DRA818V 144MHz 145MHz 146MHz 154MHz 174MHz VHF HAM Radio Module Amateur Radio

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DRA818V 144MHz 145MHz 146MHz 154MHz 174MHz VHF HAM Radio Module Amateur Radio
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Product Introduction
- Frequency Range: 134~174MHz
- Tx/Rx frequency independent
- Channel space: 12.5KHz
- Configurable multi-channels
- Sensitivity: -122dBm
- Output power: +27/30dBm
- CTCSS / CDCSS codes
- 8 volume levels
- 8 squelch levels
- UART interface
- Temperature: -20°C ~+70°C
- TX current: 450/750mA
- Supply voltage: 3.3~4.5V
DRA818V is a type of compact wireless voice transceiver module based on RFIC RDA1846 and works in VHF band. It integrates high speed microcontroller, high performance wireless transceiver IC, high power PA, audio process and squelching circuits. It provides standard UART interface which users can easily configure appropriate parameters for different applications. Users can easily construct a walkie-talkie system by connecting microphone, audio PA and speaker.
Some parameters of DRA818V modules can be changed by following the commands in this section, which provide flexibility for designers to optimize related parameters to achieve the best performance. DRA818V modules use standard UART interface to communicate with microcontrollers or other hosts. The default data format is: 8 data bits, 1 stop bit, no parity and 9600 kbps data rate.
DRA818V and DRA818U are based on RDA1846. Comparing to DRA808M based on RDA1845, CDCSS and audio control AT command are added, which provides more flexibility for the users who need to process audio signal more precisely. DRA818V is the VHF band version of DRA818U. From the field testing results, the RFIC on module should automatically filter the frequencies below 300Hz no mater Highpass filter is enabled or not so please pay attention to it if the applications need low frequencies.
Package includes:
1PCS 144MHz 145MHz 146MHz 154MHz 174MHz VHF HAM Radio Module Amateur Radio DRA818V
Payment
Shipping
Refund
Payment
We accept PayPal only.
But we only
Accept
your
Ebay Address
,Please Make sure it's 100% right.
Payment must be received in 5 business days of auction closing.
Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.
Shipping
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
Refund
All package need to
wait 30 days
(US only n
eed 7-10 days)
,
Please take care it.Less than 30 days,we can't take a refund
.
If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
Home
Electronic Component
Chips
Sensor
Arduino Module
Raspberry Pi
DRA818V 144MHz 145MHz 146MHz 154MHz 174MHz VHF HAM Radio Module Amateur Radio
Product Introduction
- Frequency Range: 134~174MHz
- Tx/Rx frequency independent
- Channel space: 12.5KHz
- Configurable multi-channels
- Sensitivity: -122dBm
- Output power: +27/30dBm
- CTCSS / CDCSS codes
- 8 volume levels
- 8 squelch levels
- UART interface
- Temperature: -20°C ~+70°C
- TX current: 450/750mA
- Supply voltage: 3.3~4.5V
DRA818V is a type of compact wireless voice transceiver module based on RFIC RDA1846 and works in VHF band. It integrates high speed microcontroller, high performance wireless transceiver IC, high power PA, audio process and squelching circuits. It provides standard UART interface which users can easily configure appropriate parameters for different applications. Users can easily construct a walkie-talkie system by connecting microphone, audio PA and speaker.
Some parameters of DRA818V modules can be changed by following the commands in this section, which provide flexibility for designers to optimize related parameters to achieve the best performance. DRA818V modules use standard UART interface to communicate with microcontrollers or other hosts. The default data format is: 8 data bits, 1 stop bit, no parity and 9600 kbps data rate.
DRA818V and DRA818U are based on RDA1846. Comparing to DRA808M based on RDA1845, CDCSS and audio control AT command are added, which provides more flexibility for the users who need to process audio signal more precisely. DRA818V is the VHF band version of DRA818U. From the field testing results, the RFIC on module should automatically filter the frequencies below 300Hz no mater Highpass filter is enabled or not so please pay attention to it if the applications need low frequencies.
Package includes:
1PCS 144MHz 145MHz 146MHz 154MHz 174MHz VHF HAM Radio Module Amateur Radio DRA818V
Payment
Shipping
Refund
Payment
We accept PayPal only.
But we only
Accept
your
Ebay Address
,Please Make sure it's 100% right.
Payment must be received in 5 business days of auction closing.
Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.
Shipping
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
Refund
All package need to
wait 30 days
(US only n
eed 7-10 days)
,
Please take care it.Less than 30 days,we can't take a refund
.
If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.