Midland CT 710 VHF/UHF Transceiver

Content Overview

This document provides detailed instructions for the Midland CT 710 VHF/UHF Transceiver. Key sections include:

• Content: List of included items and initial checks.
• Maintenance: Care and handling instructions.
• Main functions: Overview of the transceiver's capabilities.
• Description of the device: Details on the LCD display and physical components.
• Basic operations: Step-by-step guides for common tasks like antenna setup, power on/off, monitoring, transmitting, and mode selection.
• Menu function: In-depth explanation of menu operations, settings, and advanced features.
• CTCSS tone table: List of available CTCSS tones.
• DCS: Digital code table: List of available DCS codes.
• Table of solutions: Troubleshooting common problems.
• Technical Specification: Detailed technical data.

Maintenance

Your transceiver 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 temperatures 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 diffuses peculiar smell or smoke, please shut off its power immediately and take off the charger or battery from the radio.
• Do not transmit without antenna.

Included Items:

• CT 710 transceiver
• Antenna
• Li-ion battery pack 1600mAh
• Belt clip
• Desktop charger with wall adaptor
• Quick Guide

If any items are missing or have been damaged during shipment, please notify your MIDLAND dealer.

Main Functions

• Dual band (VHF/UHF) displayed
• Frequency band: 144-146MHz & 430-440MHz (Rx / Tx).
• Working mode: UHF-VHF, VHF-VHF or UHF-UHF
• Output power: 5W VHF / 4W UHF
• 128 stored channels
• Scrambler (levels can be programmed via software)
• Compander (programmable via software)
• VOX function
• 210 DCS codes and 50 CTCSS tones
• "VOICE" function
• SOS emergency function
• Channel spacing selectable between 25kHz and 12.5 kHz
• Display options: channel name + channel number, channel number + frequency, channel number, or frequency
• Inverted frequency function
• Scan function
• FM radio receiver
• Frequency Step: 5 kHz, 6.25 kHz, 10 kHz, 12.5 kHz, 25 kHz
• Selectable tx power: high (4-5W) or low (1W)
• Li-Ion battery pack 1600mAh
• Frequency Offset: 0-69.950 MHz
• Shift repeater
• "Busy channel lockout" frequency (programmable via software)
• Tx signal strength indicator on the display
• Low battery vocal indication
• Roger Beep tone at the beginning or end transmission
• TOT (Time out timer)
• Keypad lock
• Scan of frequencies with CTCSS/DCS
• Scan priority
• DTMF
• Reset of functions and channels
• 1750 / 1450 / 2315 tone to connect to repeaters (programmable via software)
• Jack for external speaker/mike: 2 Pin KENWOOD type

Description of the Device

LCD Display

Transceiver Components

Basic Operations

Antenna Installation

Insert the base of the supplied antenna into the SMA connector by rotating it clockwise until it is securely set. To remove, rotate counter-clockwise.

Turning On and Off the Power

To turn on the power, rotate the PWR/VOL knob clockwise until a beep sound is heard. All icons and frequencies will appear on the screen. The speaker will remain silent until a call is received due to the automatic squelch function. Adjust volume by turning the knob. To turn off, rotate the PWR/VOL knob counter-clockwise until a beep is heard, and all icons and frequencies disappear.

Monitoring Function

Hold down the ENTER key for two seconds and adjust the volume using the PWR/VOL knob to hear background noise without waiting for signals. Pressing the PTT key will turn off the squelch.

Transmitting

Press the PTT key and speak in an ordinary tone. The transmitting indicator lights up red while the PTT key is pressed. If you are too close to the microphone or speaking too loudly, reception may be unclear. Release the PTT key to listen for a response.

Select Mode

You can select four different operative modes:

1. Dual-band mode
2. Single band mode
3. Channel mode
4. Frequency mode

Press flank key 1 for two seconds to enter or exit dual-band or single-band mode.

Dual-band Mode

When dual-waiting mode is selected, the display shows two bands, A or B. If band A is displayed, frequency A can receive and transmit, while band B can only receive. The same applies if band B is displayed. Briefly press flank key 1 to switch between band A and B.

Single-band Mode

Press flank key 1 for two seconds. The display will show:

R 145.025
T 145.025

The radio now operates in single-band mode only. Press flank key 1 to switch between bands.

Channel Mode

Press the VFO/MR key to switch to channel mode. Different options can be displayed:

• Display the current channel number: e.g., CH-001.
• Display the current channel name and channel number: e.g., CH-001 (channel name in use, programmable via software), followed by the current channel number (001).
• Display the receive / transmit frequency and the current channel: e.g., R 145.025, T 145.025, 001.

Frequency Mode

'SINGLE BAND'

R 430.02500
T 430.02500

(receive frequency, transmit frequency)

'DUAL BAND'

A 145.025
B 430.025

Press flank key 1 for two seconds to enter or exit dual-band or single-band mode.

Radio Function

This radio includes an FM function. Press MENU and then flank key 1 or 2 to enter radio status. Turn the encoder to select your favorite radio frequency. Radio stations can be programmed via software; press VFO/MR to switch to programmed frequencies. To exit radio mode, press MENU and then flank key 1 or 2.

The Flank Key Definition

Using the programming software, flank key 2 can be defined for:

1. DTMF code call
2. Send 1450Hz code
3. Send 1750Hz code
4. Send 2315Hz code

When defined, pressing flank key 2 activates the selected function.

DTMF Code

This radio supports DTMF. In transmitting status, pressing keypad numbers or flank keys issues the corresponding DTMF code. The key assignments are:

• MENU: A
• ENTER: B
• VFO/MR: C
• FM: D

DTMF programmed by software: Once programmed, press flank key 2 to show DTMF. Input the 8-digit DTMF codes. Rotate the encoder to correct errors. Counterclockwise rotation deletes one digit at a time; clockwise exits DTMF function. Press PTT to make a call. The programmed DTMF function or radio identification will be sent upon reception.

ANI PTT-ID Operation: ANI (Automatic Numbering Identification) allows an automatic number identifier to be visible on the partner's display with each call signal. This function requires activation on both radios and programming via software.

Shortcuts Operation

Cloning Function

This function copies all data/settings from one radio ('master') to another ('slave') without a PC. Turn off both radios and connect them with a cloning cable. Turn on the 'master' radio while holding PTT. The display shows 'CLONE?'. Press PTT once. Turn on the 'slave' radio within 10 seconds. The 'slave' display shows 'PC' and its LED blinks green. The 'slave' will reboot with new data. During programming, the 'master' shows 'CLONE' and its LED blinks. Upon completion, 'END' appears. Repeat for further programming.

Menu Function

Menu Operation

To enter menu functions:

1. Press MENU to enter menu mode.
2. Turn the encoder to select the desired menu item.
3. Press ENTER to set the function. For some functions (e.g., TOT, Voice, Frequency offset), rotate the encoder to find the option.
4. Press ENTER to confirm the selected setting.
5. Press VFO/MR to exit the Menu mode.

Menu Function List

Menu Function Introduction and Setting

Emergency Alarm

There are two types of alarms:

1. Press flank key 2 and flank key 1 simultaneously: the radio enters emergency alarm mode, sending an alarm sound and ANI (if programmed). The alarm remains active until PTT is pressed.
2. Via programming software, an emergency channel can be set. To activate, briefly press # T/R to transmit on the selected emergency frequency. Press VFO/MR to exit.

Setting Reverse Frequency Function

In channel/Frequency mode, hold down # for two seconds until "T*R?" appears. When "REV" is displayed, the Reverse frequency function is enabled. Hold down # for two seconds to deactivate.

Scanning

Scanning is useful for monitoring channels before transmitting.

Select scan type

Press MENU and rotate the encoder to item 13; the screen displays "013 SCANS?". Press ENTER to enter scanning mode selection. Three types of scanning are available: TO, CO, SE.

• Time-operated scan (TO): Stops scanning when the radio detects a signal; the status remains for about 5 seconds, but the radio continues scanning even if the signal is still present.
• Carrier-operated scan (CO): The radio stops scanning upon detecting a signal and remains on that frequency until the signal is lost.
• Search Scan (SE): When the radio detects a signal, it remains on that channel and stops scanning.

Frequency or channel scan

In channel/frequency mode, press MENU and 1SCAN. The radio scans all channels from the current one. If a signal is detected, scanning stops for 8 seconds. Press PTT to transmit, and scanning resumes after 8 seconds. Press any key except PTT to end scanning; the radio returns to the channel or frequency used before scanning.

Priority channel scan

Priority scan means the radio starts scanning from the priority channel first, then scans other channels (e.g., 1-2, 1-3, 1-4 if channel 1 is priority). Procedure: In channel mode, press MENU and 2PRI. The radio scans the priority channel. If a signal is detected, scanning pauses for 8 seconds, then PTT can be used to transmit. Scanning resumes after 8 seconds. Press any key except PTT to end scanning.

VOX Sensitivity Setting

This function allows hands-free communication. Transmission is activated by speaking into the microphone without pressing PTT and stops automatically when you stop speaking. Sensitivity can be adjusted to different levels.

Procedure: In Frequency mode, press MENU and 3VOX keys. The screen displays "003 VOX?". Press ENTER; the display shows "VOX OFF". Adjust sensitivity by pressing number keys (0-9) or rotating the encoder. Press ENTER to confirm and VFO/MR to exit.

Power Setting (high or low)

Select power level: High (H) or Low (L).

In channel/frequency mode, press MENU and 4PWR. The screen displays "004 POW?". Press ENTER; the display shows "POW L" (low power) or "POW H" (high power). Turn the encoder to select the desired power level. Press ENTER to confirm and VFO/MR to exit.

Squelch Threshold Setting

This function activates Squelch for strong signals and deactivates it for weak signals. Set DCS codes for your group and turn on Squelch. Setting it too high may prevent reception of weak signals; setting it too low may result in noise. The transceiver has ten levels (0-9). Level 0 means Squelch is on. Levels 1-9 offer different noise reduction levels; higher levels mean louder Squelch.

Procedure: Press MENU and 5SQL. The screen shows "005 SQL?". Press ENTER; the display shows "SQL 5" (Factory Settings). Press any number (0-9) or rotate the encoder to select the desired level. Press ENTER to confirm and VFO/MR to exit.

Scrambler Setting

The scrambler protects communications by preventing unauthorized parties from hearing or understanding voice transmissions.

Procedure: Press MENU and 6SCR key. The display shows "006 SCRM?". Press ENTER; the display shows "ON" (scrambler on) or "OFF" (scrambler off). Turn the encoder to select on/off and press ENTER to confirm. Press VFO/MR to exit.

Backlight On/Off Setting

In channel/frequency mode, press MENU and 7LED. The screen shows "007 LED?". Press ENTER to see "ON" (backlight on). Turn the encoder to select "ON", "OFF", or "AUTO". Press ENTER to confirm and VFO/MR to exit.

Backlight Color Selection

In channel/frequency mode, press MENU and 8COLOR. The display shows "008 LIGHT?". Press ENTER and turn the encoder to select color options: "ORANGE", "PURPLE", "BLUE". Press ENTER to confirm and VFO/MR to exit.

Beep On/Off

If enabled, a beep tone sounds each time a button is pressed. In channel/frequency mode, press MENU and 9BEEP. "009 BEEP?" appears. Press ENTER; "ON" means beep on, "OFF" means beep off. Turn the encoder to choose and press ENTER to confirm. Press VFO/MR to exit.

Keypad Lock Function Setting

This function locks the keypad to prevent accidental button presses. Press MENU and turn the encoder to item 11; the screen displays "011 KEYBO?". Two types are available: Auto-lock and Manual-lock. Press ENTER; the display shows "AUTO" (keypad lock turns on automatically). Turn the encoder to select "MANUAL/AUTO", then press ENTER to confirm and VFO/MR to exit. You can also press *LOCK; the display shows "LOCK?". Hold down *LOCK for 2 seconds to lock the keypad. Press *LOCK again for 2 seconds to unlock.

Transmitting TOT Setting

The TOT (Time Out Timer) function prevents excessively long transmissions by temporarily blocking them after a preset time. The radio then forces reception mode. This unit supports OFF/30-270 seconds limit, with a warning sound when the limit is approaching.

Procedure: Press MENU and turn the encoder to item 12: "012 TOT?" is displayed. Press ENTER; the display shows "OFF" (TOT off). Turn the encoder to choose "OFF~270", then press ENTER to confirm and VFO/MR to exit.

Voice Function (only in English)

This function activates voice prompts for operations and selections. Press MENU and turn the encoder to menu item 14; the display shows "014 VOICE?". Press ENTER. Turn the encoder to choose "ENG"; press ENTER as confirmation and VFO/MR to exit.

OFFSET DIFFR

This function determines the difference (Potential Difference) between sending and receiving frequencies. In frequency mode, press MENU and turn the encoder to item 15; the display shows "015 DIFFR?". Press ENTER to set the frequency via keypad or encoder. The VHF range is 00.000-38.000(MHz) and the UHF range is 00.000-69.950(MHz). Press ENTER to confirm and VFO/MR to exit. This function is only enabled in VFO mode. Maximum offset depends on the selected frequency range.

Selecting the CTCSS tones and DCS codes

Set CTCSS tones to ignore unwanted signals from users on the same frequency. CTCSS tones enable communication with users tuned to the same channel with the same CTCSS tone. The CTCSS tones available are 50, while DCS codes are 105I and 105N.

Procedure: Press MENU and #T-R keys; the display shows "016 C-CDC?". Press ENTER and turn the encoder to select desired CTCSS (OFF-254.1). Press * to switch CTCSS and DCS. The DCS range is OFF-D754N. Press ENTER to confirm and VFO/MR to exit.

Setting the receiver CTCSS/DCS (R-CDC)

Press MENU and turn the encoder to select "017 R-CDC?". Press ENTER and turn the encoder to select desired CTCSS (OFF-254.1). Press * to switch CTCSS and DCS. The DCS range is OFF-D754N. Press ENTER to confirm and VFO/MR to exit.

Setting the transmitting CTCSS/DCS (T-CDC)

Press MENU and turn the encoder to select "018 T-CDC?". Press ENTER and turn the encoder to select desired CTCSS (OFF-254.1). Press * to switch CTCSS and DCS. The DCS range is OFF-D754N. Press ENTER to confirm and VFO/MR to exit.

Note: When setting DCS codes, press [#] to select OFF-D754I (Inverted).

+/- Frequency shift direction (for communications through repeaters)

This function is only enabled in VFO (frequency) mode. In frequency mode, press MENU and *. The display shows "019 S-D?". Press ENTER; the display shows "S-D 0" (same frequency). Turn the encoder to select "S-D+" or "S-D-". Press ENTER to confirm and VFO/MR to exit.

Selecting the Frequency Step

This function is only enabled in VFO (frequency) mode. In frequency mode, press MENU and turn the encoder to item 20: "020 STEP?" will be displayed. Press ENTER and turn the encoder to select the frequency stepping: 5k, 10k, 6.25k, 12.5k, 25k. Press ENTER to confirm and VFO/MR to exit.

Wide/Narrow Band

In channel/frequency mode, press MENU and turn the encoder to item 21: "021 N/W?" will be displayed. Press ENTER and the display shows "WIDE" (wide band). Turn the encoder to select "NARROW/WIDE" and confirm by pressing ENTER. Press VFO/MR to exit.

Roger Beep

In channel/frequency mode, press MENU and turn the encoder to item 22: "022 ROGER?" will be displayed. Press ENTER; the display shows "ROGER" (roger beep off). Turn the encoder to select "OFF /ON"; press ENTER to confirm and VFO/MR to exit.

To Save/delete a channel

• Saving a channel: In frequency mode, select the desired frequency or other items (like CTCSS, DCS, potential difference, frequency difference direction). Press MENU and then VFO/MR keys. The channel to store blinks on the left bottom of the display. Turn the encoder or select the number (from 1 to 128). Press VFO/MR key to complete channel storage and return to frequency mode.
• Deleting a channel: Delete one programmed channel. Turn off the radio. Turn it on again while keeping pressed the VFO/MR key. "001 DEL?" will be displayed. Turn the encoder to select the channel number (from 1 to 128). Press ENTER; the display shows: "001 YES?". Press ENTER to confirm deletion, or VFO/MR to cancel.
• Reset: Delete parameters of frequency mode (Reset VFO). Turn on the radio while keeping pressed the MENU key. The display will show "RESET?". Press ENTER; the LCD will show "VFO?". Press ENTER to confirm; all frequency mode settings will be deleted.
• Delete all contents of frequency mode and channel mode (Reset FULL): Turn on the radio while keeping pressed the MENU key. The display will show "RESET?". Press ENTER; the LCD will show "VFO?". Rotate the encoder and choose "FULL?", then press ENTER to confirm. All channel and frequency mode settings will be deleted.

CTCSS Tone Table: 50 Tones

DCS: Digital Code 105 Tones

Table of Solutions

Technical Specification

General

Transmitter

Receiver

Specifications are subject to change without notice.

Contact and Legal Information

Prodotto o importato da:

CTE INTERNATIONAL s.r.l.
Via. R.Sevardi 7- 42124 Reggio Emilia Italia
www.cte.it - www.midlandradio.eu

L'uso di questo apparato può essere soggetto a restrizioni nazionali. Prima dell'uso leggere attentamen- te le istruzioni. Se il prodotto contiene batterie: non gettare nel fuoco, non disperdere nell'ambiente dopo l'uso, usare gli appositi contenitori per la raccolta.

Produced or imported by:

CTE INTERNATIONAL s.r.l.
Via. R.Sevardi 7 42124 Mancasale Reggio Emilia Italy

Imported by:

ALAN - NEVADA UK
Unit 1 Fitzherbert Spur Farlington Portsmouth Hants.
P06 1TT - United Kingdom
www.nevada.co.uk

The use of this transceiver can be subject to national restrictions. Read the instructions carefully before installation and use. If the product contains batteries: do not throw the battery into fire. To disperse after use, throw into the appropriate containers.

Importado por:

ALAN COMMUNICATIONS, SA
C/Cobalt, 48 - 08940 Cornellà de Llobregat Barcelona España
Tel: +34 902 384878 Fax: +34 933 779155
www.midland.es

El uso de este equipo puede estar sujeto a la obtención de la correspondiente autorización administrativa. Lea atentamente las instrucciones antes de usar el equipo. si el producto contiene pilas o baterías no las tire al fuego ni las disperse en el ambiente después de su uso, utilice los contenedores apropiados para su reciclaje.

Vertrieb durch:

ALAN ELECTRONICS GmbH
Daimlerstraße 1K - D-63303 Dreieich Deutschland
www.alan-electronics.de

Die Benutzung dieses Handfunkgerätes ist von den landesspezifischen Bestimmungen abhängig. Vor Benutzung Bedienungsanleitung beachten. Bei Verwendung von Batterien beachten Sie bitte die Umweltbestimmungen. Batterien niemals ins offene Feuer werfen, und nur in dafür vorgesehene Sammelbehälter entsorgen.

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