| Spécification | Valeur |
|---|---|
| Hign-concerned Chemical | None |
| Output Power(w) | 0.5w-3w |
| Battery Capacity(mAh) | 2000 |
| Waterproof / Water-Resistant | No |
| Frequency Range | 134-174MHz |
| Model Number | SA818-V |
| Walkie Talkie Type | Repeater |
| Is_Display | No |
| Maximum Range | 1.5km-3km |
| Brand Name | G-NiceRF |
| Origin | Mainland China |
| Certification | None |
| is_customized | Yes |
| UHF band frequency | 400~480 MHZ |
| VHF band frequency | 134~174 MHZ |
| Band width | 12.5 / 25 KHz |
| Output power up to | 1W |
| Distance up to | 4-5km in open area |
| Sensitivity | -124 dBm |
2-Pack SA818S-V 1W 30dBm VHF Band (134-174MHz) Half-Duplex Transceiver Module
Key Features:
- Package includes 2 SA818S-V modules (134MHz-174MHz frequency range)
- Backward compatible with previous SA818 models
- Available in 400-480MHz UHF version (please specify when ordering)
Product Overview
The SA818S represents an economical yet professional-grade integrated two-way radio module. It incorporates a high-speed microcontroller, premium RF transceiver chip, and power amplifier. Featuring a standard serial interface, this module allows for straightforward configuration of operational parameters and transmission control.
With the addition of an audio amplifier, microphone, and speaker, this compact module transforms into a fully functional portable radio. Its streamlined interface and miniature form factor make it ideal for integration into various handheld devices, enhancing their communication capabilities. Manufactured using lead-free processes, the SA818S complies with RoHS and Reach environmental standards.
The enhanced SA818S version includes an improved LNA circuit, boosting sensitivity by 4dBm compared to its predecessor. It maintains consistent power output (within 1dB variation) across its entire 400-470MHz frequency range, with precise low-power control (27dBm±1dBm). Note: This module maintains full hardware and software compatibility with earlier versions.
Technical Specifications
- Frequency Bands: UHF (400-480MHz), VHF (134-174MHz), or 320-400MHz (selectable)
- Independent Configuration: Separate settings for transmit/receive frequencies and CTCSS/CDCSS codes
- Channel Bandwidth: 12.5KHz or 25KHz options
- Transmit Power: Maximum 1W output
- Operating Range: 4-5km in open environments
- Receiver Sensitivity: -124dBm
- Compact Design: Highly integrated, space-efficient package
- Tone Options: 38 CTCSS tones and 166 CDCSS codes
- Squelch Control: 8 adjustable levels
- Audio Control: 8-step volume adjustment
- Power Options: Selectable high/low power modes (500mW/1W)
- Voltage Range: Operates from 3-5.5V
- Frequency Stability: 1ppm TCXO crystal oscillator
Typical Applications
- Compact portable radio systems
- Discreet communication devices
- Audio monitoring solutions
- Outdoor recreational equipment
Technical Documentation
Internal Block Diagram
Detailed Specifications
Circuit Schematic
Pin Configuration
Physical Dimensions
We accept: VISA, MasterCard, and Escrow payment services
- Packaging: All items ship in protective yellow cartons
- Shipping Options: Free standard shipping via China Post Registered Air Mail. Expedited services (DHL, FedEx, Aramax, EMS) available – please contact us for arrangements. Orders typically ship within 3-5 business days after payment confirmation.
- Delivery times may vary due to customs processing in different countries
- Contact us if your order hasn’t arrived within 60 business days (10 weeks)
- Buyers are responsible for any import duties, taxes, or customs fees
- Shipping costs are non-refundable for refused shipments
5 reviews for « Powerful VHF Walkie-Talkie module »
Only logged in customers who have purchased this product may leave a review.
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Customer –
Voici votre traduction en anglais avec une mise en forme professionnelle :
Customer Review:
I am very satisfied with my purchase! The product is exactly as described and arrived quickly. The quality is excellent and I would definitely recommend this shop to others.
Customer –
When placing the order, I wrote to the seller to send the UHF & VHF module. However, only the VHF was sent. I haven’t checked it at work yet.
Customer –
Customer Review:
When placing the order, I wrote to the seller to send the module UHF & VHF. So No sent all VHF. I haven’t checked in at work yet.
Customer –
excellent 👌
Customer –