Uniden UH400SX-RM, UH500SX-RM, UH400SX, UH500SX User Manual

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

UHF RADIO TRANSCEIVER

UH400SX

UH400SX-RM

UH500SX

UH500SX-RM

OWNER’S MANUAL

uh400sx, uh500sx, uh400sx-RM, uhI Iuh400sx, uh500sx, uh400sx-RM, uhI I 1/2/08 1:31:20 PM1/2/08 1:31:20 PM

I

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

II

uh400sx, uh500sx, uh400sx-RM, uhII IIuh400sx, uh500sx, uh400sx-RM, uhII II 1/2/08 1:31:21 PM1/2/08 1:31:21 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Contents

Introduction

Features ............................................................................................................................................3

Preventive Maintenance ....................................................................................................................4

Troubleshooting .................................................................................................................................4

Controls / Connectors ...........................................................................................................................5

Indicators ...............................................................................................................................................9

Included with Your UHF CB Radio .....................................................................................................10

Optional Accessories .........................................................................................................................11

DIN-E Installation (UH500SX, UH500SX-RM only) ............................................................................12

Connecting the Microphone ............................................................................................................... 14

Mounting the MIC Hanger ................................................................................................................... 15

Operation

Turning on the Power .....................................................................................................................17

Setting the Manual Squelch (Base only) ......................................................................................... 17

Setting the Auto Squelch .................................................................................................................18

Monitor ............................................................................................................................................ 19

Selecting a Channel ........................................................................................................................ 19

Programming the Instant Priority Channel .....................................................................................20

Recalling the Instant Channel .........................................................................................................20

Transmitting .....................................................................................................................................20

Call Function ................................................................................................................................... 20

Dual Watch ......................................................................................................................................20

Using Repeater Channels ............................................................................................................... 21

Operating the UHF CB Radio in Duplex Mode ...............................................................................22

Scanning ........................................................................................................................................ 22

Open Scan (OS) Mode ....................................................................................................................23

Group Scan (GS) Mode ..................................................................................................................23

Priority Watch .................................................................................................................................. 24

Add/Remove Channels from SCAN Memory ................................................................................. 24

40 RX Channels .............................................................................................................................. 25

Manual Programming ...................................................................................................................... 25

Deleting a programmed RX Channel frequency .............................................................................25

Selecting the Call tone ....................................................................................................................26

Roger Beep .....................................................................................................................................26

Busy Channel Lockout ...................................................................................................................27

VOX Operation (optional VOX headset required) ...........................................................................27

CTCSS (Continuous Tone Coded Squelch System) ...................................................................... 28

DCS (Digital Coded Squelch) ..........................................................................................................28

Beep On/Off .................................................................................................................................... 29

Back Light .......................................................................................................................................29

LCD Contrast for Remote SPK/MIC ................................................................................................30

UHF CB Channels & Frequency List .................................................................................................31

CTCSS & DCS Code List ....................................................................................................................32

Warranty ...............................................................................................................................................33

1

uh400sx, uh500sx, uh400sx-RM, uhSec1:1 Sec1:1uh400sx, uh500sx, uh400sx-RM, uhSec1:1 Sec1:1 1/2/08 1:31:21 PM1/2/08 1:31:21 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

2

uh400sx, uh500sx, uh400sx-RM, uhSec1:2 Sec1:2uh400sx, uh500sx, uh400sx-RM, uhSec1:2 Sec1:2 1/2/08 1:31:21 PM1/2/08 1:31:21 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Introduction

The Uniden UH400SX, UH400SX-RM, UH500SX and UH500SX-RM is designed to provide
you with years of trouble free service. Its rugged components and materials are capable of
withstanding harsh environments. Please read this Operating Manual carefully to ensure you
gain the optimum performance of the unit.

The citizen band radio service is licenced in Australia by ACMA
Radio-communications (Citizen Band Radio Stations) Class Licence and in
New Zealand by MED General User Licence for Citizen Band Radio and
operation is subject to conditions contained in those licenses.

Features

Transmit & Receive FM 40CH

•
(UHF- CB, TX Power 5W)*

40 Programmable Receive channels

•
(450 - 512MHz in 12.5khz steps)

LCD Display with Backlight

•
LCD Backlight brightness control

•

(“HI”, “LO”, “Off”)

Compact Size**

•
Mobile DIN Size***

•
Front Fire Speaker***

•
Signal Strength/ Power Meter

•
Instant Channel Programming

•
One touch Instant Channel recalling

•
Dual Watch with Instant Channel

•
Duplex Capability (from CH01 - CH08

•

per channel)

Group Scan and Priority Channel

•

Watch

Open Scan

•
Scan Channel Memory On/Off

•

separately with Open Scan, Group
Scan

Rotary Channel Select

•
Busy Channel Lock-out Function

•
Roger Beep Function On/Off

•

5 Different Call Tones

•
38 Built-in CTCSS (Continuous Tone

•

Coded Squelch System) and 104
additional DCS (Digital Coded Squelch)
codes that are user selectable

Volume Control with Power On/Off

•

Push Switch

VOX (Voice Activated Function)

•
10 Step VOX Mic sensitivity adjustment

•
Remote LCD Speaker Microphone

•

(Remote SPK/MIC)****

Front and Rear MIC Jacks for

•

increased mounting options

Variable Squelch Level adjust or Auto

•

Squelch with Remote SPK/MIC

* Transmission is inhibited at CH22 and
CH23
** UH400SX
*** UH500SX
****The optional Remote SPK/MIC is
included with UH400SX-RM and UH­500SX-RM models.

3

uh400sx, uh500sx, uh400sx-RM, uhSec1:3 Sec1:3uh400sx, uh500sx, uh400sx-RM, uhSec1:3 Sec1:3 1/2/08 1:31:21 PM1/2/08 1:31:21 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Introduction

Preventive Maintenance:

The following system checks should be made every six to twelve months:

Check the Standing Wave Ratio (SWR).

•

Inspect the tightness of all electrical connections.

•

Inspect the antenna coaxial cable for wear or breaks on the shielding.

•

Inspect the tightness of all screws and other mounting hardware.

•

Troubleshooting:

Should the unit malfunction or perform poorly, follow these procedures:
If the transceiver is completely inoperative: Check the power cord and fuse.
If there is trouble with receiving: Check the VOLUME control setting. Be sure the SQUELCH is
adjusted properly. Possibly the radio is over-squelched.

If there is trouble with transmitting: Check that the transmission line (coaxial cable) is securely
connected to the ANTENNA connector. Check that the antenna is fully extended for proper
operation. Check that all transmission line (coaxial cable) connections are secure and free of
corrosion.

Blackening may occur on the Liquid Crystal Display if the UHF CB Radio or
Remote SPK/MIC has been subjected to extreme high temperature (above
60°C). This is not a fault. Normal LCD operation resumes when the temperature
stabilizes back to standard operating condition (0-55°C).

4

uh400sx, uh500sx, uh400sx-RM, uhSec1:4 Sec1:4uh400sx, uh500sx, uh400sx-RM, uhSec1:4 Sec1:4 1/2/08 1:31:21 PM1/2/08 1:31:21 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Controls/Connectors

UH400SX Front View

1

2 3 4 5 678

UH500SX Front View

1 2

4

6 7 8

3

5

Controls and Connectors

Rotary CHANNEL Selector

1.
MENU/ENTER - Menu and Select

2.

Button

DUAL - Dual Watch

3.

MON - Monitor Button

DCS/CTCSS - DCS and CTCSS Tone

4.

Button

MEM - Memory Scan Channels

5.

10

9

10

9

SCAN - Scan On/Off

6.
OS/GS - Open or Group Scan

Liquid Crystal Display (LCD)

7.
SQ - Rotary Squelch control

8.
VOL - Rotary Volume control

9.

ON/OFF - On/Off PUSH control

MIC - Front Microphone Jack

10.

5

uh400sx, uh500sx, uh400sx-RM, uhSec1:5 Sec1:5uh400sx, uh500sx, uh400sx-RM, uhSec1:5 Sec1:5 1/2/08 1:31:22 PM1/2/08 1:31:22 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Controls/Connectors

UH400SX Rear View UH500SX Rear View

13

11

12

14

Connectors

11. Power Input Connection (13.8VDC)

12. Ext. Speaker Jack

13. Rear MIC Jack

14. UHF Antenna Connection

12

13

11

14

6

uh400sx, uh500sx, uh400sx-RM, uhSec1:6 Sec1:6uh400sx, uh500sx, uh400sx-RM, uhSec1:6 Sec1:6 1/2/08 1:31:22 PM1/2/08 1:31:22 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Controls/Connectors

Remote LCD Speaker Microphone (Remote SPK/MIC)

(optional accessory, included with UH400SX-RM, UH500SX-RM)

15

17

18

19

20

21

22

Controls and Connectors

15 CALL - Call Tone Button
16 INST - Instant Channel Button
17 PTT - Push To Talk Button
18 MENU/ENTER - Menu and Select Button
19 MEM - Memory Scan Channel
20 SCAN - Scan Button
OS/GS - Open Scan/Group Scan
21 MICROPHONE
22 SPEAKER
23 Liquid Crystal Display (LCD)

24 VOL
(for Remote SPK/MIC)

25 VOL - Volume Down Button
(for Remote SPK/MIC)

- Volume Up Button

16

23

24

25

26

27

28

29

31

26 POWER - Power ON/OFF Button
27 SQL - Auto Squelch
MON - Monitor Button
28 DCS/CTCSS -- DCS & CTCSS Button
DUAL - Dual Watch Button

- Select Up and Down Buttons

29
30 RJ45 type plug
31 Front MIC Jack Cover

30

7

uh400sx, uh500sx, uh400sx-RM, uhSec1:7 Sec1:7uh400sx, uh500sx, uh400sx-RM, uhSec1:7 Sec1:7 1/2/08 1:31:22 PM1/2/08 1:31:22 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Controls/Connectors

Standard Microphone

16

15

17

Controls and Connectors

15 CALL - Call Tone Button
16 INST - Instant Channel Button
17 PTT - Push To Talk Button
21 MICROPHONE
30 RJ45 type plug
31 Front MIC Jack Cover

30

21

31

8

uh400sx, uh500sx, uh400sx-RM, uhSec1:8 Sec1:8uh400sx, uh500sx, uh400sx-RM, uhSec1:8 Sec1:8 1/2/08 1:31:22 PM1/2/08 1:31:22 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Indicators

UH500SX and UH400SX LCD (not to scale)

19

18

17

16

15

21

20

1

2

3

4

567

Remote MIC LCD

17

6

2

3

12

5

11

Indicators

1. TX - Transmit

2. DUAL - Dual Watch

3. SCAN - Scan mode

4. Channel Frequency

5. GS - Group Scan

6. INST - Instant Channel

7. PRI - Priority Channel

8. M - Channel in Memory

9. Channel Number

10. DCS/CTCSS Code Number

11. S/RF- Receive Signal or Transmit

12. Signal Power Level

20

22169

18

7

14

12

10

9

8

8

10

14

4

13. CTCSS -Continuous Tone

Coded Squelch System

14. BCL - Busy Channel Lockout

15. VOX - Voice Operated Microphone

16. DCS - Digital Coded Squelch

17. MON - Monitor

18. RSQ - Remote Mic Squelch

19. SQT - Tight Squelch Level

20. BUSY - Channel Active

21. DUP - Duplex Channel

22. CALL - Call Tone

13

11

9

uh400sx, uh500sx, uh400sx-RM, uhSec1:9 Sec1:9uh400sx, uh500sx, uh400sx-RM, uhSec1:9 Sec1:9 1/2/08 1:31:23 PM1/2/08 1:31:23 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

OWNER’S MANUAL

UHF RADIO TRANSCEIVER

UH40

0SX

UH400SX-RM

UH500SX

UH500SX-RM

Included with your UHF CB Radio

Standard Microphone

Mounting Bracket,

Mounting Screws, Washer Stars

And Screws

(UH400SX and UH400SX-RM

models only)

UHF CB Radio Owners Manual

Mounting Bracket,

Mounting Screws, Washer Stars

And Screws

(UH500SX and UH500SX-RM

models only)

Microphone Hanger & Screws

Washers and spare fuse

DIN-E Sleeve, DIN-E rubber

ring and keys for vehicle

installation (UH500SX and

UH500SX-RM

models only)

Remote LCD Speaker Microphone
(UH400SX-RM and UH500SX-RM

DC Power Cord with fuse

models only)

uh400sx, uh500sx, uh400sx-RM, uhSec1:10 Sec1:10uh400sx, uh500sx, uh400sx-RM, uhSec1:10 Sec1:10 1/2/08 1:31:24 PM1/2/08 1:31:24 PM

10

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Optional Accessories

Optional Accessories

DIN Mounting Kit (DMK8990)

for compact models

External Speaker (MS100)

• VOX Headset (VM091)

Remote LCD Speaker

Microphone (RM100)

Extension cable kit RM100

(EC100)

11

uh400sx, uh500sx, uh400sx-RM, uhSec1:11 Sec1:11uh400sx, uh500sx, uh400sx-RM, uhSec1:11 Sec1:11 1/2/08 1:31:25 PM1/2/08 1:31:25 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

DIN-E Installation (UH500SX, UH500SX-RM Only)

Mounting Using the DIN-E Sleeve

If you are unsure about how to install your UH500SX in your vehicle using the DIN-E sleeve,
consult your automobile manufacturer, dealer, or a qualifi ed installer. Before
installing, confi rm that your UH500SX fi ts in the desired mounting area and you have all the
necessary materials to complete the task. Your UH500SX requires a 53 x 183 x 135 mm
mounting area. Allow an additional 60 mm space behind the unit for connectors and wires.

1. Remove the bracket if previously attached.

2. Install the DIN-E sleeve into the opening in your dashboard, lip facing out.

3. Push out the top and bottom tabs to hold the sleeve fi rmly in place.

4. Remove the fl at rubber ring fi tted around the cabinet sides near the front of the UH500SX.
Fit the supplied DIN-E rubber ring in it’s place. When fi tted the rubber ring will act as a
seal against the DIN-E sleeve. At the left and right sides of the ring there will be a slot space.

The slots in the fi tted DIN-E Rubber Ring will enable proper removal of radio from the
DIN-E sleeve.

5. Before inserting the UH500SX in the sleeve, attach the cable from the
previously mounted antenna. Attach the DC Power leads. RED goes to a positive (+)
connection on your fuse block while BLACK connects to the vehicles chassis
ground (-). Be sure all the connections are routed away from any potentially
pinching or slicing sheet metal.

6. Slowly slide the UH500SX into the sleeve until it locks in place.

If you plan to use the Rear MIC Jack or connect an external speaker at a later time,
expect to remove the unit for ease of making those connections.

12

uh400sx, uh500sx, uh400sx-RM, uhSec1:12 Sec1:12uh400sx, uh500sx, uh400sx-RM, uhSec1:12 Sec1:12 1/2/08 1:31:25 PM1/2/08 1:31:25 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

DIN-E Installation (UH500SX, UH500SX-RM Only)

Removing the UH500SX from the DIN-E Sleeve

If you plan to use the Rear MIC Jack or connect an external speaker, at a later time, you should
plan to remove the UH500SX from the DIN-E sleeve. This is easily done using the provided
Removal Keys.

Fully insert both Removal Keys straight into the slot spaces provided by the DIN-E rubber ring
on the left and the right edges of the radio’s dress panel. You cannot remove the radio if only one
key is available.
Press in fully and the radio will unlock from the sleeve making withdrawal from the
sleeve possible. Store the keys in a safe place for future use.

13

uh400sx, uh500sx, uh400sx-RM, uhSec1:13 Sec1:13uh400sx, uh500sx, uh400sx-RM, uhSec1:13 Sec1:13 1/2/08 1:31:25 PM1/2/08 1:31:25 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Connecting the Microphone

UH400SX

UH500SX

FRONT MIC JACK

Push the MIC plug at the end of the microphone into the MIC jack until the connection locks into
place. Gently tug the MIC cord to test that the connection is locked. Use the Front MIC Jack
cover which is threaded onto the MIC cord to seal the MIC jack entry from dust.

Disconnecting the MIC from the Front MIC Jack

Pull away the threaded rubber collar and move it down along the cord. Using the fl at blade
of a screwdriver or similar object carefully press the lock tab at the bottom (UH500SX) or left
(UH400SX) side of the MIC plug and push it upwards (UH500SX) or to the right (UH400SX). At
the same time tug on the MIC cord to draw back the MIC plug.

REAR MIC JACK

Use the Rear MIC Jack if the main base is mounted where a front MIC connection is intrusive or
if you wish to use the Remote LCD Speaker MIC with an optional extension cable.

Peel the dust cover from the rear MIC jack. Push the MIC plug at the end of the microphone
into the MIC jack until the connection locks into place. An optional 2m extension cable kit is
available to enable mounting the main base in a hidden location.

The Front and Rear MIC JACKs can not be used at the same time.

14

uh400sx, uh500sx, uh400sx-RM, uhSec1:14 Sec1:14uh400sx, uh500sx, uh400sx-RM, uhSec1:14 Sec1:14 1/2/08 1:31:25 PM1/2/08 1:31:25 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Mounting the MIC Hanger

The Microphone Hanger comes in two parts. How and where you mount the MIC hanger will
determine which parts to use.

Conventional Mounting with Screws

Use the front part of the MIC Hanger only.
Locate a suitable mounting position and mark and drill two 3mm holes.
Fix the MIC Hanger into place with screws.

Conventional Mounting with Double Sided Tape (not supplied)

High quality Double-Sided tape can be found at good retail stores.
Secure the front and back pieces of the MIC Hanger using the supplied binding screws.
Locate a suitable mounting position.
Apply high quality Double-Sided tape onto the fl at area of the MIC Hanger back piece and then
press fi rmly to the mounting position.

15

uh400sx, uh500sx, uh400sx-RM, uhSec1:15 Sec1:15uh400sx, uh500sx, uh400sx-RM, uhSec1:15 Sec1:15 1/2/08 1:31:25 PM1/2/08 1:31:25 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Mounting the MIC Hanger

MIC Hanger mounted over MIC Cable

The curly cord of the Standard MIC and Remote SPK/MIC can extend up to 1.5m.

For practical mounting of the MIC Hanger using the threaded cord technique it is highly
recommended to use this technique with the optional Extension Cable.

Using the second part of the MIC Hanger as a template mark
and drill a single 13mm hole. The hole needs to be large
enough (13mm min) to allow for the MIC plug of the
microphone to fi t through.

Feed RJ45 MIC plug through the hole and connect to the
optional Extension Cable. Connect the other end of the
Extension Cable to a MIC Jack on the radio.

Mount the MIC Hanger using the Screw (single part) or
Double Sided Tape (two part) option described on the
previous page, making sure the MIC Hanger is centred over
the hole where the MIC cable is fed through. The single or two
part MIC assembly has a routing cavity to allow fi tting over the
MIC cable.

16

uh400sx, uh500sx, uh400sx-RM, uhSec1:16 Sec1:16uh400sx, uh500sx, uh400sx-RM, uhSec1:16 Sec1:16 1/2/08 1:31:26 PM1/2/08 1:31:26 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Turning on the Power

Press and hold the ON/OFF control at the
base or the
SPK/MIC.

Setting the Manual Squelch (base only)

Turn the outer ring of the SQ control at the base to adjust the Squelch.

[POWER] button on the Remote

You must select a channel which is not in use before setting the SQUELCH control.
(see p.19 for “Selecting a Channel”).

Think of the squelch
control as a gate. If you
turn Squelch fully
clockwise it raises the
‘Squelch gate’ so high that
no signals get through.

If you turn the Squelch
fully counterclockwise it
lowers the ‘Squelch Gate’
to the extent that all
signals get through ­weak, medium and strong
signals and noise.

To set the ‘Squelch Gate’
to the desired level, turn
the squelch knob
counterclockwise until you
hear noise. Then carefully
turn the Squelch knob
clockwise until the noise
fades. Now only strong
signals get through.

17

uh400sx, uh500sx, uh400sx-RM, uhSec1:17 Sec1:17uh400sx, uh500sx, uh400sx-RM, uhSec1:17 Sec1:17 1/2/08 1:31:26 PM1/2/08 1:31:26 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Setting the Auto Squelch

The Auto Squelch feature is available only when the Remote SPK/MIC is connected. It has an
Off setting and 3 preset squelch levels:

oFF - Auto Squelch OFF

1 - max sensitivity (min squelch)

2 - med sensitivity (med squelch)

3 - min sensitivity (max/tight squelch)
It requires no adjustment.

1. Press [SQL/MON] on the Remote SPK/MIC. The squelch setting fl ashes.

2. Rotate the channel knob at the base or press on the Remote SPK/MIC to change
the setting. RSQ icon displays when Auto Squelch is active. If tight squelch is
selected SQT icon will also fl ash.

3. Press [MENU/ENTER] to store the setting.

18

uh400sx, uh500sx, uh400sx-RM, uhSec1:18 Sec1:18uh400sx, uh500sx, uh400sx-RM, uhSec1:18 Sec1:18 1/2/08 1:31:26 PM1/2/08 1:31:26 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Monitor

Press and hold [DUAL/MON] at the base or

[SQL/MON] on the Remote SPK/MIC to

open the squelch and receive all weak signals.
Press and hold [DUAL/MON] at the base or
[SQL/MON] on the Remote SPK/MIC again
to cancel.

Selecting a Channel

Turn the Rotary Channel Selector at the base
or press on the Remote SPK/MIC to
select the desired channel.

For your reference a list of the available channels, corresponding frequencies
and guidelines for their use is printed on page 31. For Australia, Channels 05
and 35 are reserved for Emergency Calls.

19

uh400sx, uh500sx, uh400sx-RM, uhSec1:19 Sec1:19uh400sx, uh500sx, uh400sx-RM, uhSec1:19 Sec1:19 1/2/08 1:31:26 PM1/2/08 1:31:26 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Programming the Instant Priority Channel

Turn the Rotary Channel Selector at the base or press
on the Remote SPK/MIC to select the Priority Channel you
prefer.
Press and hold
seconds to store the new setting. INST icon appears.

[INST] button on the microphone for 3

Recalling the Instant Channel

Momentarily press the [INST] button on the microphone at
any time to return to the Instant Channel.

Transmitting

The UHF CB Radio uses the 40 UHF-CB Channels (Channels
22 and 23 are for telemetry and telecommand applications.
Transmit is inhibited on these channels).

Select the desired channel. Press the microphone’s PTT
button and speak normally into the microphone. Hold it
approx. 7cm from your mouth. Release the PTT button to
end the transmission and listen for a reply.

Call Function

Press the microphone Call Button. A three second ringing tone
will be transmitted.

You may select from 5 types of tones (see p.26).

CALL INST

PTT

Current regulations require calling tones to be restricted to one transmission per
minute. If a second transmission is attempted within one minute then an error tone will
sound.

DUAL Watch

Dual watch will continuously monitor the Instant channel no matter what other
channel is on (see Programming the Instant Priority Channel above)

[DUAL/MON] on the base or press and hold [DCS/CTCSS/DUAL] on the Remote SPK/

Press
MIC. DUAL icon appears and a short tone beep is heard.

To cancel DUAL Watch press

[DCS/CTCSS/DUAL]

[DUAL/MON] on the base or press and hold

on the Remote SPK/MIC. DUAL icon disappears.

20

uh400sx, uh500sx, uh400sx-RM, uhSec1:20 Sec1:20uh400sx, uh500sx, uh400sx-RM, uhSec1:20 Sec1:20 1/2/08 1:31:27 PM1/2/08 1:31:27 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Using Repeater Channels

UHF CB repeaters are used to retransmit or relay your signal. Repeaters will extend the range
of your radio and overcome the shielding effect caused by solid obstructions. In normal Simplex
operation, your radio transmits on one particular frequency and receives on that same frequency.

If there is a barrier that partially blocks your transmitted signal, the probability of another radio
receiving the signal is very slim. Hills, tall buildings, metallic structures,...etc tend to act as a
screen between radios.

Standard Operation without the aid of a Operation with the aid of a Repeater
Repeater Station. Station (Duplex).

The signal coming from your radio is received by the Repeater Station and the re-transmitted at
the same time on another channel. This operation is called “Duplexing”.
For example,
CH01 on Duplex Mode will Receive on CH01 but Transmit on CH31
CH02 on Duplex Mode will Receive on CH02 but Transmit on CH32 etc...

If you transmit on CH01 Duplex mode, you are actually transmitting on CH31 the
repeater station down-coverts your signal and retransmits on CH01.

21

uh400sx, uh500sx, uh400sx-RM, uhSec1:21 Sec1:21uh400sx, uh500sx, uh400sx-RM, uhSec1:21 Sec1:21 1/2/08 1:31:27 PM1/2/08 1:31:27 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Operating the UHF CB Radio in Duplex Mode

For this example we are adopting CH01 as the channel being used in your area for
repeater use.

1. Press
setting fl ashes.

2. Turn the Rotary Channel Selector
at the base or press on the
Remote SPK/MIC to change the
setting between ON or OFF on the
base or “0” or “r” on the
Remote SPK/MIC.

3. Press

4. Press and hold
from the menu mode. Only channels
01 - 08 are available for Duplex.

[MENU/ENTER]. The duplex

[MENU/ENTER] to store the setting.

[MENU/ENTER] to exit

Check with your local Retailer for information on available repeaters.

Scanning

The UHF CB Radio has a scanning feature
that allows you to search for active channels
automatically.

Furthermore, the UHF CB Radio is
designed to have two types of scanning;
Open Scanning (OS) and Group
Scanning (GS), to give you fl exibility and
allow you to use the radio more
effectively. Press [SCAN/OS/GS] and
Scanning starts.

The SCAN icon appears.
The scan direction can be changed
at any time by rotating the channel

selector left or right or pressing
on the Remote SPK/MIC.

22

uh400sx, uh500sx, uh400sx-RM, uhSec1:22 Sec1:22uh400sx, uh500sx, uh400sx-RM, uhSec1:22 Sec1:22 1/2/08 1:31:27 PM1/2/08 1:31:27 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Open Scan (OS) Mode

Allows continuous scanning of all selected channels.
If an active channel is found, scanning will stop on that
channel. If the received signal ceases, the unit will wait 3
seconds for the signal to return, otherwise scanning resumes.

After transmission in scan mode, the unit will wait 20 seconds for the signal to return, otherwise
scanning resumes.

To skip the active channel, turn the Rotary Channel Selector at the base or press
Remote SPK/MIC momentarily. To deactivate SCAN, press

If SCAN is deactivated while on an active channel, the UHF CB Radio will stay on
that active channel. If no channels are active, the UHF CB Radio will reinstate the
starting channel.

OS Mode is indicated by the absence of the GS icon.

[SCAN/OS/GS].

Group Scan (GS) Mode

Includes the accessory feature Priority Watch which allows you to monitor the Instant Priority
Channel while scanning (see p.20 for setting Instant Priority Channel and p.24 to turn on
Priority Watch).

on the

To use GS Mode Scanning, press and hold

[SCAN/OS/GS]. GS icon appears on the

display.

GS Scanning checks the Instant Priority
Channel for activity regularly when Priority
Watch is ON.
If the Priority Channel becomes active the
radio will stay on that channel for as long as
the signal is present. If the received signal
ceases, Priority Scanning continues after 3
seconds.

If scanning stops on a channel which is not a
Priority Channel, UHF CB Radio will continue
monitoring the Priority Channel for activity
while listening to the active one.

To deactivate SCAN, press the

[SCAN/OS/GS] button.

23

uh400sx, uh500sx, uh400sx-RM, uhSec1:23 Sec1:23uh400sx, uh500sx, uh400sx-RM, uhSec1:23 Sec1:23 1/2/08 1:31:27 PM1/2/08 1:31:27 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Priority Watch

To switch Priority Watch On/Off;

1. Press

2. Turn the Rotary Channel Selector at the base or press
change the setting between ON or OFF.

3. Press

4. Press and hold

[MENU/ENTER] two times. The Priority Watch setting fl ashes.

[MENU/ENTER] to store the setting.

[MENU/ENTER] to exit from the menu mode.

If SCAN is deactivated while it is tuned to an active channel, the UHF CB Radio
will stay on that active channel.
If none of the channels are active, the UHF CB Radio will reinstate the scan start
channel.

If OS/GS Scanning is initiated when there are no channels programmed in
OS/GS memory, an error tone will be heard and scanning will not start (see
Programming Scan Channels - below).

Add/Remove Channels from SCAN Memory

Select which Scanning Mode you wish to use

- OS or GS.
Select the channel you want to store.

Press to
and a short tone beep is heard.

To remove the channel from SCAN memory,
press
The MEM icon disappears.

[MEM] store. MEM icon appears

[MEM] once more.

on the Remote SPK/MIC to

24

uh400sx, uh500sx, uh400sx-RM, uhSec1:24 Sec1:24uh400sx, uh500sx, uh400sx-RM, uhSec1:24 Sec1:24 1/2/08 1:31:28 PM1/2/08 1:31:28 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

40 RX Channels

The radio has 40 receive only channels (CH41 to CH80) which can be programmed with
frequencies ranging from 450-512MHz (in 12.5kHz steps).

Manual Programming

Turn power off.
Press and hold

[SQL/MON] on the Remote SPK/MIC

or
while turning power on (pressing power
switch on the base or
Remote SPK/MIC).

The channel indicator fl ashes the lowest
available empty channel. You may use
the rotary channel selector at the base or

on the Remote SPK/MIC to select

another channel from CH41 - CH80.

[MEM]. The MHz digits of the

Press
frequency indicator fl ashes. Turn the rotary
channel selector at the base or press
on the Remote SPK/MIC to select the desired
MHz.

[DUAL/MON] at the base

[POWER] on the

[ /MENU/ENTER] and [SCAN/OS/GS/ ] at the base or [ /OS/GS/SCAN] and

Press

[DCS/CTCSS/DUAL/

digits of the frequency, turn the rotary channel selector at the base or press
Remote SPK/MIC to select the desired kHz.

When fi nished press
base or press on the Remote SPK/MIC to select next channel for programming or press
and hold [
A confi rmation tone sounds. The channel is also entered into OS scan memory.

MENU/ENTER] to store setting.

] on the Remote SPK/MIC to change from the MHz digits to the kHz

on the

[MEM]. The channel indictor fl ashes. Turn rotary channel selector at the

Deleting a programmed RX Channel frequency:

Follow the steps in Manual Programming to enter a frequency for a desired channel.
Select 000 for the MHz digits and then press
and hold [MENU/ENTER] again to exit programming mode.

[MEM]. Select another channel to edit or press

25

uh400sx, uh500sx, uh400sx-RM, uhSec1:25 Sec1:25uh400sx, uh500sx, uh400sx-RM, uhSec1:25 Sec1:25 1/2/08 1:31:28 PM1/2/08 1:31:28 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Selecting the Call tone

1. Press [MENU/ENTER] four times.
The call tone setting fl ashes.

2. Turn the Rotary Channel Selector at
the base or press
Remote SPK/MIC to change the
setting between 1, 2, 3, 4 and 5.

on the

3. Press

4. Press and hold
from the menu mode.

[MENU/ENTER] to store the setting.

[MENU/ENTER] to exit

If a button is not pressed within 10 seconds the UHF CB Radio will automatically
exit the Menu Mode.

Roger Beep

1. Press [MENU/ENTER] six times.
The roger beep setting fl ashes.

2. Turn the Rotary Channel Selector
at the base or press on the
Remote SPK/MIC to change the
setting between ON or OFF.

3. Press [MENU/ENTER] to store the
setting.

4. Press and hold
exit from the menu mode.

[MENU/ENTER] to

If a button is not pressed within 10 seconds the UHF CB Radio will automatically
exit the Menu Mode.

26

uh400sx, uh500sx, uh400sx-RM, uhSec1:26 Sec1:26uh400sx, uh500sx, uh400sx-RM, uhSec1:26 Sec1:26 1/2/08 1:31:28 PM1/2/08 1:31:28 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Busy Channel Lockout

If the channel is already in use,
you can prevent the UHF CB Radio
from transmitting . This is particularly
important when using CTCSS/DCS.

1. Press
The BCL setting fl ashes.

2. Turn the Rotary Channel Selector at
the base or press on the Remote
SPK/MIC to change the setting between
ON or OFF.

3. Press

4. Press and hold
from the menu mode.

[MENU/ENTER] fi ve times.

[MENU/ENTER] to store the setting.

[MENU/ENTER] to exit

If a button is not pressed within 10 seconds the UHF CB Radio will automatically
exit the Menu Mode.

VOX Operation (optional VOX headset required)

1. Press [MENU/ENTER] three times.
The VOX setting fl ashes.

2. Turn the Rotary Channel Selector at
the base or press on the
Remote SPK/MIC to change the
VOX sensitivity (oF (OFF), 1
(highest) - 9 (lowest)).

3. Press [MENU/ENTER] to store the setting.

4. Press and hold
from the menu mode.

5. Disconnect standard or Remote MIC and
connect the VOX headset.

[MENU/ENTER] to exit

• The VOX function works only with base in place of the standard MIC and Remote
SPK/MIC.

• If a button is not pressed within 10 seconds the UHF CB Radio will
automatically exit the Menu Mode.

27

uh400sx, uh500sx, uh400sx-RM, uhSec1:27 Sec1:27uh400sx, uh500sx, uh400sx-RM, uhSec1:27 Sec1:27 1/2/08 1:31:29 PM1/2/08 1:31:29 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

CTCSS (Continuous Tone
Coded Squelch System)

Turn the Rotary Channel Selector at
the base or press
SPK/MIC the desired channel to use CTCSS.

[DCS/CTCSS].

Press
CTCSS icon appears.

Turn the Rotary Channel Selector at
the base or press

SPK/MIC to select the desired CTCSS code
01 - 38.

[DCS/CTCSS] once to store the new

Press
setting.
To turn off CTCSS (or DCS) select the oF
code during setting.

DCS (Digitally Coded Squelch)

DCS is a digital extension of CTCSS. It provides 104 extra, digitally coded, squelch codes that
follow after the 38 CTCSS codes. CTCSS 1-38, followed by DCS 1-104.

Follow the steps for setting a CTCSS code. Turn the Rotary Channel Selector at
the base or press on the Remote SPK/MIC until the DCS codes appear.

[DCS/CTCSS] to set. The DCS icon and code will display.

Press

on the Remote

on the Remote

28

uh400sx, uh500sx, uh400sx-RM, uhSec1:28 Sec1:28uh400sx, uh500sx, uh400sx-RM, uhSec1:28 Sec1:28 1/2/08 1:31:29 PM1/2/08 1:31:29 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

Beep On/Off

1. Press [MENU/ENTER] seven times. The
Beep setting fl ashes.

2. Turn the Rotary Channel Selector at the
base or press
SPK/MIC to
change the setting between ON or OFF.

on the Remote

3. Press
setting.

4. Press and hold
from the menu mode.

[MENU/ENTER] to store the

[MENU/ENTER] to exit

Back Light

1. Press [MENU/ENTER] eight times. The
Backlight setting fl ashes.

2. Turn the Rotary Channel Selector at the
base or press on the Remote
SPK/MIC to change the setting between
OFF, LO and HI.

3. Press
setting.

4. Press and hold
from the menu mode.

[MENU/ENTER] to store the

[MENU/ENTER] to exit

29

uh400sx, uh500sx, uh400sx-RM, uhSec1:29 Sec1:29uh400sx, uh500sx, uh400sx-RM, uhSec1:29 Sec1:29 1/2/08 1:31:29 PM1/2/08 1:31:29 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Operation

LCD Contrast for Remote SPK/MIC

The LCD Contrast option becomes available
only when the Remote SPK/MIC is con­nected.

1. Press
LCD Contrast setting fl ashes.

2. Turn the Rotary Channel Selector at the
base or press on the Remote
SPK/MIC to change the setting between
01 (low contrast) to 10 (high contrast).

3. Press
setting.

4. Press and hold
from the menu mode.

[MENU/ENTER] nine times. The

[MENU/ENTER] to store the

[MENU/ENTER] to exit

The base LCD has a fi xed contrast which cannot be changed.

30

uh400sx, uh500sx, uh400sx-RM, uhSec1:30 Sec1:30uh400sx, uh500sx, uh400sx-RM, uhSec1:30 Sec1:30 1/2/08 1:31:30 PM1/2/08 1:31:30 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

UHF CB Channels & Frequencies

Channels 5 and 35 are used for emergency channels. CTCSS and DCS will
not operate on these channels.
Please follow these guidelines for channel use in Australia:

• Channels 05 and 35 are Emergency Channels.

• Channel 11 is a Calling Channel.

• Channels 22 and 23 are for telemetry and telecommand applications
and TX is inhibited on these channels.

General communication is accepted on all other channels with
these guidelines:

• Channel 40 - road channel (Australia).

• Channels 01-08 (and 31-38) are repeater channels.

Simplex Mode

CH No.

1 476.425 477.175 CH31 21 476.925

2 476.450 477.200 CH32 22 476.950 (RX only)

3 476.475 477.225 CH33 23 476.975 (RX only)

4 476.500 477.250 CH34 24 477.000

5 476.525 477.275 CH35 25 477.025

6 476.550 477.300 CH36 26 477.050

7 476.575 477.325 CH37 27 477.075

8 476.600 477.350 CH38 28 477.100

9 476.625 29 477.125

10 476.650 30 477.150

11 476.675 31 477.175

12 476.700 32 477.200

13 476.725 33 477.225

14 476.750 34 477.250

15 476.775 35 477.275

16 476.800 36 477.300

17 476.825 37 477.325

18 476.850 38 477.350

19 476.875 39 477.375

20 476.900 40 477.400

Transmit / Receive

Frequency (MHz)

Duplex Mode

Transmit

Frequency (MHz)

CH No.

Simplex Mode

Transmit/Receive

Frequency (Mhz)

31

uh400sx, uh500sx, uh400sx-RM, uhSec1:31 Sec1:31uh400sx, uh500sx, uh400sx-RM, uhSec1:31 Sec1:31 1/2/08 1:31:30 PM1/2/08 1:31:30 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

CTCSS & DCS Code List

32

uh400sx, uh500sx, uh400sx-RM, uhSec1:32 Sec1:32uh400sx, uh500sx, uh400sx-RM, uhSec1:32 Sec1:32 1/2/08 1:31:30 PM1/2/08 1:31:30 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Warranty

UNIDEN UH400SX, UH400SX-RM, UH500SX
and UH500SX-RM UHF CB TRANSCEIVER RADIO
Two Year Limited Warranty

IMPORTANT Evidence of the original purchase is required for warranty service.

Warrantor: Uniden Australia Pty Limited ABN 58 001 865 498

Uniden New Zealand Limited

Elements of Warranty: Uniden warrants to the original retail owner for the duration of this
warranty its UH400SX, UH400SX-RM, UH500SX and UH500SX-RM UHF CB TRANSCEIVER
RADIO (hereinafter referred to as the Product), to be free from defects in materials and crafts­manship with only the limitations or exclusions set out below.

Warranty Duration: This warranty to the original retail owner only is only valid in the original
country of purchase and shall be of no further effect 2 years after the date of original retail sale.
This warranty will be deemed invalid if the Product is: (A) Damaged or not maintained as
reasonable and necessary, (B) Modifi ed, altered or used as part of any conversion kits,
subassemblies, or any confi gurations not sold by Uniden, (C) Improperly installed, (D) Repaired
by someone other than an authorized Uniden Repair Agent for a defect or malfunction covered
by this warranty, (E) Used in conjunction with any equipment or parts or as a part of a system not
manufactured by Uniden. (F) Only available in the original country of sale.

Parts Covered: This warranty covers for two (2) years, the Product and included accessories.

Statement of Remedy: In the event that the Product does not conform to this warranty at

any time while this warranty is in effect, the warrantor, at its discretion, will repair the defect
or replace the Product and return it to you without charge for parts and service. This warranty
does not provide for reimbursement or payment of incidental or consequential damages. This
EXPRESS WARRANTY is in addition to and does not in any way affect your rights under the
TRADE PRACTICES ACT 1974 (Cth) (Australia) or the CONSUMER GUARANTEES ACT (New
Zealand).

Procedure for obtaining performance or warranty: in the event that the Product does not con­form to this warranty, the Product should be shipped or delivered, freight prepaid, with evidence
of original purchase (e.g. a copy of the sales docket) to the warrantor at:

UNIDEN AUSTRALIA PTY LTD UNIDEN NEW ZEALAND LTD
Service Division Service Division
345 Princes Highway, 150 Harris Road, East Tamaki,
Rockdale, NSW 2216 Auckland
Fax [phone] Fax [phone]
www.uniden.com.au www.uniden.co.nz

33

uh400sx, uh500sx, uh400sx-RM, uhSec1:33 Sec1:33uh400sx, uh500sx, uh400sx-RM, uhSec1:33 Sec1:33 1/2/08 1:31:30 PM1/2/08 1:31:30 PM

UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

© 2008 Uniden Australia Pty Limited/Uniden New Zealand Limited

Printed in China UTZZ01940ZZ(0)

34

uh400sx, uh500sx, uh400sx-RM, uhSec1:34 Sec1:34uh400sx, uh500sx, uh400sx-RM, uhSec1:34 Sec1:34 1/2/08 1:31:30 PM1/2/08 1:31:30 PM