User Manual
Table Of Contents
- 1GENERAL
- 1.1Introduction
- 1.2Interim Operation
- 1.3Manual Organization
- 1.4UT-4R400 Transmitter Family Models
- 1.5Performance Specifications
- 1.5.1General
- 1.5.2Audio Specifications
- 1.5.3Physical Specifications
- 2THEORY OF OPERATION
- 2.1General
- 2.2Power Supply
- 2.3High Speed Serial Interconnect
- 2.4Audio Circuits
- 2.5PTT Circuitry
- 2.6Microprocessor Board
- 2.7Channel and Bank Selection
- 2.7.1Channel Select Line Mapping
- 2.8Jumper Functions and standard configuration
- 2.9Hang Timer Selection
- 2.10Kerchunk noise selection
- 2.11Test Points
- 2.12Connector Pinouts
- 2.12.1Connector J9
- 2.12.2Connector P1
- 2.13Transmitter Programming
- 2.13.1Transmitter Wide Options
- 2.13.1.1Frequency Band
- 2.13.1.2Source ID
- 2.13.1.3Secure Hardware Equipped
- 2.13.1.4Timeout Options
- 2.13.2Channel Wide Settings
- 2.13.2.1Channel Name
- 2.13.2.2Frequency
- 2.13.2.3Analog Bandwidth
- 2.13.2.4Deviation
- 2.13.2.5Channel Type
- 2.13.2.6Audio Pre-emphasis
- 2.13.2.7Timeout Value
- 2.13.2.8Project 25 Squelch Settings: Network Access Code (NAC)
- 2.13.2.9Project 25 Squelch Settings: Talk Group ID (TGID)
- 2.13.2.10Analog Signaling Settings: Signaling
- 2.13.2.11Analog Signaling Settings: CTCSS Tone
- 2.13.2.12Analog Signaling Settings: Reverse Burst
- 2.13.2.13Analog Signaling Settings: DCS Code
- 2.13.2.14Analog Signaling Settings: Turnoff Code
- 2.13.2.15Analog Squelch Settings: Invert DCS
- 3Transmitter Assembly and Adjustment
- 3.1Frequency Change
- 3.2Minor Frequency Change
- 3.3Major Frequency Change
- 3.4Digital Signal Processor Board Alignment
- 3.4.1Radio Service Software
- 3.4.2Radio Programming Interface Module Interconnection
- 3.4.3Reference Oscillator Adjustment
- 3.4.4Transmitter Deviation Balance Adjustment
- 3.4.5Transmitter Deviation Limit Adjustment
- 3.4.6Audio Level Alignment
- 3.4.7Amplifier Alignment
- 3.5Recommended Test Equipment List
- 3.6Repair Note
- 3.7Printed Circuit board Numbering Convention
- 4Repeater System Configuration
- 4.1Interim Repeater
- 4.1.1Repeater Interconnect Cable Pinout
- 4.2Project 25 Compliant Repeater
- 4.3Repeater System Troubleshooting
- 5ILLUSTRATIONS
- 5.1Digital Repeater Transmitter Front Panel
- 5.2Digital Repeater Transmitter Exploded View
- 5.3Digital Repeater Transmitter Block Diagram (Interim Mode)
- 5.4Digital Repeater Transmitter Schematic Diagram
- 5.5Digital Repeater Transmitter Main Board Component Layout (Bottom)
- 5.6Digital Repeater Transmitter Main Board Component Layout (Top)
- 5.7Digital Repeater Microprocessor Board Component Layout (Bottom)
- 5.8Digital Repeater Microprocessor Board Component Layout (Top)
- 6PARTS LIST
- 6.1Digital Repeater Transmitter Main Board Parts List
- 6.1.1Digital Repeater Transmitter Main Board Electrical Parts List
- 6.1.2Digital Repeater Transmitter Main Board Mechanical Parts List
- 6.2Digital Repeater Microprocessor Board Parts List
- 6.2.1Digital Repeater Microprocessor Board Electrical Parts List
- 6.2.2Digital Transmitter Additional PCBs
- 7REVISION HISTORY
DE
DANIELS
ELECTRONICS
UT-4R400 UHF Project 25
Digital
Transmitter
Instruction
Manual
2-7
Transmitter
settings are divided into two categories, Radio Wide options, which apply at all times,
and Channel Wide options, which can be
programmed
differently
for each channel. When the
Transmitter
menu is
selected
from the main screen, both the Radio Wide and Channel Wide
options for the current
channel
are displayed.
The RSS may be used to save a
Transmitter
configuration
to disk. This function allows a radio
shop to save a
“standard”
configuration, and use it as a starting
configuration
for all Transmitters.
An
archive
of
configurations
from each radio system in
operation
may also be kept so that
replacement
radios can be
programmed
easily.
2.13.1
Transmitter
Wide
Options
Several options may be set which
affect
the
operation
of the
Transmitter
on a global basis.
2.13.1.1 Frequency Band
There are four Frequency Bands
available
for
Transmitters:
VHF (low band) 136 - 150 MHz,
VHF (high band) 150 - 174 MHz,
UHF (low band) 406 - 430 MHz,
UHF (high band) 450 - 470 MHz.
When the Frequency Band is changed, the
Frequency
field in every
Transmitter
channel
will be
changed to the lowest frequency in the band.
Warning:
Daniels
Transmitters
are
built
differently
depending upon the band. Therefore, you
cannot change a
transmitter
to a
different
band without a hardware change.
2.13.1.2
Source
ID
This field contains the unique
Transmitter
Source ID in
Hexadecimal.
(There is no need to enter an
initial
‘$’character.) The
default
value is $1. The spin button to the right of this field allows you to
incrementally
change the Source ID.
The Source ID will be
transmitted
along with every P25 voice frame and each
Transmitter
should
have a
different
number.
2.13.1.3
Secure
Hardware
Equipped
This
setting
is
currently
not used for
Repeater
Transmitters, but is supported for
programming
of
Daniels
P25 Base Transmitters. Correct
repeater
operation
does not require that an
encrypted
signal be decrypted. An
external
Repeater
Controller
may
include
encryption
and
decryption
hardware for those cases, which require it.
2.13.1.4
Timeout
Options
The
transmitter
provides a
selectable
timeout
timer
for each channel, which causes the
transmitter
to be de-keyed after the
selected
interval
of continuous transmission, has been completed. Four
transmitter
timeout
values are provided, and one of the
timeout
values may be used in each of the
32
programmable
channels. The range of values is from 15 to 465 seconds in
increments
of 15
seconds,
or
Infinite
Time
may be chosen