Uniden Uh 100 Users Manual

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UHF CB TRANSCEIVER

OWNER'S MANUAL

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SUNDOWNER UH-100
SCANNING

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With Audio Scrambler and
Built-In SELCALL

Table of Contents
Controls I Indicators I Connectors
Controls
Indicators
Connectors
Introduction .""..."""'.".'...".".".""""".""'.".

3
3
4
5
6

Included with your UH-100
Operation

Settingthe Squelch

"..."""."",

7
8

8

""."""".

Selecting a Channel
Channel Auto Step...
Transmitting
Using Repeater Channels
Scanning
Choosing a Priority Channel
Drop-Out Delay
Programming Scan Channels
Channel Seeking Operation
Voice Scrambler

9
9
10
10
13
15
15
16
17
18

LCD Backlight Level Control
Selective Calling
This is UH-100 Calling
Making a Call
Acknowledgment Tone

19
20
21
21
22

"
,

""""""""""""""""'"

10 SelcalllD Memory."."""""""""""""""""""""""""

23

Transmitting ID from Memory

24

ReceivingCall

"

Replying using SELCALL
"
Group Calling
Tone Squelch (Receiver Quieting)
Activating the Tone Squelch (Receiver Quieting)
Receiving Calls when in Quiet Mode
Tone Squelch Scanning
SELCALL Advance Programming
Radio ID Programming
Tone Period Programming
Lead-In Delay Programming
"""""""'"
Lead-In Tone Programming
,
Alarm Mode Programming
Group Call Mode Programming
Caller ID Decoding """"""""""""""""""""""""""""""""""""""""'"

1

,

25
26
28
29
30
30
31
32
34
35
36
37
39
41
42

Service
Care and Maintenance

43
44

Notice """""""""""""""""""""""""""
Preventive Maintenance
Troubleshooting
Memory Backup
UHF CB Channel Information
SIMPLEX Operating Mode
DUPLEX Operating Mode
Specifications
General
Measurement Conditions

44
44
44
44
45
45
46
47
47
48

"""""""""""""""""""""""

"""""""""""""'"

TransmitterSection

""""""""""""""""""'"

Receiver Section
SELCALL
Warranty

48
48
49
50

2

Controls I Indicators I Connectors
Controls
,

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1. LIQUIDCRYSTALDISPLAY(LCD) PANEL- Indicators for TX,CAL, MEM,TSQ,
GS (OS), SCN, PRI, Channel Number, Frequency (SELCALL Code), Signal
Strength Level (S), Transmit Power Level (RF), DUP and Scrambler.
2. UP/DOWNCHANNELSELECTOR - These controls are used to select the desired
communication channel.
3. ON/OFF, VOLUME& SQUELCHCONTROLS
ON/OFF &Volume Control (Centre Knob)
Turns the UH-100 power ON or OFF and adjusts the volume.
Squelch Control (Outer Ring)
Eliminates background noise in the absence of an incoming signal.
4. PUSH-TO-TALK(PTT) SWITCH- Press to transmit and release to receive.
5. TONE CALLCONTROLBUTTON- Press to transmit SELCALLcodes, also used
to access TX SELCALLIDprogramming.
6. DUPLEX/ LCD BACKLlGHTControl
a. Duplex Operation
Press this button momentarily to choose semi-duplex operation for Channels 1
through 8.
b. LCD Backlight Control
Press and hold this button to change the LCD backlight level BRIGHT

- DIM- OFF.

7. OPENSCAN/GROUP SCAN CONTROL(OS/GS) - Switches operation between
OPENSCANand GROUPSCANMode.
3

8. SCANCONTROL(SCN)- Press to activate Normal OS/GS scanning or press and
hold to enable Seek Mode OS/GS Scanning.
9. MEMORY CONTROL (MEM) - Places channel numbers into the memory scan list
(OS or GS).
10. AUDIO SCRAMBLER I TONE SQUELCH CONTROL - Controls access to audio
scrambling feature and Tone Squelched operation (Quiet Mode).

Indicators
6

TS~
GS

Cl Cl Cl Cl Cl Cl

PRI

SRF...1

I SC

DDD.DDD,MHz

' I'
~

m
CA:JMEM
DUP f

I11~

~

~

~

I

11 1
~

11. Channel Indicator
- ,Indicates the channel number currently selected. On TX
SELCALL usage the Channel Indicator becomes a Memory location indicator.
12. Scan Indicator (SCN) - SCN icon appears when Normal Scan mode is activated.
When Seek Mode Scanning is selected the SCN icon blinks.
13. Priority Indicator (PRI) - Indicates that Priority channel is active when continuously
lit or Flashes when it is regularly being checked for activity while GS scanning.
14. Frequency I SELCALL ID Indicator - Shows the frequency of the current selected
channel. The Frequency Indicator changes to SELCALL ID display when using the
SELCALL feature.
15. RECEIVE SIGNAL I RF LEVEL Indicator (S I RF) - Indicates the relative signal
strength level when receiving (S) or the relative transmit power (RF) when
transmitting.
16. DUPLEX

selected.

Indicator

(DUP) - The DUP icon appears

when duplex operation

is

17. TRANSMIT Indicator (TX) - TX appears when the PTT button on the microphone
is pressed and the radio is transmitting. The RF icon also appears at this time.
18. CALL Indicator (CAL) - The CAL icon appears when the UH-100 radio is called
using SELCALL. It also appears when SELCALL codes are being transmitted.
19. SCRAMBLER

Indicator

(f)

- The f

icon appears

when the Voice scrambler

is

activated.
20. MEMORY Indicator (MEM) - MEM appears when the displayed channel is
programmed either in GS or OS Memory.
21. TONE SQUELCH Indicator (TSQ) - The TSQ icon will appear when the selected
channel is set to operate in Quiet Mode, or flashes when the radio is called using
SELCALL.
22. GROUP SCAN Indicator (GS) - The GS icon appears when Group Scan Mode is
activated. Open Scan is indicated by the absence of the GS icon.
4

Connectors
FrontPanel

23. MICROPHONE SOCKET
The microphone plug is inserted into this socket.

Back Panel

0
0

~

6

24. EXTERNAL SPEAKER JACK - Used for remote receiver monitoring. When the
external speaker is connected, the internal speaker is automatically disconnected.
The connecting wire must use a 3.5mm miniature plug only.
25. ANTENNA CONNECTOR - Connect the Antenna here using a PL259 type
connector.
26. DC POWER CORD - DC power is connected to the transceiver through this jack. A
power cord is supplied with the transceiver.

5

Introduction
The Uniden UH-1 00 UHF two way radio is designed to provide you with years of trouble
free service. Its rugged components and materials are capable of withstanding harsh
environments. The unit may be mounted in several convenient locations using the
universal mounting bracket.
You can be confident in your choice of radio equipment because the UH-100 offers
built-in SELCALL, Wide Liquid Crystal Display, Back-lit Control buttons, complete
coverage of the UHF CB Frequency Band, and much more.
We are certain that you will enjoy your UH-1 00. Please read this operating guide carefully
to ensure you gain the optimum performance of the unit.

General Features
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

Full Coverage of the UHF CB Band
5 Watt Max. Transmitter
Built - In SELCALL Feature
External Speaker Jack
Full Frequency Display
Wide Liquid Crystal Display
Back-lit Control Buttons
Multi LCD Backlight Level
Duplex Capability
Built-In Voice Scrambler
Open Scanning
Group Scanning / Priority Channel Monitoring
Channel Seek Mode
Push Button Channel Control
Front Fire Speaker

SELCALL Features
.
.
.
.
.
.
.
.
.
.

10 TX SELCALL ID Memory Locations
User Programmable
Caller Identification
Full ID Display
Last ID Re-SEND
Return Call
Acknowledge Tone
Tone Squelch Mode (Receiver Quieting)
Tone Squelched Scanning
Compatible with most SELCALL equipped radios in the market.

Specifications, features, and availability of optional Accessories are all subject to change
without prior notice.

6

Included with your UH-100

UH-100 Owner's Manual

Microphone Hanger, Screws
and Washers

@@
@@ ~~

~~

~

Mounting Bracket, Knobs,
Rubber Washer, Washer Stars
and Screws

=f
DC Power Cord with Fuse

Warranty Registration Sheet
7

Operation
Setting the Squelch
1. To turn the unit ON, rotate VOLUME clockwise.
Adjust volume to a comfortable level.

Note: You must select a channel which is not in use before setting the SQUELCH
control on your radio.
2. 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.

~~i
~IY

Strong Signals
Medium Signals

~

Weak Signals

Noise

3. If you turn the SQUELCH fully counterclockwise it lowers the "Squelch Gate" so
that everything gets through - noise, weak signals, and strong signals.

..
..
..
..
..
..
..
..
..

Strong Signals
Medium Signals

~
Weak Signals

Noise

.

8

4. To set the "Squelch Gate" to the desired level, turn SQUELCH counterclockwise
until you hear noise. Then turn the SQUELCH clockwise just until the noise stops.
Now only strong signals get through.

..

..

Strong Signals

.

Medium Signals

~
Weak Signals

Noise

~I

Selecting a Channel
1.

When you turn on the UH-1 00, the last channel used will appear on the LCD display.

egoCH01

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~

()()~~~,~()

2a. Press'"

Lt t

OO~

[~

()()()()()()

,-, '

'f75.'fi'SlofHz

1~15Q)

1

~
~

~

to select a higher channel.

- or -

I8IkB1

~

UH-,00

()()~~~~~()

()~~~~~~~
()~~~,~" II
()~~~~~~~
()()~""()
()()()()()()

[

,-,-,
-

s
'f75.'fSOIofHz

LtL

(~ @ W ~

-

TSO

0MI8

2b. Press T to select a lower channel.
I8IkB1

~UH-'oo

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()~~~~~~~

()~~~,~"

s
I

I

I

'f71'fOOIofHz

()~~~~~~~

()()~~~~'()
[~)
() () () () () ()
l

TSO

~ ~ ~

Channel Auto Step
To quickly
change channels, press and hold ~ or ... . This changes channels at 10
channels per second.

Note: A short tone sounds when you press either ~ or... and the channel changes.
Another tone sounds when Channel Auto step begins.
9

Transmitting
The UH-100 transmits on 40 UHF CB channels. For your reference, a listing of all the
available channels is printed on the back cover.
1.

Select the desired channel.
ego CH01
UEU

s
I{

76.1{t?5MHz

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LI I

2. To transmit, press the PTT switch to activate the transmitter.

..

.'116.'1('5....

m

MEAl

1

RF
I{ 76.1{t?5MHz

,-,

LI

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I


TSQ (!D  TI

~~~

I(~I

When completed, press MEM to store.
You repeat this process to store Transmit
locations of your UH-100.

Selcall

ID's into the remaining

Transmitting ID from Memory
The procedure is very much the same as explained in making a call.
Press the TONE CALL button.
MEM

s
1t?1'1S

-

,L

..

~I~
;J

~~~(~)
11IQ

The LCD Frequency display changes to
show the last ID transmitted.

Using the channel.

[]

or . , select the desired memory location.

OR

Ot?'I]5

..

-

ft?J"IS

0 lIlt?
..
(~)~~I~)
11IQ

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24

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.

memory

Once located, simply press and hold the TONECALLbutton to send.

..

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-" ,

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40,"136
~ OO~~

Press and hold

I

9>

The IDthat is sent becomes the Last ID Transmitted. Every time the TONE CALL
button is pressed this ID will be shown. To send the ID again, simply press and hold the
TONE CALL button.

Receiving a Call
When a Call is received from another UH-100 or Compatible

radio,

12345
Z
""NN
NIl""
"""'1
I"NIN
~=Il

~

=~

00000

"_1
NI"NI
I====W0 0000

ID: 23456

ID: 12345

the UH-100 will automatically

~

transmit an acknowledgment

Beep, Beep, Beep

z..
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~=I

~
0

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,.,-/

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1'1"11"11
""111'1

tone.

0000

~

\----

-~
,..""00000
=
--

An audible alarm is emitted and the Call icon and the Caller's ID will appear on the
display.

'F;
~~~~~~~~
tJ""",
Beep

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,LI ~ 0
Il

11

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tJ~~"~~,

J~~~r::

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g

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...

~ e'

Answer the call in a normal manner.

This is Falcon,
go ahead ........

Note:

If the radio is left unattended,

the Caller ID and the CAL icon will stay on the

display. The Call alarm can be con figured to continuously beep when
unanswered. (Please refer to Selcall Advance Programming on page 32)

Replying

using SELCALL

When a call is received from another UH-100, or compatible radio, the UH-100
automatically decodes and displays the caller ID.

Beep

~ ~;/

"- ""'",,-If
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26
~
~

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If the radio was left unattended you can call back later by simply pressing and holding
the TONE CALL button.

'-' ,-,

fEl CIIL

RF.....
t?]'fS6

ILl

~

~~~~
TBQ

This action automatically
programming.

loads and transmits the ID on display, and saves you time on

If the received call does not have the Caller ID information, a dash (-) line will be shown
in lieu of the Caller ID.

~-l~ep
-

Beep--

~(;'~~~~~~
~ ~~~~~~~~
~~~~~~~~
11
,

,

11

~~~~~~~~

GAL
s_-H-

~"- ,-,
, LI

}~~~~~

GD

e

Returning a call in this case will cause the radio to emit an error tone and a "no id"
message will be displayed.

S
.l'Io,d.

+

'-' ,-,
ILl

oil


TSO ~~(~)

27

Group Calling
Most Selcall users will have several members in their group. It is possible that everyone
in the group needs to be alerted at the same time, for example when an emergency
situation occurs. Calling them one by one can be inconvenient and time consuming. It
is possible to create a special code that will be recognized by every radio in the group
when transmitted. Your UH-100 incorporates this feature known as Group Calling.
The UH-100 has the capability of being owner programmed to Group Call within groups
of 2 to 10,11 to 100,101 to 1000 or 1001 to 10000 radios.
While you were setting SelcalllO numbers to be sent, you may have noticed the letter
"A" appeared on the LCO from time to time. This letter has a special application. When
added in your code to be transmitted, it tells the UH-100 that the call is a Group Call in
nature. Note that you have to follow a special format to make a Group Call.
To make a Group Call work all members of the group must have Selcall ID's in a
numerical sequence. e.g. group of 10 users may have the following SelcalllO's:

23450
23451
23452
23453
23454

23455
23456
23457
23458
23459
f13

To be able to Group Call all the other 9 radios in your group of
10 you would need to transmit the code 2345A.

GAL

SRF

1

~:JI{SR

'-' ,-,
IL'

ALL radios with 2345 as the first 4 numbers of their ID Code will be alerted.
Using the first four digits followed by "A" is suitable for calling groups of 2 to 10 radios
as shown above.
The first 3 digits followed by "AA" is for 11 to 100 radios. (eg 234AA)
The first 2 digits followed by "AAA" is for 101 to 1000 radios. (eg 23AAA)
The first digit followed by "A" is for 101 to 10000 radios. (eg 2AAAA)
You can still call any of the individual members of your group, without calling all the
others, by programming the individual's SelcalllO into a separate memory location.
e.g. You have your group call code (2345A) in memory location 5. You want to be able
to call unit 23453 outside the group so you store 23453 in memory location 3.
The UH-100 differentiates
beeps.

group calls and individual calls by emitting different alarm

For Group Calls the alarm beepwill
will be a high tone.

be a Iow tone and for individual tone calls the beep

Note: When

you transmit a Group Call you will not receive acknowledgment
from the other radios as you nonnally do with individual tone calls.

28

tones

Tone squelch (Receiver Quieting)
Receiver Quieting, or Tone Squelch (TSQ), is actually SELCALL in action. The UH100 receiver is muted and you cannot hear any signals until the mute is disengaged by
reception of your Selcall code.
Refer to page 8 for explanation

of how the squelch system works.

The Squelch discussed previously "screens" the received signal level, however in tone
squelch mode, the squelch monitors the signal for your ID.

1. The Tone Squelch Control acts as an electronic lock. Activating the Tone squelch
closes this lock.
Regardless of how strong the received signal is, if it does not have the required
"electronic key" the gate will remain closed.

NoKey

~@

Received Signal

2.

If the received signal contains
electronic lock will open.

the required

key (which is your Radio ID), this

The muting circuit is then deactivated on your radio and advises you that a call has
been received.

Electronic Key

~6!J

..
..
Received

..
..
..

Signal

.

..
....

Activating the Tone Squelch (Receiver Quieting)
1. Select the channel you want to put into quiet mode using the channel selector
switches.

"-/II ~

"EM
5

'176.6

ml,-

ILl

sa"""

~
((~)~~~~
TSQ

~

~

)

""'r'

-:;;

"'tI

"""'IC

2. Press the SCRAMBLElTSQ button for about 1.5 seconds. One beep is heard and
the TSQ indicator appears on the display. This channel is now programmed to
operate in Quiet Mode.

5

"EM TSO

'I 76.6S01AHz
~

I ,-,

f8

I LI

~

.

~

~

~~~~

When a quiet mode channel is selected the TSQ indicator appears on the display. The
microphone PTT is disabled on that channel until a signal with your SelcalllD is received.
All other channels can be used as normal.
3.

To deactivate any channel in quiet mode first select the relevant channel.
Press the SCRAMBLElTSQ button for about 1.5 seconds. Two beeps are heard
and the TSQ indicator disappears from the display.

Receiving Calls when in Quiet Mode
The UH-100 will respond in the same way in quiet mode as when it is called while in
normal mode.
When the call is left unanswered, however, the radio automatically resumes the quiet
condition. (The auto - quiet mode function can be switched ON or OFF, please refer to
the Selcall Advance Programming section on page 32)

30

Tone Squelch Scanning
You may wish to limit your scanning activities so the UH-100 will only scan the channels
you have pre-arranged to use with your SELCALL family. These are the channels you
have programmed as TSQ or quiet mode.
Tone Squelch Scanning applies this function.
To activate this feature firstly initiate SCAN.
MEM

BCN

"=1,-,
,-" ."".
,

--

~

~

e
CH

@

~

~~_.

Then press SCRAMBLEITSQ.
TSQ
BCN

~

eCH

,-, ,-,

~,-'

,- ,"""

@
~

~~~.
When a call is received the unit will pause scanning and an audible alarm is emitted.
If left unanswered the radio will resume Tone Squelch scanning. The UH-100 can be
programmed to deactivate scan automatically when a selective call is received. Please
refer to the Selcall Advance Programming Section.
To deactivate Tone Squelch Scanning,

simply press SCN key.

31

SELCALL Advance Programming
The Sundowner UH-1 00 radio is fully user programmable. It gives you the freedom to
select your own radio ID, configure the radio's response when a call is received, change
SELCALL parameters for compatibility with other UHF Radio brands, plus much more.
Please read the following procedure carefully to understand the full SELCALL capability
of this radio. This will enable you to utilize the SELCALL to maximum effect.
Since the following items are NOT frequently changed, and are characterized as highly
significant, a special accessing procedure has been developed to prevent accidental
changes or programming.
To access the SELCALL

Parameter Programming

mode.

First, switch OFF the radio.
Press and hold the OS/GS key and switch the radio ON simultaneously.

(
~

-~
.

(~

~

«...~

The radio will switch ON in the programming

Mode.

~@

150'- I

L Cl

~

Cc""""'» (~)
TSC

----

ccocc

(cID)

(@ID)~

.

a

'"T'"

32

~F

The illustration

below outlines the user programmable

Once inside the programming

parameter menu.

mode, use the .& or T to scroll on the menu.

Press MEM to select. Change the setting using the .& or T key. Press MEM again to
store and exit.

Programming Start

Radio ID
Programming

Tone Period
Programming

Caller ID
Decoding

Group Call Mode
Programming

Lead-In Delay
Programming

Alarm Mode
Programming

Lead-In Tone
Programming

Press and Hold the OS/GS Key again OR switch the radio OFF then ON to exit this
mode.

33

Radio ID Programming
To program your own Radio ID, perform the following procedure.
From the main menu, using the... or T key, go to the Radio ID Programming Menu.
(If you have never changed this parameter, the Radio ID 00000 will be displayed)

.

C-JI
1IQ

Press the MEM key to start programing. The last digit of the Radio ID will flash. This
indicates that you can now enter your new Radio ID.
The flashing digit is the one you can change. To select another digit, use the ~ or ~ to
move position.

IS

TSQ
,- -I
DDDQlK
4

CH

L LI

@
~

~~S>
To change the flashing digit value, use the... or T key.
When completed, press the MEM and the new Radio ID will be stored into the memory.

34

Tone Period Programming
Tone Period is the duration of one tone in a SElCALL ID sequence. The setting of this
parameter depends on the application. On long distance communications, where the
signal strength of the transmitted information is greatly reduced and affected by noise,
it is advisable to use a longer tone period. A long tone period gives the decoder more
time and information to check and evaluate the code.
Important Note: Ensure all radios in your group use the same tone period setting,
otherwise, you will not be able to selectively call one another.
To change the Tone Period setting.
From the main menu, using the... or T key, go to the Tone Period Programming
(If you have never changed the Tone Period, the default setting is 40 mSec)

TSO

..

DIID

(C ol
T8Q

,-, '

Menu.

~

,- Cl IIi~
+~Pn.c

~~~

Press the MEM key to start programming. The Tone Period on display will flash. This
indicates that you can now change the setting.

TSO
,-,

.-.'-,

.'".Mo"

..

e

I

CH

,- Cl ;;

.

~~~~
To change, use the... or T key.
You can select either, 40,70, 100
or 20 mSec.

"

When completed, press the MEM to store
the new Tone Period setting into the
memory

I

.

l ~q~q,
~~'~"

7SQ
':' -'

,

7SQ
,-, ,

,- ,-,
-

. .
'"0£'0'.'. -.,

L
35

1

'
7SQ

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.

~o7d"
. - ."

7SQ

, ~!M:

LI

,-,

,- LI-'I

..I

,-, ,
,- C,

Lead -In Delay Programming
Lead-in Delay is a SELCALL transmission parameter that "wakes-up" and helps the
receiver of the other radio to lock onto the incoming signal. Each time a SELCALL ID
is transmitted, the Lead-in Delay attaches itself to the beginning of the code sequence
and causes the transmitter to be on for a longer period prior to the code transmission.
This makes for a stronger communication link between the transmitter and the other
receiver.
The major advantage of having the Lead-in Delay longer is when selectively calling
another radio via a repeater station. A long Lead-in Delay helps to stabilize both the
communication link from your radio to the repeater station and from the repeater
station to the other radio.
To change the Lead - In Delay setting.
From the main menu, using the.. or ~ key, go to the Lead - in Delay Programming
Menu. (If you have never changed the Lead - In delay duration, the default setting is
500 mSec)

Press the MEM key to start programming. The Lead In Delay on display will flash. This
indicates that you can now change the setting.

~Md"
-.. ."

rsa, - I
L LI

~

~

~~e

36

sCH
a

To change, use the
or 4000 mSec.

or T key. You can select either 500,1000,2000,3000

When completed, press the MEM key. The new Lead - In Delay stops flashing and is
stored in the radio memory.
To return to normal operation, press and hold the OS/GS key for about 1.5 seconds,
or, press either the or T key to go to the next programmable parameter.

rl
rsa,

~i ~

.

~PIJ~

rsa

" Dolt
I';J- -...

Lead

'

TSO,

"'~iJ""
.~~oo...

L Cl

,

~. 4.1'
I>PlJq...

L Cl

, '

L Cl

I'

1-

lY.op~

rsa, -'
,- LI

...

TSO,-'
,- LI

-In Tone Programming

The Lead-In Tone when programmed, rides on the "Lead in Delay". When transmitting
a SelcalllD a continuous tone will be heard for the duration of the Lead In Delay.
The main function of the Lead - In Tone is to increase the probability of contact between
radios when Tone Squelch Scanning.
Unlike normal scanning, TSQ Scanning monitors the detected carrier for the presence
of Lead - In tone. Without it, TSQ scanning resumes.
If a Lead - In Tone is present the UH-100 will lock onto that signal and wait for the
SELCALL ID.
You can program the UH-100 to lock onto a particular Lead
enables the radio to immediately
your group.

- In Tone. This feature

recognize whether the signal present is intended for

i.e. If you are using Tone 1, your radio during TSQ scanning will lock only onto signal
with Tone 1 as its Lead - In tone.
Note: Should you wish your radio to lock onto any transmission
tone type present select "Tone - - ".

37

regardless of Lead-In

To change the lead-In Tone setting.
From the main menu, using the A or ... key, go to the lead-In Tone Programming
Menu. (If you have never changed the lead-In delay duration the default setting is
Tone 1)

ronE-I

-.

IC--»)
I~)I (@
TSQ

~~)

Press the MEMkey to start programming.
The lead In Tone on display willflash. This indicates that you can now change the
setting.

rsa, ,ront!~

CH

L I

~

a
e

~'

~~~..
To change, use the A or... key. You can select any Tones 1 to 9, A to For "- _".
When completed, press the MEMkey. The new lead-In Tone stops flashing and will
be stored in the radio memory.
To return to normal operation, press and hold the OS/GS key for about 1.5 seconds,
or press either the A or ... key to go to the next programmable parameter.

rsa, ,rlrD"E(:
:m
ronE .:l!:

..

L

L I

I,

rsa,

ronE

I

L

"'i!

..

:IT]
r onE :<'

.

L

..
rsa,

"o'q'
I
ronER

-

,-

I

rsa,
"q'

I

,-

I

ronE_3

..

.

L

,I

..

rsa,,ronE"'IJ

L I

38

------

Alarm Mode Programming
The UH-100 has two types of alarm set-up.

Set-up 1: Auto-Resume (Default setting)
When a Call is received in,
i)

Normal Mode
The alarm will sound only for 10 seconds

ii)

Tone Squelch Mode
The quieting circuit will open for 20 seconds. If left unanswered Tone Squelch
condition resumes. The alarm will sound for 10 seconds only.

iii) Normal Mode / Tone Squelch Scanning
The alarm will sound only for 10 seconds.
If left unanswered, scanning RESUMES after 20 seconds. The CAL icon will be
continuously lit on the display indicating that a call has been received. To look for
the called channel, cancel SCAN and use the A or 'Y key. The called channel will
display a CAL when found.

Set-up 2: Continuous Alarm
When a call is received
i) Normal Mode

in,

The radio emits a successive beeping alarm for 20 seconds then two successive
beeps every four seconds continuously unless answered.
ii)

Tone Squelch

Mode

The Tone Squelch condition is cancelled.
The radio emits a successive beeping alarm for 20 seconds then two successive
beeps every four seconds continuously unless answered.
iii) Normal Mode / Tone Squelch

Scanning

Scanning is cancelled.
The radio emits a successive beeping alarm for 20 seconds then two successive
beeps every four seconds continuously unless answered.

Note: Should you wish your radio to cancel scanning when a SELCALL is received,
select the continuous alarm mode.

39

To change the Alarm Mode setting.
From the main menu, using the. or ... key, go to the Alarm Mode Programming Menu.
(If you have never changed the Alarm setting, the default setting is Auto)
Press the MEM key to start programming. The Alarm setting on display will flash. This
indicates that you can now change the setting.

~

TSO
,-"

I-' L II -i~

Ruro
~
((-.Q)

TSQ

To change, use the.

~

~

@.) (r~1 ~
~

~
I

~

""'MIC

or... key.

When completed, press the MEM key. The new Alarm setting stops flashing and will be
stored in the radio memory.
To return to normal operation, press and hold the OS/GS key for about 1.5 seconds,
or press either the.

or ... key to go to the next programmable parameter.

.i.
'nu,':
..

TSQ
,-, ,
,-,t.

..;
I.oi-n.41
".
...

TSQ
,-, ,
,-,t.

40

Group Call Mode Programming
There are two ways the Group Call Code is transmiitted.
The Uniden UH-100 can be programmed

to accept either format.

Group 1 setting recognizes a group call transmitted with equal tone period.
Le. Calling 100 radios, with a tone period setting of 40 mSec.

Group 2 setting recognizes a group call transmitted with the first Group Call Tone period
extended by 3 times the original tone period setting (this is also the default setting).

~

A~

40mSec
---+I I+I
-.j 120mSec
I+-

To change the Group Call setting.

From the main menu, using the... or ~ key, go
to the Group Call Mode Programming Menu. (If
you have never changed the Group Call setting
before, its default is Group 2)

GroUP-

TSQ
,-, -'
LI C

~@~..P
TSQ

Press the MEM key to start programming. The
Alarm setting on display will flash. This indicates
that you can now change the setting.

-

TSQ
",-, -,'

GroUP- LI L
4

I~I_~~
To change, use the... or ~ key.
When completed, press the MEM key. The new
Group Call setting stops flashing and will be
stored in the radio memory.

GroUP-

To return to normal operation, press and hold
the OS/GS key for about 1.5 seconds,
or press either the... or ~ key to go to the next
programmable parameter.

GroUP.

41

llel~~@
~

I""MIC

Caller ID Decoding
The Sundowner UH-1 00 radio uses a total of 10 digits when making a Selective Call.
The first five digit is the ID of the radio to be called and the last five digit is its own ID.
Some radios in the market use only nine digit. If any member of your group is not using
Uniden radio, a quick check of its operating guide will advise you the signalling format
it is using.
To change the Caller ID setting.

From the main menu, using the... or ... key,
go to the Caller ID Decoding Menu. (If you
have never changed the Caller ID decoding
set-up, the default is digit 10)

TSQ

d 1[;If~
~

TSQ

Press the MEM key to start programming.The
digit Indicator on display will flash. This
indicates that you can now change the
setting.

(~)

c@

((~))

B

TSQ ,,-,
d 1[; If.

CH

ILl

@

~

~

(~J) .~(~).
To change, use the... or... key.
When completed, press the MEM key. The
new Caller ID setting stops flashing and will
be stored in the radio memory.
To return to normal operation, press and hold
the OS/GS key for about 1.5 seconds,
or press either the... or ... key to go to the
other programmable parameter.

42

TSQ~'

d IG If

d IG If-

-

,,-,,4

. , L'

Service
Should you find it desirable or necessary to service your UH-100, we suggest you
contact the Uniden Dealer where your purchase was made. Your dealer will be able to
assist you with complete service information.
If you require service that is within the terms of your warranty you should present a
copy of your receipt to your dealer to authenticate your claim.
If you find it inconvenient to obtain service assistance from a dealer, please pack your
radio in a suitable container that will provide adequate protection. Enclose a note
describing the problem and a copy of your receipt, and send the radio transportation
prepaid to:
Uniden Australia pty Limited
Customer Service Division
345 Princes Highway
Rockdale NSW 2216
Ph. (02) 9599-3100
Fax (02) 9599-3278

43

Care and Maintenance
Notice
If the UH-100 has been subjected to extreme high temperature (above 60°C) for a
prolonged period of time, blackening of the Liquid Crystal Display (LCD) may occur.
This is not a fault. Normal LCD operation resumes when the temperature stabilizes
back to standard operating conditions (0 to 55°C).

Preventive Maintenance
The following system checks should be made every six to twelve months:
1. Check the Standing Wave Ratio (SWR).
2. Inspect the tightness of all electrical connections.
3. Inspect the antenna coaxial cable for wear or breaks on the shielding.
4. Inspect the tightness of all screws and other mounting hardware.

Troubleshooting
Should the unit malfunction or perform poorly, follow the procedures indicated below:
1. If the transceiver is completely inoperative...
* Check the power cord and fuse.
2. If there is trouble with receiving...
* Check the VOLUME control setting.
* Be sure the SQUELCH is adjusted properly. Possibly the radio is over-squelched.
* Check that the radio is in an operational mode.
3. 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.

Memory Backup
A built-in capacitor protects the channels stored in the SUNDOWNER
for up to 2 weeks after the DC power cable is disconnected.

44

UH-100 memory

UHFCB Channel Information
This radio has been designed to provide a high level of performance in the Citizens
Band Radio Service, which is comprised of the following frequency assignments:

SIMPLEX Operating Mode
Channel
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

Channel Frequency in MHz
476.425
476.450
476.475
476.500
476.525
476.550
476.575
476.600
476.625
476.650
476.675
476.700
476.725
476.750
476.775
476.800
476.825
476.850
476.875
476.900
476.925
476.950
476.975
477.000
477.025
477.050
477.075
477.100
477.125
477.150
477.175
477.200
477.225
477.250
477.275
477.300
477.325
477.350
477.375
477.400

45

DUPLEX Operating Mode
Channel
Assignment
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8

Receive
Frequency (MHz)
476.425
476.450
476.475
476.500
476.525
476.550
476.575
476.600

46

Transmit
Frequency (MHz)
477.175
477.200
477.225
477.250
477.275
477.300
477.325
477.350

(CH31)
(CH32)
(CH33)
(CH34)
(CH35)
(CH36)
(CH37)
(CH38)

Specifications
General
Channels
Frequency Range
Crystal Oscillator
Microphone
Speaker
Antenna Connector
Jacks & Connectors

:40
: 476.425MHz to 477.40MHz
:4
: 600 ohm, Dynamic Type
: 8 ohm, 3.5W
: M-Type
: Mic 4P Metal
EXT SP 3.5<1>

Controls

Indicators

Cabinet Size

Weight
Operating Temperature
Power Requirements
SMA Approval
Accessories

DC Power 2P Type
: PRESS-TO-TALK Button (Microphone)
TON E CALL Button (Microphone)
SCAN/SEEK Button
OS/GS Button
SCRAMBLE Button
BACK LIGHT CONTROL Button
OFFNOLUME Control
SQUELCH Control
MEMORY Button
DUPLEX Button
TONE SQUELCH Button
CHANNEL UP/DOWN Button
: DUPLEX Indicator
TX Indicator
CALL indicator
TSQ Indicator
GROUP SCAN Indicator
MEMORY Indicator
CHANNEL Indicator
PRI Indicator
S/RF Level Indicator
SCAN Indicator
TX/RX FREQUENCY, 5 digits SELCALL ID Indicator
SCRAMBLE Indicator
:W: 172 mm
H : 52 mm
D : 145 mm
: 1.0 kg
: 0° to +55°C
: 13.8 VDC Nominal
: Type accepted under SMAS250
: DC power cable with built-in-fuse, microphone, microphone
hanger, mounting bracket screw (2), washer (2) for
microphone hanger, microphone hanger screw (2),
washer star (2) for mounting bracket, rubber washer (2)
for mounting bracket, knob (2) for mounting bracket
47

Measurement Conditions
: 13.8V (DC)
: 50 ohm
:25°C
1 kHz (RXlTX)
1000 /lV

::>owerSource
I\ntenna Impedance
Test Temperature
Modulation Frequency:
Mean Signal Input Level:
Reference Audio Output
Power
Reference Modulation
Deviation
Audio Output Load

: 500mW
: :i:3 kHz deviation
: 8 ohms

resistive

Transmitter Section
Frequency Tolerance at 25°C
(5 minutes after
turning on)
: :i:0.5 kHz
Carrier Power
: 5W (max)
Spurious Emission
:-40 dBm
Current Drain
: 1500mA
Modulation Frequency Response (1 kHz, 0 dB reference, at 1 kHz deviation)
Lower at 500 Hz
: -6 dB
Upper at 2.0 kHz
: +5 dB
Microphone Sensitivity
: 1.5mV
for 3 kHz Deviation
Maximum Deviation
: :i:4.5 kHz
at 1 kHz
at 6 kHz
: :i:1.5 kHz (max)

Receiver Section
Sensitivity at 12dB SINAD
Overall Audio Fidelity
(1 kHz, 0 dB reference)
Lower at 500 Hz
Upper at 2 kHz
Adjacent Channel
Selectivity (:t:25kHz)
Maximum Audio Output
Power
Audio Output Power at
10% THD
Hum & Noise Ratio at
Input 1mV
Squelch Sensitivity at
Threshold
Squelch Sensitivity at
Tight
Image Rejection Ratio
IF Rejection Ratio
Oscillator Dropout
Voltage

: 0.23 /lV or better
.
:+4 dB
:-6 dB
: 70 dB
:3W
:2W
:45 dB
: 0.1 /lV
: 1 /lV
:55 dB
: 100 dB
:9V

48

Current Drain at No
Signal
Current Drain at
Maximum Output

: 350mA
: 550mA

SELCALL
Standard
Encode/Decode Format
Transmit Tones
Receive Tones
Tone Periods
Lead-In Delay
Lead-In Tone

: CCIR International
: 5 Tones
:0-9,A-D,F

:0 - 9

: 20, 40, 70, 100mSec
: 500mSec, 1, 2, 3, 4Sec
:0-9,A-F

49

Warranty
Uniden Sundowner UH-100 UHF CB Radio
Australian One Year Warranty
Note: Please keep your sales docket as it provides evidence of warranty.

WARRANTOR:UNIDEN Australia Pty. Limited ACN 001 865498
ELEMENTS OF WARRANTY: UNIDEN warrants to the original retail owner for the
duration of this warranty, its Sundowner UH-100 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, shall terminate
and be of no further effect ONE(1) Year 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) Modified, altered or used as part of any conversion kits,
subassemblies, or any configurations 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 part of a system not manufactured by Uniden, (F) Installed, programmed or
serviced by anyone other than an authorized Uniden Repair Agent, or (G) Where the
Serial Number label of the product has been removed or damaged beyond recognition.
PARTS COVERED: This warranty covers for 1 year, the Sundowner UH-100 UHF CB
Transceiver Unit only. All accessories, mounting bracket, DC cable, fuse, and
microphone are covered for 90 days.
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 COVER OR PROVIDE FOR THE
REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR CONSEQUENTIAL
DAMAGES.
WARRANTY CARD: If a warranty card has been included with this product, please fill
it in and return it to us within 14 days of purchase. Your name and serial number of the
product will then be registered in our database and this will help us process your claim
with greater speed and efficiency should you require warranty service.
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, (eg/ a copy of the sales
docket, to the warrantor at:
UNIDEN AUSTRALIA PTY, LIMITED
SERVICE DIVISION
345 Princes Highway, Rockdale, NSW 2216
Ph (02) 95993100 FAX (02) 95993278
Customers in other states should ship or deliver the Product
freight pre-paid to the nearest Uniden Authorized Repair Centre.
(Contact Uniden for the Warranty Agent nearest you.)
50

unidE!n@
Australia Pty. Ltd.
345 Princes Highway, Rockdale, N.S.W.2216
Phone:(02) 9599 3100
Fax:(02) 9599 3278

Uniden@is a registered trademark of Uniden Corporation.
Features, specifications, and availability of optional accessories are all
subject to change without notice.

UTZZ01864ZZ

@ Copyright

----

-

1996 Uniden Australia

Pty. Ltd.

---.....~:

j



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