This is a extended post to our popular identify RF remote control article, this post will mainly focus on how to find your RF remote control’s carrier frequency in easiest way possible, there are several ways possible, we will start from the easiest. Search for official manuals This one is the easiest approach, because many …

There is a lot to say about RF remote control, for example, its design, circuit, quality and many more, while this guide mainly focus on one thing people ask all the time, which is how to choose RF remote control suitable for ourselves? First things first, we are talking about RF remote control, so we …

This operating distance field test is conducted during early 2013, using our 4 button long range remote control SR-TX-401 and matching new generation 2-channel receiver SR-RCS-202U, since the receiver module on SR-RCS-202U is also used by our one channel receiver SR-RCS-201U and four channel receiver SR-RCS-204U, so the operating distance should be same or similar …

One of our customers asked today – can you customize one of your long range remote control SR-TX-401-4F. I want  it to transmit in 868MHz. Please send me quotation, I want 10 samples for now. I would prefer the specifications be the same as in 433MHz. And here is reply from our sales department. Our …

Recently one of our customers asked the following question. Do you have or is it possible to make a UNI-Directional transmitter ( maybe a 30 degree transmit field ) with an approximate range of 25 meters? We would like to use this UNI-Directional transmitter with SR-RCS-202U receiver, that we currently purchase. Our application is for …

Overview – Typical RF Remote Control PCB Layout A typical RF remote control’s PCB is comprised of many electronic components, such as SAW resonator which controls the transmitting frequency and encoder IC which encodes the transmitting data. The typical inner photo of RF remote control is listed as follows.   Identify Operating Frequency There are …

Unlike ordinary ASK or OOK transmitter, which only has one frequency, also known as frequency where peak transmitting power is achieved. FSK transmitter has two frequencies, one lower frequency and one slightly higher frequency. In hardware programming such as Si4010 chip, the frequency set is actually the higher frequency – not the center frequency, which …

Today since many transmitting frequencies are standardized in most countries, and some frequency such as 433.92MHz and 315MHz are very popular in most countries, while this is a good thing about standardization, but it also means you will more likely to experience signal interference. Signal interference may happen in some countries where 433.92MHz is used …

Basically the most common seens batteries used in RF remote control are two types, alkaline battery and lithium battery, and there are two types of alkaline battery, one larger battery that is 12V 23A and the other smaller battery which is 12V 27A. if you’re using lithium battery, commonly we use one CR2032 coin battery …