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.
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.
SR-FRS-4W (VHF:136MHz-174MHz and UHF: 400MHz-470MHz) 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. Users only need to connect external audio amplifiers, microphone or speaker with this module, then it can work as a small walkie talkie. Simplified interface and ultra-small size make this module into a wide range of applications, also can conveniently embed into various handheld devices to improve the comprehensive performance of end products.
Besides the excellent voice intercom, the more important feature is this module has the data/SMS transfer ability; up to 80 bytes can be sent at one time; it is compliance with the standard UART transfer protocol.
FM demodulation technique Based on digital signal processing technology.
Frequency Range are VHF:136MHz-174MHz and UHF: 400MHz-470MHz:
Frequency step：5K/6.25K/12.5K/25K.
RF Output Power： 4W/1W
voice encryption (scrambling): 8 types.
Voice Compression- Expansion.
SMS Receive /Transformer，The wireless Baut: 1200.
CTCSS（38 group）+ CDCSS（83 group）.
Automatic elimination tail.
Volume adjustable（1-9）.
Vox level adjustable（0-8）.
SQ level adjustable（0-9）.
MIC sensitivity level adjustable（1-8）
The ultra-low power dissipation in Sleep Mode（0.1uA）.
Power supply ：DC 3.3～5.0V
Size：60 X 90 MM
Communication distance more than 7KM at open area
portable intercom and paging systems.
wireless data transmission.
mobile phones and other embedded in radio functions product.
Portable walkie-talkie,
Outdoor sports equipment,
Building security,
Audio monitor system
Module pin function define
|
NAME |
NO. |
comment |
|
MIC_IN |
1 |
MIC input |
|
NC |
2 |
NC |
|
VCC |
3 |
DC powe : 3.3-5V, recommend: 4V. |
|
GND |
4 |
GND |
|
PTT |
5 |
1: receive; 0: transmite |
|
TXD |
6 |
TXD for UART |
|
RXD |
7 |
RXD for UART |
|
SQ |
8 |
Squelch control 0: active 1: inactive
|
|
NC |
9 |
NC |
|
PDN |
10 |
Module power enable， 0=SLEEP ； 1= Working; It must be set high level when working; |
|
AF_OUT |
11 |
Audio output |
|
P00 |
12 |
Program port |
|
GND |
13 |
GND |
|
H/L |
14 |
RF Power select: NC: 4W 0: 1W It do not be connected to a high level. |
|
P01 |
15 |
Program port |
|
GND |
16 |
GND |
Reference: DWM23050402
SR_T300 module is perfect for children toy walkie talkie and other short distance intercom application case. Only an external antenna, battery, speaker, microphone needed for combine a completed toy walkie talkie.
Reference: DWM22101302
433MHz 8W amplifier Board is high Efficiency for data transmission, flight control, extended range RF power amplification.
Reference: DWM23071001
SR-DEMO-A demo board is a full function Walkie Talkie Transceiver system which can be used for News version Enhance module SR105V,SR105U,SR110V,SR110U and SR350P.
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: 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: DWM22101301
D5W 76-108MHz 500mW FM radio Transmitter-2000m long distance FM transmitter with digital display.
Reference: DWM23051801
The DWM-E6-M is working at 640MHz~670MHz a full duplex multi-channel digital walkie talkie.which has high receiver sensitivity, low power consumption, energy saving and environmental protection, and is suitable for a variety of full duplex use scenarios.
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: DWM14071901
DWM-SA818 V band,134 -- 174MHz, U band, 400 -- 480MHz,3.5-5Km communication distance high-integrated Embedded walkie talkie 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: DWM23051301
SA868 is a cost-effective integrated professional walkie-talkie module which include UHF band 400~480 MHz, 320-400MHz and VHF band 134~174 MHz 3 frequency bands versions built-in high-speed microcontroller, high-performance RF transceiver chip and RF power amplifier.
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.
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: DWM18012601
FRS-DEMO-A demo board is a full function Walkie Talkie Transceiver system which can be used for these module evaluation SR-FRS-1WU,SR-FRS-1WV,SR-FRS-2WU.
Reference: DWM22091202
SR-FRS-2WUS 400MHz-470MHz 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.
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.
