Regency RH256 User manual

Communications, inc.
INSTRUCTION MANUAL
Models RH256
RU 156

CONTENTS
I. Unpacking
II.
Maintenance
III.
Description
IV.
Installation
V.
Specifications
VI. Accessories
VII. Operation
Page
1
1
1-5
5
6-7
8
9 - 13
i

I. UNPACKING
Check to be sure the following items were
packed:
1 - Transceiver
l-
MA-83 Hand Held Microphone (Blk)
1-
~~-84 DC Power Cord w/5A in-line fuse
1-
MA-311 Blk Mounting Bracket
II. MAINTENANCE
Refer to a Regency Sales/Service Center for
servicing. The transceiver should be checked semi-
annually for proper operation.
WARNING: FCC regulations require that any repairs
and/or adjustments made to the transmitter of this
radio to be rendered under the supervision of a
technician holding a general radiotelephone license.
DO NOT TAMPER WITH INTERNAL ADJUSTMENTS.
III. DESCRIPTION
The RH256 and RU156 are sixteen-channel land
mobile transceivers. The RH256 operates in the VHF
frequency range in three bands. The RH256A operates
from 134 to 150 MHz; the RH256B operates from 150
to 162 MHz and the RH256C and RH256UK both operate
from 162 to 174 MHz.
The RH256UK is an RH256C but
instead of 25 KHzchannel spacing and +5 KHz maximum
system modulation deviation the radio is designed to
-l-

DESCRIPTION (Continued)
work in systems having 12.5 KHz channel spacing with
a maximum system deviation of +2.5 KHZ.
The RU156 operates in the UHF frequency range,
also in three bands. The RU156A operates from 421.4
to 450 MHz; the RU156B operates from 450 to 462 MHz,
and the RU156C operates from 462 to 512 MHz.
The radio can store up to sixteen channels with-
out battery backup.
All radios ctnne with CTCSS tone
and scanning capabilities. A monitor switch and a
night/day switch are also standard.
(Refer to Figure 1 for the following descriptions.)
VOLUME CONTROL/ON-OFF SWITCH
This control varies the speaker volume. Clock-
wise rotation turns the radio on and increases the
volume. When the radio is turned off and back on it
will revert back to the state it was in before being
switched off. The radio will remember the last
state it was in even if the power plug is dis-
connected.
SQUELCH CONTROL
The squelch control is used to eliminate the
speaker noise when not receiving a transmission.
Move
the control clockwise until noise is heard (if in the
SCAN mode the receiver will stop scanning).
Then
move the control counter-clockwise until the speaker
noise is squelched (if in the SCAN mode the receiver
will start to scan approximately two seconds after
the speaker squelches).
-2-

STATUS LED CHANNEL DISPLAY
.
k IL I
1
MONITOR
SQUELCH CONTROL’ \ NIGHT/DAY SWITCH

DESCRIPTION (Continued)
MONITOR SWITCH
Placing this switch in the "MON" position
allows the user to monitor the channel when the
CTCSS decoder is operating.
NIGHT/DAY SWITCH
Placing this switch in the "DAY" position
places the display lights at maximum luminosity and
does not light the keyboard. In the "NIGHT" position
the display light's luminosity is decreased and the
keyboard is illuminated.
STATUS LEDs
There are four status LEDs located to the left
of the channel display.
TX - When lit indicates that the transmitter is
SCAN
MSG
PRIOR
activated. This is accomplished by removing
the microphone from the hang-up clip (off-
hook condition) and pressing the push-to-talk
switch on the microphone.
When lit indicates that the radio is in the
SCAN mode. Pressing the SCAN button on the
keyboard puts the radio in the SCAN mode.
When lit indicates that a message has been
received. The radio's CTCSS decoder must be
activated in order for this LED to function.
If a message has been received, going off hook
or changing the channel will reset the LED
to its OFF state.
When lit indicates that the radio's priority
function has been selected. Pressing the
Prior button on the keyboard will activate
and deactivate the PRIORITY function.
-4-

DESCRIPTION (Continued)
CHANNEL DISPLAY
Displays the current channel the radio is
operating on. The channels are selected by pressing
the appropriate button(s) on the keyboard.
IV. INSTALLATION
The radio is designed for mobile operation in
a vehicle with a 12V negative ground system. The red
wire (with in-line fuse) is connected to the positive
battery terminal and the black wire connected to the
negative battery terminal.
Mount the radio in an accessible but not cramped
area. Allow a few inches clearance on the right side
to allow the transmitter's heat to dissipate.
Mount the microphone hang-up clip in a con-
venient location making sure the clip is grounded.
In many new vehicles with a plastic dashboard, it
may be necessary to add a ground wire to the clip to
insure a good ground connection.
It is recommended that the radio and antenna
installation be performed by a technician experienced
in two-way radio installation.
WARNING: The FCC requires that the transmitter be
adjusted and set on frequency by a technician holding
a general radiotelephone license.
I
NOTE: The transceiver is equipped with reverse
polarity protection. In the event that power leads
are reversed the fuse will blow; connect the power
leads to the correct polarity and install a new
SA fuse.
-5-

V.
SPECIFICATIONS
I.
GENERAL
Operating Temperature Range
.............
Size ........................
........................
Weight ........................
Primary Current drain @ 13.8 VDC
Transmit ......................
Receive (At Rated Audio Power)
...........
Receive (Squelched)
................
Antenna Impedance
..................
Frequency Stability
.................
II. RECEIVER
Sensitivity
12dBSINAD .....................
20dB Quieting
...................
Selectivity Adjacent Channel (EIA SINAD)
.......
Intermodulation Rejection
..............
Image and Spurious Response
.............
Modulation Acceptance Bandwidth
...........
Audio Output @ 5% Distortion ............
FCC Certification
..................
III.
TRANSMITTER
RF Power Output (@ 13.8 VDC)
.............
Spurious and Harmonic Suppression
..........
Audio Frequency Distortion
..............
Modulation Deviation - Adjustment Range
.......
FCC Emission Designator
...............
FCC Transmitter Type Acceptance
...........
*Allow 5 min.
warm-up time and add 150 mA below O°C am]:
-6-

-
............
-30OC to +60°C (-22O to l50OF)
............ 6
l/2 x 2 3/4 x 10 3/4 inches
............
16.5 x 7 x 27.3 cm
............ 4 lbs. 14
02s. (mass 2.22 kg)
k
............
5 Amps*
............
l.lA Max*
............
600 mA Max*
............
50 ohms
............
.0005%X
............
.35jJv
............
.5ow
............
70dB
............
70dB
............
70dB
............ +7.5 KHZ
............
5 Watts
............ Part 15, Subpart C
............
15 Watts (RU156) 25 Watts (RH256)
............
-58dB (RUl56) -60dB (RH256)
............
3% Max
............
oto -+7 KHZ
............
16F3
............ Part 2, 21, 81, 90

VI. ACCESSORIES
MA-35
MA-48
MA-79
MA-83
MA-84
MA-87
MA-93
MA-108
MA-126
MA-311BLK
MA-316
MA-322
P1412
Quick Mount Thumb Bolts
5 Watt Horn Speaker
Telephone Handset
Hand Held Microphone (Black)
SA DC Power Cord
DC Power Cord w/Cigarette
Lighter Adapter
Split Bar Desk Microphone (Black)
External Speaker
Telephone Handset w/hookswitch
Mounting Bracket (Black)
Split Bar Desk Microphone (Beige)
DC Power Cord for P1412
12A 13VDC Power Supply
-8-

VII. OPERATION
A. Receiver Modes
There are two receiver modes, manual and scan.
The transceiver will power up on the channel and the
mode the radio was in before the power was inter-
rupted.
Manual Mode
The manual mode is entered by pressing the
MANUAL button or by selecting a channel. Channels
1 through 10 are selected by pressing the cor-
responding channel number on the keyboard, but when
selecting Channel 1 the display will flash a "1"
in the ten's digit. The "1" flashes in the ten's
position while the microcomputer waits for a second
digit entry. If in about two seconds a second
digit is not entered the "1"i.s displayed in the
one's digit position; the radio is now on Channel 1.
If a second number is pressed (a number 1
through 6 on the keyboard) the radio will select
the corresponding channel (11 through 16).
While in the manual mode the radio operates
on the displayed channel. The scan LED will be off.
Scan Mode
Allows the radio to monitor activity on more
than one channel. Pressing the SCAN button on
the keyboard will place the radio in the scan mode.
The scan LED will be on. The radio will scan the
channels placed into scan list only if the
microphone is on-hook (mic hang-up button connected
to chassis ground) and the squelch control adjusted
to squelch the radio (without a carrier present).
With the radio properly set up to scan, the scan
-9-

OPERATION (Continued)
LED will blink and the display will turn off while
the radio scans. When there is activity on one of
the channels in the scan list the scan LED will be
held on and the active channel will be displayed.
After the signal drops out the radio will stay
on the channel for a period of one-half to two
seconds (dealer programmable), at which time the
radio starts scanning again. If the microphone is
lifted off-hook before the radio starts to scan
again the radio will remain locked up on that
channel.
The radio will go to the priority channel
when the microphone is lifted off-hook and the
radio is not locked on an active channel. When the
microphone is placed back in the hang-up clip the
radio resumes scanning.
Programming the Scan List
Entering a channel into the scan list is
accomplished by pressing the channel to be entered
and the ENTER button on the keyboard.
To delete a channel from the scan list press
the channel to be deleted and press the DELETE
button on the keyboard. The channel will be deleted
and the next channel in the scan list will be dis-
played.
If deleting consecutive channels in the scan
list, it is not necessary to enter all the channels.
The channels can be deleted by pressing the first
channel number of the sequence; then press the
DELETE button as many times as there are channels
to delete. For example, to delete channels 3, 4,
and 5 in the scan list select channel 3 and press
the DELETE button three times.
- 10 -

OPERATION (Continued)
To review the channels in the scan list press
the MANUAL button on the keyboard. Each time the
MANUAL button is pressed the next higher channel
that is in the scan list is displayed.
The Priority Function
The priority function allows the operator to
listen to one channel (non-priority channel) and
not miss an important message on another, more
important channel (priority channel). Pressing the
PRIOR button on the keyboard will enable or disable
the priority function. When the priority LED is
lit the priority function is enabled.
To change the priority channel, select the
channel to become the priority channel and press
the PRO PRIOR and ENTER buttons on the keyboard
(in that order).
Priority-Manual Operation
The squelch control must be set, squelching
the radio, to allow the priority function to
operate. When the radio is listening on a non-
priority channel the radio will look at the
priority channel occasionally. If the priority
channel is active the radio will stop on that
channel and monitor the transmission. The radio
does this regardless of what is happening on the
non-priority channel.
Lifting the microphone off-hook causes the
radio to revert to the priority channel. When the
microphone is placed back on-hook the radio,
provided there is no further communication on the
priority channel, will go back to the non-priority
channel the radio was on before.
- 11 -

- 12 -
OPERATION (Continued)
Priority-Scan Operation
Operation of the radio with the priority function
selected in the scan mode is similar to that of the
non-priority scan mode with one exception. If the
radio stops scanning ("locks up") on a non-priority
channel the radio will occasionally look at the
priority channel. If there is activity on the
priority channel the radio will stay on the priority
channel; if not, the radio will go back to the
channel that was interrupted.
B.
Transmitter
To transmit, select the desired channel, lift
the microphone off-hook, monitor to be sure the
channel is not in use, key the transmitter and speak
into the microphone. To key the transmitter press
the push-to-talk (PTT) button on the side of the
microphone. Two-way conversation is accomplished by
the push-to-talk, release-to-listen operation of the
PTT button on the microphone. When transmitting a
message make the conversation compendious and clear.
Note that the PTT button on the microphone is
not enabled when the microphone is on-hook
(microphone hang-up button connected to chassis
ground). Also, while transmitting, the keyboard is
disabled so accidental pressing of a button on the
keyboard will not interrupt the transmission.

USING THE KEYBOARD
OPERATION ACTION
1. Manual Mode
selecting Channel .Press than. No.
on keyboard
Enable Priority Function .press PRIOR on
keyboard
Disable Priority Function .press PRIOR on
keyboard
REACTION
Chan. No. displayed
Priority LED lights
Priority LED Off
2.
Scan Mode
SC.3" .With mic off-hook
adj. squelch control
to squelch radio
.Hang up mic
.Press SCAN on Chan. display blanks
keyboard Scan LED blinks
Priority Scan .Adjust squelch control
to squelch radio
.Hang up mic
.press PRIOR on
keyboard priority LED lights
Enter Chan. into Scan
List
Deleting Chan. From
Scan List
.press SCAN on Chan. display blanks
keyboard Scan LED blinks
.Select channel to enter Channel displayed
.Press ENTER on Chan. display blinks
keyboard off then back on
.Select channel Chan. displayed
to delete
Review Scan List
.Press DELETE on
keyboard
.Press MANUAL on
keyboard
Chan. display blinks
off then back on
Chan. display advances to
than. in scan list
Next channel i? scan
list displayed
3. Priority Function
Changing Priority .select priority
channel Chan. No. displayed
.press PRO PRIOR
on keyboard Chan. No. blinks
Reviewing Priority
Channel
.Press ENTER on
keyboard
.Press and hold PRIOR
on keyboard
Chan. No. stops blinking
Priority channel displayed