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SA818S Walkie Talkie Module UHF 400-470MHz VHF 134-174MHz Radio Module Amateur

Overview
SA818S is a cost-effective integrated professional walkie-talkie module with a built-in high-speed microcontroller, high-performance RF transceiver chip and RF amplifier, and provides a standard serial port to communicate with the module, so that it is easy to set up the module's relevant parameters and control the transceiver function. Users only need to external audio amplifier, microphone, speaker on this module, can work as a small walkie-talkie. Simplified interface and ultra-small size make this module widely used, and it can be easily and quickly embedded into various handheld devices to improve the comprehensive performance of terminal products. SA818S walkie-talkie module adds LNA circuit on the basis of SA818, and the sensitivity is increased by 4dBm. 400-470MHz whole frequency range, the power output fluctuation is less than 1dB, and the low-power can do 400-470MHz 27dBm+/-1dBm error. Note: The hardware and software interfaces are the same as the previous ones and are compatible with each other.
 
Features
1.This SA818S intercom module built-in high-speed microcontroller, high-performance RF transceiver chip and RF amplifier, is a cost-effective integrated professional intercom module.
2. Simplified interface and ultra-small size makes this module can be widely used, also can be easily and quickly embedded into various handheld devices.
3.SA818S walkie-talkie module adds LNA circuit on the basis of SA818, and the sensitivity is increased by 4dBm.
4. Low power consumption, 400-470MHz frequency range, power output fluctuation is less than 1dB, low power can do 400-470MHz 27dBm+/-1dBm error.
5. High reception sensitivity, with high reception sensitivity, able to receive signals at a longer distance.
 
Specification
UHF band: 400~480 MHz
VHF band: 134~174 MHz
Transmitter and receiver frequencies are independent
Bandwidth: 12.5KHz / 25KHz
RSSI signal strength indication
Open field transmission distance: 4-5 kilometers
High receiver sensitivity: -124 dBm
Highly integrated small footprint
38 levels of CTCSS analog subaudio codes
166 levels of forward and inverted CDCSS digital subaudible audio
8 levels of squelch
8 levels of adjustable volume
High power 1W (@CE, 800mW), low power 500mW
Wide range of operating voltage 3.3-5.5 V
Built-in EEPROM, power-down data storage
Adopt 1ppm TCXO crystal, stable performance.
 
Applications
Compact walkie-talkie
Wireless intercom system
Building community security system
Outdoor sports products
Audio listening system
 
List
1 x Module

1.We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.

2.Orders will be processed instantly and dispatched within 1-2 business days except hoilday, so we do NOT accept any email/message note after you place orders.

3.All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.

1.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.

2.Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly.

1.We accept PayPal payment ONLY, and must be received within 5 days from the date of purchase.

2. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances.

3.Buyers are responsible for import duties,custom fees and taxes, if any, please check your country.

 

1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

2. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund or resend the item to you after the returned item arrived at our warehouse.

3. Please include your eBay ID and item number with any email requests.

 

1. If you have any questions, please feel free to email our service specialists.

2.Just contact us using the " Ask the seller a question" link on eBay.

3.Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem.

SA818S Walkie Talkie Module UHF 400-470MHz VHF 134-174MHz Radio Module Amateur
Overview
SA818S is a cost-effective integrated professional walkie-talkie module with a built-in high-speed microcontroller, high-performance RF transceiver chip and RF amplifier, and provides a standard serial port to communicate with the module, so that it is easy to set up the module's relevant parameters and control the transceiver function. Users only need to external audio amplifier, microphone, speaker on this module, can work as a small walkie-talkie. Simplified interface and ultra-small size make this module widely used, and it can be easily and quickly embedded into various handheld devices to improve the comprehensive performance of terminal products. SA818S walkie-talkie module adds LNA circuit on the basis of SA818, and the sensitivity is increased by 4dBm. 400-470MHz whole frequency range, the power output fluctuation is less than 1dB, and the low-power can do 400-470MHz 27dBm+/-1dBm error. Note: The hardware and software interfaces are the same as the previous ones and are compatible with each other.
 
Features
1.This SA818S intercom module built-in high-speed microcontroller, high-performance RF transceiver chip and RF amplifier, is a cost-effective integrated professional intercom module.
2. Simplified interface and ultra-small size makes this module can be widely used, also can be easily and quickly embedded into various handheld devices.
3.SA818S walkie-talkie module adds LNA circuit on the basis of SA818, and the sensitivity is increased by 4dBm.
4. Low power consumption, 400-470MHz frequency range, power output fluctuation is less than 1dB, low power can do 400-470MHz 27dBm+/-1dBm error.
5. High reception sensitivity, with high reception sensitivity, able to receive signals at a longer distance.
 
Specification
UHF band: 400~480 MHz
VHF band: 134~174 MHz
Transmitter and receiver frequencies are independent
Bandwidth: 12.5KHz / 25KHz
RSSI signal strength indication
Open field transmission distance: 4-5 kilometers
High receiver sensitivity: -124 dBm
Highly integrated small footprint
38 levels of CTCSS analog subaudio codes
166 levels of forward and inverted CDCSS digital subaudible audio
8 levels of squelch
8 levels of adjustable volume
High power 1W (@CE, 800mW), low power 500mW
Wide range of operating voltage 3.3-5.5 V
Built-in EEPROM, power-down data storage
Adopt 1ppm TCXO crystal, stable performance.
 
Applications
Compact walkie-talkie
Wireless intercom system
Building community security system
Outdoor sports products
Audio listening system
 
List
1 x Module

1.We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.

2.Orders will be processed instantly and dispatched within 1-2 business days except hoilday, so we do NOT accept any email/message note after you place orders.

3.All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.

1.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.

2.Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly.

1.We accept PayPal payment ONLY, and must be received within 5 days from the date of purchase.

2. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances.

3.Buyers are responsible for import duties,custom fees and taxes, if any, please check your country.

 

1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

2. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund or resend the item to you after the returned item arrived at our warehouse.

3. Please include your eBay ID and item number with any email requests.

 

1. If you have any questions, please feel free to email our service specialists.

2.Just contact us using the " Ask the seller a question" link on eBay.

3.Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem.

Am 16.11.2024 hat der Verkäufer die folgenden Angaben hinzugefügt:

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