Home User Tutorial How to spread spectrum of RT98 Mobile Car Radio?

How to spread spectrum of RT98 Mobile Car Radio?

by Lisa Zhao

RT98 Mobile Car Radio, very easy to carry and do not take place.  It is single band, you can choose : UHF 400-470MHz/ VHF 136-174MHz/FreeNet 149MHz. The SKU:A9171A ,A9171B UHF or VHF radio , its the factory settings are only one frequency when purchased, so some customer give us feedback that it is stuck on channel 1 or scanning does not work. To solve the problem, you need have to spread its spectrum.

Here is the steps to spread spectrum :
1. Install frequency-writing software and spread-spectrum software. For machines purchased after May 2019, you need
RT98-programming-softwareV1-02 software read and write frequency.

2. Download driver, USB driver:

3. Connect the computer and the car’s notification writing frequency line, and connect the car’s power supply and turn it on.

4. Spread spectrum steps: (Leave us message, we will send you the software)
(1) Open the spread spectrum software RT98V_SetOSetup_1.02 (if you have purchased VHF radio) or RT98U_SetOSetup_1.02 (if you buy UHF radio).
(2) Select the port corresponding to the write frequency line, read the frequency first, and then select COM/COMII,
Just write it into the car platform.
VHF frequency band—Freenet [149.025-149.1125MHz], COM
[136-174MHz], COMII [147-174MHz]
UHF frequency band—PMR446 [446.000-446.2000MHz], COM
[400-470MHz], COMII [450-470MHz]
5. Select the corresponding mode according to the customer’s frequency writing requirements.
6. After spread spectrum, use RT98-programming-softwareV1-02 software to read the frequency to change
Change the frequency, (the U-segment machine needs to use RT98U_Setup_1.02, the V-segment machine needs
Use RT98V_Setup_1.02
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Leave a Comment


Helge 09/05/2022 - 23:02

Pleas send me RT98V_SetOSetup_1.02

Luiz Carlos Siena 16/05/2022 - 23:13

Boa tarde a todos

preciso do softwaredo retevis rt98V


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