the reset button of the weather receiver "just in case". Note that the COS and CTCSS inputs of the three "real" ports of the RC-210 can handle up to 15vDC, but the logic (alarm) inputs that are used on the "new" ports MUST NEVER exceed 5vDC. The same is true of the A/D inputs.
	RC-210 Programming Helper Worksheets   A collection of worksheets to help plan and document your RC-210 programming.   By M. Scott Zimmerman N3XCC
	Making an RC-210 parallel cable for use with the Bascom program   By Kevin Custer W3KKC
	A factory writeup on connecting a Kenwood TKR-x50 series repeater to one port of an RC-210.   From Ken Arck AH6LE of Arcom Communications Full details on how to interconnect the two.
	Connecting a Reecom R-1630C Weather Radio to the RC-210 repeater controller   By Randy Elliott VE3JPU
	Programming the RC-210 controller for a Reecom R-1630C Weather Radio   By Randy Elliott VE3JPU
	Repeater-builder received an email from Ken: As we discussed on the phone, here is some info for the RB website: I now have the capability to give Kenwood TKR repeaters (750/751/850/851) the following: 1) 120 degree phase shift for reverse burst 2) Turning off pre-emphasis on xmtr audio, allowing flat audio through the system for situations that use an external controller. This flat audio IS limited by the TKR's internal limiter/BP filter negating the need for any external limiting and filtering. #1 is accomplished by the use of custom template data files for each of the above radios. Unfortunately Kenwood won't allow the sharing of those templates HOWEVER they have authorized us to provide complete data files (with all the customer freqs, etc) as we deem fit.

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This page originally posted on 23-Sep-2004