Retevis RA685 - Walkie Talkie Manual

FEATURE

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.

No.	Icon	Product Status
1		Channel strength indicator, the more the number, the stronger the signal
2		The current transmitting power is high power (the longest communication distance, the largest power consumption);
		The current transmitting power is medium power (more power saving, relatively moderate communication distance);
		The current transmitting power is low power (the most power saving, relatively close distance)
3		When the side tone switch is set to key side tone/key + ID/ID, this symbol appears
4		This symbol indicates that the current subtone is a digital subtone
		This symbol indicates that the current subtone is an analog subtone
5		When this symbol appears in frequency mode, it means that the transmitting frequency is the receiving frequency plus a frequency difference frequency. The frequency difference frequency is set in menu 26
		When this symbol appears in frequency mode, it means that the transmitting frequency is the receiving frequency minus a frequency difference frequency. The frequency difference frequency is set in menu 26
6		The appearance of this symbol indicates that the dual-band standby is on, and it is in the dual-standby state. It can be watched at the frequency points of the two frequency bands displayed on the screen
7		The symbol appears when the keyboard is locked; press and hold the [#] key to unlock, and the symbol disappears
8		Indicates that the voice-activated emission function is activated, and the emission will start when the sound pressure level of the microphone reaches the set value
9		Receiving and transmitting frequency inversion in frequency mode/channel mode
10		This symbol appears when the channel is working in narrowband mode
11		Display the current remaining battery power; the more bars, the more battery power
12		A/B band pointer, indicating the current working frequency or working channel
13	Aranbic No.	Digital channel mode, the channel number of the A band
14	Aranbic No.	Digital In channel mode, the channel number of the B band

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

Install the battery

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)

Attention:

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:

Check battery
This function allows you to know the current battery voltage and remaining power.
Long press 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:

Battery Icon	Batter Power
	High
	Middle
	Low
	insufficient

Basic operation

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 display characters	First-level menu	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
		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 shutdown 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.

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:

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 number forward or backward; or directly enter number 2 and 4 to enter 24 menu number;
3. Press [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 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, the keyboard lock function is closed (voice prompt "keyboard unlock"). 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:

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 [] or [] key to select 32 menu number forward or backward; or directly enter numbers 3 and 2 to enter 32 menu number;
3. Press the [MENU] key, the voice prompt "channel delete";
4. Press [] 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.
   • 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.
5. Press the [MENU] key, the voice prompt "OK", delete the stored channel parameters, save and return to the previous menu.
   • 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 store them 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
6. Channel bandwidth Broadband
   The channel name is written in the frequency writing software when needed

Steps:

1. Short press [V/M] key to switch to VFO mode, 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, 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 received 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 the same way, setting the transmitting analog sub-tone will automatically turn off the transmitting digital sub-tone. If you need to set the transmit analog sub-tone: press → (number keys 1, 5) → → [] or [] to select the sub-tone value →,
   • 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
8. PTT-ID button transmission setting: press → (number keys 2, 0) → → [] or [] to select the transmission mode (OFF/BOT/EOT/BOTH) as OFF→ ,
9. Channel storage settings for receiving and transmitting the same frequency:
   1. Press → (number keys 3, 1), the screen displays:
   2. Press , the voice prompt "storage channel", the screen displays :
   3. Press or key to select empty channel forward or backward, the screen displays :
   4. Press , the voice prompts "receive storage", the screen displays : press the voice prompts "storage channel".
   5. Press , the voice prompt "transmit storage", the screen displays :
   6. Press EXIT key to return to frequency mode.
10. Channel storage settings for receiving and transmitting different frequencies:
    1. Press → (number keys 3, 1), the screen displays :
    2. Press , the voice prompt "storage channel", the screen displays :
    3. Press the [] or [] key to select the empty channel forward or backward, and the screen displays: .
    4. Press , the voice prompt "receive storage", the screen displays: ;
    5. Press EXIT key to return to frequency mode.
    6. Perform step 3, enter the desired transmit frequency;
    7. Press → (number keys 3, 1), the screen displays: ,
    8. Press , the voice prompt "storage channel", the screen displays: ,
    9. Press , the voice prompt "transmit storage", the screen displays: ;
    10. 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 on the same channel.

Side tone switch
Key side tone: The machine emits key side tone when sending key side tone
ID code side tone: When sending the ID code, the machine will emit the ID code side tone
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 charging with a power bank.

Frequency measurement function
Press +〖*〗key to enter the frequency measurement mode, press【】or【】key to select 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 special digital mute on 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 of the walkie-talkie.

Main Specifications

All specifications are subject to change without notice or responsibility.

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.