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Harris / MA/COM / GE / Ericsson Forum - For general discussion of MA/COM EDACS and ProVoice systems, including equipment.

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Old 06-11-2017, 4:28 PM
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Default 500M or KMC 300

I recently acquired a few of these radios. I was wondering if anyone has any additional information on these radios such as PDF's or spreadsheets. I am looking at using them on our conventional frequency but wanted to know what features these radios support. Any encryption available? Where should I buy the programming cable for these? (I already have RPM and Programmer) Also, any manuals would be very helpful. Thanks in advance!
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Old 06-11-2017, 4:30 PM
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They require Programmer (not RPM) and a PIM (similar to Motorola RIB) in addition to the programming cable. The cable and PIM are both EOL/NLA. Neither support provoice or DES encryption.

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Old 06-12-2017, 8:16 AM
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KMC:
- KMC's support either 16 channels (numeric only display) or 128 channels (alphanumeric display).
- Upgrading a KMC from 16 to 128 channels only requires changing the LCD display module.
(NOTE: the Edacs500m's alphanumeric display module is the same part used for the KMC radio! Handy to remember when parting out dead E500m's.)
- The KMC supports both CTCSS and DCS squelch modes.
- The KMC supported GE-Star encode & decode with an optional plug-in module.

E500m:
- Shares all the same accessories as the KMC.
- The E500m only supports CTCSS, and DOES NOT support DCS squelch modes.
- The E500m does NOT SCAN CONVENTIONAL CHANNELS.


IMPORTANT:
Although the power cables for the KMC/E500m radio look like the same cable that the MDX/MDR/FMD radios use, it is different. The Ignition Sense and A+ power pins are reversed. Not interchangeable.
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Old 06-12-2017, 8:21 AM
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A FEW ADDITIONAL NOTES:

There are a few prototype E500m's which support ProVoice DES that got out into the 'wild'. Product Management decided to not sell this configuration. But it did work. It used the Orion's ProVoice daughter board.

In addition to the 'normal' 800 and 900 MHz radios, there are several dozen vhf-highband and uhf prototype models which were built but never sold, that have also escaped into the wild. (I own several of each, and have a 136-153 MHz model on my tractor.)

The E500m is basically an updated Orion. If you turn-on the external RS-485 port on the option cable (via a SC4 file), you can attach a Orion control head or Hand Held Controller to it. This SC4 file was written for a transit project for Siemens for city buses in Honolulu about 15 years ago. The Siemens' transit control heads (w/ data & AVL) talked to the radio via RS-485.




EDACS 500m MODEL NUMBERS (unpublished)
====================================
MODEL............DESCRIPTION...POWER
====================================
KRD 103 143/ 1...136-153 MHz...20w
KRD 103 143/ 2...150-174 MHz...20w
KRD 103 143/ 3...403-440 MHz...20w
KRD 103 143/ 4...440-470 MHz...20w
KRD 103 143/ 5...470-512 MHz...20w
------------------------------------
KRD 103 143/ 6...136-153 MHz...40W
KRD 103 143/ 7...150-174 MHz...40W
KRD 103 143/ 8...403-440 MHz...40W
KRD 103 143/ 9...440-470 MHz...40W
KRD 103 143/10...470-512 MHz...40W
------------------------------------
KRD 103 143/21...806-870 MHz...25W
KRD 103 143/31...896-941 MHz...25W
------------------------------------

Last edited by kb4cvn; 06-12-2017 at 8:29 AM..
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