The stylized “Daniels Electronics Ltd.” and “DE” logo are registered
Canadian and US trademarks of Daniels Electronics Ltd.
The stylized “Daniels Electronics Ltd.” and “DE” logo are trademarks of
Daniels Electronics Ltd.
IM08-MT-4E-TXRX
Project 1106
July 2008
Daniels Electronics Ltd.
Victoria, BC
PRINTED IN CANADA
ii
DOCUMENT CONTROL
DOCUMENT REVISION
DEFINITION
This document has been produced, veried and controlled in
accordance with Daniels Electronics’ Quality Management System
requirements. Please report any errors or problems to Daniels
Electronics’ Customer Service Department.
Daniels Electronics Ltd. utilizes a three-level revision system. This
system enables Daniels to identify the signicance of a revision.
Each element of the revision number signies the scope of change as
described in the diagram below.
1-0-0
Major Revisions: The result of a major
change to product function, process or
requirements.
Minor Revisions: The result of a
minor change to product, process or
requirements.
Editorial Revisions: The result of typing
corrections or changes in formatting,
grammar or wording.
Three-level revision numbers start at 1-0-0 for the rst release. The
appropriate element of the revision number is incremented by 1 for each
subsequent revision, causing any digits to the right to be reset to 0.
For example:
If the current revision = 2-1-1 Then the next major revision = 3-0-0
If the current revision = 4-3-1 Then the next minor revision = 4-4-0
If the current revision = 3-2-2 Then the next editorial revision = 3-2-3
NOTE
The complete revision history is provided at the back of the document.
The user’s authority to operate this equipment could be revoked through any changes or
modications not expressly approved by Daniels Electronics Ltd.
The AMBE+2™ voice coding Technology embodied in this product is protected by intellectual
property rights including patent rights, copyrights and trade secrets of Digital Voice Systems,
Inc. This voice coding Technology is licensed solely for use within this Communications
Equipment. The user of this Technology is explicitly prohibited from attempting to extract,
remove, decompile, reverse engineer, or disassemble the Object Code, or in any other
way convert the Object Code into a human-readable form. U.S. Patent Nos. #5,870,405,
#5,826,222, #5,754,974, #5,701,390, #5,715,365, #5,649,050, #5,630,011, #5,581,656,
#5,517,511, #5,491,772, #5,247,579, #5,226,084 and #5,195,166.
The design of this equipment is subject to change due to continuous development. This
equipment may incorporate minor changes in detail from the information contained in this
manual.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules and ICES 03. These limits are designed
to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
- Consult the dealer or an experienced radio / TV technician for help.
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device.
Exposure to radio frequency (RF) energy has been identied as a potential environmental factor that must be
considered before a radio transmitter can be authorized or licensed. The FCC and IC have therefore developed
maximum permissible exposure (MPE) limits for eld strength and power density, listed in FCC 47 CFR 1.1310
and IC RSS-102 Issue 2 Sect 4. The FCC has furthermore determined that determination of compliance with
these exposure limits, and preparation of an Environmental Assessment (EA) if the limits are exceeded, is
necessary only for facilities, operations and transmitters that fall into certain risk categories, listed in FCC 47
CFR 1.1307 (b), Table 1. All other facilities, operations and transmitters are categorically excluded from making
such studies or preparing an EA, except as indicated in FCC 47 CFR 1.1307 (c) and (d).
Revised FCC OET Bulletin 65 (Edition 97-01) and IC RSS-102 Issue 2 provide assistance in determining
whether a proposed or existing transmitting facility, operation or device complies with RF exposure limits. In
accordance with OET Bulletin 65, FCC 47 CFR 1.1307 (b) and RSS-102 Issue Sect 2.5, this Daniels Electronics
Ltd. transmitter is categorically excluded from routine evaluation or preparing an EA for RF emissions and this
exclusion is sufcient basis for assuming compliance with FCC/IC MPE limits. This exclusion is subject to the
limits specied in FCC 47 CFR 1.1307 (b), 1.1310 and IC RSS-102 Issue 2 Sect 4. Daniels Electronics Ltd. has
no reason to believe that this excluded transmitter encompasses exceptional characteristics that could cause
non-compliance.
Notes:
• The FCC and IC’s exposure guidelines constitute exposure limits, not emission limits. They are relevant
to locations that are accessible to workers or members of the public. Such access can be restricted or
controlled by appropriate means (i.e., fences, warning signs, etc.).
iii
• The FCC and IC’s limits apply cumulatively to all sources of RF emissions affecting a given site. Sites
exceeding these limits are subject to an EA and must provide test reports indicating compliance.
RF Safety Guidelines and Information
Base and Repeater radio transmitters are designed to generate and radiate RF energy by means of an external
antenna, typically mounted at a signicant height above ground to provide adequate signal coverage. To
reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the
equivalent isotropically radiated power (EIRP) is not more than that permitted for successful communication.
The following antenna installation guidelines are extracted from Appendix A from OET Bulletin 65 and must be
adhered to in order to ensure RF exposure compliance:
Non-building-mounted Antennas:
Height above ground level to lowest point of antenna ≥ 10 m or Power ≤ 1000 W ERP (1640 W EIRP)
Building-mounted Antennas:
Power ≤ 1000 W ERP (1640 W EIRP)
The following RF Safety Guidelines should be observed when working in or around transmitter sites:
• Do not work on or around any transmitting antenna while RF power is applied.
• Before working on an antenna, disable the appropriate transmitter and ensure a “DO NOT USE” or
similar sign is placed on or near the PTT or key-up control.
• Assume all antennas are active unless specically indicated otherwise.
• Never operate a transmitter with the cover removed.
• Ensure all personnel entering a transmitter site have electromagnetic energy awareness training.
For more information on RF energy exposure and compliance, please refer to the following:
1. FCC Code of Regulations; 47 CFR 1.1307 and 1.1310.
2. FCC OET Bulletin 65, Edition 97-01, “Evaluating Compliance with FCC Guidelines for
Human Exposure to Radiofrequency Electromagnetic Fields.”
3. http://www.fcc.gov/oet/rfsafety/.
4. IC RSS-102 Issue 2, “Radio Frequency Exposure Compliance of Radio Communication Apparatus.”
The MT-4E Receiver and Transmitter are FM
radio modules capable of analog operation
in 12.5 kHz (narrow band) or 25 kHz (wide
band) channels. A rmware upgrade may be
purchased to allow P25 digital operation. The
VHF modules operate over the band from 136
to 174 MHz and the UHF modules operate
over the band from 406 to 470 MHz and 799 to
869 MHz (transmitter) or 406 to 430 MHz, 450
to 470 MHz, 470 to 520 MHz, 799 to 824 MHz
and 851 to 869 MHz (receiver). Modular design
allows each of the Receiver and Transmitter’s
internal modules to be individually assembled
and tested, which facilitates construction, tuning,
and general maintenance.
The MT-4E Receiver and Transmitter combine
state of the art performance in a compact
modular enclosure for applications ranging from
remote mountain top repeaters to congested
urban radio environments. Each module is
characterized by dependable, low maintenance
performance under the most severe
environmental conditions.
The MT-4E series is compatible with all Daniels’
subrack and base station enclosures. It supports
a basic analog interface, and may be used in
a mixed system with MT-3 and MT-4 series
Receivers and Transmitters.
P25 Digital Mode
When the P25 rmware upgrade is purchased,
the MT-4E family of receivers and transmitters
may be congured for P25 digital operation,
or mixed mode operation. In a repeater
conguration, the receiver passes the complete
P25 digital voice packet directly to the
transmitter so no P25 digital information is lost.
All P25 specications, operational description
and information contained in this Instruction
Manual require the P25 rmware upgrade to
function. If the MT-4E Receiver and Transmitter
are purchased without the P25 rmware
upgrade, the radio will program and operate in
analog mode only.
NOTE: The transmitter is not to be operated as a
repeater under an existing base station license.
The MT-4E Receiver and Transmitter are
primarily software controlled radio modules,
allowing tuning, programming and maintenance
to be done via software service with few
hardware adjustments required.
The Receiver and Transmitter are capable of decoding and encoding secure communications if a
DES-OFB/AES encryption module is installed. To successfully decode or encode a transmission, the
encryption module must be programmed with a valid encryption key using the Motorola KVL 3000+
or KVL 3000 Keyloader in conjunction with a Daniels Keyloader Cable. The Daniels Keyloader cable
plugs into the front panel RJ45 jack on the front of the Receiver or Transmitter module. For correct
keyloading, the KVL must be setup to operate using ASN mode. ASN Mode is the default mode of
the KVL 3000 and an optional mode of the KVL 3000+. Consult the instructions for the Keyloader
for details on loading a key. A loaded key may be cleared by pulling rst the CLEAR KEYS 1 then
the CLEAR KEYS 2 inputs to ground 500ms apart. Alternately, the CI-BC-4E Base Controller may
be used to clear the keys for all modules in a system with a single key press of the switch marked
ZEROIZE KEY. The CI-BC-4E Base Controller can also be used to control whether the transmitter
outputs a secure or a clear signal.
Firmware Upgrades
Receiver and Transmitter rmware upgrading is performed with the PC-based Firmware Upgrade
software. A type A to 5 pin mini-type B USB cable is used to connect the USB port of an IBM
compatible computer to the USB port on the front panel of the Receiver or Transmitter module.
Firmware upgrades can be found on the Daniels Electronics Ltd. website at www.danelec.com.
MT-4E Receiver Family Models
There are eight models in the MT-4E Receiver family covering the 136 to 174 MHz, 406 to 430 MHz,
450 to 470 MHz and 470 to 520 MHz bands while operating in 12.5 kHz, 15 kHz, 25 kHz, or 30 kHz
occupied channel bandwidths. The receivers are classied as Class A or Class B. The eight models
are as follows:
VR-4E150-A0-000synthesized, 136-174 MHz band, 12.5/15/25/30 kHz channels; Class A
UR-4E420-A0-000synthesized, 406 - 430 MHz band, 12.5/15/25/30 kHz channels; Class A
UR-4E460-A0-000synthesized, 450 - 470 MHz band, 12.5/15/25/30 kHz channels; Class A
UR-4E500-A0-000synthesized, 470 - 520 MHz band, 12.5/15/25/30 kHz channels; Class A
VR-4E150-00-000synthesized, 136-174 MHz band, 12.5/15/25/30 kHz channels; Class B
UR-4E420-00-000synthesized, 406 - 430 MHz band, 12.5/15/25/30 kHz channels; Class B
UR-4E460-00-000synthesized, 450 - 470 MHz band, 12.5/15/25/30 kHz channels; Class B
UR-4E500-00-000synthesized, 470 - 520 MHz band, 12.5/15/25/30 kHz channels; Class B
UR-4E800-A0-000synthesized, 799 - 824 MHz band, 12.5/25 kHz channels; Class A
UR-4E850-A0-000synthesized, 851 - 869 MHz band, 12.5/25 kHz channels; Class A
COR Interface:150 mA, 50 V open drain power MOSFET
Supply Voltage:+13.8 VDC Nominal (range +10 to +17 VDC)
+9.5 VDC Regulated
Supply Current:Class A;
< 250 mA; with no encryption module installed
< 280 mA; with encryption module installed
Class B;
< 105 mA; with no encryption module installed
< 135 mA; with encryption module installed
Operating Temperature Range:-30°C to +60°C
Operating Humidity:95 % RH (non-condensing) at +25°C
CTCSS Decode:Programmable to any of 42 CTCSS tones
DCS Decode:Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected
IC Certication No.:n/a - Declaration of Conformity (DOC)
FCC ID:n/a - Declaration of Conformity (DOC)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
MT-4E Transmitter Family Models
There are three models in the MT-4E Transmitter family covering the 136 to 174 MHz, 406 to
470 MHz bands, 470 to 520 MHz and 799 to 869 MHz. The four models are as follows: