Programming Software Installing And Starting (In Windows Xp System); Maintenance; Specifications - Retevis RT98 User Manual

PROGRAMMING SOFTWARE INSTALLING AND STARTING (IN
WINDOWS XP SYSTEM)
1. Double click "RT98-Setup.exe", then follow the installing instruction.
2. Click start menu in computer, under "ALL PROGRAMS" menu, choose and click "USB To Com
port" in RT98 program, install "USB To Com port" driver by indication.
3. Connect the optional USB Programming cable to USB port in PC with transceiver.
4. Double click RT98 shortcut or click RT98 inprocedure index of start menu, choose serial com
port as indicated then click OK to start programming software.
5. According to instruction, select correct "COM Port, then click "OK" to start programming software.
» Even in same computer, the selective COM Port is different when USB cable connects
with different USB port.
You shall install software before connecting the USB cable line. Switch on transceiver before writing
frequency. You had better not switch on or off the power supply of transceiver when it is connected
with computer, otherwise, it will make transceiver unable to read or write frequency. In this case,
you have to turn off programming software, pull out USB cable. then reinsert USB cable and open
software, then rechoose COM Port, it will turn into normal operation. Therefore, please connect
transceiver with computer after switching on the transceiver. Don't restart transceiver power when
it is connected with computer.

MAINTENANCE

Default Setting after Resetting
VHF
Frequency
VFO Frequency 145.000MHz
Memory CH 1-199 CH1: 145.000MHz
Offset Direction --
Offset Frequency 600KHz
Channel Step 12.5KHz
CTCSS Encode/Decode --
CTCSS Frequency 88.5Hz
DCS Encode/Decode --
DCS Code 023N
Power Output HI
TOT 3
Squelch Level 3
Volume 28
RT98
UHF
435.000MHz
CH1: 435.000MHz
--
5MHz
25KHz
--
88.5Hz
--
023N
HI
3
3
28
15
Default Setting after Resetting
NO. Problem Possible Causes and Potential Solutions
+ and - polarities of power connection are reversed. Connect
Power is on, nothing
red lead to plus terminal and black lead to minus terminal of
1
appears on Display
DC power supply.
Check and solve problem resulting in blown fuse and replace
Fuse is blown
2
fuse with new fuse.
• Squelch is muted. Decrease squelch level.
No sound comes
• Tone or CTCSS/DCS squelch is active. Turn CTCSS or DCS
3
from speaker.
squelch off
Key and Dial do not
Key-lock function is activated. Cancel Key-lock function
4
function
5 No Scan Did not list the channel in the scan when programmed.
The whole band with
The squelch has opened during programmed
6
noise after programmed
a. Check the antenna is well or not, and check the antenna
Communication range
port whether well connected.
was short, bad
7
b. Antenna connector has debris or damaged. Whether set
sensitivity
Low power
Can not talk with other a. Frequency/channel different, pls modify
members within the b. CTCSS/DCS different, pls reset
8
group c. Out of the communication range

SPECIFICATIONS

GENERAL
Frequency Range VHF:136-174MHz; UHF:400-490MHz
Number of Channels 199 channels
Channel Spacing 25KHz(Wide Band); 12.5KHz(Narrow Band)
Phase-locked Step 2.5K,5K,6.25K,10K,12.5K,20K,25K,30K,50K
Operating Voltage 13.8V DC ±15%
Squelch Carrier/CTCSS/DCS
Frequency Stability ±2.5ppm
Operating Temperature -20~+60C
16