MaxTrac index Motorola index Back to Home

Motorola Radius Mobile Radios M100, M206, M208, M214, M216 Series Compiled by Robert W. Meister WA1MIK

All of this information came from the Motorola Radius Service Manual 6880101W58A circa 1988/1989 with lots of revision sheets. All of the boards listed below are used in the MaxTrac mobile radios; see the MaxTrac Detailed Service Manual for schematics. All electronic parts are interchangeable except the firmware, which governs the radio's model number and features. (You can replace the EPROM with MaxTrac firmware but then you'd need to use MaxTrac software to program it, and the model number would change.) The front panel labels and volume control knob are slightly different. The RADMBL (HVN9173 or HVN9174) DOS-only RSS package is used to program the Radius radios. These radios are all conventional; trunking was only available on the MaxTrac models.

M100 series have 2 modes. M206 series have 6 modes. M214 series have 14 modes and seem to be the only ones that offer Scanning. They require an expanded logic board (one with firmware on an EPROM). Motorola introduced the M208 and M216 series, which have 8 and 16 modes respectively. The model numbers have Revision letter B for the 8 and 16 mode radios. Channel Steering is also available on radios with the 16-pin accessory jack. The only Radius firmware IC is HLN9277A.

This is not meant to be an all-encompassing, know-all, do-all article about Motorola Radius radios. As such, there may be additional, newer information available from other sources. It's just a summary of information extracted from the above-mentioned service manual. For all intents and purposes, the Radius models mentioned here are identical to the MaxTrac 50, 100, and 300 models documented elsewhere. A lot of assemblies can be mixed, matched, and swapped between the two radio series. The radios and RSS are no longer sold but some of the more common parts are still available from Motorola.

NOTES:
[1]: 29 MHz is shown instead of 29.7 MHz as the low limit for some frequency ranges or bands.
[2]: Power values are in Watts.
[3]: Band, Band Segment, and Freq Range values are in MHz.

12-Character Model Number Decoder (characters 1-7):

Mount	Power	Band	Model Series
D: dash	0: 2	1: 29-50	LRA7: Radius
	3: 15-25	3: 136-174
	4: 30-40	4: 403-470
	5: 60	5: 806-871

12-Character Model Number Decoder continued (characters 8-12):

Modes	Band Segment	Revision	Package
3: 2	29: 403-430	A: 2,6,14 modes	K: standard
7: 6 or 8	32: 29-36	B: 2,8,16 modes
P: 14 or 16	33: 36-42
	34: 42-50
	A5: All Others
	A6: 800 T/A

Radio Model Numbers:

Model Number	Series	Power	Freq Range	Modes	Options
D04LRA77A5AK	M206	2	449-470	6	(P,D)
D04LRA7PA5AK	M214	2	449-470	14	(P,D)
D33LRA73A5BK	M100	25	136-162	2	P,D
D33LRA77A5BK	M208	25	146-174	8	P,D
D33LRA7PA5BK	M216	25	146-174	16	P,D,S
D34LRA73A5AK	M100	25	449-470	2	(P,D)
D34LRA77A5AK	M206	25	449-470	6	(P,D)
D34LRA7PA5AK	M214	25	449-470	14	(P,D)
D35LRA73A5AK	M100	15	800 non-TA	2	(P,D)
D35LRA73A6AK	M100	15	800 T/A	2	P,D
D35LRA77A5AK	M206	15	800 non-TA	6	(P,D)
D35LRA77A6AK	M206	15	800 T/A	6	P,D
D35LRA7PA5AK	M214	15	800 non-TA	14	(P,D)
D35LRA7PA6AK	M214	15	800 T/A	14	P,D,S
D43LRA73A5BK	M100	40	146-174	2	P,D
D43LRA77A5BK	M208	40	146-174	8	P,D
D43LRA7PA5BK	M216	40	146-174	16	P,D,S
D44LRA7329AK	M100	35	403-430	2	P,D
D44LRA73A5BK	M100	35	449-470	2	P,D
D44LRA7729AK	M206	35	403-430	6	P,D
D44LRA77A5BK	M208	35	449-470	8	P,D
D44LRA7P29AK	M214	35	403-430	14	P,D,S
D44LRA7PA5BK	M216	35	449-470	16	P,D,S
D45LRA7PA6AK	M214	35	800 T/A	14	P,D,S
D51LRA9732AK	M206	60	29-36	6	P,D
D51LRA9733AK	M206	60	36-42	6	P,D
D51LRA9734AK	M206	60	42-50	6	P,D
D51LRA9P32AK	M214	60	29-36	14	P,D
D51LRA9P33AK	M214	60	36-42	14	P,D
D51LRA9P34AK	M214	60	42-50	14	P,D

Options Column Letters: P = PL, D = DPL, S = Scan. Values in parentheses are assumed because every Radius can do PL, DPL, and CSQ.

Board Numbers: the 3rd letter specifies the frequency band: N: Not Frequency Specific (i.e. logic boards), B: 29-50 MHz, D: 136-174 MHz, E: 403-470 MHz, F: 806-870 MHz. Newer versions of some boards will have a B suffix instead of an A suffix.

RF Boards (the same as the MaxTrac):

Board #	Freq Range
HLB4099A	29-36
HLB4100A	36-42
HLB4101A	42-50
HLD4321A	136-162
HLD4322A	146-174
HLE4424A	403-430
HLE4425A	449-470
HLE9310A	449-470
HLF4095A	800 NON-TA
HLF9122A	800 T/A

Logic Boards (the same as the MaxTrac):

Board #	Type	Acc Jack
HLN5173A	Expanded	5-pin
HLN9123A	Masked	5-pin
HLN9313A	Expanded	16-pin

Power Amplifiers (probably the same as the MaxTrac):

Board #	Freq Range	Power
HLB4105A	29-36	60
HLB4106A	36-42	60
HLB4107A	42-50	60
HLD4323A	136-162	25
HLD4324A	146-174	25
HLD4326A	146-174	40
HLE4430A	403-430	35
HLE4431A	449-470	25
HLE4432A	449-470	35
HLE9502A	449-470	2
HLF4097A	800 T/A	15
HLF4098A	800 T/A	35

Radius, MaxTrac, and a whole bunch of other terms are trademarks of Motorola, Inc.

Send corrections and additions to the author at: his-callsign [ at ] comcast [ dot ] net.

Back to the top of the page
Up one level (MaxTrac index)
Up two levels (Motorola index)
Back to Home

This page originally posted on Friday 01-May-2009

Article text, artistic layout, and hand-coded HTML © Copyright 2009 by Robert W. Meister WA1MIK.

This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.