Non-Band-Specific Station Information:
Notes:
1) The controller connection articles are also applicable to other brands of controllers...

2) There are several different backplanes - the "standard" one (TLN5644 series), the "community repeater" one (TRN6421 series), the Digital Voice Privacy (DVP) "secure" one (TLN5979 series), the "PURC" or paging one (don't have that number), etc. Before you start doing any mods make sure that you have the proper books and the proper schematic(s). There is a list of manuals near the top of this page, and you really need the right manuals for your station. You will discover details such as if you have the TLN5979A backplane (instead of the more common TLN5644A) you MUST use the TLN5970A Station Control Module as it has many critical connections that are very different from the more common TLN4635B SCM. Or the fact that if the SCM is earlier than suffix -2, you MUST use only the TLN4636A Timeout Timer module (some chose to not use a TOT module). If the SCM is a -2 or later then you have to use a TRN8684A Timeout Timer Module.

3) The mobile audio-squelch board is model number TLN4310A or B. The station A-S board is model TLN6006A or B. If you find an A-S board stamped TRN5716APR (actually TRN5716 followed by anything) you have one that came out of a 900 MHz Micor mobile, and these boards are different as the 900MHz radios use 2.5 KHz deviation where low band, high band, UHF and 800 MHz use 5 KHz deviation. Anyone that runs 900 MHz Micor radios will be happy to trade you for that TRN5716 series board.

4) Moto made a special "Extractor Tool" to get the cards out of the Micor chassis: part number 66-83574F01.

5) If you need replacement or additional card guides for the MICOR station card cage they are part number 45B83914G01 at about $2 each (2004 price)

	Comprehensive conversion of the MICOR® Compa-Station base/repeater station   By Kevin Custer W3KKC
	Synthesize your MICOR Station   By Greg Carttar (ex-WAØLCZ) of 3rd St. R & D Production Services   (offsite link)
	Modification of the MICOR PL Encoder     By Kevin Custer W3KKC In some situations you want to disable the reverse-burst functionality. This writeup tells you how.
	Notes on how to simply connect a generic repeater controller to a MICOR station  By M. Scott Zimmerman N3XCC
	An IDer for the MICOR Repeater Shelf    By Jerry Matthews WAØUZI Useful to the commercial repeaters as the amateur radio repeater controllers have built-in ID'ers. While an IDer is not required for GMRS, it's a good idea and this article is relevant there as well.
	One method of connection of a repeater controller (an S-COM) to the MICOR station  By Bob Hoffman N3CVL     (off-site link)
	Another connection of a repeater controller (an S-COM) to the MICOR Unified Chassis Station   However this technique will work with any controller that can accept active low COR and PL decode signals and output an active low PTT signal (i.e. one that goes to ground).   By Joel Huntley WA1ZYX     (off-site link)
	Modification of the older Station Control Module TLN4635B   By Kevin Custer W3KKC These mods are relevant when using a repeater controller.
	Parts layout of the TLN4635 Station Control Module: original (180kb)  enhanced (616kb)  enhanced & rotated (616kb)     Provided by Eric Lemmon WB6FLY The "enhanced" file has a bit of contrast tweaking by WA6ILQ.   The rotated file is properly aligned for printing.
	Modification of the newer Station Control Module TLN5970A (or later)   By Kevin Custer W3KKC When using a repeater controller.
	Modifying the TRN4662 Squelch Gate Module as an interface to an external controller   By Richard Reese WA8DBW     (off-site link)
	Modifying the TRN4662 Squelch Gate Module for better operation as a repeater controller.   By M. Scott Zimmerman N3XCC
	Conversion of the TRN6006 series Station Audio & Squelch board   For better audio muting   By Kevin Custer W3KKC
	Using a converted TLN4310 mobile audio & squelch board in a base/repeater station   By Kevin Custer W3KKC
	Conversion of the Compa-Station Receiver Interconnect Board   By Kevin Custer W3KKC
	Documentation on the TLN5167A Intercom, TLN5900 and TLN5993 Station Metering Kit, and TLN1859 and TLN1887 Metering and Intercom Kits   Donated by Eric Lemmon WB6FLY
	The Micor station had an optional PROM based Identifier card. The MSR2000 page has the documentation on two different but very similar cards (the major difference is the card endge connector).
	The four PL tone decoder module for the standard Micor station card cage is the TLN5745x Multi-PL Decoder (where x is blank, A or B depending on the version).   The TRN6166A is the DPL equivalent.   When used in the stock repeat shelf, an unmodified TLN5745 (or TRN6166A) card allows the repeater to respond to up to four tones (or codes) on the input, ORed on the card to the single status line that tells the control shelf that a valid tone (or code) has been decoded (i.e. four without the stock decoder in place, adding the stock decoder and a few nonstandard jumpers allows five).   With the Micor station configured as a full duplex base, and cabled to a repeater controller, a modified card can feed the repeater controller inputs and tell it which tone (or code) is being received.   The mod consists of adding wiring that picks up the collectors of the four open collector decode lines and routes them to a connector, either a pigtail or a DB9 punched into the front of the card.   One common use of multiple decode is on a club machine, with the first tone (for example, 100 Hz) listed in the local repeater directory, and the second (perhaps 146.2 Hz) used by club members.   You would program the repeater controller so that the 100 Hz tone would provide local repeat, and the 146.2 Hz would allow autopatch and other system toys.   Installing this card does not preclude any other options as it slides into the otherwise unused tone burst decoder slot.   The equivalent PL tone card for the MSR2000 station is the TRN5329x.   Click here for a photo of the MSR version.   Except for the edge connector on the card, and the black paint on the bracket, it's identical to the Micor card. These cards are extremely rare, as they were used in only a few special purpose station configurations.   If you can't find one it's not difficult to implement the same functionality by using the stock receiver decoder for the first tone, and a separate decoder (TS32 or similar) for each additional tone.
	Documentation on the QLN2812A Station Identifier Field Modification Kit - provided by John Gilbert KA4JMC This kit was made up of a QRN8424B or QRN8425B module, the QKN7547A cable, this documentation and a few other loose pieces. The QRN8424B is used in Micor stations, the QRN8425B module is used in MSR2000 stations. This module uses a fairly inflexible design - the IDer audio frequency (1,200 Hz) is slaved to the IDer morse code speed. The IDer spacing is either 15 or 30 minutes (but is dependent on the timing of a 555 chip). Both of these modules use a 256x4 PROM chip that is almost pure unobtanium (Monolithic Memories MM5301-1). Each byte represents one time frame, a dit requires two frames, a dah requires four, a word space requires five. Module overhead uses 31 frames. The rest can be used for the actual IDer string (the Morse code sequence). An adapter could be made to allow use of a 27nn or 27nnn series chip, but it's much easier to use an external repeater controller like an NHRC, Scom, etc., but since FCC Rules require you to be able to remotely switch the repeater on and off you need a real repeater controller anyway... and you can buy a decent one for under US$160 (the NHRC-4)
	Converting the Unified Chassis Station to 12vDC only   229 KB PDF by Lee Woldanski VE7FET The standard Micor station power supplies deliver three separate outputs: unregulated +V to the PA deck, and both regulated +12vDC and +9.6vDC to the unified chassis (the control shelf, exciter and the receiver). In some cases you want to power the station from an existing +12vDC source. This writeup shows how to modify the unified chassis to generate its own 9.6vDC. Non-unified stations can do this mod separately to the control shelf, the exciter chassis and to the receiver chassis.