Reviews Rf Receiver 315mhz

2PCS 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier Broadband Module Receiver for Signal Generator

0.1-2000MHz RF Wide Band Amplifier ；Used for Short wave, FM radio, remote control receiver, such as cable TV signal amplifier need low noise rf....
High Gain Low Noise LNA Amplifier； This product with wide frequency range, high gain, low noise figure.
It's low in properties can be a perfect match various circuits as ideal amplifier buffer amplifiers..

...one channel for garage door controller unit, the other for entry lights. Easy programming & easy to use DIP switches working mode selection between pulse / momentary, hold / toggle and latching mode..
ENCLOSURE # Designed to work both indoor and outdoor, default enclosure supplied protects the inner radio receiver circuit board safe from rain or other tough weather, while customer can also use chemical glue or epoxy adhesive to seal the wiring holes after setup, providing IP55 equivalent waterproof protection level. Mounting holes are provided for easy installation to walls etc using screws..
INTERFACE # 3-Level efficient switching power supply system. Our 202U receiver board accepts 12 volts – 24 volts AC or DC wide supply voltage range (min. current rating is [email protected] DC). Each relay can switch up to 10A @14V DC or 10A @125V AC for resistive load (6A @14VDC for inductive load). Built-in small DC motor / solenoid polarity reversing control capability by using interlock latching mode and both relays..
APPLICATIONS # Used in anti-theft alarm control panels, home automation systems, short and long range turn devices on / off wirelessly, lifts, boats, marine, winches, motor-driven curtain, roller blinds, overhead garage doo....

... 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.

【Easy & Convenience】 We have made transmitter and receiver working together and test it before ship it,when you get it don’t need to do anything ,just install it..
【Application】Suitable for electric control circuits of remote control electric doors and windows, signal control, industrial control, lifting equipment,12V batterys, power switch for low voltage DC power sources, dc LED lighting and low voltage power systems and a wide variety of 12 volt equipment. Ideal for direct control of various loads.
【SIGNAL Stability】the RF remote control adopts RF technology, stable signal. Signal of the wireless RF switch can pass through walls, floors and doors, steadily control receiver from any place within a reliable distance, Max range is up to 20–50meters with no obstacle..
we send latched mode default ( that is, Press the button “on” , the receiver relay is ON.
Press the button “off”, the receiver relay is OFF ). You can switch to different modes as needed，Latched/Momentary / Toggle / 5 seconds delay (If you encounter any problems in use, please feel free to contact us any time, we will be happy to serve you, thank you very much ).

...source impedance, the SSB noise figure of the mixer is 10.3dB at 70MHz. Different from the passive mixer, there is no insertion loss, no need external duplex device, and no need passive termination for AD831..
APPLICATION-- The AD831 is a low distortion, wide dynamic range, single chip mixer, suitable for HF and VHF Receiver RF-IF frequency, second mixer in DMR base station, DC-baseband conversion, quadrature modulation and demodulation, and ultrasound imaging, frequency shift detection and other applications..
FEATURE-- The AD831 has provide +24 dBm third-order intermodulation intercept point, realization of -10 dBm LO power, without the need for a high power LO drive..

100 Selectable frequencies on each channel, up to 20 sets can be used at the same time.
Automatic frequency scanning to find and set the most clear channel, avoiding dropout..
Automatic transmitter setup, the channel of the transmitter and receiver can easily synchronize.
Backlit LCD display showing RF level, AF level, Channel Frequency and mute status.
Range: Up to 400 feet ( 120 meters ). Frequency: 530Mhz - 580Mhz ( Adjustable ).

Each button is independently compatible and programmable to Security+ 2.0 Tri-Band (310/315/390 MHz), Security+ 315 MHz or Security+ 390 MHz..
Compatible with all LiftMaster Garage Door Openers manufactured since January 1993, and all 315MHz Security+ LiftMaster and Elite Series Gate Operators..

» Remove interference above 600 MHz(CH36) that are coming from Cell Towers, Cell phones or other RF sources, purifying HDTV signals.
» Perfect fix for old pre-amps have bands across over 700 MHz (CH51), install this between antenna and pre-amp input, reducing chances of overload due to adjacent band (4G LTE, 5G).
» Cleaning unwanted RF signal out of HDTV antenna system effectively, thus improve receiver SN level and better image quality.
» F type Female to Male connectors can be connected to Pre-amp directly or just plug in TV if no Pre-amp is installed, Extra F connector included to be adapted to F female ends, easy to install..
» **Notice**: This item will NOT work if Interference signal is within 0-700 Mhz or weak signal is not caused by interference. Confirm root cause of weak signal before buying this item.

UPGRADE KIT: The receiver & remote kit is for openers that still work but need a new remote because the old one is lost or doesn't work anymore. Plug the garage door opener into the 120v receiver & connect via two wires and then program the remotes..
MAKES OUR REMOTES UNIVERSAL & COMPATIBLE WITH ANY GARAGE DOOR OPENER: The receiver and 2 button remote use secure multi bit code technology and 315 MHz frequency band to safely work with most home garage door opener brands and models..
COMPATIBLE TO WORK WITH HOMELINK: Upgrade your existing garage door opener to work with the HomeLink system in your car. Use the instructions for the receiver & remote controls to easily get your HomeLink buttons working with your garage door opener..
A COMPLETE KIT: 120v Plug-In Receiver, One Marantec 2-Button Remote, visor clips for the car, key ring attachments, 3 volt lithium battery, Marantec Program Connectors & instructions. Compatible with remote models M3-2312, M3-2314, M3-3313..
MAKES YOUR GARAGE DOOR OPENER WORK WITH KEYLESS ENTRY KEYPADS: Also connects to Marantec Wireless Keyless Entry System (model M3-631) and other brands wireless keyless entry systems. 1 year limited parts warranty included..