JINGTONG JT-208 User Manual

Adelaide Hills Amateur Radio Society short form manual for Jingtong JT-208/JT-308
AHARS - JINGTONG JT-208 / 308 Short Form Users Manual
Common Features:-
• 30 Channels
• 3 operating modes
o Direct frequency entry via keypad
o Memory mode by channel number
o Memory mode by frequency
• Programmable repeater shift
• Programmable repeater offset
• Split frequency operation for Tx / Rx
• Selectable frequency steps of 5/10/12.5/25Khz
• CTCSS operation with 1 of 38 codes on Tx /Rx
• Inbuilt battery saver when muted
• External earphone & microphone operation.
General Specifications :-
• Frequency Range
 JT-208 136-174 Mhz
 JT-308 400-470 Mhz
• Voltage – 7.2V NiMH rechargeable battery
• Channels – 30
• Antenna Impedance 50 Ohms
• Modes – Simplex, Repeater, Split Tx/Rx
• TX Output Power 1.8 – 2.5 Watts RX sensitivity < 0.16 uV (12dB Sinad)
• Modulation FM =< 5Khz Deviation Mute sensitivity < 0.2 uV
• Spurious emission <-60dB Mute sensitivity < 0.2 uV
• Current on TX =< 600 mA Intermod rejection 50dB
• Negative Ground Audio Power > 300mW
• Dimensions 100 x 50 x 30 mm RX current =< 100 mA – muted 20 mA
Power / Volume control :
Turn clockwise to switch on power, and adjust control for suitable volume level.
Mute Control :
Turn anti-clockwise to un-mute & clockwise to mute receiver.
LED indicator :
When unit is muted the LED is not lit, when receiving a signal the LED will be green and
in transmit mode will indicate red.
Setting Frequency Step size : (DF mode)
This function sets the size of the frequency step when using the up / down keys under the
LCD display. Before the step size can be set the unit needs to be in the ‘direct frequency’
mode (DF) by pressing [SET] [1] (this should be the default).
To change the step size press [SET] [4] . Continue to press [4] and you will see the step
size changing in the following rolling sequence :-
Æ 2
5 Æ125 Æ10 Æ 5
Select the step size you require – the default 25 Khz will be adequate for setting most
repeater channels. When you have selected the required step size push [EXIT] button.
by Barry Williams VK5ZBQ 17/7/06 Page 1 of 4

JINGTONG JT-208 Specifications

General

Brand	JINGTONG
Model	JT-208
Category	Radio
Language	English

Summary

AHARS Jingtong JT-208/308 Manual

Common Features

Lists key features like channels, operating modes, direct entry, memory modes, and programmable repeater shift.

General Specifications

Details technical specs like frequency range, voltage, channels, impedance, modes, power output, and dimensions.

Power and Volume Control

Explains how to turn on the unit and adjust the volume using the control knob.

Mute Control Operation

Describes how to mute and unmute the receiver using the control knob.

LED Indicator Function

Explains the LED colors for mute, receiving, and transmitting.

Setting Frequency Step Size

Details how to set the frequency step size using the up/down keys in DF mode.

Setting Repeater Offset

Turning Repeater Offset On/Off

Describes how to toggle the repeater offset and set its direction (positive/negative).

Setting Frequencies

Storing Frequencies to Memory

Details the process of storing commonly used frequencies and repeater channels into memory.

Storing Repeater Frequencies

Specific steps for storing repeater frequencies with offset information into memory channels.

Storing Repeater or Odd Splits

Using and Recalling Memory Channels

Explains the two modes for accessing memory channels and how to select them.

Deleting Channels

Scanning Operation

Details how to scan frequency ranges or programmed memory channels.

Sub Audible Tones (CTCSS)

Setting CTCSS Frequency and Activating

Steps to select, set, and activate CTCSS tones for transmission or reception.

Locking the Keypad

Jingtong Transceiver Key Functions

Lists key functions and their corresponding button presses for transceiver operation.