M-tech Legend IV User manual

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LegendIVusermanualcovernew.pdf228/1/201610:03

SECTION 1 Introduction
SECTION 2 Features
SECTION 3 Controls and Rear Panel
SECTION 4 Installation
4.1 - Antenna installation
4.2 - Power installation
4.3 - Basic operations to be carried out before
using your set for the fi rst time
4.4 - Adjustment of SWR (Standing Wave Ratio)
SECTION 5 Operation
5.1 - Power ON/OFF control
5.2 - Volume control
5.3 - ASQ (Automatic Squelch Control) / SQL
5.4 - S/RF meter
5.5 - Channel select
5.6 - Mode selector AM/FM or LO/DX
5.7 - MON(Monitor)
5.8 - MEM/SCAN
5.9 - Lock
5.10 - Ch 9/19
5.11 - Micro plug RJ45
5.12 - Transmission
5.13 - Menu functions
5.14 - Confi guration (Confi guration: EU;PL;D,EC;UK)
5.15 - MENU/ENTER
SECTION 6 Specifi cations
SECTION 7 Glossary
SECTION 8 Frequency List
8.1 - Confi g1 frequency list (EU Confi guration)
8.2 - Confi g2 frequency list (PL Confi guration)
8.3 - Confi g3 frequency list (D Confi guration)
8.4 - Confi g4 frequency list (EC Confi guration)
8.5 - Confi g5 frequency list (UK Confi guration)
SECTION 9 Tones
SECTION 10 Declaration of Conformity
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Table of Contents

Introduction
Welcome to the world of Citizens Band radio communications. Your
radio is an advanced mobile radio designed for use in the Citizens
Band (CB) Radio Service. It will operate on any of the 40 AM/FM
frequencies. Your Radio features a super heterodyne circuit with
PHASE LOCKED LOOP techniques to assure precise frequency control.
This document is the operating guide for the CB Transceiver
LEGEND IV.
Included in your package
If any of these items are missing or damaged, immediately contact
your place of purchase.
LEGEND IV CB radio
Mounting bracket, mic hanger, knobs, and mounting hardware
Microphone and hook Cable
NOTES! You must use a CB antenna (sold separately) with this radio.
SECTION 1
NOTES!
2

Features
Function
• LCD Display
• AM/FM Mode select
• Memory (Memory Channel)
• Emergency CH9 / CH19 Mode
• All Channel Scan
• Memory Channel Scan
• Roger Beep
• Key Beep
• Key Lock
• TOT (Trasmit Time Out Timer)
• S / RF Meter indicator
• Volume Control
• Squelch Control (Auto (ASQ)/ Manual)
• RF GAIN LOCAL / DX Control
• NB (Noise Blanker)
• HI-CUT Function
• VOX (Voice Operated Transmission)
VOX Adjust Mode - MIC Sensitivity LeveL Control (1 - 9 steps) /
Anti VOX Level Control (OFF, 1 - 9 steps) /
VOX Delay Time Control (1 - 9 steps)
• EC / EN mode select [For UK Confi guration]
Detail of the multi confi guration
Configuration FM Channel AM Channel Country And
Region
EU 40 CH (4W) 40 CH (1W)
BE, BG, CH, CY, EE,
ES, FI, FR, GR, IE, IS,
IT, NL, PT, RO, SE
PL -5KHz 40 CH (4W) -5KHz 40 CH (4W) PL
D 80 CH (4W) 40 CH (4W) DE
EC 40 CH (4W) -AT, CZ, DK, HU, LU,
LT, LV, MT, NO, SI, SK
UK EC 40 CH (4W) +
EN 40 CH (4W) -UK
SECTION 2
3

1 . Power
2 . Volume
◀
◀
3 . Squelch
4 . Display
5 . Channel selector
◀
◀
6 . AM / FM and LO / DX
7 . MEM and SCAN
8 . LOCK
9 . MON
10 . CH 9 / 19
11
. MENU and ENTER
12 . Microphone plug - RJ 45
13
. PTT - Push To Talk
A. Power supply
B. Antenna connector
C. Jack for external loud
speaker
Controls and Rear Panel
Controls
*These drawings are just for reference, and do not reflect the final product.
1
2
5
4
8
10
9
11
6
13
12
7
3
C
AB
SECTION 3
4

Where and how to mount your mobile CB radio
• You should choose the most appropriate setting from a simple
and practical point of view.
• Your CB radio should not interfere with the driver or the passengers.
• Remember to provide for the passing and protection of different
wires (e.g, power ,antenna, accessory cabling) so that they do not
interfere in any way with the driving of the vehicle.
• To install your equipment, use the cradle ①and the self-tapping
screws ② provided (drilling diameter 3.2mm). Take care not to
damage the vehicle's electrical system while drilling the dash board.
• Do not forget to insert the rubber joints ③ between the CB and
it's support as these have a shock-absorbing effect which permits
gentle orientation and tightening of the set.
• Choose where to place the microphone support and remember
that the microphone cord must stretch to the driver without
interfering with the controls of the vehicle.
Installation
WARNING! DO NOT connect this equipment to a power supply if you are not
absolutely certain of the grounding type!
2 2
1
C
A
B
3
BLACK
RED
A. Power supply ( DC. 12 V )
B. Antinna connector ( SO - 239 )
C. Jack for external loudspeaker
( 8 Ω, ∅ 3 . 5 mm )
SECTION 4
5

4.1 Antenna installation
a. Choosing your antenna
• For CB radios, the longer and matched antenna is the better results.
b. Mobile antenna
• Must be fixed to the vehicle where there is a maximum of metallic
surface
( ground plane ) , away from windscreen mountings.
• If you already have a radio
- telephone antenna installed, the CB
antenna should be higher than this.
• For an antenna which must be fixed by drilling, you will need a good
contact between the antenna and the ground plane.
• To obtain this, you should lightly scratch the surface where the screw
and tightening star are be placed.
• Connect the antenna Ⓑ.
c. Fixed antenna
• A fixed antenna should be installed in as clear space as possible, If it
is fixed to a mast, it will perhaps be necessary to stay it ,according to
the laws in force
( you should seek professional advice ) .
Connecting An External Antenna
You will need to purchase an antenna to operate the radio. There are
two basic types of mobile CB antennas--full-length whips and loaded
whips -- with a wide variety of mounts to suit different vehicle locations.
• Choose an antenna that matches the specifications of this radio.
• Follow the manufacturer’s installation instructions carefully.
• Tune your antenna using a Standing
- Wave Ratio ( SWR ) meter: set the
radio to channel
20 , and adjust the antenna until the SWR is as close as
1 : 1 as possible.
WARNING! The antenna used for this radio must be installed at least
25 inches (63 cm) away from all persons. The antenna must not be
collocated or used with any other antenna or transmitter.
CAUTION! Never operate your radio with no antenna or with a damaged
antenna cable. This can damage the radio.
CAUTION! Make sure the SWR is less than 2:1 before using the radio. An SWR
higher than 2:1 can damage the transmitter.
Your dealer can help you select the antenna that is best for your needs.
Cinsult the specifications in the back of this manual for detailed transmitter
and antenna information.
SECTION 4
and antenna information.
6

4.2 Power installation
a. Choosing your antenna
Your LEGEND IV is protected against an inversion of polarities. Your
equipment must be supplied with a continued current of DC.12V Ⓐ.
1 . Check that the battery is of 12 volts.
2 . Locate the positive and negative terminals of the battery ⊕is red
and ⊖ is black.
3 . It is necessary to connect your CB to a permanent ⊕and ⊖.
4 . Connect the red wire ⊕ to the positive terminal of the battery and
the black ⊖ wire to the negative terminal of the battery.
5 . Connect the power cable to your CB radio.
4.4 Adjustment of SWR (Standing Wave Ratio)
4.3 Basic operations to be carried out before using your set for
the fi rst time
* Without transmitting and without using the <push-to-talk> switch on the microphone
1 . Connect this microphone.
2 . Check the antenna connections.
3 . Turn the set on by pushing and holding the power key.
4 . Adjust the volume to a comfortable level.
5 . Go to channel 20 using either the <UP><DN> key on the microphone.
WARNING! This must be carried out when you use your CB radio for the fi rst time
(and whenever you re-position your antenna). The adjustment must
be carried out in an obstacle-free area.
WARNING! Never replace the original fuse (3 Amp.) by one of a different value.
* Adjustment with an external SWR meter.
a. To connect the SWR meter:
• Connect the SWR meter between the CB radio and the antenna as
close as possible to the CB
B. To adjust the SWR meter:
• Set the CB to channel 20 in FM.
• The reading on the Meter should be as near as possible to
1 . If this is
not the case ,re
- adjust your antenna to obtain a reading as close as
possible to
1 . ( An SWR reading between 1 and 1 . 8 is acceptable ) .
• It will be necessary to re
- calibrate the SWR meter after each
adjustment of the antenna.
SECTION 4
7

* Drawing is just for reference.
LCD Display Layout
Operation
A
P
O
N
M
L
B
C
D
E F
G
H
I
J
K
Element of LCD Contents of the Indicator
5.2 Volume Control
Push VOL up/down key.
Volume steps from 00 to 12.
5.3 ASQ (Automatic Squelch Control)/SQL
Suppresses undesirable background noises when
there is no communication.
Squelch does not affect neither sound nor
transmission power, but allows a considerable
improvement in listening comfort.
a) ASQ: Automatic Squelch Control
Press and hold SQL key for 2 seconds. The LCD
display you selected mode for a while.
b) SQL (Manual Squelch Level) Adjustment
Press SQL key into adjust the level mode. The
squelch level can select from 00 to 12 by press
up/down keys.
A. Memory Channel
B. Configuration
C. Channel
D. Mode
E. ASQ
/ SQL
F. Key Beep
G. Roger Beep
H. R.F Gain
I. CTCSS
/ DCS code
J. Key Lock
K. Frequency
L. Noise Blanker
M. High Cut
N. Signal Bar
/ Power
O. Emergency Channel
P. TX
/ RX
5.1 Power ON/OFF Control
Push and hold POWER key.
Power ON/OFF is switched alternately.
The LCD Display current status.
SECTION 5
8

* Drawing is just for reference.
Element of LCD Contents of the Indicator
5.4 S/RF Meter
SRF meter indicate the receiving signal strength
in RX mode. The SRF meter is used as RF power
indicator in TX mode. SRF meter indicators are 7
steps from 1 (weak) to 7 (strong)
5.5 Channel Select
Push or push and hold up/down keys.
5.6 Mode Selector AM/FM or LO/DX
a) Mode Selector AM/FM (short push)
This switch allows selecting the AM or FM
modulation. Your modulation mode has to
correspond to the one of your correspondent.
1. Push AM/FM key.
2. AM/FM 2nd function (only in UK configuration)
Allows to alternate the frequency bands EC and
EN in the UK configuration.
AM/FM or EC/EN are switched alternately.
b) LO/DX (long push 2 seconds)
Allows the automatic adjustment of the RF Gain
for close communication.
1. Push and hold LO/DX (AM/FM) key.
2. LO/DX is switched alternately.
5.7 MON (Monitor)
The MON function deactivates the squelch
function, it is used for "fast listening".
Push MON key to activate the MON function.
MON function on/off alternately.
SECTION 5
9

* Drawing is just for reference.
Element of LCD Contents of the Indicator
5.8 MEM/SCAN
a) MEM (short push)
Those function are memorized when memory
command is done : Mode AM/FM , Channel
number and CTCSS or DCS.
MEM Store (8 memories)
1. Select the channel to be memorized.
2. Push MEM key.
3. With the up/down keys, select the memory
address to be store (address from 1 to 8)
4. Push and hold MEM key to store the
selected channel.
MEM Call
1. Push MEM key.
2. With the up/down keys to select the memory
to be called.
3. Push MEM key to select the memorized channel.
WARNING: All memories are cleared at configuration change.
b) SCAN (long push 2 seconds)
There are 2 SCAN types: All channels SCAN type
(normal), "SCAN" icon is displayed.
MEM channels SCAN type, "MEM" and "SCAN"
icons are displayed. Push and hold SCAN (MEM)
key to start the SCAN. On the MEM SCAN type,
both emergency channels are scanned with the
memorized channels. To quit the SCAN function
press SCAN (MEM) key.
5.9 Lock
Push and hold LOCK key to lock the key. During
the LOCK mode, only allow PTT and Power keys.
5.10 CH 9/19
Push and hold the CH 9/19 key to active instantly
these emergency channels.
SECTION 5
10

* Drawing is just for reference.
Element of LCD Contents of the Indicator
5.11 Micro Plug RJ45
The plug is located on the front panel of the
transceiver and makes the setting of the
equipment into the dashboard easier.
Push 1, pull 2 to remove
5.12 TRANSMISSION
a) PTT
Press to transmit a message, TX is displayed and
release to listen to an incoming communication.
To transmit, you can also use the VOX function.
b) VOX TRANSMISSION
The VOX function allows transmitting by speaking
into the microphone without pressing the PTT
switch. During the LOCK mode, only allow PTT
and Power keys.
* Background noise is most concerned, adjust the “Sensitivity”
for operating
5.13 Menu Functions
CTCSS /DCS
• CTCSS and DCS can be set on FM mode only.
• CTCSS (Continues Tone Coded Squelch System)
and DCS (Digital Codes Squelch) are two tone
squelch methods.
• Squelch functions often depend on the field strength
or are controlled via the signal-to-noise ratio.
• Each transmission on the selected channel
and each interference carrier as well will
open the squelch.
•All radios belonging to a certain speech circuit
have to be operated using the same CTCSS
frequency or the same DCS code.
• The squelch of the receiving radio only opens
when a signal featuring the corresponding
CTCSS/DCS is received.
• 38 CTCSS tones and 104 DCS codes are available.
• Push the MENU key to select CTCSS/DSC setting.
Current CTCSS/DCS setting is displayed.
• Push up/down keys to select the CTCSS tone
or DCS code. The DCS code with TI/RI, TN/RN,
TN/RI, TI/RN Selection.
* N = Normal, I = Inverse
* Advanced design for connection at the waiting channel.
SECTION 5
11

* Drawing is just for reference.
Element of LCD Contents of the Indicator
Memory Scan
Push the MENU key to select MEMO SCAN setting.
Current setting is displayed. Push up/down keys
to select the On or Off.
Vox Sensitivity Level
The VOX Sensitivity Level allows the adjustment
of the microphone for an optimum transmission
quality. Push up/down keys to select the
VOX SENSITIVITY.
Anti Vox Level
ANTI VOX function checks speaker volume and
inhibits VOX transmission. This is to prevent an
easy loop from speaker sound to MIC. Push the
MENU key to select ANTI VOX setting. Current
setting is displayed. Push up/down keys to select
the level.
Vox Delay Time
VOX delay time is max wait time from the
end of transmission request to actual end of
transmission. If transmission request is detected
in delay time, transmission will be done without
pause. Push the MENU key to select VOX DELAY
setting. Current setting is displayed. Push up/
down keys to select the time.
NB
These filters allow reducing back ground noises
and some reception interferences. Push the
MENU key to select NB setting. Current setting is
displayed. Push up/down keys to select the on
or off.
HIC
Eliminates high frequency interferences. Push
the MENU key to select HIC setting. Current
setting is displayed. Push up/down keys to select
the on or off.
SECTION 5
12

* Drawing is just for reference.
Element of LCD Contents of the Indicator
Speaker
Select the receiving audio speaker. Push the
MENU key to select Audio path setting. Current
setting is displayed.
Push up/down keys to select the main speaker or
MIC speaker or both main and MIC speaker.
Roger Beep
Roger Beep is a short tone that is transmitted
at the end of transmission. Push the MENU key
to select ROGER BEEP setting. Current setting is
displayed. Push up/down keys to select on or off.
Key Beep
Push the MENU key to select KEY BEEP setting.
Current setting is displayed. Push up/down keys
to select on or off.
Tx Time Out Timer
This function limit the continuously transmitting
time. Push the MENU key to select TOT setting.
Current setting is displayed. Push up/down keys
to select the time.
Back Light Colour (5 Colours)
Push the MENU key to select BACK LIGHT COLOUR
setting. Current setting is displayed. Push up/
down keys to select the color.
Dimmer
The DIMMER function changes the intensity
of the back light. Push the MENU key to select
DIMMER setting. Current setting is displayed. Push
up/down keys to select the intensity.
SECTION 5
13

* Drawing is just for reference.
Element of LCD Contents of the Indicator
LCD Contrast
The Contrast function changes the contrast (from 1
to 10) the characters. Push the MENU key to select
Contrast setting. Current setting is displayed. Push
up/down keys to select the contrast.
5.14 Confi guration
(confi guration: EU;PL;D,EC;UK)
The frequency bands have to be chosen
according to the country of use. Don't use any
other configuration. Some countries need a
user's license.
1. Turn POWER on with the up and downs keys
push. ConF and current setting are displayed.
2. Push up/down keys to select configuration.
3. Push PTT key to restart the radio with
setted configuration.
5.15 MENU/ENTER
a. MENU (short push)
Push MENU key to active the MENU mode. Push MENU key once more,
current setting is stored and menu changes from next setting (see
table). If no setting is done during 10 seconds, the unit exits from
MENU mode.
№MENU Item Effective Selectable Item Default
aCTCSS/DCS FM mode only OFF, CTCSS: 1 to 38, DCS: 1
to 104 OFF
bMEMO SCAN ON/OFF OFF
cVOX SENSITIVITY OFF, 1 to 9 OFF
dANTI VOX LEVEL VOX selected OFF, 1 to 9 OFF
eVOX DELAY TIME VOX selected 1 to 9 (0.5, 1, 1.2,1.5 1.8, 2.0,
2.5, 3, 4 SEC.) 6
fNB (Noise Blanker) ON/OFF OFF
gHIC (HI Audio Cut) ON/OFF OFF
hSPEAKER MAIN SPK/ MIC SPK/ BOTH MAIN
iROGER BEEP ON/OFF OFF
jKEY BEEP ON/OFF ON
k TX TIME OUT TIMER OFF/ 2MIN./ 2.5MIN./ 3MIN. 3MIN.
SECTION 5
14

b. ENTER (long push 2 seconds)
Push and hold ENTER (MENU) key or push PTT key to complete the setting
and exit the MENU mode.
№MENU Item Effective Selectable Item Default
lBACK LIGHT
COLOUR
GREEN CYAN BLUE RED
PINK GREEN
mDIMMER OFF 1 to 9 6
nLCD CONTRAST 1 to 10 6
Specifi cations
General
Channels 40 (EU)
Modulation Modes AM/FM
Frequency Ranges from 26.965 MHz to 27.405MHz
CTCSS Tones 38
DCS Codes 104 (with Normal / Inverse selection)
Antenna Impedance 50 ohms
Power Supply DC.12V
Transmitter
Frequency Allowance +/-200Hz
Carrier Power 4W/1W
Transmission Interference <4nW
Audio Response 300Hz to 3KHz
Emitted Power In The Adj. Channel <20µW
Microphone Sensitivity 7mW
Drain <1.8A(with modulation)
Modulated Signal Distortion 3%
Receiver
Max. Sensitivity at 20dB Sinad <1µV
Frequency Response 300Hz to 3KHz
Adjacent Channel Selectivity >60dB
Maximum Audio Power >2W
Squelch Sensitivity minimum <0.5µV; maximum =1mV
Frequency Image Rejection Rate >60dB
Intermediate Frequency Rej. Rate >60dB
Drain <700mA
* Specifications and features are subject to change without notice.
SECTION 6
15

Glossary
Technical Vocabulary
AM Amplitude Modulation
CB Citizen's Band
CH Channel
CW Continuous Wave
DX Long Distance Liaison
DW Dual Watch
FM Frequency Modulation
GMT Greenwich Meantime
HF High Frequency
LF Low Frequency
LSB Lower Side Band
RX Receiver
SSB Single Side Band
SWR Standing Wave Ratio
SWL Short Wave Listening
SW Short Wave
TX Transmitter
UHF Ultra High Frequency
USB Upper Side Band
VHF Very High Frequency
NORMS
№Configuration
Code FM Channel AM Channel Country
1EU 40 CH (4W) 40 CH (1W) BE, BG, CH, CY, ES, FI,
FR, GR, IE
2PL -5KHz 40CH (4W) -5KHz 40CH
(4W) PL
3D 80 CH (4W) 40 CH DE
4EC 40 CH (4W) -AT, CZ, DK, EE, HU, LU,
MT, NO, SI, SK
5UK EC 40 CH (4W) +
EN 40 CH (4W) -UK
SECTION 7
16

Frequency List
8.1 CONFIG 1 Frequency List (EU Confi guration)
CONFIG 1 / EUROPE 40 CH FM (4W), 40 CH AM (4W)
CH № Frequency (MHz) AM RX AM TX FM RX FM TX
126.965   4W   4W
226.975   4W   4W
3 26.985   4W   4W
427.005   4W   4W
52 7. 015   4W   4W
62 7. 0 2 5   4W   4W
727.035   4W   4W
827.055   4W   4W
927.065 4W 4W
10 2 7. 0 75   4W   4W
11 2 7. 0 8 5   4W   4W
12 2 7.1 0 5   4W   4W
13 27.115   4W   4W
14 27.125   4W   4W
15 2 7.13 5   4W   4W
16 27.155   4W   4W
17 2 7.16 5   4W   4W
18 2 7.175   4W   4W
19 27.18 5 4W 4W
20 2 7. 2 0 5   4W   4W
21 2 7. 215   4W   4W
22 2 7. 2 2 5   4W   4W
23 27.255   4W   4W
24 2 7. 2 3 5   4W   4W
25 2 7. 2 4 5   4W   4W
26 2 7. 2 6 5   4W   4W
27 27.275   4W   4W
28 2 7. 2 8 5   4W   4W
29 2 7. 2 9 5   4W   4W
30 2 7. 3 0 5   4W   4W
31 2 7. 315   4W   4W
32 27.325   4W   4W
33 27.335   4W   4W
34 27.345   4W   4W
35 27.355   4W   4W
36 2 7. 3 6 5   4W   4W
37 2 7. 3 75   4W   4W
38 2 7. 3 8 5   4W   4W
39 2 7. 3 9 5   4W   4W
40 27.405   4W   4W
* CH 9 and CH 19 are shown by in the table.
SECTION 8
17

8.2 CONFIG 2 Frequency List (PL Confi guration)
CONFIG 2 / POLAND -5KHz 40 CH FM (4W), 40 CH AM (4W)
CH № Frequency (MHz) AM RX AM TX FM RX FM TX
126.960   4W   4W
226.970   4W   4W
3 26.980   4W   4W
427.000   4W   4W
52 7. 010   4W   4W
62 7. 0 2 0   4W   4W
72 7. 0 3 0   4W   4W
827.050   4W   4W
927.060 4W 4W
10 2 7. 0 7 0   4W   4W
11 2 7. 0 8 0   4W   4W
12 2 7.1 0 0   4W   4W
13 2 7.11 0   4W   4W
14 27.120   4W   4W
15 2 7.13 0   4W   4W
16 27.150   4W   4W
17 2 7.16 0   4W   4W
18 2 7.17 0   4W   4W
19 27.18 0 4W 4W
20 2 7. 2 0 0   4W   4W
21 2 7. 21 0   4W   4W
22 2 7. 2 2 0   4W   4W
23 2 7. 2 5 0   4W   4W
24 2 7. 2 3 0   4W   4W
25 2 7. 2 4 0   4W   4W
26 2 7. 2 6 0   4W   4W
27 27.270   4W   4W
28 2 7. 2 8 0   4W   4W
29 2 7. 2 9 0   4W   4W
30 2 7. 3 0 0   4W   4W
31 2 7. 310   4W   4W
32 27.320   4W   4W
33 2 7. 3 3 0   4W   4W
34 2 7. 3 4 0   4W   4W
35 27.350   4W   4W
36 2 7. 3 6 0   4W   4W
37 2 7. 3 7 0   4W   4W
38 2 7. 3 8 0   4W   4W
39 2 7. 3 9 0   4W   4W
40 2 7. 4 0 0   4W   4W
* CH 9 and CH 19 are shown by in the table.
SECTION 8
* CH 9 and CH 19 are shown by
18