Difference between revisions of "MTR Repeater"

From W9CR
Jump to navigation Jump to search
 
(9 intermediate revisions by the same user not shown)
Line 7: Line 7:
  
 
= Software =
 
= Software =
−
[[File:Motorola MTR2000 R03.02.01.zip|thumb|MTR2000 CPS]]
+
[[Media:Motorola MTR2000 R03.02.01.zip|MTR2000 CPS R03.02.01]]
  
−
[[File:28F800 image for MTR2000.bin|thumb|28F800 image for MTR2000]]
+
[[Media:MTR2000 Firmware Package R003.04.03.zip|MTR2000 Firmware R03.04.03 for station ID 8F11111C]] - LATEST FIRMWARE
  
−
[[File:Mtr2000-OCR30403.CMP|thumb|Mtr2000-OCR30403 cmp file for uploader to upgrade]]
+
[[media:Mtr2000-OCR30403.CMP|Mtr2000-OCR30403 cmp file for uploader to upgrade]]
 +
 
 +
[[Media:28F800 image for MTR2000.bin|28F800 image for MTR2000]]
 +
 
 +
[[media:MTR2000 DS4201 Emulator Source MTR2000-DS2401.zip| Arduino Uno DS2401 Emulator for Station ID 8F11111C]]
  
 
= Firmware =  
 
= Firmware =  
Line 24: Line 28:
 
== Procedure to update via DS4201 emulation ==
 
== Procedure to update via DS4201 emulation ==
  
−
This uses an Arduino to emulate the 1 wire serial ID of the DS4201  
+
This uses an [https://docs.arduino.cc/hardware/uno-rev3 Arduino Uno] to emulate the 1 wire serial ID of the [[media:Dallas DS2400 Silicon Serial Number.pdf|DS4201]]. 
  
 +
This procedure was developed by Chris, DG2NGI and formatted for the wiki.
  
−
# To use an firmware-file with feature definition string-file from another MTR2000 you have to save your codeplug first
+
[[Media:Manual to change Station ID of Motorola MTR2000 for firmware upgrade via RSS.pdf|Manuscript by Chris, DG2NGI to change Station ID of Motorola MTR2000 for firmware upgrade via RSS]]
−
# You should install i. e. Oracle VM Virual Box and Windows XP 32 bit in newer systems (tested even with Windows 11) and use an older RS232-USB-adapter, that will work under Windows XP (!!!)
+
 
 +
# Save your codeplug first.
 +
# Ensure your MTR2000 is working 100%
 +
# Use Windows XP 32 bit with a real serial port or FTDI based USB port.
 
# Install Motorola MTR2000 RSS
 
# Install Motorola MTR2000 RSS
−
# Download the codeplug and save it! Take screenshots of every alignment data (!!!)
+
# Download the codeplug and save it! Take screenshots of every alignment data as well
−
# Install putty and create a serial connection to your MTR2000 with 9600 baud
+
# With a serial terminal connect at 9600 8N1 to your MTR2000
−
# Send commands (you´ll see nothing during input!):
+
# Send commands (you´ll see nothing during input!):  
−
# dorss <enter>
+
#: dorss <enter>  
−
# get bpn <enter>
+
#: get bpn <enter>
−
# write down your backplane number (you can also see it in RSS as station ID)
+
# write down your backplane ID number (you can also see it in RSS as station ID)
−
# Remove Backplane cover
+
# Remove backplane cover:
 +
<gallery mode="packed-hover" heights=300>
 +
DS4201_install.jpg|U100 on back plane Dallas DS4201
 +
</gallery>
  
−
# You can see „U100“ Dallas serial IC. Be careful and desolder it. You should install it later. Otherwise your repeater will work with Station ID „0000000“. If you destroy the connection of PIN 2 on PCB it´s not so serious; you can find U100-connections on other place as well
+
 
−
# Take an Arduino and connect it to your PC. You have to install Arduino IDE on PC. Load MTR2000-DS2401.ino sketch into Arduino IDE and integrate „OneWireHub_library.zip“ in Arduino IDE as library as well
+
# <li value="10"> You can see U100 a Dallas serial IC. Be careful and desolder it, hot air is a must. You will need to re-install it later. </li>
−
# In MTR2000-DS2401.ino-sketch you can modify the DS2401 string: adapt all oft the 4 positions
+
#: if you don't install this again the repeater will have Station ID "0000000".  
−
# 0x01, 0x1C, 0x11, 0xF1, 0x08, 0x00, 0x00 (for Station ID 8F11111C); first 0x01 is family code, last two 0x00 are always 0x00
+
# Connect the Arduino to your PC.  
 +
#* Install Arduino IDE on PC.  
 +
#* Load MTR2000-DS2401.ino sketch into Arduino IDE and add the "OneWireHub_library.zip" in Arduino IDE as library as well
 +
#* In MTR2000-DS2401.ino sketch you may modify the DS2401 strings: Check all 4 postions:
 +
#*: 0x01, 0x1C, 0x11, 0xF1, 0x08, 0x00, 0x00 (for Station ID 8F1111C); first 0x01 is family code, last two 0x00 are always 0x00
 
# Connect pin 1 of U100 IC location on PCB to a ground-pin of Arduino Uno
 
# Connect pin 1 of U100 IC location on PCB to a ground-pin of Arduino Uno
 
# Connect pin 2 of U100 IC location on PCB to PIN 8 of Arduino
 
# Connect pin 2 of U100 IC location on PCB to PIN 8 of Arduino
  
  
−
# Disconnect Arduino from PC (!) and give it an external power supply; otherwise you´ll have signal problem
+
<gallery mode="packed-hover" heights=300>
−
# Power up your MTR2000 again; MTR2000 should recognice your Arduino as DS2401 and load its station ID alias backplane number; You have to power down every time for more than 15 seconds that MTR2000 forgets the loaded bpn from ds2401 in controller and can load another bpn out of another DS2401
+
DS4201 Image.jpg|DS4201 Pinout
 +
MTR2000-DS2401-hookup-00001.jpg| hookup of Dallas Chip temporary
 +
MTR2000-DS2401-hookup-00003.jpg| Arduino hooked up to MTR
 +
MTR2000-DS2401-hookup-00002.jpg| Arduino with Code
 +
</gallery>
 +
: DS2401 1-Wire Ground-pin: first line of 3rd connector, pin #2 from right
 +
: DS2401 1-Wire signal-pin: first line of last connector, pin #8 from left
 +
 
 +
# <li value="14">Disconnect Arduino from PC and power it from an external power supply; otherwise you'll have signal integrity problems</li>
 +
# Power the MTR2000 again; The MTR2000 should recognize the Arduino as a DS2401 and load its station ID/backplane number.
 +
#: If you want to change this, the MTR2000 must be powered power down every time for at least 15 seconds so the ram in the station  forgets the loaded data from DS2401 in the controller
 
# You can check actual station ID via Putty and serial commands
 
# You can check actual station ID via Putty and serial commands
−
dorss
+
#: dorss
−
get bpn
+
#: get bpn
−
 
 
−
You should do that on your own risk only if you have to upgrade firmware or repair your MTR2000.
 
−
Station ID seems to be only relevant during firmware upgrade.
 
−
To unlock a locked MTR2000 just temporarely until next power cycle you can use the following commands via Putty:
 
−
dorss
 
−
hw_id_check_off
 
−
reset
 
  
 +
<gallery mode="packed-hover" heights=300>
 +
MTR2000-DS2401-hookup-00004.jpg|Serial Terminal Output
 +
</gallery>
 +
# <li value="17"> You should see i. e. BPN = 000008F1111C </li>
 +
# Open the Load RSS and use upgrade function to push the firmware to the station.
 +
#: Ensure it's the firmware file .ocr and feature definition file .enc for Station ID 8F11111C
 +
# After flashing firmware and confirming it's working you can reinstall original DS2401 again
 +
# Reload your saved codeplug again and check alignment data from screenshots and that the MTR2000 is not in alarm.
 +
<gallery mode="packed-hover" heights=300>
 +
MTR2000-DS2401-hookup-00005.jpg | RSS
 +
MTR2000-DS2401-hookup-00006.jpg | happy MRT2000
 +
</gallery>
  
−
# You should see i. e. BPN = 000008F1111C
 
−
# Load RSS and use upgrade function
 
−
# You need firmware file .ocr and feature definition file .enc for Station ID 8F11111C in this example
 
−
# After flashing firmware you can reinstall your DS2401 again
 
−
# Reload your saved codeplug again and check alignment data from screenshots!
 
  
 +
* To unlock a locked MTR2000 just temporarily until next power cycle you can use the following commands via the serial port:
 +
*: dorss
 +
*: hw_id_check_off
 +
*: reset
  
 
== firmware update notes ==
 
== firmware update notes ==
Line 80: Line 109:
  
 
= Docs =  
 
= Docs =  
−
The MTR has a depot manual, but it's not available AFIK.  IF you have one, please tell me, I will happily send you a shipping label, have it scanned professionally and send it back all at my cost.
+
The MTR has a depot manual, but it's not available AFIK.  IF you have one, please tell me, I will happily send you a shipping label, have it scanned professionally and send it back all at my cost. '''We have a partial UHF and SCM manual now below!'''
  
 
The part number for the Depot Manual are 68P81096E40, and 68P81096E35, VHF/UHF respectively.  
 
The part number for the Depot Manual are 68P81096E40, and 68P81096E35, VHF/UHF respectively.  
Line 87: Line 116:
  
  
−
[[media:MTR2000 Install and Operation Manual 68P81096E20.pdf|thumb|MTR2000 Install and Operation Manual 68P81096E20]]
+
[[media:MTR2000 Install and Operation Manual 68P81096E20.pdf|MTR2000 Install and Operation Manual 68P81096E20]]
 +
 
 +
[[Media:MTR2000 Instruction - Field Service Manual 132-174 VHF Field Manual 68P81096E30-F.pdf|MTR2000 Instruction - Field Service Manual 132-174 VHF Field Manual 68P81096E30-F]]
 +
 
 +
[[Media:Instruction - Field Service Manual 335-405 MHz 6881099E80-F 0411508.pdf|Field Service Manual 335-405 MHz 6881099E80-F
 +
]] - Field Service Manual 335-405 MHz 6881099E80-F
 +
 
 +
[[media:Instruction - Field Service Manual 800-900 MHz 6881096E90-F 041508.pdf|Field Service Manual 800-900 MHz 6881096E90-F]] - Field Service Manual 800-900 MHz 6881096E90-F
 +
 
 +
[[Media:Instruction - Field Service Manual 6881096E25-G 041508.pdf|Field Service Manual 6881096E25-G]] - Field Service Manual 6881096E25-G
 +
 
 +
[[media:MTR2000 SCM Field service 6881096E32-E.pdf|Field service 6881096E32-E]] - SCM Field service 6881096E32
 +
 
 +
[[Media:MTR2000 MOTOTRBO™ Upgrade Quick Reference Guide 68012000068-B.pdf|TRBO/DMR Upgrade Quick Reference Guide 68012000068-B]]
 +
 
 +
[[Media:RSS Startup Manual 6881096E15-D.pdf|RSS Startup Manual 6881096E15]] - RSS Startup Manual
 +
 
 +
[[media:MTR2000 Rear-of-station (backplane) Connectors.pdf|MTR2000 Rear-of-station (backplane) connectors]]
 +
 
 +
== Depot Manuals ==
 +
[[Media:MTR2000 Depot Service Manual 132-174 MHz 68P81096E40-F.pdf|MTR2000 Depot Service Manual 132-174 MHz 68P81096E40-F]] - VHF Depot Service Manual 68P81096E40-F
 +
 
 +
[[media:MTR2000 UHF Depot-Service Manual 68P81096E35-A.pdf|UHF Depot-Service Manual 68P81096E35-A]] - UHF Depot-Service Manual 68P81096E35-A (SCAN)
 +
 
 +
[[media:MTR2000 Station Backplane.pdf|MTR2000 Station Backplane ]] - Station Backplane
 +
 
 +
 
 +
== Chip Manuals ==
 +
[[Media:MC68356 Signal Processing Communications Engine Users Manual Nov94.pdf|MC68356 manual]] - MC68356 Signal Processing Communications Engine Users Manual
 +
 
 +
[[media:Dallas DS2400 Silicon Serial Number.pdf|Dallas DS2400 Silicon Serial Number]]
  
 
= Pictures =  
 
= Pictures =  

Latest revision as of 11:40, 3 July 2022


This page is a collection of info on the MTR2000 and possibly MTR3000 repeaters.

The MTR2000 was Motorola's mid range repeater in the 2000's, designed to do analog and sit between the two mobiles and the Quantar at the high end. It's basically a quantar-lite, as it runs the same RTOS, pSOS+ and runs on the same Microprocessor, but an integrated version of it and the DSP chip.

Software

MTR2000 CPS R03.02.01

MTR2000 Firmware R03.04.03 for station ID 8F11111C - LATEST FIRMWARE

Mtr2000-OCR30403 cmp file for uploader to upgrade

28F800 image for MTR2000

Arduino Uno DS2401 Emulator for Station ID 8F11111C

Firmware

Every MTR2000 has an individual firmware package from Motorola much like the Quantar. It contains:

  • mtr_bpid-file (containing Station-ID)
  • firmware-file (i. e. ocr30403.cmp)
  • feature definition string-file (i.e. ocr30403.enc, individual file; needed to identify Serial number in Dallas DS4201 U101 on backplane)

As of now there is no known universal upgrade file for the MTR2000 as there is with the Quantar. A workaround using the OUTLAW depot software may be possible be I have not verified it. What does work is emulating the DS2401 to change the ID during programing via RSS to a known supported license key enabled upgrade.

Procedure to update via DS4201 emulation

This uses an Arduino Uno to emulate the 1 wire serial ID of the DS4201.

This procedure was developed by Chris, DG2NGI and formatted for the wiki.

Manuscript by Chris, DG2NGI to change Station ID of Motorola MTR2000 for firmware upgrade via RSS

  1. Save your codeplug first.
  2. Ensure your MTR2000 is working 100%
  3. Use Windows XP 32 bit with a real serial port or FTDI based USB port.
  4. Install Motorola MTR2000 RSS
  5. Download the codeplug and save it! Take screenshots of every alignment data as well
  6. With a serial terminal connect at 9600 8N1 to your MTR2000
  7. Send commands (you´ll see nothing during input!):
    dorss <enter>
    get bpn <enter>
  8. write down your backplane ID number (you can also see it in RSS as station ID)
  9. Remove backplane cover:

  • U100 on back plane Dallas DS4201


  2. You can see U100 a Dallas serial IC. Be careful and desolder it, hot air is a must. You will need to re-install it later.
    3. if you don't install this again the repeater will have Station ID "0000000".
  3. Connect the Arduino to your PC.
    • Install Arduino IDE on PC.
    • Load MTR2000-DS2401.ino sketch into Arduino IDE and add the "OneWireHub_library.zip" in Arduino IDE as library as well
    • In MTR2000-DS2401.ino sketch you may modify the DS2401 strings: Check all 4 postions:
      0x01, 0x1C, 0x11, 0xF1, 0x08, 0x00, 0x00 (for Station ID 8F1111C); first 0x01 is family code, last two 0x00 are always 0x00
  4. Connect pin 1 of U100 IC location on PCB to a ground-pin of Arduino Uno
  5. Connect pin 2 of U100 IC location on PCB to PIN 8 of Arduino


  • DS4201 Pinout

  • hookup of Dallas Chip temporary

  • Arduino hooked up to MTR

  • Arduino with Code

DS2401 1-Wire Ground-pin: first line of 3rd connector, pin #2 from right
DS2401 1-Wire signal-pin: first line of last connector, pin #8 from left
  2. Disconnect Arduino from PC and power it from an external power supply; otherwise you'll have signal integrity problems
  3. Power the MTR2000 again; The MTR2000 should recognize the Arduino as a DS2401 and load its station ID/backplane number.
    If you want to change this, the MTR2000 must be powered power down every time for at least 15 seconds so the ram in the station forgets the loaded data from DS2401 in the controller
  4. You can check actual station ID via Putty and serial commands
    dorss
    get bpn

  • Serial Terminal Output

  2. You should see i. e. BPN = 000008F1111C
  3. Open the Load RSS and use upgrade function to push the firmware to the station.
    Ensure it's the firmware file .ocr and feature definition file .enc for Station ID 8F11111C
  4. After flashing firmware and confirming it's working you can reinstall original DS2401 again
  5. Reload your saved codeplug again and check alignment data from screenshots and that the MTR2000 is not in alarm.

  • RSS

  • happy MRT2000


  • To unlock a locked MTR2000 just temporarily until next power cycle you can use the following commands via the serial port:
    dorss
    hw_id_check_off
    reset

firmware update notes

I'm not 100% sure on this, but I belive the firmware is locked to the base station from motorola using the .enc file that comes with it. Anyone have info on this?

I took the binary image from the 28f800 and did the following to make an image that can be flashed to the station with the OUTLAW program. 

srec_cat 28F800\ image\ for\ MTR2000.bin -binary  -offset -0x4000 -o 28F800MTR2000.srec -Motorola 32 -address-length=3 -line-length=270 -data-only

This should at least replicate what's in memory. Likely can take the raw uncompressed firmware file from the update and add it into the end of it.

the .CMP file is nothing other than LZSS compressed data. Specifically it's the SZDD file format, and COMPRESS.EXE and EXPAND.EXE from DOS can expand the file directly. The header of the CMP file is "0x535A444488F02733" or "SZDD..'3" ascii, hence the SZDD name.

Docs

The MTR has a depot manual, but it's not available AFIK. IF you have one, please tell me, I will happily send you a shipping label, have it scanned professionally and send it back all at my cost. We have a partial UHF and SCM manual now below!

The part number for the Depot Manual are 68P81096E40, and 68P81096E35, VHF/UHF respectively.

It's likely the RF circuits are identical (or close enough) between the Quantar and the MTR. For Example, the Power Amp uses the same pallet amplifiers/LPF/isolators as the Quantar does.


MTR2000 Install and Operation Manual 68P81096E20

MTR2000 Instruction - Field Service Manual 132-174 VHF Field Manual 68P81096E30-F

Field Service Manual 335-405 MHz 6881099E80-F - Field Service Manual 335-405 MHz 6881099E80-F

Field Service Manual 800-900 MHz 6881096E90-F - Field Service Manual 800-900 MHz 6881096E90-F

Field Service Manual 6881096E25-G - Field Service Manual 6881096E25-G

Field service 6881096E32-E - SCM Field service 6881096E32

TRBO/DMR Upgrade Quick Reference Guide 68012000068-B

RSS Startup Manual 6881096E15 - RSS Startup Manual

MTR2000 Rear-of-station (backplane) connectors

Depot Manuals

MTR2000 Depot Service Manual 132-174 MHz 68P81096E40-F - VHF Depot Service Manual 68P81096E40-F

UHF Depot-Service Manual 68P81096E35-A - UHF Depot-Service Manual 68P81096E35-A (SCAN)

MTR2000 Station Backplane - Station Backplane


Chip Manuals

MC68356 manual - MC68356 Signal Processing Communications Engine Users Manual

Dallas DS2400 Silicon Serial Number

Pictures

MTR2000 Station Control Module

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

  • MTR2000 SCM

MTR2000 VHF Exciter

  • MTR 2000 Exciter VHF 01

  • MTR 2000 Exciter VHF 02

  • MTR 2000 Exciter VHF 03

  • MTR 2000 Exciter VHF 04

  • MTR 2000 Exciter VHF 05

  • MTR 2000 Exciter VHF 06

  • MTR 2000 Exciter VHF 07

  • MTR 2000 Exciter VHF 08

  • MTR 2000 Exciter VHF 09

  • MTR 2000 Exciter VHF 10

  • MTR 2000 Exciter VHF 11

  • MTR 2000 Exciter VHF 12

  • MTR 2000 Exciter VHF 13

  • MTR 2000 Exciter VHF 14

  • MTR 2000 Exciter VHF 15


MTR2000 VHF Receiver

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

  • MTR2000 Receiver VHF R2 1627

MTR2000 VHF R1/R2 Low Power Amplifier

Note the two 150-174 MHz Isolators in series.

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA

  • MTR2000 VHF R1/2 Low Power PA


MTR2000 VHF R2 High Power Amplifier

  • MTR2000 Power Amp VHF R2 High Power 1663

  • MTR2000 Power Amp VHF R2 High Power 1664

  • MTR2000 Power Amp VHF R2 High Power 1665

  • MTR2000 Power Amp VHF R2 High Power 1666

  • MTR2000 Power Amp VHF R2 High Power 1667

  • MTR2000 Power Amp VHF R2 High Power 1668

  • MTR2000 Power Amp VHF R2 High Power 1669

  • MTR2000 Power Amp VHF R2 High Power 1670

  • MTR2000 Power Amp VHF R2 High Power 1671

  • MTR2000 Power Amp VHF R2 High Power 1672

  • MTR2000 Power Amp VHF R2 High Power 1673

  • MTR2000 Power Amp VHF R2 High Power 1674

  • MTR2000 Power Amp VHF R2 High Power 1675

  • MTR2000 Power Amp VHF R2 High Power 1676

  • MTR2000 Power Amp VHF R2 High Power 1677

  • MTR2000 Power Amp VHF R2 High Power 1678

  • MTR2000 Power Amp VHF R2 High Power 1679

Retrieved from "https://wiki.w9cr.net/index.php?title=MTR_Repeater&oldid=7184"