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What are the key safety warnings and RF exposure guidelines for the TIDRADIO TD-H3?

Your TIDRADIO TD-H3 wireless handheld portable transceiver contains a low power transmitter. When the talk button is pushed, it sends out radio frequency (RF) signals. The device is authorized to operate at a duty factor not to exceed 50%.

To ensure safe operation, please adhere to the following guidelines:

• Use only the supplied or an approved antenna. Unauthorized antennas, modifications, or attachments could impair call quality, damage the radio, or result in violation of FCC regulations.

• Do not use the radio with a damaged antenna. If a damaged antenna comes into contact with the skin, a minor burn may result. Please contact your local dealer for a replacement antenna.

• Never allow children to operate the radio without adult supervision.

• For hand-held (held-to-face) operation, the radio should be held 1 inch from the user’s face to comply with FCC RF exposure requirements.

• For body-worn operation, this device was evaluated with the supplied belt-clip accessory. All necessary accessories are included. Third-party accessories (unless approved by the manufacturer) should be avoided as they might not comply with FCC RF exposure guidelines.


What should I do if my TIDRADIO TD-H3 causes harmful interference to other devices?

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning it off and on, you are encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna.

– Increase the separation between the equipment and receiver.

– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician for help.

Please note that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.


What are the FCC licensing requirements for the TIDRADIO TD-H3?

The TIDRADIO TD-H3 complies with Part 97 and 15 of the Federal Communications Commission (FCC) Rules. The radio operates on radio frequencies that are regulated by the FCC. To transmit on these frequencies, you are required to have a license issued by the FCC. Before filling out your application, you must decide which frequency you can operate on.

NOTICE: Use of this radio outside the country where it was intended to be distributed is subject to government regulations and may be prohibited.


How should I maintain and care for my TIDRADIO TD-H3?

Your TIDRADIO TD-H3 is an electronic product of exact design and should be treated with care. The suggestions below will help you enjoy this product for many years:

• Do not attempt to open the radio for any reason! The radio’s precision mechanics and electronics require experience and specialized equipment. Unauthorized opening of the transceiver will void the warranty.

• 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 an antenna.


How can I get the maximum range from my TIDRADIO TD-H3?

The TIDRADIO TD-H3 is designed to give you maximum range under optimum conditions.

• Maximum Range: Little to No sight Obstruction.

• Medium Range: Partial Obstruction to line of sight.

• Short Range: Major Obstruction to Line of Sight.

Optimum Conditions are:

• Over water

• Open rural areas without obstructions

• Flat areas where you can see the other person

To ensure you get maximum range:

• Be sure to use fresh or fully charged batteries – low batteries will cause low power conditions.

• Be sure to set your radio to use Hi power.


How do I charge the battery pack for the TIDRADIO TD-H3?

The Li-ion battery pack is not charged at the factory; please charge it before use. For the first time, or after extended storage (more than 2 months), it may require two or three full charge/discharge cycles to reach its best performance.

Please use the specified charger provided. To charge the battery:

a. Plug the AC adaptor into the AC outlet, and then plug the cable of the AC adaptor into the DC jack located on the back of the charger. The indicator light blinks orange and is then ready to charge a battery.

b. Plug the battery or the radio into the charger. Make sure the battery terminals are in good contact with the charging terminals. The indicator light turns to red, and charging begins.

c. It takes approximately 2-5 hours to fully charge the battery. When the lamp lights green, the charging is completed. Remove the battery or the radio unit with its battery from the socket.

NOTE: When charging a radio (with battery) the indicating lamp will not turn green to show the fully charged status if the radio is powered on. Only when the radio is switched off will the lamp indicate normal operation. The radio consumes energy when it is on, and the charger cannot detect the correct battery voltage when the battery has been fully charged. The charger will charge the battery in constant voltage mode and fail to indicate correctly when the battery has been fully charged.


What do the LED indicators on the charger for the TIDRADIO TD-H3 mean?

STATUS LED
No Battery Green and red alternately flashing
Charge Normally Red
Fully Charged Green

NOTE: Trouble means the battery is too warm, the battery is short-circuited, or the charger is short-circuited.


What precautions should I take with the Li-ion battery for the TIDRADIO TD-H3?

a. Do not short the battery terminals or throw the battery into a fire. Never attempt to remove the casing from the battery pack.

b. The ambient temperature should be between 5°C-40°C (40°F – 105°F) while charging the battery. Charging outside this range may not fully charge the battery.

c. Please turn off the radio before inserting it into the charger. It may otherwise interfere with correct charging.

d. To avoid interfering with the charging cycle, please do not cut off the power or remove the battery during charging until the green light is on.

e. Do not recharge the battery pack if it is fully charged. This may shorten the life of the battery pack or damage it.

f. Do not charge the battery or the radio if it is damp. Dry it before charging to avoid damage.

WARNING! When keys, ornamental chain or other electric metals contact the battery terminal, the battery may become damaged or injure a person. If the battery terminals are short-circuited it will generate a lot of heat. Take care when carrying and using the battery. Remember to put the battery or radio into an insulated container. Do not put it into a metal container.


How should I store the battery for the TIDRADIO TD-H3?

a. If the battery needs to be stored, keep it in a status of 80% discharged.

b. It should be kept in a low temperature and dry environment.

c. Keep it away from hot places and direct sunlight.

• Do not short circuit the battery terminals.

• Never attempt to remove the casing from the battery pack.

• Never store the battery in unsafe surroundings, as a short may cause an explosion.

• Do not put the battery in a hot environment or throw it into a fire, as it may cause an explosion.


How do I install the accessories on my TIDRADIO TD-H3, such as the belt clip and battery pack?

Installing the belt clip:

a. At the back of the radio there are two parallel screws mounted above the battery. Remove these and thread them through the holes on the belt clip as you screw them back into the radio body.

b. To remove the Belt Clip: Unscrew counter-clockwise to remove the belt clip.

Installing the battery pack:

Before attaching or removing the battery, make sure your radio is turned off by turning the power/volume knob all the way counter-clockwise.

a. Make sure the battery is aligned in parallel with the radio body, with the lower edge of the battery about 1-2cm below the edge of the radio.

b. Once aligned with the guide-rails, slide the battery upward until you hear a click as the battery locks in place.

To remove the battery pack, press the battery release below the battery pack.

Installing the Additional Speaker/Microphone (Optional):

Pry open the rubber MIC-Headset jack cover and then insert the Speaker / Microphone plug into the double jack.


What are the buttons and controls of the TIDRADIO TD-H3 radio?

1. Antenna

2. Power Switch / Volume control: Rotate to switch on/off the radio and adjust the volume.

3. 1.44 TFF Color Screen

4. VFO/MR/Exit: Channel Mode/Frequency Mode.

5. Menu/ BL Key: Long Press to activate/Reset Bluetooth Programming. Short Press to enter Menu interface.

6. A/B key: Press to switch A/B band.

7. Speaker

8. Microphone

9. Keypad: In channel mode, enter the channel number; in frequency mode, enter the working frequency; in menu mode, directly enter the menu items.

10. PTT A Key: Transmit key, hold the key to speak at Channel A, release the key after speaking, and receive incoming calls.

11. PTT B Key: Transmit key, hold the key to speak at Channel B, release the key after speaking, and receive incoming calls.

12. LAMP / Customized Key: Default is Flashlight, but can be customized by Programming software for functions like FM radio, TONE, alarm, NOAA.

13. Kenwood Port/ Type-C programming port

14. Flashlight

15. Indicator: Red when transmitting; Green when receiving.

16. Battery latch


What do the icons on the LCD display of the TIDRADIO TD-H3 mean?

No. Icon Description
1 Signal Bars Signal strength indication
H High transmitting power (longest communication distance and largest power consumption).
2 L Low transmitting power (most power efficient and relatively close distance).
M Mid transmitting power
3 Beep
4 DCS This symbol indicates that the current tone is DCS.
CT This symbol indicates that the current tone is CTCSS.
5 + The difference between the receive and transmit frequencies of a radio channel is + offset.
6 The difference between the receive and transmit frequencies of a radio channel is – offset.
7 S The presence of this symbol indicates that the dual-band watch is on. In the dual watch state, the intercom can simultaneously monitor the two frequency bands displayed on the screen.
8 Key Icon The symbol will appear when the keyboard is locked. Hold [#] to unlock.
9 VOX This symbol indicates that the VOX function is activated and the intercom will start transmitting when the sound pressure level of the microphone reaches the set value.
10 R Reverse the receive and transmit frequencies in frequency mode/channel mode.
11 N This symbol appears when the channel is operating in narrowband mode.
12 Battery Icon Current battery power remaining.
• Full battery charge.
• Battery Remains.
• When the battery is about to run out, the outer frame of this icon flashes to show that the radio is unable to transmit at this time.
13/17 Frequency Working Frequency on A/B band.
14/15 Arrow A/B band indicator.
16/18 Channel No. The channel number of the A/B band in channel mode.

What do the status LED lights on the TIDRADIO TD-H3 indicate?

LED Indicator Radio Status
Constant Red Transmitting.
Constant Green Receiving.

How do I use the keypad on the TIDRADIO TD-H3?

(MENU) key: It is used for activating the MENU, choosing each MENU selection, and confirming the parameter.

Up Arrow key: Press it for more than 2 seconds, the channel and frequency will move upwards rapidly; in SCAN mode, press this control to move the scanning upwards.

Down Arrow key: Keep it pressed for more than 2 seconds, the channel and frequency will move downwards rapidly; in SCAN mode, press this control to move the scanning downwards.

Numeric keypad: With these keys, you can input information or your selections on the radio. In TX mode, push the number keys to send a corresponding DTMF code.

* DTMF/Key: A short momentary press of the key enters the DTMF interface. If you press this button for more than 2 seconds, you will lock/unlock the keypad.


How do I perform basic operations on the TIDRADIO TD-H3, like powering on/off and adjusting volume?

Turning the unit on:

To turn the unit on, simply rotate the volume/power knob clockwise until you hear a “click”. If your radio powers on correctly, there should be an audible double beep after about one second and the display will show a message or flash the LCD. Then it will display a frequency or channel. If the Voice prompt is enabled, the voice will announce “frequency mode” or “channel mode”.

Turning the unit off:

Turn the volume/power knob counter-clockwise all the way until you hear a “click”. The unit is now off.

Adjusting the volume:

To turn up the volume, turn the volume/power knob clockwise. To turn the volume down, turn the volume/power knob counter-clockwise. Be careful not to turn it too far, as you may inadvertently turn your radio off.


How do I select a channel on the TIDRADIO TD-H3?

The TIDRADIO TD-H3 has two modes of operation: Frequency (VFO) mode, and Channel or Memory (MR) mode. In standby mode, press the VFO/MR key to switch between these modes.

Frequency (VFO) mode is very handy for experimentation out in the field and is also used for programming channels into memory.

Channel (MR) mode is more practical for everyday use. Once you have channels programmed, you can use the UP/DOWN arrow keys or the encoder to navigate between channels. In MR mode, the channel number will be displayed on the right.


How do I make and receive a call with the TIDRADIO TD-H3?

Channel mode call: After selecting a channel, hold down the [PTT] key to initiate a call to the current channel. Speak into the microphone with a normal tone. The red LED will be on.

Frequency mode call: From the off state, press the [MENU] key to enter the radio menu, switch to frequency mode, enter an allowed frequency, then press the [PTT] key to call the current channel. Speak into the microphone with a normal tone. The red LED will be on.

Receive a call: When you release the [PTT] key, you can answer a call without any action. When receiving a call, the green LED is on.

NOTE: To ensure the best reception volume, keep the distance between the microphone and your mouth from 2.5 cm to 5 cm during transmission.


How do I use the Frequency (VFO) mode on the TIDRADIO TD-H3?

In Frequency (VFO) mode you can navigate up and down the band by using the UP/DOWN keys. Each press will increment or decrement your frequency according to the frequency step you’ve set for your transceiver. You can also input frequencies directly on your numeric keypad with kilohertz accuracy.

Example: Entering the frequency 432.56250 MHz on display A

a. In standby mode, switch to the frequency (VFO) mode.

b. Enter [4][3][2][5][6][2][5][0] on the numeric keypad.

WARNING! Just because you can program in a channel does not mean you’re automatically authorized to use that frequency. Transmitting on frequencies you’re not authorized to operate on is illegal, and in most jurisdictions a serious offense. However, it is legal in most jurisdictions to listen. Contact your local regulatory body for further information on what laws, rules and regulations apply to your area.


How do I use the scanning functions on the TIDRADIO TD-H3?

Frequency Scanning:

a. In frequency mode, press the [SCAN] key for more than 2 seconds. The radio will start scanning the frequency according to the set frequency step.

b. Press the [EXIT] key to stop the scanning.

Channel Scanning:

a. In channels mode, press the [SCAN] key for more than 2 seconds. The radio will start scanning according to the channel you set.

b. You can change the scanning direction with the UP/DOWN keys.

c. Press the EXIT key to stop scanning.

CTCSS Scanning:

This function allows scanning the frequencies with a CTCSS tone enabled.

a. In standby mode, press [MENU] [2][8].

b. Press [MENU] and the scan of CTCSS tones will start.

DCS Scanning:

This function allows scanning the frequencies with a DCS code enabled.

a. In standby mode, press [MENU][2][9].

b. Press [MENU] and the scan of DCS codes will start.


How do I use the other advanced features on the TIDRADIO TD-H3, like the keypad lock, FM radio, and flashlight?

Keypad lock:

This function locks the keypad to prevent accidental key presses. To lock or unlock the keypad, press the [*] key for more than 2 seconds.

FM Radio (FM):

The frequency range to listen to the radio is 76-108MHz.

A. In frequency mode, Press [Menu] then Press the Button [8].

B. Repeat the Process A to exit FM radio.

Note: While you are listening to the radio, if the frequency or channel of A / B receives a signal, it will automatically switch to that frequency or channel mode for normal transmitting and receiving. When the signal disappears the radio will automatically switch back to FM radio mode.

Built-in LED Flashlight:

Press the flashlight button (LAMP) to turn and keep the light on. Press the flashlight button again to turn the light off.


How do I send a repeater tone with the TIDRADIO TD-H3?

Press [PTT] + [LAMP/Monitor] to send a 1750Hz repeater tone. This function is useful for communications through repeaters. If you have the keypad lock enabled on your radio, you can still send a 1750Hz tone the regular way without having to unlock your radio.


How do I manually program a channel with a CTCSS tone into the memory of the TIDRADIO TD-H3?

This example shows how to program a new memory in Channel 31 with RX = 432.55000 MHz and a TX CTCSS tone of 123.0.

A. Press the [EXIT] button to switch between menus if needed.

B. Press and hold the [VFO/MR] key to set the radio to VFO mode. The VFO icon will be displayed on the right.

C. Enter the RX frequency (Ex. 43255000).

D. First, delete any prior data in the channel you wish to program. Press [MENU] [2][6]. Enter the desired channel (Ex. 31) and press [MENU].

E. To set the RX encode tone, press [MENU] [1][1], then use the UP/DOWN keys to select 123.0. Press [MENU] to confirm, then [EXIT].

F. To save the channel, press [MENU] [2][5]. Press [MENU] again, enter the desired channel number (Ex. 31), press [MENU] to confirm. The display will show “RX has been added”. Press [EXIT].

G. Press the [VFO/MR] key to return to the MR mode. The channel number will reappear.


How do I program a channel memory by scanning for a frequency on the TIDRADIO TD-H3?

This example shows how to scan for a frequency and save it to Channel 31 with an RX DCS code of D023N.

A. Press the [EXIT] button to switch between menus.

B. Press and hold the [MENU] key to set the radio to VFO mode. The VFO icon will be displayed on the right.

C. To enter the scan range menu, press [MENU] [1][7] [MENU].

D. Press and hold the [3 SCAN] key to start frequency scanning. The scan will stop temporarily when a frequency is found. Press the [PTT] key to stop scanning and confirm the required frequency.

E. To set the RX DCS tone, press [MENU] [1][0], then use the UP/DOWN keys to select D023N. Press [MENU] and then [EXIT].

G. To delete any prior data in the channel, press [MENU] [2][6]. Enter channel 31 and press [MENU].

H. To save the channel, press [MENU] [2][5]. Press [MENU], enter channel 31, and press [MENU]. The display will show “Channel has been added”. Press [EXIT].

I. Press and hold the [MENU] key to return to the MR mode, and the channel number will reappear.


How do I navigate the menu system on the TIDRADIO TD-H3?

Note: In channel mode, the setting of features like CTCSS/DCS tones, wide/narrow bandwidth, PTT-ID, Busy channel lock out, and channel name edit is not possible.

Using the menu with arrow keys:

A. Press the [MENU] key to enter the menu.

B. Use the UP/DOWN keys to navigate between menu items.

C. Once you find the desired menu item, press [MENU] again to select that menu item.

D. Use the UP/DOWN keys to select the desired parameter.

E. When you’ve selected the parameter you want to set:

a). To confirm your selection, press [MENU] and it will save your setting and bring you back to the main menu.

b). To cancel your changes, press [EXIT] and it will reset that menu item and bring you out of the menu entirely.

F. To exit out of the menu at any time, press the [EXIT] key.

Using short-cuts:

Every menu item has a numerical value associated with it which can be used for direct access.

A. Press the [MENU] key to enter the menu.

B. Use the numerical keypad to enter the number of the menu item.

C. To enter the menu item, press the [MENU] key.

D. For entering the desired parameter you can either use the arrow keys or use the numerical keypad if a number is associated with the parameter.


How do I program the TIDRADIO TD-H3 using Bluetooth?

Step 1: Download Odmaster App

Download the “Odmaster” App from the Google Play Store or the iOS App Store.

Step 2: Register an account and log in

Open the app and register an account. It is recommended to register by email or log in directly with Facebook.

Step 3: Connect Bluetooth and radio in the app

1. Turn on Bluetooth on your mobile phone.

2. Open the Odmaster App.

3. In the app, select “Connect Bluetooth”.

4. The app will search for devices. Select “TIDRADIO KIT” when it appears to connect.

Tips: After the phone is turned on Bluetooth, do not pair the device with your phone in your phone’s native BT settings. Just make sure that BT is enabled and then open the Odmaster App and pair with the programmer within the App.

Step 4: Select model and read from radio

1. Once connected, select your radio model in the app.

2. Select “Read” to read the current configuration from your connected TIDRADIO TD-H3.

3. You can now program settings in the app and write them to the radio.

How do I navigate the menus on my Tidradio device?

To navigate and make selections in the menu on your Tidradio device, follow these general procedures:

b). Use the numerical keypad to enter the numerical short-cut code for a specific menu item.

a). To confirm your selection, press [MENU]. This will save your setting and bring you back to the main menu.

b). To cancel your changes, press [EXIT]. This will reset that menu item and bring you out of the menu entirely.

F. To exit out of the menu at any time, press the [EXIT] key.

G. All further examples and procedures in this manual will use the numerical menu short-cuts.


How do I set the Wide/Narrow bandwidth on my Tidradio device (MENU No.0)?

This function is used to set the working bandwidth of the radio. You can choose between wide or narrow bandwidth.

Wide: 25KHz

Narrow: 12.5KHz


How do I adjust the squelch level on my Tidradio device (MENU No.1)?

This function allows you to adjust the squelch in 10 different levels:

• Level 0: opened squelch. With this setting, the radio will detect all signals, including the weakest ones, but may also receive background noise or undesired signals.

• Levels 1-9: level 1 is the lowest squelch level, and level 9 is the highest squelch level.

If the squelch is set to the highest level, the radio will receive only the strongest signals.


How do I change the TX Power on my Tidradio device (MENU No.2)?

This function lets you select between three different power output levels (Low/High) according to your usage scenario.


How do I use the Power Save feature on my Tidradio device (MENU No.3)?

The power save feature enables a reduction in battery consumption when the radio is in standby.

You have 6 selections available: Off/1:1/1:2/1:3/1:4/1:8. For example, 1:2 means 1 second of working and 2 seconds of battery saving.

NOTE: The higher the number, the longer the battery lasts. However, a higher number increases the RX sleep cycle, and you may miss the first few syllables before the RX opens.


How do I set the Step Frequency on my Tidradio device (MENU No.4)?

This function lets you select the desired frequency step. The selectable steps are: 2.5/5.0/6.25/10.0/12.5/20.0/25.0/50.0 KHz.

Note: In channel mode, this function cannot be modified.


How do I adjust the display backlight on my Tidradio device (MENU No.5)?

With this function, you can adjust the auto-off time of the display backlight. The available options are Bright (always on), and 1-30 seconds.

When the option is set to Bright, the backlight is always on, which will affect the battery standby time. It is suggested to set this to 4-5 seconds.


How do I enable or disable the Keypad Beep on my Tidradio device (MENU No.6)?

When this function is enabled (set to ON), every time a button is pressed, you will hear a beep tone. Set to OFF to disable it.


How do I use the VOX function on my Tidradio device (MENU No.7)?

This function allows for hands-free conversations. Just speak in the direction of the microphone, and the communication will be automatically activated.

You can choose amongst 6 levels: Off, and 1-5. Level 1 is the highest sensitivity, and level 5 is the lowest. If this option is set to Off, the VOX function is turned off.

Note: The higher the level number, the higher the microphone sensitivity. The VOX function cannot be modified in SCAN and FM radio mode.


What is the Time-Out-Timer (TOT) function and how do I use it on my Tidradio device (MENU No.8)?

The TOT function is used to prevent excessively long transmissions and limits the transmission time. TOT temporarily stops the transmission if the radio has been used beyond the max pre-set time (e.g., 15s, 30s, 45s, etc.).

Note: If this option is set to OFF, you can press and hold the PTT key to keep transmitting indefinitely.


How do I use the Dual Watch Operation (D.Wait) on my Tidradio device (MENU No.9)?

When this function is activated, you can receive the frequency of channel A and channel B at the same time. If a signal is detected, the pointer will blink on the corresponding channel or frequency.

Note: In Dual Watch operation mode, you can change the parameter of the AB channel or frequency freely.


How do I set up Receiving DCS (Rx DCS) codes on my Tidradio device (MENU No.10)?

DCS codes can be added to channels to create a personal channel, enabling the radio to communicate with users on the same channel with the same DCS code. The options are:

• Off: Turns the function off.

• D023N-D754N (Normal DCS)

• D023I-D754I (Inverse DCS)

Note: There are 208 groups of normal and inverse DCS codes. This function cannot be amended in channel mode.


How do I set up Receiving CTCSS (Rx CTCSS) tones on my Tidradio device (MENU No.11)?

Like DCS codes, CTCSS codes can be added to channels for creating new private channels.

Note: There are 50 groups of CTCSS tones. In channel mode, the CTCSS tones cannot be changed.


How do I set up Transmitting DCS (Tx DCS) codes on my Tidradio device (MENU No.12)?

In this Menu, you activate DCS codes in transmit mode. You can choose between normal R-DCS (D023N-D754N) and inverted R-DCS (D023I-D754I).

Note: The groups of DCS codes are 208. DCS codes cannot be changed in channel mode.


How do I set up Transmitting CTCSS (Tx CTCSS) tones on my Tidradio device (MENU No.13)?

In this Menu, you can set a CTCSS tone in transmit mode. You can choose: Off or CTCSS (67.0 to 254.1 Hz).

Note: There are 50 groups of CTCSS tones. In channel mode, the CTCSS tones cannot be changed.


How do I activate the Voice Prompts function on my Tidradio device (MENU No.14)?

With this function, you activate a voice that informs you about any operation or selection you are making.


What is the TX-SEL function on my Tidradio device (MENU No.15)?

This function determines which channel to transmit on.

MAIN: Transmit on the MAIN Channel.

BUSY: Transmit on the MOST RECENT receiving channel.


How do I add a channel to the scan group on my Tidradio device (MENU No.16)?

In channel mode, to scan the current channel, it must be added to the scan group.

• On: Turn on the scan function of the current channel.

• Off: Do not scan the current channel.


How do I set the SCAN Resume Mode on my Tidradio device (MENU No.17)?

Thanks to this function, the radio can SCAN in frequency or channel mode. You can choose amongst three options:

• Time-operated SCAN: Whenever a signal is detected, the radio will suspend the SCAN for 5 seconds, and then will continue to SCAN even if the signal is still present.

• Carrier-operated SCAN: Whenever a signal is detected, the radio will stop scanning. It will resume to SCAN once the signal disappears.

• Search SCAN: The radio will stop scanning once a signal is detected.


How do I change the display mode for Channel A (MDF-A) on my Tidradio device (MENU No.19)?

This function is used to set the display mode of channel A. The display modes are:

• Frequency: Displays Frequency + channel No.

• NAME: Displays Channel name.

Note: Channel name mode must be set by the programming software. Up to three numbers or characters can be edited.


How do I change the display mode for Channel B (MDF-B) on my Tidradio device (MENU No.20)?

This function is used to set the display mode of channel B. The display modes are:

• Frequency: Displays Frequency + channel No.

• NAME: Displays Channel name.

Note: Channel name mode must be set by the programming software. Up to three numbers or characters can be edited.


How does the Busy Channel Lock (Busy Lockout) function work on my Tidradio device (MENU No.21)?

When this function is on, it may prevent other radios’ interference. If the selected channel is being used by other radios, when you press the PTT key, your radio cannot transmit. Release the PTT and transmit as soon as the frequency is no longer busy.


How do I use the Auto Keypad Lock (AUTO LK) feature on my Tidradio device (MENU No.22)?

When this feature is activated, the keypad will be automatically locked after 15s; this prevents accidental pressure of any keys. The keypad lock can be manually activated/deactivated by keeping the [*] key pressed.


How do I set the frequency offset direction on my Tidradio device (MENU No.23)?

Using this function, you can set the direction of the frequency offset in receive (rx) and transmit (tx). You have the following options:

• Plus: Positive offset; TX will be shifted higher in frequency than RX.

• Minus: Negative offset; TX will be shifted lower in frequency than RX.

• None: No offset; TX = RX (simplex).

Note: You should set different frequency deviation according to the repeaters selected. This function is not enabled in channel mode.


How do I set the frequency offset (deviation) on my Tidradio device (MENU No.24)?

In this MENU, you can set the deviation between transmit (tx) and receive (rx). The frequency offset of this radio is 00.00000-69.99750MHz.


How do I store a channel on my Tidradio device (MENU No.25)?

When the radio is in frequency working mode or standby mode, input the desired frequency or parameters directly.

NOTES: If you want to set CTCSS tones, DCS codes, or the frequency offset, you must do it before storing the channel. The channels already stored are displayed as CH-XXX (“CH” and channel number), and other channels only display channel numbers.


How do I delete a channel on my Tidradio device (MENU No.26)?

In this menu, you can delete a channel of the radio. This menu is used to delete the programmed information from the specified channel (1 through 199) so that it can either be programmed again or be left empty.


How do I use the Alarm Mode on my Tidradio device (MENU No.27)?

This function can set the tone alarm/site alarm of the radio. Provided the LAMP Key is customized to the [SOS] Key, keep the [SOS] key pressed for 3 seconds to start the alarm tone.

The following three options can be selected:

• On Site: the sending radio emits an alarm tone.

• TX Alarm: the sending and receiving radios both emit the alarm tone.


How do I scan for frequencies with a CTCSS tone on my Tidradio device (MENU No.28)?

The function allows scanning the frequencies with CTCSS tone enabled. It provides an automatic stop after receiving the CTCSS signal.


How do I scan for frequencies with a DCS code on my Tidradio device (MENU No.29)?

This function allows scanning the frequencies with DCS code enabled. It provides an automatic stop after receiving the DCS signal.


What is the Squelch Tail Elimination (TAIL) function on my Tidradio device (MENU No.30)?

This function is used to eliminate squelch tail noise between handhelds that are communicating directly (no repeater). Reception of a 55 Hz or 134.4 Hz tone burst mutes the audio long enough to prevent hearing any squelch tail noise.


How do I enable the Roger Beep on my Tidradio device (MENU No.31)?

When the PTT is released, the radio will beep to confirm to other users that you have finished your transmission and that they can start talking. This function can be turned On or Off.


How do I send a Repeater Tone with my Tidradio device (MENU No.32)?

With this function, you can select a 1000Hz, 1450Hz, 1750Hz, or 2100Hz repeater tone. To send out a repeater tone, hold down the [PTT] + [LAMP] key.

If you have the keypad lock enabled on your radio, you can still send a 1750Hz tone the regular way without having to unlock your radio.


How do I change the language on my Tidradio device (MENU No.33)?

With this function, you can select the language of the LCD display and operation prompt. The available option is English.


How do I activate the Frequency Hopping System on my Tidradio device (MENU No.34)?

With this function, you can activate the frequency hopping system to improve the anti-interference ability of the radio. It can be turned On or Off.


How do I reset my Tidradio device (MENU No.35)?

With this function, you can reset the transceiver to the factory-programmed settings and parameters. After that, you can set the desired functions. There are three types of reset:

• VFO: Frequency Reset

• CH: Channel Reset

• ALL: Frequency and channel Reset

Note: This resets the radio to factory defaults, with some exceptions.


What is the Dual Band Single Display (SYNC) function on my Tidradio device (MENU No.36)?

The radio is dual-band, dual-display, and the screen can display A/B frequency bands at the same time. The SYNC function allows it to be set to a dual-band single-screen display.

• On: Turn on the SYNC function. The channel nickname, frequency, and channel number will be displayed at the same time.

• Off: Turn off the SYNC function. The radio will be in a dual-segment dual display mode, showing the main frequency and sub-frequency.


How do I configure the PTT-ID function on my Tidradio device (MENU No.37)?

With this function, you can decide when to send the ANI-ID code in transmit mode. You can choose amongst 4 possibilities:

• Off: press PTT to turn it off. No ID is sent.

• BOT: the code is sent when you press the PTT (at the beginning of transmission).

• EOT: the code is sent when the PTT is released (at the end of transmission).

• BOTH: the code is sent when you press and release the PTT.

Note: select ‘OFF’ when using in case of affecting the radio.


How do I control DTMF Side Tones (DTMFST) on my Tidradio device (MENU No.38)?

This function determines when DTMF Side Tones can be heard from the transceiver speaker. You can choose amongst two options:

• Off: No DTMF Side Tones are heard.

• On: DTMF Side Tones are heard.


How do I set my ANI-ID on my Tidradio device (MENU No.39)?

With this function, you can set your ID-code. It can be programmed by the proper programming software. You can edit up to 5 digits. The menu on the radio only displays the ANI code that has been set by software and cannot be used to change it.


How do I use the Squelch Tail Elimination of Repeater (RP-STE) function on my Tidradio device (MENU No.40)?

This function is used when the radio operates through a repeater. When the PTT is released, the repeater will emit an end transmission tone to confirm it is working. The available settings are Off, and a delay time of 1 to 10.

Note: Please disable this function in normal use, lest it affect your normal conversation.


How do I delay the squelch tail of a repeater (RPT-RL) with my Tidradio device (MENU No.41)?

With this function, you have the confirmation that the repeater has transferred the signal. You can choose amongst Off or a delay time of 1 to 10 to set the delay time. This delays the Tail Tone of the Repeater (X100 milliseconds).


How do I check the software version on my Tidradio device (MENU No.42)?

This Function is to display the software version, to know whether your radio needs to update or not.


How do I customize the Breath LED on my Tidradio device (MENU No.43)?

This feature allows users to customize the frequency at which the LED light flashes during standby mode. This function can be turned ON or OFF.


How can I personalize the display screen (PONMSG) on my Tidradio device (MENU No.44)?

This Function allows you to set and personalize your own displays on the screen. The options are:

• OFF

• MSG

• ICON

It can be modified by programming software.


How do I adjust the microphone gain on my Tidradio device (MENU No.45)?

Adjust the microphone gain according to your specific needs. The microphone gain can be adjusted within a range of 0 to 9.


How does the Scramble function work on my Tidradio device (MENU No.46)?

With this function, only a receiver with the same decryption program can obtain clear voice. To communicate with each other, both radios must have the same scramble setting enabled. If the scrambling is different, the machine can receive signals, but cannot hear clearly what is said. This function can be turned On or Off.


How do I use the Decode function (Dec.code) to identify a nearby transmission’s frequency and codes on my Tidradio device (MENU No.47)?

With this function, you can figure out the frequency and CTCSS/DCS of a nearby transmission. Follow these steps:

• Step 1: Turn on the Dec.code function (set to ON).

• Step 2: Long press the number 1 key.

• Step 3: The monitor will show the frequency and DCS/CTCSS when somebody transmits.


How do I use the AM_BAND function to listen to aviation intercom on my Tidradio device (MENU No.48)?

Enter the receiving frequency. If the local aviation frequency is not clear, the scanning function can scan the 108-136 MHz full frequency band.

• Menu→48→AM ON: set the channel modulation method to AM to listen to aviation intercom.

• Menu→48→AM OFF: set the channel modulation method to FM.

Note: Menu 48 settings are only valid for the 108-136 MHz frequency band.


What is the DCD (DTMF Decoding Enable) function on my Tidradio device (MENU No.49)?

This is the DTMF decoding enable signal function (ON/OFF).

ON: When the code word received is a DTMF personal ID code, the decoding is successful, and you can communicate with the other party within the resetting time.

OFF: The function is disabled.

NOTE: When the reset time arrives, you need to re-decode. Communication is unavailable when you turn on this function, so turn it off when you use the radio for normal communication.


What is the D-HOLD function on my Tidradio device (MENU No.50)?

This function sets the DTMF Auto Reset Time, with a range of 5s-60s.


What are the D-RSP (DTMF Decoding Response) options on my Tidradio device (MENU No.51)?

This function sets the DTMF Decoding Response. The options are:

• NULL: Close

• Ring: Local ringing

• REPLY: reply response

• Both: local ringing + reply response


What are some common troubleshooting steps for my Tidradio device?

Phenomena Analysis Solution
You cannot turn on the radio. The battery may be installed improperly. Remove and reattach the battery.
The battery power may run out. Recharge or replace the battery.
The battery may suffer from poor contact caused by dirty or damaged battery contacts. Clean the battery contacts or replace the battery.
During receiving, the voice is weak or intermittent. The battery voltage may be low. Recharge or replace the battery.
The volume level may be low. Increase the volume.
The antenna may be loose or maybe installed incorrectly. Turn off the radio, and then remove and reattach the antenna.
The speaker may be blocked. Clean the surface of the speaker.
You cannot communicate with other group members. The frequency or signaling type may be inconsistent with that of other members. Verify that your TX/RX frequency and signaling type are correct.
You may be too far away from other members. Move towards other members.
You hear unknown voices or noise. You may be interrupted by radios using the same frequency. Change the frequency, or adjust the squelch level.
The radio in analog mode may be set with no signaling. Request your dealer to set signaling for the current channel to avoid interference.
You are unable to hear anyone because of too much noise and hiss. You may be too far away from other members. Move towards other members.
You may be in an unfavorable position. For example, your communication may be blocked by high buildings or blocked in an underground area. Move to an open and flat area, restart the radio, and try again.
It may be the result of external disturbance (such as electromagnetic interference). Stay away from equipment that may cause interference.
The radio keeps transmitting. VOX may be turned on or the headset is not installed in place. Turn off the VOX function. Check that the headphones are in place.

NOTE: If the above solutions cannot fix your problems, or you may have some other queries, please contact your dealer for more technical support.


What are the technical specifications of the Tidradio device?

General

Frequency Range (Rx)50-76, 76-108, 108-136 MHz
(Tx/Rx)136-174, 174-350, 350-400, 400-470, 470-600 MHz
Memory Channel 199
Operation Voltage DC 7.4 V ±10%
Battery Capacity 2500mAh (Li-Ion)
Frequency Stability ±2.5ppm
Operating Temperature -20°C to +50°C
Mode of Operation Simplex
Antenna Impedance 50ohm

Transmitter Part

RF Output Power <5W
FM Modulation 11K0F3E@12.5KHz
Adjacent Channel Power 60dB @ 12.5KHz
Transmission current <1500mA

Receiver Part

Receive Sensitivity 0.25μV (12dB SINAD)
Adjacent Channel Selectivity ≥55dB@12.5KHz
Inter Modulation and Rejection ≥55dB@12.5KHz
Conducted Spurious Emission <-57dB@12.5KHz
Rated Audio Power Output 1W @16 ohms
Receive current <380mA
Rated Audio Distortion ≤5%

NOTE: All specifications may be modified without prior notice or liability.


What is the CTCSS Chart for the Tidradio device?

CTCSS CHART (Hz)

Number Frequency Number Frequency Number Frequency Number Frequency Number Frequency
1 67.0 2 69.3 3 71.9 4 74.4 5 77.0
6 79.7 7 82.5 8 85.4 9 88.5 10 91.5
11 94.8 12 97.4 13 100 14 103.5 15 107.2
16 110.9 17 114.8 18 118.8 19 123.0 20 127.3
21 131.8 22 136.5 23 141.3 24 146.2 25 151.4
26 156.7 27 159.8 28 162.2 29 165.5 30 167.9
31 171.3 32 173.8 33 177.3 34 179.9 35 183.5
36 186.2 37 189.9 38 192.8 39 196.6 40 199.5
41 203.5 42 206.5 43 210.7 44 218.1 45 225.7
46 229.1 47 233.6 48 241.8 49 250.3 50 254.1

What is the DCS Code List for the Tidradio device?

DCS CODE LIST

Number Code Number Code Number Code Number Code Number Code
1 D023N 2 D025N 3 D026N 4 D031N 5 D032N
6 D036N 7 D043N 8 D047N 9 D051N 10 D053N
11 D054N 12 D065N 13 D071N 14 D072N 15 D073N
16 D074N 17 D114N 18 D115N 19 D116N 20 D122N
21 D125N 22 D131N 23 D132N 24 D134N 25 D143N
26 D145N 27 D152N 28 D155N 29 D156N 30 D162N
31 D165N 32 D172N 33 D174N 34 D205N 35 D212N
36 D223N 37 D225N 38 D226N 39 D243N 40 D244N
41 D245N 42 D246N 43 D251N 44 D252N 45 D255N
46 D261N 47 D263N 48 D265N 49 D266N 50 D271N
51 D274N 52 D306N 53 D311N 54 D315N 55 D325N
56 D331N 57 D332N 58 D343N 59 D346N 60 D351N
61 D356N 62 D364N 63 D365N 64 D371N 65 D411N
66 D412N 67 D413N 68 D423N 69 D431N 70 D432N
71 D445N 72 D446N 73 D452N 74 D454N 75 D455N
76 D462N 77 D464N 78 D465N 79 D466N 80 D503N
81 D506N 82 D516N 83 D523N 84 D526N 85 D532N
86 D546N 87 D565N 88 D606N 89 D612N 90 D624N
91 D627N 92 D631N 93 D632N 94 D645N 95 D654N
96 D662N 97 D664N 98 D703N 99 D712N 100 D723N
101 D731N 102 D732N 103 D734N 104 D743N 105 D754N
106 D023I 107 D025I 108 D026I 109 D031I 110 D032I
111 D036I 112 D043I 113 D047I 114 D051I 115 D053I
116 D054I 117 D065I 118 D071I 119 D072I 120 D073I
121 D074I 122 D114I 123 D115I 124 D116I 125 D122I
126 D125I 127 D131I 128 D132I 129 D134I 130 D143I
131 D145I 132 D152I 133 D155I 134 D156I 135 D162I
136 D165I 137 D172I 138 D174I 139 D205I 140 D212I
141 D223I 142 D225I 143 D226I 144 D243I 145 D244I
146 D245I 147 D246I 148 D251I 149 D252I 150 D255I
151 D261I 152 D263I 153 D265I 154 D266I 155 D271I
156 D274I 157 D306I 158 D311I 159 D315I 160 D325I
161 D331I 162 D332I 163 D343I 164 D346I 165 D351I
166 D356I 167 D364I 168 D365I 169 D371I 170 D411I
171 D412I 172 D413I 173 D423I 174 D431I 175 D432I
176 D445I 177 D446I 178 D452I 179 D454I 180 D455I
181 D462I 182 D464I 183 D465I 184 D466I 185 D503I
186 D506I 187 D516I 188 D523I 189 D526I 190 D532I
191 D546I 192 D565I 193 D606I 194 D612I 195 D624I
196 D627I 197 D631I 198 D632I 199 D645I 200 D654I
201 D662I 202 D664I 203 D703I 204 D712I 205 D723I
206 D731I 207 D732I 208 D734I 209 D743I 210 D754I

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