Reference: DWM14042301
Spring antenna is specialized for wireless data transmission. This antenna with good performance of V.S.W.R, small size design, easily installation, stable performance and good anti-shock and anti-aged compatible for Hoperf Modules.
Reference: DWM14032902
SMA rf antenna connector is pallets copper gold andexternal thread needle sma pallets plate rf connector.
Reference: DWM14032102
Whip antenna for sub-1 GHz, 433MHz,868MHz and 915MHz with SMA male connectors.it's used with wireless module recommanded by Hoperf .
Reference: DWM14042401
SMA RG178 extension female cable for GPS, GSM antenna,RF module, SMA cable,IPEX to SMA jumper cable.
Reference: DWM18032302
USD3.0/pcs MOQ100pcs LoRa Antenna designed for Lora application which required for outdoor waterproof highgain and work at ISM free band like 433MHz /868MHz /915MHz SMA Male Whip antenna.
Reference: DWM16121503
DWM-TLB-3.0QB SUB-1GHz / 2.4GHz Whip antenna with a Collapsible SMA male connectors.Which are available for 433MHz,868MHz.915MHz and 2.4GHz..
Reference: DWM17111002
LoRa Antenna-433MHz High Gain internal aerial piamater FPC Antenna with IPEX connctor.
Reference: DWM15101001
Brand: Semtech
RFM50 module series’ design is based on the high performance RF50 SoC chip, It include a CIP-51 core‘ MCU and 100mW transceiver. It operate at 433/470/868/915 MHz ISM band, comply with FCC, ETSI regulation.
SR120U-UHF is a enhance version of the SR-FRS-2WU is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
SR120U-UHF(SR_FRS_2WU) is a wireless voice intercom and data transmission module with extremely high cost performance. It integrates a high-performance RF transceiver chip, microcontroller, and RF power amplifier. The external controller can set the working parameters of the module and control the transmission and reception of the entire module through a standard asynchronous serial interface (RS232). This module only needs to be connected to an antenna, microphone and audio power amplifier to form a complete walkie-talkie or data transmission radio.
- Digital signal processing based frequency modulation and demodulation technology
- Frequency range: 400MHz~470MHz
- Selectable frequency stepping: 5K/6.25K/12.5K/25K
- 3 selectable RF output power: High power 2W, Medium power 1W, Low power 0.5W
- Voice encryption (scrambler) function: (8 options)
- Short message SMS transmission and reception
- Built-in CTCSS (38 groups) and CDCSS (83 groups) encoder/decoder
- Automatic tail elimination
- Digital volume adjustment: (1-8 levels) adjustable
- Voice control handsfree trigger sensitivity: (0-8 levels) adjustable
- Noise suppression level: (0-9 levels) adjustable
- MIC sensitivity adjustment: (1-8 levels)
- High receiving sensitivity: -122dBm
- Ultra low power consumption (sleep mode): (0.1uA)
- Operating voltage range: 3.3V~5.0V, recommended 3.7V-4.5V
- Ultra compact size: 17*28.5*3.0mm
- Reference communication distance: 3-5 km in open area; actual distance depends on many factors.
Applications:
1. Portable walkie talkie and paging systems
2. Wireless data transmission (SMS) systems
3. New designs with embedded walkie talkie functionality in mobile phones and other products
| Pin Number | Pin Name | Function Description | Notes |
| 1 | NC | Programming pin (I/O) | Do not connect |
| 2 | NC | Programming pin (I/O) | Do not connect |
| 3 | NC | Programming pin (I/O) | Do not connect |
| 4 | AF | Audio output | |
| 5 | MIC | Microphone input | |
6 |
HML | RF high/medium/low power control; GND for low power 0.5W, float for high power 2W, 1.5V input for medium power 1W; | Currently only supports 2W/0.5W software configuration |
| 7 | ANT | RF input/output | |
| 8 | GND | GND | |
| 9 | GND | GND | |
| 10 | VBAT | Power supply positive 3.3V-5V | Recommended 3.6-4.3V |
| 11 | TX | Voice control handsfree trigger indicator output, high: triggered; low: no trigger | |
12 |
RXD | Asynchronous serial interface (receive data) Note: For MCU control applications, this pin must be pulled up externally. |
If RXD is pulled low for over 50ms, it will enter production test mode. |
| 13 | PTT | Transmit/receive control pin, 1=receive, 0=transmit | |
| 14 | SPK | Noise suppression control output, active low | |
| 15 | TXD | Asynchronous serial interface (transmit data) | |
| 16 | PD | Module sleep enable pin, 0=SLEEP | Module can only work when connected to high level |
| 17 | +3V | Module +3V output, for small external current use (<5mA) | Do not connect large load |
| 18 | GND | GND |
Useful Link:
Reference: DWM23050301
SR105U (UHF:400M-480MHZ) which functions have been enhanced and pinouts/commands are compatible with FRS-0W5U is an ultra-compact and high-cost performance wireless voice intercom and long-distance data transmission module.
Reference: DWM23070501
SR105V (VHF:136M-174MHZ) which functions have been enhanced and pinouts/commands are compatible with FRS-0W5V is an ultra-compact and high-cost performance wireless voice intercom and long-distance data transmission module.
Reference: DWM23070502
SR110V-VHF is a enhance version of the SR-FRS-1WV is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
Reference: DWM23082802
SR120UV-VHF is a enhance version of the SR-FRS-2WV is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
Reference: DWM23070502
SR110V-VHF is a enhance version of the SR-FRS-1WV is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
Reference: DWM22083001
SI4732-Radio-ESP32-2.8 inch TFT Touchscreen-Arduino Si4732 chip all Band Radio DSP Receiver FM LW SSB 2.8 inch Big Touch Screen PAM8406 HiFi Headphone Amp.
Reference: DWM22091203
SR-FRS-0W5 (VHF:136M-174MHZ) is a low cost but high-performance integrated walkie talkie module. With built-in high performance micro controller, narrow band rf transceiver and standard Uart interface, it can be easily used and succeed in all the walkie talkie function with good quality voice and long-distance transmission.
Reference: DWM23051501
TMK01-M/02-M/04-M is a multi-party call intercom module. it LoRa technology, has high receiving sensitivity, is energy-saving and environmentally friendly, and can be specially used for secondary system integration and secondary development to support all intercom functions.
Reference: DWM22091201
SR-FRS-2WVS 136M-174MHz is 2W a low cost but high-performance integrated walkie talkie module. With built-in high performance micro controller, narrow band rf transceiver and standard Uart interface.
Reference: DWM22091601
SR-FRS-4W (VHF:136MHz-174MHz and UHF: 400MHz-470MHz) is a low cost but high-performance integrated walkie talkie module max power output is 4W. With built-in high performance micro controller, narrow band Rf transceiver.
Reference: DWM22101301
D5W 76-108MHz 500mW FM radio Transmitter-2000m long distance FM transmitter with digital display.
Reference: DWM22100201
Microhard P900 - Miniature Mesh 1W 900 MHz Wireless Modem use for Utility Meters, Remote Telemetry, Electric, Oil, and Gas Sensors/Detection.
Reference: DWM23070503
SR110U-UHF is a enhance version of the SR-FRS-1WU is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
Reference: DWM18012501
SR-FRS-1WV 136MHz-174MHz 1W VHF Analog walkie talkie module easy to use can be embed into various handheld devices, to improve the comprehensive performance of end products.
Reference: DWM18012602
FRS-DEMO-B UHF/ VHF Walkie Talkie transceiver and Data transfer demo board which can be used for these module evaluation SR-FRS-1WU,SR-FRS-1WV,SR-FRS-2WU.
Reference: DWM15121801
2sets Sa828 All-in-oneV band,134 -- 174MHz, U band, 400 -- 480MHz,3.5-5Km communication distance Walkie Talkie Voice Module for Pocket /handheld devices tytera radios /trunking radio module. .
Reference: DWM23082802
SR120UV-VHF is a enhance version of the SR-FRS-2WV is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
Reference: DWM14071901
DWM-SA818 V band,134 -- 174MHz, U band, 400 -- 480MHz,3.5-5Km communication distance high-integrated Embedded walkie talkie module.
Reference: DWM23052401
SR-T500S module is specially used for children's walkie-talkies and other low-cost walkie-talkie applications with High reception sensitivity, easily achieve 400m-500m walkie-talkie distance features.
Reference: DWM22091204
SR-FRS-0W5U (UHF:400M-480MHZ) is a low cost but high-performance integrated walkie talkie module. With built-in high performance micro controller, narrow band rf transceiver and standard Uart interface, it can be easily used and succeed in all the walkie talkie function with good quality voice and long-distance transmission.
SR120U-UHF is a enhance version of the SR-FRS-2WU is wireless voice and data transmission walkie talkie module which built-in with a high performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier.
