Guangzhou ComArt Communications Equipment
Products
Wireless Data Transmission Modem

1. Abstract

U3/U4 Smart Radio, added the function of wireless data transmission modem, which offer you a professional and reliable way to transfer or share data, and make your data communication more security and secrecy. When you are in a remote place or the public network is busy, it can ensure your smooth work through U3/U4 radio’s real-time transferring data.

 

2. Function

Via Bluetooth, Phone A(or PC A) connecting to U3/U4 radio A, Phone B(or PC B) connecting to U3/U4 radio B, Phone A(or PC A) and Phone B(or PC B) can send text data to each other through the radio frequency of U3/U4 radio. 

Connection process:

2.1. Mobile phone or PC establishes the connection with U3/U4 radio via Bluetooth.

2. 1.1. The setting before the use of U3/ U4 radio

Open the bluetooth function of U3/U4 radio, to make U3/U4 to be found.

2. 1.2. Mobile Phone/PC searches for the Bluetooth of U3/U4 and connects to it

Set up the “text APP” on the mobile phone/PC, then the “text APP” will automatically search other Bluetooth equipment and list the equipment list. The user can select the Bluetooth of U3/U4 radio to connect.

2.2. Send Text via U3/U4 radio

After establishing a Bluetooth connection, the text APP of mobile phone/ PC will jump to a text transceiver interface, user can edit text in the interface and click the sending button, then the text will be sent to the U3/U4 radio the mobile phone/PC connect to. The U3/U4 radio can send the text to another radio through radio frequency. So another radio will send the text to its connected phone/PC by Bluetooth.

2.3. Receive text via U3 Radio

After establishing a Bluetooth connection, the text APP of mobile phone(or PC) will jump to a text transceiver interface. If the U3 radio has received a text, it can send it to its connected phone/PC. Then the phone/PC will show the text on its screen for users’ reading.

3. Application Scenarios

3.1. Scene 1:

 

3.1.1. Using the Text App software within at most 250 words, Phone A presses the sending button and sends the text to U3/U4 Radio A through bluetooth. 

3.1.2. Under direct mode operation, U3/U4 Radio A can send text to U3/U4 Radio B via working frequency.

3.1.3. U3/ U4 Radio B send the receiving text to Phone B through Bluetooth.

3.1.4. Phone B using the Text App software can receive the text sent by Phone A.

3.1.5. On the contrary, Phone B also can send the text to Phone A according to the above steps.

3.2. Scene 2:

 

3.2.1. Using the Text App software within at most 250 words, PC A presses the sending button and sends the text to U3/U4 Radio A through bluetooth.

3.2.2. Under direct mode operation, U3/U4 Radio A can send text to U3/U4 Radio B via working frequency.

3.2.3. U3/ U4 Radio B send the receiving text to PC B through Bluetooth.

3.2.4. PC B using the Text App software can receive the text sent by PC A.

3.2.5. On the contrary, PC B also can send the text to PC A according to the above steps.

3.3. Scene 3:

3.3.1. Using the Text App software within at most 250 words, PC A presses the sending button and sends the text to U3/U4 Radio A through bluetooth.

3.3.2. Under direct mode operation, U3/U4 Radio A can send text to U3/U4 Radio B via working frequency.

3.3.3. U3/ U4 Radio B send the receiving text to Phone A through Bluetooth.

3.3.4. Phone A using the Text App software can receive the text sent by PC A.

3.3.5. On the contrary, Phone A also can send the text to PC A according to the above steps.

4. Specifications

Item

Description

Wireless U3/U4 Data Transmission Modem

1. Operating frequency:30-88MHz/136-174MHz/330-520MHz

2. Channel spacing:12.5/25KHz

3. Transmit power:1~5Watt

4. Data transfer mode :Direct Mode Operation (DMO)

5. Data transmission interface: Bluetooth 4.0、USB 2.0 or better

6. Antenna terminal:SMA

7. Can transfer data via radio frequencies

8. Bluetooth specification:Class 2

9. Transmit data format:Text message(or file)

10. Transmission distance:

① Mobile phone/PC to radio:10m

② Radio to radio:5km(max)

11. System requirements:

① PC:Windows XP or better(vista、windows 7)

② Mobile phone:Android 4.0 or better

12. Application software: Point-to-point text editing software applications(Support using your own App)

 

Updatetime:2013/12/19 13:58:32    Hits:6800