Manual [PDF] (29 pages)
- Updated: 18.05.2026
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Introduction……………………………………...34
Included………………………………………….34
Accessories List………………………………...35
Main Features…………………………………..35
Technical Information…………………………..37
Know the Radio………………………………...39
Preparation before using………………………40
Function Operations…………………………....46
Function Setting ………………………………..54
Maintenance…………………………………….58
Trouble Shooting ……………………………….59
Appendix: CTCSS and DCS chart…………….61
Contents
Contents
Professional Handheld FM Transceiver
Introduction
Included
Please unpack the transceiver carefully and check the
package again to make sure there is no listed items as
below inside before you discard it. Should any items have
been missed or damagedduring shipment, please file a
claim to the distributor immediately.
Thanks for purchasing NANFONE transceiver NF-688
(688plus). Please read this manual carefully to learn its
latest functions and operations before using. NF-668 is
with mini compact size, easy-to-use feature and stable
performance. It’s developedfor satisfying the customer’s
demand.
No matter you are in the countryside、 forest area、
pastoral area or the sea, it still can have a high quality
conversation. Meanwhile, the fashion casingalso can
meet your personality.
34
User Manual
Accessories List:
Main Features
Descripti Unit Quan
Antenna pc 1
Belt clip pc 1
pc 1
Charger
pc 1
Adaptor
pc 1
3*6 screw
pc 2
pc 1
pc 1
Lithium battery pack
QC passed card
User Manual
1、Frequency range: 400-470MHz
2、Voice reported function in both English and
Chinese (Optional)
3、High /Low power switchable: 5W
4、Wide/Narrow Bandwidth
5、CTCSS 50/ DCS 83 to avoid interference from
other radios
Professional Handheld FM Transceiver
35
Included
6、VOX function. Release your hands for convenient use
7、TOT Function. Avoid damage due to the long- term
transmit
8、BCL Function
9、Scan function. Scan and receive all the conversion
channel
10、FM Radio. Know more about the latest news。
11、Battery Save and Long Standby.
12、Built in Bluetooth(Optional).
All the above function can be programmed by PC.
The transceiver also has the below function:
1. Emergency alert. Keep you safe and comfort
2. Noises cancel function. Can clear up the noise after
conversation ended.
3. Channel locked function.
36
Main Features
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