- SYNTOR X RADIO MODEL INFORMATION
		- Locating Radio Model Numbers
		- Locating Radio Unified Chassis Numbers
			- Unified Chassis Number Tag Photo
			- Unified Chassis Number Ink Stamp Photo
		- Decoding Radio Model and Unified Chassis Numbers
			- Low Band
			- VHF
			- UHF
			- 800 MHz
			- PAC-PL and PAC-RT Vehicle Repeater Model Numbers
		- Notes
	- Syntor X Home
	- HOME

Locating radio model numbers:

Please see the locating radio model numbers instructions on the home page.

Locating radio unified chassis numbers:

The Unified Chassis Number is typically printed on a small white label stuck on the bottom of the radio's chassis (photo). Occasionally this number will be stamped in black ink on the edge of the radio's chassis instead of being on a white label (photo). To locate this label remove the mounting tray, turn the radio over and look on the bottom near the J1 connector. Often the label is obscured by the radio's bottom cover (held on by 4 screws) and this cover must be removed to see it. Unfortunately these labels are missing allot of the time. If you can not locate the Unified Chassis Number label, one way to determine the radio's options, frequency coverage, etc., is to get the manual out, open up the radio and lookup the appropriate subassembly numbers for the radio's internal parts. Another way is the top lid that opens via the pushbutton located under the handle, has the radio factory programming label that may help decipher the frequency range and squelch options (option W12 indicates a VHF or UHF receiver preamp). Make sure the serial number on the radio matches the one printed on the label before using the label information.

Please check out the Syntor X visual tour for photographs of the Unified Chassis Number.

Decoding radio model and unified chassis numbers:

The Model numbers can end in letters AK, BK, CK, etc. and Unified Chassis numbers can end with letters A, B, C, etc. depending on the manufacturing revision of the chassis. These have no effect on the information presented below. Sometimes the letter B is mistaken for the number 8.

There are special order radios that have model numbers which end with the letters "SP" and two digits. Usually the radio will have some custom feature, like a 60 watt low band radio with the "SPxx" suffix. I have also seen radios with combinations of parts that are not covered in any manual, but do not use the "SPxx" suffix like I would have expected. Occasionally you will find a radio that will not do everything you expect or want (i.e. a Syntor X 9000 T34KEJ7J04AKSP99 has no transmitter circuitry at all). Sometimes you just have to figure it out.

LOW BAND SYNTOR X MODEL and UNIFIED CHASSIS NUMBER INFORMATION
MODEL NUMBER	DESCRIPTION
T51VBJ7204AKSP01	31-50 MHz, 60 Watt, 8 mode
T51VBJ7D04AKSP01	31-50 MHz, 60 Watt, 16 mode
T51VBJ7J04AKSP01	31-50 MHz, 60 Watt, 32 mode
T71VBJ7204AK	31-50 MHz, 100 Watt, 8 mode
T71VBJ7D04AK	31-50 MHz, 100 Watt, 16 mode
T71VBJ7J04AK	31-50 MHz, 100 Watt, 32 mode
T71VXJ7204AK	31-50 MHz, 100 Watt, 8 mode, Securenet
T71VXJ7D04AK	31-50 MHz, 100 Watt, 16 mode, Securenet
T71VXJ7J04AK	31-50 MHz, 100 Watt, 32 mode, Securenet
CHASSIS NUMBER	DESCRIPTION
HUB1077A	Coded squelch, 33-50 MHz, Preamp, 100 Watt

• The frequencies listed are the original factory frequency range. This radio typically does 28-54 MHz by simply reprogramming the radio.
• The 100 watt radios are rated at 100 watts fixed. Turning the output power down usually causes these radios to transmit spurious signals.
• I do not have a unified chassis number for the special 60 watt version.
• The low band radios are the only ones that use a special receiver noise canceling system called an Extender, which is entirely built into the low band radio drawer. The Extender is programmed in the radio's EEPROM. GE uses the term Extender for their vehicle repeater system, so do not confuse it with Motorola's Extender.

VHF SYNTOR X MODEL and UNIFIED CHASSIS NUMBER INFORMATION
MODEL NUMBER	DESCRIPTION
T43VBJ7204AK	40/30* Watt, 8 mode
T43VBJ7D04AK	40/30* Watt, 16 mode
T43VBJ7J04AK	40/30* Watt, 32 mode
T43VXJ7204AK	40/30* Watt, 8 mode, Securenet
T43VXJ7D04AK	40/30* Watt, 16 mode, Securenet
T43VXJ7J04AK	40/30* Watt, 32 mode, Securenet
* The 30 watt radios are 136-154.4 MHz and the 40 watt radios are 150-174 MHz (see below)
CHASSIS NUMBER	DESCRIPTION
HUD1497A	Coded squelch, 136-154.4 MHz, 30 Watts
HUD1702A	Coded squelch w/ Preamp, 136-154.4 MHz, 30 Watts
HUD1683A	Coded squelch, 150-174 MHz, 40 Watts
HUD1686A	Coded squelch w/ Preamp, 150-174 MHz, 40 Watts
MODEL NUMBER	DESCRIPTION
T53VBJ7204AK	150-174 MHz, 75-55 Watt, 8 mode
T53VBJ7D04AK	150-174 MHz, 75-55 Watt, 16 mode
T53VBJ7J04AK	150-174 MHz, 75-55 Watt, 32 mode
T73VBJ7204AK	150-174 MHz, 100 Watt, 8 mode
T73VBJ7D04AK	150-174 MHz, 100 Watt, 16 mode
T73VBJ7J04AK	150-174 MHz, 100 Watt, 32 mode
T73VXJ7204AK	150-174 MHz, 100 Watt, 8 mode, Securenet
T73VXJ7D04AK	150-174 MHz, 100 Watt, 16 mode, Securenet
T73VXJ7J04AK	150-174 MHz, 100 Watt, 32 mode, Securenet
T83VBJ7204AK	150-174 MHz, 110-75 or 110-10 Watt, 8 mode
T83VBJ7D04AK	150-174 MHz, 110-75 or 110-10 Watt, 16 mode
T83VBJ7J04AK	150-174 MHz, 110-75 or 110-10 Watt, 32 mode
T83VXJ7204AKSP1	150-174 MHz, 110-75 Watt, 8 mode, Securenet
T83VXJ7D04AKSP2	150-174 MHz, 110-75 Watt, 16 mode, Securenet (also SP1)
T83VXJ7J04AKSP2	150-174 MHz, 110-75 Watt, 32 mode, Securenet (also SP1)
CHASSIS NUMBER	DESCRIPTION
HUD1090A	Coded squelch, 150-174 MHz, 75-55 Watts, 100 Watts or 110-75 Watts
HUD1091A	Carrier squelch, 150-174 MHz, 75-55 Watts, 100 Watts or 110-75 Watts
HUD1092A	Coded squelch w/ Preamp, 150-174 MHz, 75-55 Watts, 100 Watts or 110-75 Watts
HUD1093A	Carrier squelch w/ Preamp, 150-174 MHz, 75-55 Watts, 100 Watts or 110-75 Watts
HUD1098A	Coded squelch, 150-174 MHz, 110-10 Watts
YUD1001A	Coded squelch, 150-174 MHz, 110-75 Watts + DVP Support (HUD1090A-SP700)

• The frequencies listed are the original factory frequency ranges. The 150-174 MHz radios typically do 144-174 MHz by simply reprogramming the radio.
• The 75-55 watt, 110-75 and 110-10 watt radios have programmable high and low power settings. The power setting is programmed into each mode selection. According to the manual there is only one power amplifier for the 75-55 and 110-75 watt radios, so it appears both of these T53 and T83 radios are really 110-55 watt (there is a different power amplifier for the 110-10 watt radios). When the Unified Chassis Number has multiple power levels listed, the Model Number determines the actual power level or levels.
• The 110 watt radios are continuously adjustable to 55 watts, the 100 watt radios are continuously adjustable to 50 watts, the 40 watt radios are continuously adjustable to 20 watts and the 30 watt radios are rated at 30 watts fixed.
• The "Carrier squelch" radio's Personality Boards are missing the I/O Board and are not capable of encoding or decoding PL or DPL.
• The T83VXJ radios use a HLN4425A DVP interface board which is mounted upside down above the Personality Board and connected with cable HKN4117A.
• The YUD1001A Unified Chassis Number is specifically for the T83VXJ radios. Other Unified Chassis Numbers may or may not support DVP depending on their model number configuration (i.e. VXJ), but the YUD1001A is dedicated for DVP support. Instead of using jumper selectable DVP support, the Common Circuits Board is built in the DVP configuration.

UHF SYNTOR X MODEL and UNIFIED CHASSIS NUMBER INFORMATION
MODEL NUMBER	DESCRIPTION
T34VBJ7204AK	30 Watt, 8 mode
T34VBJ7D04AK	30 Watt, 16 mode
T34VBJ7J04AK	30 Watt, 32 mode
T64VBJ7204AK	78 Watt, 8 mode
T64VBJ7D04AK	78 Watt, 16 mode
T64VBJ7J04AK	78 Watt, 32 mode
T74VBJ7204AK	100 Watt, 8 mode
T74VBJ7D04AK	100 Watt, 16 mode
T74VBJ7J04AK	100 Watt, 32 mode
T74VXJ7204AK	100 Watt, 8 mode, Securenet
T74VXJ7D04AK	100 Watt, 16 mode, Securenet
T74VXJ7J04AK	100 Watt, 32 mode, Securenet
CHASSIS NUMBER	DESCRIPTION
HUE1272A	Coded squelch, 450-470 MHz, 30 Watt
HUE1277A	Coded squelch w/ Preamp, 450-470 MHz, 30 Watt
HUE1273A	Coded squelch, 470-488 MHz, 30 Watt
HUE1278A	Coded squelch w/ Preamp, 470-488 MHz, 30 Watt
HUE1274A	Coded squelch, 482-500 MHz, 30 Watt
HUE1279A	Coded squelch w/ Preamp, 482-500 MHz, 30 Watt
HUE1275A	Coded squelch, 494-512 MHz, 30 Watt
HUE1280A	Coded squelch w/ Preamp, 494-512 MHz, 30 Watt
HUE1243A	Coded squelch, 470-488 MHz, 78 Watt
HUE1248A	Coded squelch w/ Preamp, 470-488 MHz, 78 Watt
HUE1244A	Coded squelch, 482-500 MHz, 78 Watt
HUE1249A	Coded squelch w/ Preamp, 482-500 MHz, 78 Watt
HUE1235A	Coded squelch, 494-512 MHz, 78 Watt
HUE1240A	Coded squelch w/ Preamp, 494-512 MHz, 78 Watt
HUE1241A	Coded squelch, 406-420 MHz, 100 Watt
HUE1902A	Coded squelch w/ Preamp, 406-420 MHz, 100 Watt
HUE1242A	Coded squelch, 450-470 MHz, 100 Watt
HUE1247A	Coded squelch w/ Preamp, 450-470 MHz, 100 Watt

• The frequencies listed are the original factory frequency ranges. The 450-470 MHz radios typically do 440-470 MHz by simply reprogramming the radio, however, these receivers usually do not work well below 446 MHz without retuning the receiver front end (i.e. preselector filter and 1st mixer injection filter).
• The 100 watt 406-420 MHz radios are rated at 100 watts fixed, the other 100 watt 450-470 MHz radios are continuously adjustable to 50 watts, the 78 watt radios are continuously adjustable to 39 watts and the 30 watt radios are continuously adjustable to 15 watts.

800 MHz CONVENTIONAL SYNTOR X MODEL and UNIFIED CHASSIS NUMBER INFORMATION
MODEL NUMBER	DESCRIPTION
T45VBJ7000AK	Rx 851-870 MHz, Tx 806-825 MHz, 35 Watt, 32 mode
CHASSIS NUMBER	DESCRIPTION
HUF1071A	Coded squelch, 35 Watt
HUF1081A	Carrier squelch, 35 Watt
HUF1101A	Coded squelch, + Tx 851-870 MHz Talkaround , 35 Watt

• The "Carrier squelch" radio's Personality Boards are missing the I/O Board and are not capable of encoding or decoding PL or DPL.
• If you are going to attempt a 900 MHz conversion the Talkaround version HUF1101A is the only one suitable for conversion. If your conventional radio does not have Talkaround, many of the trunking Syntor X radios have Talkaround and can be recombined with conventional radio parts to make a conventional Syntor X with Talkaround (i.e. converting a HUF1071 or HUF1081 to Talkaround).
• The 35 watt radios are rated at 35 watts fixed.

PAC-PL and PAC-RT VEHICLE REPEATER MODEL INFORMATION

Please see the PAC page for this information.

Notes:

All conventional Syntor X radios are capable of 32 mode operation with the correct cable, control head and programming regardless of the number of modes indicated by the radio model number. The radio model number indicates the cable, control head and programming configuration the radio was originally shipped with. See here for 64 mode Syntor X programming.

Only factory radio models with "T _ _ VXJ" have the HLN5008A DVP Interface Board, HLN4270A, HLN4270B or HLN4425A DVP Interface Board to support DVP. Radio models with "T _ _ VBJ" are missing the Interface Board and do not support DVP. The actual encrypted DVP audio is generated externally and hooked up to the Syntor X radio.

There are "VBJ" radios out there that do have a HLN5008A, HLN4270A, HLN4270B or HLN4425A Interface Board (they should be marked as "VXJ" models). These appear to be non-factory or dealer conversions. You should check the Personality Board to see if the HLN5008A, HLN4270A, HLN4270B or HLN4425A Interface Board is in you radio or not. Use the Personality Board jumper locator drawings from the jumper page to locate the HLN5008A. The HLN4270A, HLN4270B or HLN4425A is mounted upside down over the Personality Board near the big heat sink in back. If any of them are present, treat the radio as a "VXJ" model.

Any Syntor X radio operated outside its factory frequency range will probably benefit from retuning the receiver front end (depending on how far it is from the factory frequencies). Some radio's may have to have their Voltage Controlled Oscillator (VCO) retuned if the synthesizer can not lock on the desired frequencies.

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PL, Private Line, DPL, Digital Private Line, MPL, Talkaround, MDC-600, MDC-1200, MVS-20, Securenet, Smartnet, Privacy Plus, Trunked X2, Trunked X3, Touch Code, Quick Call II, Channel Scan, Talkback Scan, System 90, System 90*s, Systems 9000, Mitrek, Micor, Spectra, MataTrac, Syntor, Syntor X, Syntor X 9000 and Syntor X 9000E are trademarks of Motorola Inc.