Retevis RA685 Dual Band Ham Radio User Guide

Retevis RA685 Dual Band Ham Radio User Guide

EU Importer: Germany Retevis Technology GmbH
Address: Uetzenacker 29,38176 wendeburg

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Brochures, SoftwareFirmware, Manual, etc, Pls contact your direct reseller first OR go to website retevis.com and check “support” in the each product link to download it.

FEATURE

1. Frequency range: 144-146MHZ(RX/TX) 430-440MHZ(RX/TX)
2. Dual-band, Dual Display, Dual Standby, U/V band relay cross-band transmission and reception, convenient for users to set network at any time.
3. High, middle, and low power switching to meet the power requirements of users at different distances, more energy-saving and power-saving
4. Up to 128 memory channels for programming frequency and other various data
5. Multiple display modes such as channel number, frequency, channel frequency, channel name, etc.
6. CTCSS/DCS, DTMF signaling, reject redundant calls from other stations
7. The tail tone is eliminated to avoid the impact noise from the speaker after the call is over
8. VOX voice-activated transmission, no need to press the PTT button to talk normally
9. Emergency alarm, ANI identification, and other functions through DTMF
10. DTMF, CTCSS (60.0 -259.9 HZ), DCS signaling codec function
11. 8-step frequency selection (2.5K, 5.0K, 6.25K, 10.0K, 12.5K, 20.0K, 25.0K, 50.0K)
12. Automatic power saving function to extend battery life
13. SOS emergency alert function
14. Computer programming function
15. Wide/narrow band (25KHz/12.5KHz) selection function
16. Digital FM radio (receiving 65-108MHz)
17. Direct selection of keyboard numbers for menu items, the transmit and receive frequency can be manually input
18. Strong flashlight lighting function
19. Frequency test function, copy the frequency of other devices at any time
20. USB charging function, You can use the USB charging cable to charge
21. Special CTCSS/DCS (frequency hopping function)

Check the contents of the package
The box contains the following items. If any items are missing or damaged, please contact the dealer where you purchased the product.

Note: The antenna varies with the frequency band. Please refer to the color ring label at the bottom of the antenna for the antenna frequency band. If the label does not indicate the frequency band, please refer to the specific frequency band on the host label.

Familiar with this machine

Status indication

Status Icons

LED indicator light
This machine is equipped with LED indicators to let you easily grasp the current operating status of the machine.

Preparation before use
Install the antenna

1. Turn off the walkie-talkie and insert the threaded end of the antenna into the antenna port on the top of the main unit.
2. Tighten the antenna clockwise.

When removing the antenna, rotate it counterclockwise to remove it. Do not shake the unit with the top of the antenna, otherwise, it will reduce the working performance and service life of the unit’s antenna.

Install the battery

1. Align the battery with the battery mount on the back of the walkie-talkie.
2. Press the battery forcefully into the walkie-talkie, and slide the battery up until the lock plate is locked to the correct position.

If you need to remove the battery, turn off the walkie-talkie. Press the battery lock to the unlocked position and Hold it down, then slide the battery down and away from the battery mount.

Install the belt clip
Align the two screw holes of the belt clip with the screw holes above the battery, install, and tighten the screws. If you need to remove the belt clip, loosen and remove the screws from the belt clip.

Install an external headset/microphone (optional purchase separately)

1. Open the earphone cover.
2. Insert the headphone plug into the headphone jack.
3. When you don’t need to use the earphones, pull out the earphone plug from the earphone hole and put on the earphone cover.
4. When the universal interface is not used, please put on the dust cover.

Attention

• Please use the charging equipment designated by our company to charge.
• When charging the whole device, it is recommended to turn off the walkie-talkie first.
• According to the 2016 new requirements of the International Civil Aviation (IATA) “Technical
• Regulations for the Safe Air Transport of Dangerous Goods”, the state of charge of lithium-ion batteries (cells) for air transport shall not exceed 30% of their rated capacity. Therefore, the first time the battery is used with the host, there will be a low battery warning with the voice prompt “Please charge”. Phenomenon, please charge the battery before use.
• When the battery is charged in the charger, the red light may keep flashing. This is the pre-charging process performed by the charger to protect the battery when the battery power is too low. It is a normal phenomenon.
• Generally, it can turn red after 30 seconds. Normal charging state when the light is on.

Walkie-talkie charging
When using the terminal for the first time, a low battery alarm may appear. Please charge the battery before using the terminal, The steps are as follows:

1. Insert the power adapter interface into the jack on the back of the charging base.
2. Insert the plug of the power adapter into the power outlet.
3. Put the battery into the charging cradle.
4. Observe the LED indicator of the charging base to understand the current charging status, as shown in the table below.

Check battery

• This function allows you to know the current battery voltage and remaining power.
• Long press【0】key to display the current voltage.
• The current battery level is displayed on the upper right of the screen, and the battery icon is as follows

Basic operation

Knobs, switches,

buttons

| Instructions
---|---
Power/volume switch| •Power on/off: Turn the [Power/Volume Switch] knob clockwise to turn on the radio and adjust the volume to the maximum.

•Turn the [Power/Volume Switch] knob counterclockwise to adjust the volume to the minimum until the radio is turned off.

•If the voice broadcast function is turned on, the startup voice will be broadcast.

Select channel| The channel is the channel through which the signal is transmitted. After power on, press the [V/M] key to switch to the channel mode, press [/] to select the channel, and the channel number will be displayed on the right side of the screen. If the channel broadcast function is

turned on, the intercom will broadcast the current channel mode.

PTT button call| •Channel mode to initiate a call: After selecting a channel, press and hold the [PTT] key to initiate a call to the current channel. Speak into the microphone in a normal tone. When a call is initiated, the red LED light is always on.

•Manually input frequency to initiate a call: Press [V/M] key to switch to frequency mode, enter a frequency within the allowable range, and hold down the [PTT] key to initiate a call to the current channel. Speak into the microphone in a normal tone. When a call is initiated, the red LED light is always on.

•Receiving a call: After releasing the [PTT] key, you can answer it without any operation.When receiving a call, the green LED light is always on.To ensure the best receiving volume, please

keep the distance between the microphone and your mouth at 2.5 cm ~ 5 cm when transmitting.

Side Key 1| The side buttons have two modes: short press and long press, and the following functions can be selected: off, flashlight, alarm, radio, NOAA weather forecast, monitoring, and scan.

Off: No function

Flashlight function: Short press the [SK1] key to turn on the flashlight function and the flashli- ght light is always on; short press the [SK1] key again to turn off the flashlight function. If you choose to operate the flashlight function in the menu mode,short press the [SK1] key to turn on the flashlight for the first time, short press the second flashlight to keep flashing, and short press three times to turn off the flashlight.

Alarm: SOS emergency alarm function: Short press the [SK1] key to turn on the alarm function. At this time, the green indicator light and the red indicator light flash at the same time. Short press the [SK1] key again to release the alarm.

Radio: Short press the [SK1] key to turn on the radio function, and short press the [SK1] key again to turn off the radio.The radio frequency can be entered through the keyboard or tap the “#” key to automatically search for radio stations. In radio mode, press the [EXIT] key to switch between 65-75/76-108MHz frequency band.

NOAA weather forecast: Short press the [SK1] key to turn on the NOAA function, and short press the [SK1] key again to turn off the NOAA function.

Press the up and down keys to select the channel: 10 channels for selection: see Appendix 1 for details

Monitoring function: Short press the [SK1] key to turn on the monitoring function, and release the [SK1] key to cancel the monitoring.

Sweep: Short press [SK1] key to turn on the sweep function, and directly measure the

frequency of other devices.

Side Key 2| The same side key SK1 has a short press and long press function to choose
---|---
V/M key| Frequency mode or channel mode switching.

•Frequency mode: Manually enter the frequency.

Channel mode: Press [ ▲ / ▼ ]to select a channel.

A/B key| A/B upper and lower frequency band switch selection.

Press the PTT button to transmit in the frequency band pointed to by the pointer.

Keyboard lock and unlock| Manual lock: Long press # key to lock the intercom.

Automatic lock: After the automatic keyboard lock is turned on, when there is no operation on the buttons and knobs,the automatic lock will be delayed for 10 seconds.

Unlock: Long press the # key to unlock the keyboard.

Function Description
Menu Settings
You can enter “Menu Settings” through the menu key of the terminal to set some common functions. The specific instructions and operation methods are as follows:

Menu

number

| First-level menu

display characters

| Secondary menu

display characters

| Description of secondary menu setting
---|---|---|---
0| Squelch| 0,…,9| Squelch level, the lower the level, the easier it is to interfere, the higher the level the worse the sensitivity, the default value

is 3.

1| Step| 2.5KHz| In frequency mode, press ▲ / ▼ key to change the step value

of frequency, the value range is 2.5~50KHz

5.0KHz
6.25KHz
10.00KHz
12.50KHz
20.0KHz
25.0KHz
50.0KHz
2| Tx Power| High| High power
Middle| Middle Power
Low| Low Power
3| Power save| OFF| Turn off power saving mode
ON| Turn on power saving mode
4| Vox Level| OFF| Turn off voice control
1,2,… 10| Start the sound control level intensity, value range
5| Bandwidth| Wide| Wide band working
Narrow| Narrow band working
6| Backlight| Bright| Backlight is always on
5Sec,10Sec,… 60Sec| Automatic backlight delay time, the value range is 5~60 seconds
7| Menu Exit Time| 5Sec,10Sec,… 60Sec| Menu exit time, the value range is 5~60 seconds
8| Dual Standby| OFF| OFF
ON| ON
9| Beep Prompt| OFF| OFF
ON| ON
10| VOICE| OFF| OFF
ON| ON
11| Tx over time| OFF| Press and hold the PTT button to keep launching
---|---|---|---
15,30,…600| Value range 15~600, step value 15
12| Rx DCS| OFF| NO DCS
D023N,…,D754I| Standard sequence of DCS
13| Rx CTCSS| OFF| NO CTCSS
67.0HZ,…,254.1HZ| Simulate the standard sequence of mute, at the same time, you can directly type standard or non-standard analog mute

through the keyboard

14| Tx DCS| OFF| NO DCS
D023N,…,D754I| Standard sequence of DCS
15| Tx CTCSS| OFF| NO CTCSS
67.0HZ,…,254.1HZ| Simulate the standard sequence of mute, at the same time, you can directly type standard or non-standard analog mute

through the keyboard

16| DTMFST| OFF| OFF
DT-ST| DT-ST
ANI-ST| ANI-ST
DT+ANI| DT+ANI
17| TONE| 1000hz,1450hz,

1750hz,2100hz

| Repeater activation audio
18| S-CODE

g

| 1,2，…,15| When needed, send out this group of information codes (information codes can only be written by frequency writing

software)

19| Scan Mode| TO| Time Scan
CO| Carrier Scan
SE| Search Scan
20| PTT-ID| OFF| Press PTT to not send ID code
BOT| Press PTT to send ID code (ID code is set by frequency

writing software)

EOT| Release PTT to send ID code
BOTH| ID code is sent when you press and release the PTT button
21| MDF-A| Frequency| In the channel mode of the A segment, the channel displays

the frequency

Name| In the channel mode of section A, the channel displays the channel name (the specific name is set in the frequency

writing software)

22| MDF-B| Frequency| Band B is in channel mode, the channel displays the frequency
Name| In the channel mode of section B, the channel displays the channel name (the specific name is set in the frequency

writing software)

23| Busy Lockout| OFF| Channel is occupied and allowed to transmit
ON| Channel is occupied and transmission is prohibited
24| Key Auto Lock| OFF| Turn off automatic keyboard lock
ON| Turn on the keyboard auto-lock function
25| Direction| None| In frequency mode, there is no frequency difference between the transmitting frequency and the receiving frequency
25| Direction| Plus| In frequency mode, the transmitting frequency is equal to the

receiving frequency plus the frequency difference frequency

---|---|---|---
Minus| In frequency mode, the transmitting frequency is equal to the

receiving frequency minus the frequency difference frequency

26| Offset| 00.000,…,99.998| In frequency mode, the difference between the transmitting

and receiving frequencies

27| Key1 sp| OFF| No function
LAMP| Turn on the flashlight function
SOS| Turn on the alarm function
FM| Turn on the radio function
NOAA| Enable NOAA weather forecast function
MONI| Turn on the monitoring function
Scan| Turn on the sweep function
28| Key1 LP| | Same function as side key 1 short press
29| Key2 sp| | Same function as side key 1 short press
30| Key2 LP| | Same function as side key 1 short press
31| Memory| 1,…,128| When storing a channel, it is used to indicate the channel number to be stored. If the word CH- is displayed in front of the number, it means that the channel originally has channel

parameters

32| Delete| 1,…,128| Delete the channel parameters of the specified channel, if there is no CH- in front, it means that the channel has no

parameters and the operation is invalid

33| Alarm Mode| On site| On-site alarm
Send sound| Send sound
Send code| Send code
34| TAIL| OFF| After the PTT is released, the machine does not send a shutdown code, usually when it is relayed through the relay, let it make noise to confirm whether the signal of the

machine is relayed

ON| After releasing the PTT button, the machine sends a shutd-

own code to suppress the instantaneous noise of the listener

35| PROGER| OFF| Turn off the call end alert tone
ON| Turn on the call end alert tone
36| Language| Chinese|
English|
37| Reset| VFO| Menu initialization only
ALL| Menu and channel initialization
38| SPECIAL DCS| OFF| Close special DCS
ON| Open Menu and channel initialization, only with same DCS

can communicate

Common function description
The functions supported by the walkie-talkie are shown in the table below.

to adjust the signal strength required when

receiving a signal. The squelch level (0 open to 9 is the highest) is selected by the local environ- ment, and 3 is generally selected.

CTCSS/DCS| CTCSS/DCS is used to avoid listening to irrelevant calls of the same frequency. Only when the

transmitted CTCSS/DCS matches the received CTCSS/DCS digital, the walkie- talkie can listen to the voice through the speaker.

TOT| Timeout prohibition TOT timeout prohibition can limit the single transmission time (the default is

60 seconds) to prevent the communication parties from occupying channel resources for a long time, and to prevent the terminal from being damaged due to overheating. After the duration of pressing the [PTT] key expires, the terminal will automatically terminate the transmission and emit a warning tone. If you need to talk again, please transmit after the preset time.

Power saving| When the walkie-talkie has no receiving or transmitting, no button or knob operation reaches the

power saving time, it will automatically enter the power saving mode.

Low battery

warning

| It is used to remind the battery to charge in time when the battery power is low. When the battery

is too low, transmission will be prohibited.

Emergency

Alarm

| An emergency alarm is when you encounter an emergency, you can ask your companion or the

control center for help.

SCAN| After scanning is turned on, the terminal will scan according to the scan list. When there is

activity on a certain channel, it will stay on the channel to listen, so as to understand the current activity status of related group members.

BCL| Busy channel lock BCL can prevent interference from other terminals on the same channel

during transmission. When other terminals occupy the current channel, press and hold the [PTT] key, and the terminal will emit a “beep” tone, indicating that it cannot be transmitted. If the current channel is free, press and hold the [PTT] key to start transmission.

Power level| The power level refers to the transmit power level of the walkie- talkie, which can be set to high

power or low power. High power can increase the signal strength of the current transmitted voice of the terminal, and it can also communicate with the remote terminal. Low power can save power.

MONI| Monitoring MONI monitoring is a listening method used to receive more signals or weak signals.

It helps to distinguish and listen to the faint sounds in the speakers.

Channel

broadcast

| Channel broadcast is used to indicate the sequence of the current channel.
VOX| Voice-activated transmission VOX After turning on the voice-activated, when the voice detected by the microphone meets the transmission conditions, the terminal will automatically transmit the voice, and you can speak directly without pressing the [PTT] key. The voice control gain is used to control the sensitivity of the microphone’s voice control emission, which is configured by the dealer.

Voice-activated emission (VOX)
After turning on this function, if the user’s speaking volume level reaches the level selected by the walkie-talkie, The walkie-talkie can also start the transmission operation by voice without pressing the [PTT] key. In some work situations, the user can not freely press the [PTT] key to call, then this function can be enabled. Operation method:

1. In the standby mode, press the [MENU] key, the voice prompt “menu setting”, enter the function menu setting;
2. Press the [▲] or [▼] key to select 4 menu numbers forward or backward, or directly enter the number 4 to enter 4 menu number;
3. Press the [MENU] key, the voice prompt “Voice-activated emission”, press the [▲] or [▼] key, and select 1~10 (the larger the value, the higher the sensitivity; such as selecting 3)
4. Press the [MENU] key, the voice prompt “OK”, save, and return to the previous menu.
5. Repeat the above operation, and select OFF to turn off the voice-activated transmission function.
6. After turning on the voice-activated transmission function, speak into the microphone, and the voice can be sent out; stop speaking, and the transmission will also stop. You can select the VOX sensitivity level according to the quietness of the use environment. If the environment noise is too large, there will be long emission after the VOX function is activated.
7. If the dual-wait function is enabled on this machine, the VOX function is turned off by default, and the VOX function cannot be activated.

Keyboard lock
The keyboard lock function disables the number keys to prevent you from activating a function by mistake. This machine can be set to automatic keyboard lock function, The operation is as follows:

1. In the standby mode, press the [MENU] key, the voice prompt “menu setting”, enter the function menu setting;
2. Press【▲】or【▼】key to select 24 menu numbers forward or backward; or directly enter numbers 2 and 4 to enter 24 menu numbers;
3. Press the [MENU] key, press [▲] or [▼] key to select ON;
4. Press the [MENU] key, the voice prompt “OK”, save, and return to the previous menu. The automatic keyboard The lock function is activated.
5. Repeat the above operation, select OFF to turn off the automatic keyboard lock function, and select manual keyboard lock.

The operation is as follows

1. In the standby state, long press the “#” key for more than 2s, the keyboard lock function is activated (voice prompt “keyboard lock”);
2. Long press the “#” key repeatedly for more than 2s, and the keyboard lock function is closed (voice prompt “keyboard unlock”).
3. After the automatic keyboard lock function is turned on, when it is not locked, the numeric keyboard is automatically locked without any keyboard operation for 10 seconds.

Dual Standby
When in dual standby mode, the two-way radio can receive the frequency set by the A or B channel. The operation is as follows:

1. In the standby mode, press the [MENU] key, the voice prompt “menu setting”, enter the function menu setting;
2. Press the [▲] or [▼] key to select 8 menu numbers forward or backward, or directly enter the number 8 to enter 8 menu numbers;
3. Press the [MENU] key, the voice prompt “Dual frequency waiting”, press [▲] or [▼] key, select ON
4. Press the [MENU] key, the voice prompt “OK”, save, and return to the previous menu. The dual-frequency waiting function is turned on.
5. Repeat the above operation, and select OFF to turn off the dual-frequency standby function. In the menu mode, the dual-frequency standby is temporarily turned off, and after exiting, the dual-frequency standby will be restored.
6. Since the dual-standby dual-save mode is in the main and sub-channel scanning state, in the dual-segment dual-save mode, even if the power saving function of the unit is turned on, its power saving function is still invalid, and the standby time of the walkie-talkie will be shortened.

Channel delete
You may want to delete a memory channel due to setting errors or changing other settings. The operation is as follows:

1. In the standby mode, press the [MENU] key, the voice prompt “menu setting”, enter the function menu setting;

2. Press the [▲] or [▼] key to select 32 menu numbers forward or backward, or directly enter numbers 3 and 2 to enter 32 menu numbers

3. Press the [MENU] key, the voice prompt “channel delete”;

4. Press the [▲] or [▼] key to select the channel to be deleted forward or backward. If the number prefix displays the character “CH-“, it means that the channel number originally has channel
   parameters and can be deleted.

5. If the number prefix does not display the character “CH-“, it means that the channel number is empty and can be stored directly without deleting it.

6. Press the [MENU] key, the voice prompt “OK”, delete the stored channel parameters, save and return to the previous menu.

7. If the channel is empty, press the [MENU] key to directly return to the previous menu.

Channel storage
The parameters to be included in a complete channel include receiving frequency, transmitting frequency, receiving sub-audio, transmitting sub- audio, transmitting power, channel bandwidth, PTT-ID, busy lock, signaling code, scan addition, channel name, etc. Except for scanning addition and channel name editing through the frequency writing software, other parameters can be set in the frequency mode, and then stored in the designated channel number through the menu 31 Store Channel.
Example: The channel storage parameters are required as follows, and they are stored in the channel number with channel number 001.

1. Receiving frequency 440.5 MHZ
2. transmission frequency 4 30.5 MHZ
3. Receive mute digital 　 D031N
4. Transmit mute digital 　 D031N
5. High transmit power

Channel bandwidth Broadband
The channel name is written in the frequency writing software when needed
Steps :

1. Short press the [V/M] key to switch to VFO mode, and the screen displays .
2. In the frequency mode, press the [A/B] key to make the pointer point to A (upstream frequency point) .
3. Press the number keys 4, 4, 0, 5, 0, and 0 in turn to adjust the frequency to 440.500MHZ, and the screen displays .
4. Power setting: press (number key 2) → → [▲] or [▼] to select the power (HIGH/MID/LOW) as HIGH→ ,
5. Bandwidth setting: Press → (number key 5) → → [▲] or [▼] to select the channel bandwidth (NARR/WIDE) as WIDE→ ,
6. Receive digital tone setting: press → (number keys 1, 2) → [▲] or [▼] to select the tone value D031N→ After setting the receiving digital sub-tone, it will automatically turn off the receiving analog sub-tone; in the same way, setting the receiving analog sub-tone will automatically close the receiving digital sub-tone. To set the analog tone: press → (number keys 1, 3)→ →【▲】or【▼】to select the tone value→ .
7. Transmitting digital sub-tone setting: press → (number keys 1, 4) → → [▲] or [▼] to select sub-tone value D031N→ , ·After setting the transmitted digital sub-tone, the transmitting analog sub-tone will be automatically turned off; in In the same way, setting the transmitting analog sub-tone will automatically turn off the transmitting digital sub-tone.
8. If you need to set the transmit analog sub-tone: press → (number keys 1, 5) → → [▲] or [▼] to select the sub-tone value → ,
9. When setting the analog sub-tone, you can directly input the analog sub-tone frequency through the keyboard. Both standard sub-tone and non-standard sub-tone can be selected. If it is selected by the up and down keys, You can only select the standard analog sub-tone
10. PTT-ID button transmission setting: press → (number keys 2, 0) → → [▲] or [▼] to select the transmission mode (OFF/BOT/EOT/BOTH) as OFF→,
11. Channel storage settings for receiving and transmitting the same frequency

Press → (number keys 3, 1), the screen displays

1. Press, the voice prompt “storage channel”, and the screen displays
2. Press 【▲】or【▼】key to select an empty channel forward or backward, and the screen displays
3. Press , the voice prompts “receive storage”, and the screen displays: press the voice prompts “Storage channel”
4. Press, the voice prompt “transmit storage”, and the screen displays
5. Press【EXIT】key to return to frequency mode.
6. Channel storage settings for receiving and transmitting different frequencies
7. Press → (number keys 3, 1), the screen displays
8. Press, the voice prompt “storage channel”, and the screen displays
9. Press the [▲] or [▼] key to select the empty channel forward or backward, and the screen displays
10. Press, the voice prompt “receive storage”, and the screen displays:
11. Press【EXIT】key to return to frequency mode.
12. Perform step 3, Enter the desired transmit frequency
13. Press → (number keys 3, 1), and the screen displays
14. Press, the voice prompt “storage channel”, and the screen displays
15. Press, the voice prompt “transmit storage”, and the screen displays ****
16. Press【EXIT】key to return to frequency mode.

Analog sub-audio (CTCSS)/digital sub-audio (CDCSS)
Analog sub-audio (CTCSS)/digital sub-audio (CDCSS) is mainly used to avoid listening to unrelated calls on the same frequency. If CTCSS/CDCSS is set, within the effective communication range, only calls with the same subtone signaling set in the channel can be received; but if CTCSS/CDCSS signaling is not set, you can listen to the effective communication range All calls are on the same channel.

Side tone switch
Key side tone: The machine emits a key sidetone when sending key sidetone
ID code side tone: When sending the ID code, the machine will emit the ID code sidetone Button side tone + ID code side tone: When sending button side tone and ID code side tone, the machine emits the corresponding sound
Note: Button side tone, including number key side tone and TONE tone

USB charging
The walkie-talkie can be directly plugged into the USB charging cable and charged with a power bank.

Frequency measurement function
Press the +〖*〗key to enter the frequency measurement mode, and press【▲】or【▼】key to select the U segment or V segment. When a signal is received, if the current frequency has a mute tone, it will be displayed on the screen at the same time, Press the key The current frequency can be saved. Or you can select the shortcut operation method by pressing the side button.

Special digital mute
The special digital mute is a mute encryption function, which can prevent other machines from copying the mute of this machine. After this function is turned on, only the same DCS code can talk to each other. The mute encryption function is effective only when the DCS mute code is set. Only the same machines with a special digital mute can talk to each other.

Optional accessories

Please use the accessories specified by our company. If you use unauthorized accessories without authorization, all consequences caused by this are the responsibility of the user. Please consult your local dealer for optional accessories for the walkie-talkie.

Main Specifications
All specifications are subject to change without notice or responsibility.

1[email protected]
Spurious emission| -36dBm＜1GHz， -30dBm＞1GHz
FM signal-to-noise ratio| 45dB@25KHz, 40dB @12.5KHz
Audio distortion| ≤5%
Modulation limit| ±5.0 KHz@25 KHz，±2.5 [email protected] KHz
Adjacent channel power| 70dB @ 25KHz，60dB @ 12.5KHz
(300-3000Hz) Audio response| +1~3dB
RECEIVE| Receiving sensitivity| 0.25μV (12dB SINAD)
Adjacent channel selectivity| ≥60dB@25KHz ,≥[email protected]
Intermodulation immunity| ≥60dB@25KHz , ≥[email protected]
Conducted spurious emissions| ≤-57dB@25KHz, ≤-57dB @12.5KHz
FM signal-to-noise ratio| ≥45dB@25KHz, ≥40dB @12.5KHz
Audio output power| 1W @16ohms
Audio distortion| ≤5%
Audio response(300-3000Hz)| +1～-3dB

Disclaimer
This manual strives for the accuracy and completeness of the content during the compilation process, but the company does not assume any responsibility for possible errors or omissions. Due to the continuous development of technology, the company reserves the right to change product design and specifications without notice. Without the company’s prior written authorization, this manual may not be copied, modified, translated, and distributed in any form. The third-party products and content involved in this manual are owned by the third party, and our company does not provide guarantees for their accuracy, validity, timeliness, legality, or completeness.

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