SR_DEMO_B

Walkie Talkie Transceiver /Data transfer Module

Demo Board specification ( for 0.5W module)

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What you get:

• 1) One antenna for this demo board is included. it without speaker(1W/8OHM) and battery(Li_ion battery is recommend)

• 2) You can purchase a battery and speaker separately. They are not included to reduce shipping costs.

• 3) We will provide the technical support for both hardware and software, more than that, we can provide the demo code for your reference.

• 4) The cost is just for 1 pcs demo board;

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1. Specification for DEMO_B

FRS-DEMO-B is designed for Walkie Talkie transceiver module demo as below:

• SR_FRS_0W5U: 0.5W/400M-480M
• SR-FRS-1W350: 1W/350M-390M
• SR-FRS-1WU: 1W/400M-480M
• SR_FRS_1WV: 1W/136M-174M
• SR-FRS-2WU: 2W /400M-480M
• it can be used for voice intercom and data transfer demonstration; also it can be used for development based on the demo board;

it is easy to set all the module parameter via the USB interface; When select the channel, it would voice broadcast the current channel number; You may quickly evaluate our module performance by the demo board, Just make a little modify, it can be directly applied into your real production.

2. The demo board performance：

• The power switch, volume adjust, channel selection switch 3 in 1
• 16 channels can be selected by the encoder switch
• It is easy to switch the VOX (sound control transmit) by a VOX switch, the VOX level can be set via the PC
• Voice broadcast for the channel number, Chinese/English could be selected
• Monitor function by press [MON]key
• Voice intercom demo
• Data transfer demo
• One group user interface: SQ, LINE_IN, LINE_OUT, PTT, GND
• Could restore to the factory parameter setting

3. Parameter setting:

The demo board parameter can be set via the USB interface, for the setting instruction please contact us to get the 《SR_FRS_1W UART communication protocol》and《SR_FRS_0W5 UART communication protocol》

• Tx frequency, Rx frequency can be set alone
• Tx CTCSS, Rx CTCSS can be set alone
• Rf output power can be set by software
• Companding setting
• Transmit Busy lock setting
• Squelch level setting
• GBW bandwidth setting
• MIC sensitivity setting
• Scramble setting
• Volume setting
• VOX level setting
• TOT setting (timer of transmit)
• Auto power save setting
• Data transfer
• All setting can be kept when power off

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Notes:

1) for detail spec. please contact us.

2) the demo board is subject to be upgraded without notice;