Best Internal Modulation Transmitter

ACEIRMC Digital 38khz Ir Receiver Ir Transmitter Sensor Module Kit for Arduino Electronic Building DIY ， Pack of 6 Sets

This ir transmitter sensor module is directly launched by a single tube, it requires waveform modulation through the program..
It is suitable for infrared communication, infrared remote control, apply to a variety of platforms including for Arduino/51/AVR/ARM.
With signal indicating LED, easy to observe and debug..
Pin Definitions: (1) Output (2) Vcc (3) GND.
IR Infrared Transmitter Module Ir Digital 38khz Infrared Receiver Sensor Module For Arduino Electronic Building Block.

Rockville RWM81U Dual Wireless UHF Headset Microphone System. High performance wireless headset microphone system. Includes transmitter with two high sensitivity, unidirectional, wireless, cardioid headset microphones..
Featuring a dual filter design to limit feedback and interference. Ultra signal stability eliminates unwanted distortion. Professional receiver with multifunction color displays shows frequency, signal synch, and audio input..
Transmitter automatically links to receiver for ease of use. Use any two mics (handheld or headset) at once. Individual microphone volume controls. Rugged metal housing. Comfortable ergonomic composite microphone construction..
Low power consumption for longer battery life. System:. . Operating Range: 300´– 400´(indoor), 250´ – 350´(outdoor). Channel: Two Channel. Frequency Range: 480-498MHz. Frequency Stability: ±0.005%. Modulation Mode: UHF..

[Latest version]:FM transmitter broadcasting system-has obtained FCC certification(FCC ID: 2AQIX-T15B).Use this equipment to establish a private broadcasting station or public place broadcasting system, just set the required channel in the middle of 87~108MHz, Transmission distance: (T6B-about 300-1500M / T15B about 3000M). Open ground up to (1.9-2.5 mi).
[Multiple audio sources and intelligent control]: It supports three connection modes: audio cable, U disk and Bluetooth to play music. The LCD display can easily change the frequency of the FM transmitter at any time. The adjusted parameters will be automatically stored. PC control: Connect to the computer through the Micro USB interface and support intelligent broadcasting software to realize diversified unattended broadcasting..
[Hi-Fi Stereo Audio and Stability]: Perfect stereo quality, mini FM transmitter can independently adjust the volume of music and microphone. The built-in PLL advanced modulation system makes the transmitter work stably..
[Excellent heat dissipation and durability]: Using high-quality aluminum alloy casing and radiator, the wireless stereo FM tran....

RockvilIe RWM1203VH Wireless (2) HandHeld Microphones 4 Church Sound Systems, Large display on receiver + digital display on each mic, Each mic is large and solid with a nice weighted feel, Improved high performance wireless handheld microphone capsule, Includes transmitter with two handheld, high sensitivity, unidirectional, wireless cardioid microphones, Featuring a dual filter design to limit feedback and interference.
Ultra signal stability eliminates unwanted distortion, Transmitter automatically links to receiver for ease of use, Use two handheld mics at once, Individual microphone volume controls, Low power consumption for longer battery life, System comes in 4 different frequency options. You can request a specific one in the notes A. 255.1/227.1 MHZ, B. 224.9/256.9 MHZ, C. 228.9/253.4 MHZ, D. 230.8/255.8 MHZ.
Specifications of RWM1203VH: System: Operating Range: 150 feet or more, Channel: Two Channel, Frequency Range: 210MHz - 270MHz, Frequency Response: 40Hz-18KHz, S/N.:>103dB (1KHz-A), Operating Temp: 14°F – 122°F, Oscillation Mode: Quartz Crystal, Frequency Stability: ±0.005%, Harmonic Radiation :< 63dBm.

【EXTRA LONG RANGE & CONTROL MULTIPLE DEVICES 】 – Wirelessly transmit more than 200 meters / 650ft extending your remote's reach without interference and being able to extend as many devices as you have, within the transmitting range of your infrared devices.
【PACKAGE INCLUDE & 1YEAR WARRANTY 】 1 x Transmitter, 1 x Receiver, 2 x Power Adapters, IR Receiver and Emitter Cables, Owner's Manual.Simple and convenient for you to achieve remote control, 1year manufacturer warranty, you can contact us with any questions.

transmitter keypad for restaurant pager system with built-in 1000mAh backup battery.
can be used for 4 hours without plug in the socket.
very suitable for outdoor work such as food truck.
Each pager has a built-in 300mAh battery.
The restaurant buzzer system uses FSK modulation technology.
working distance can reach 2624ft at the open area.
the wireless paging system can set different reminder modes according to different occasions.
restaurant paging system can meet the needs of different environments such as clinic.

This radio system uses low power electronic components and sensitive receiver chip. The RF modulation uses intermittent signal thus reducing even more power consumption.
2)Reliable, interference free 2.4GHz AFHDS 2A signal operation..
This radio system uses a high gain and high quality multi directional antenna, it covers the whole frequency band. Associated with a high sensitivity receiver, this radio system guarantees a jamming free long range radio transmission..
4).Associated with a High Sensitivity Receiver, This Radio System Guarantees a Jamming Free Long Range Radio Transmission Each Transmitter Has a Unique Id, When Binding with a Receiver, The Receiver Saves That Unique ID and Can Accepts Only Data From The Unique Transmitter..
Works in the frequency range of 2.405 to 2.475GHz.This band has been divided into 142 independent channels, each radio system uses 16 different channels and 160 different types of hopping algorith.

This FM stereo transmitter that can be used for factories, schools, supermarkets, farms, Office space or create your own radio station..
Equipment using advanced modulation system and built-in PLL frequency, audio pre-emphasis,limiter,and low-pass filter circuit..
The Control circuit board design and amplifier design to reduce noise, so sound quality is even better..
Well-shielded, compact structure, small size, generous appearance, plug and play, very easy to use..
It can easy broadcast anywhere you want,home,apartment,church, school,club,camping,backyard,resident village..