RM4SH
RM4SH
RM4SH
com
A. Technical Specifications:
Reference Value Parameter Operating Voltage Quiescent Current Modulation Mode Frequency Receiving Sensitivity Decoder Code Types Code Mode Dimension(LWH) Soldering Fixed Code 41*24*8 mm AM 315/433 -101 PT2272M4/L4 MHz dbm Remarks Minimum DC Standard 5 5 Maximum V mA Units
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C. Product Specifications:
1. Applying SAW crystal oscillation overcomes easy frequency excursion of LC circuit, there are Latch mode and Momentary mode selectable, can be decoded with decoder. 2. 3. 4. 5. 6. 4 signal outputs and 8 bit addresse pins with the module, the address pins can produce 6561 non-repeated codes; Most parts of module are integrated inside the chip 3310A, no so many external components, stable and reliable performance, excellent anti-jamming ability; Built-in magnifying exchange makes the output data signal to be TTL and can be directly connected to decoder. Receiver module has wide operating voltage with factory setup of 5V and adjustable range between DC3V-DC6V in case of special requirement. Output of receiver module come with noise, also can be no noise in case of special requirement, but the receiving sensitivity will be reduced.
D. Notes:
1. Connect 50 ohm 1/4 of wavelength cable antenna (wavelength= light speed/frequency), around 23 cm for 315MHz before using. Pulling out the antenna and keeping it straight will bring best effect. 2. 3. Must make sure receiver module possesses stable voltage and good wave filtration because low voltage or wave form interference will shorten the receiving distance. To avoid affecting the receiving distance, the antenna should be pulled outside of metal shell, for the metal shell will shield, the receiving distance will be affected. Usually should avoid using two receiver modules at the same time, for the oscillation sources will interfere each other and the receiving distance will be shortened.
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