Midland CT990 Handbuch
DUAL BAND VHF / UHF TRANSCEIVER
INSTRUCTION GUIDE
CT990
SPECIAL FEATURES
Ultra high
output power IP67
certified Dead man
function
10W
Midland CT990 instruction guide
Index
The package includes 1
Maintenance 1
Main features 2
Main controls and parts of the radio 3
Radio buttons 3
LCD Display 5
Working modes available 7
Battery recharge - How to use the desktop charger 7
Functions and Menu 8
Menu list 8
Squelch level (Squelch-Level) - Menu Utilities 1 9
High/low power selection (TX Power) - Menu Utilities 2 9
Step di Frequenza (Step) - Menu Utilities 3 9
Frequency oset (O-Set) - Menu Utilities 5 10
Wide/narrow bandwidth (Bandwidth) - Menu Utilities 6 10
Transmitting with CTCSS tones (TX QT/DQT) - Menu Utilities 8 11
Receiving and transmitting with the same CTCSS/DCS tone -
Menu Utilities 9 11
DQT mode - Menu Utilities 10 11
Scan of frequencies with CTCSS (Seek QT) - Menu Utilities 11 12
Scan of frequencies with DCS (Seek DQT) - Menu Utilities 12 12
VOX (VOX function) - Menu Utilities 13 12
VOX sensitivity (VOX Level) - Menu Utilities 14 12
VOX Delay - Menu Utilities 15 13
Midland CT990 instruction guide
TOT function (Time Out Timer) - Menu Utilities 16 13
Roger Beep, end transmission tone (ROGER BEEP) -
Menu Utilities 17 13
Power save (RX SAVE) - Menu Utilities 19 14
SCAN (SCAN MODE) - Menu Utilities 20 14
Dual Watch function (DUAL WATCH) - Menu Utilities 21 15
Beep tone (BEEP) - Menu Utilities 22 15
Voice function (VOICE) - Menu Utilities 23 15
FM radio interruption (FM INTERRUPT) - Menu Utilities 24 15
Backlight brightness (Brightness) - Menu Utilities 26 16
ID (ID VERIFICATION) - Menu Utilities 27 16
Transmitting the ID code (PTT-ID) - Menu Utilities 28 16
Keypad lock (LOCK MODE) - Menu Utilities 30 17
Side tone (Side Tone) - Menu Utilities 31 17
Power on image (POWER ON DISPLAY) - Menu Utilities 33 18
Welcome message (POWER ON MSG) - Menu Utilities 34 18
Battery voltage (VOLTAGE) - Menu Utilities 35 19
Man down (MAN DOWN) - Menu Utilities 36 19
Functions enabled in channel mode only 20
Adding a channel to scan (SCAN LIST) - Menu Utilities18 20
Setting the priority channel (SCAN PRIORITY) - Menu Utilities 19
20
Working modes (CH-Freq + CH-Display) - Menu Utilities 34 20
Channel name (CHName) - Menu Utilities 35 21
Reset 21
Troubleshooting 22
Technical specifications 23
Midland CT990 instruction guide | 1
The package includes
• CT990 transceiver
• Belt clip
• Antenna
• Li-Ion battery pack 2800mAh
• Desktop charger
• Wall adaptor
• Wrist belt
If any item is missing, please notify your Midland dealer.
Maintenance
Your Two Way Radio is an electronic product of exact design and should be
treated with care.
The suggestions below will help you to fulfill any warranty obligations and to
enjoy this product for many years.
• Do not attempt to open the unit. Non-expert handling of the unit may
damage it.
• Do not store the Radio under the sunshine or in hot areas. High tempe-
ratures can shorten the life of electronic devices, and warp or melt certain
plastics.
• Do not store the radio in dusty and dirty areas.
• Keep the Radio dry. Rainwater or damp will corrode electronic circuits.
• If it appears that the Radio diuses peculiar smell or smoke, please shut o
its power immediately and take o the charger or battery from the Radio.
• Do not transmit without antenna.
• Do not use detergents, alcohol, solvents or abrasives to clean the radio. Just
use a soft clean cloth.
2 | Midland CT990 instruction guide
Main features
• Dual band (VHF/UHF) displayed
• Frequency band (to set according to country/area of use): 144-146 MHz
& 430-440MHz (Rx / Tx).
• Working mode: UHF-VHF, VHF-VHF or UHF-UHF
• Ultra high output power: 10W VHF / UHF
• IP67 certified
• High performance antenna
• Ultra clear voice
• Dead Man function
• DQT function (private conversations)
• 257 memory channels
• Wide colorful LCD display
• Li-Ion battery pack 2800mAh
• Repeater tones
• Individual/group selective calls
• Side tone: end transmission noise muer
• VOX function
• 83 + 83 DCS codes and 38 CTCSS tones
• Voice annoucement “VOICE”
• Selectable channel spacing 25kHz/12,5 kHz
• Channel number, channel number+frequency, channel name displayed
• Reverse frequency
• Scan
• FM radio
• Frequency step: 0.5Khz, 2.5KHz, 5 kHz, 6.25 kHz, 10 kHz, 12.5 kHz, 25
kHz, 37.5KHz, 50 kHz or 100kHz
• Selectable output power: high (10W) or low (5W)
• Frequency oset
• Shift repeater
• ”Busy channel lock out” function
• Output power level indicator on the display
• Low battery voice indicator
• Roger Beep
• TOT (time out timer)
• Keypad lock
• Function/channel reset
Midland CT990 instruction guide | 3
Main controls and parts of the radio
Radio buttons
Menu
CT990
Menu
CT990
1
1. Antenna
2. Encoder: rotate it to select the desired channel
3. Power / Switch / Volume control: Rotate to turn on/o CT990 and to
adjust the volume
4. Led: transmission (red) / reception (green)
5. LCD Display
6. Microphone
7. < Back: press to exit the Menu and functions. A/B (appears on the di-
splay):push to select the desired frequency (VHF or UHF) in the main
or secondary display.
4 | Midland CT990 instruction guide
8. VFO/MR: push to switch from channel to frequency mode or viceversa.
9. */ : press for 2 seconds to lock the keypad
10. Alphanumerical keypad
11. ▲/▼keys: push to select functions / Menu
12. Menu: press to enter the Menu functions and to confirm your selections.
13. Side-key CALL: Selective call/Transmission on the secondary frequency.
This control is useful to send out the selective call or the 1750Hz repeater
tone.
14. PTT
15. Side key MON: Keep pressed to activate the Monitor feature .
16. Holes for the belt clip
17. MIC/SP: external speaker/mike jack 2 Pin Kenwood.
18. 2800mAh Li-Ion battery oack.
Midland CT990 instruction guide | 5
LCD Display
This icon indicates where the radio is operating, in which fre-
quency or function. The arrow is displayed close to the fre-
quency band in use.
Frequency set in the main display (this frequency is only indi-
cative)
Frequency set in the secondary display (indicative frequency)
Memory channel
Menu Menu
icon relevant to Back control
Operating band signal
FM radio
Battery save function enabled
Beep on
Man Down function activated
DTMF message received
Keypad lock activated
Battery level indicator
6 | Midland CT990 instruction guide
Operating band
Scan function activated
High power indicator; in case the low power is selected, the
display will show L
Bandwidth. W = wide; N = narrow
DCS code enabled; or “C “ will appear on the display if a CTCSS
tone is activated
VOX function enabled
identification code
Busy channel lockout function activated
End tone (end transmission noise muer) activated
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