What is the formula for intermediate frequency?
➨The IF (Intermediate Frequency) is generated by mixing two frequencies viz. Input frequency (Fin1 or Fin2) and Local Oscillator frequency ( FLO1 or FLO2). ➨Fin1 and FLO1 are provided to RF Mixer to generate FIF1 as sum of these two frequencies during up conversion process.
What factors should be considered when selecting an intermediate frequency?
The selection of an intermediate frequency for a super-heterodyne receiver involves consideration of the signal frequency, the tuning range, the pass-band width, the minimizing of spurious responses, regeneration stability, and frequency stability.
Why is intermediate frequency required?
The main reason for using an intermediate frequency is to improve frequency selectivity. In communication circuits, a very common task is to separate out, or extract, signals or components of a signal that are close together in frequency. This is called filtering.
How do I know what frequency my phone is using?
For the Android phone, it could use the app: LTE Discovery, tap SIGNALS, check EARFCN(band number), ‘DL Freq and UL Freq’.
Why do we use intermediate frequency?
What radio frequency do cell phones use?
The actual frequencies used by smartphones varies by country and by carrier. In the United States, there are the four major frequency bands in use: 698-806 MHz (700 MHz Band) 806-849/851-896 MHz (800 MHz Band)
What is the intermediate frequency for FM radio?
Refer Upconverter vs Downconverter and RF Transceiver design to understand RF Up conversion and downconversion process. The intermediate frequency for AM receiver is 455 kHz and for FM receiver it is 10.7 MHz. Following are the benefits or advantages of Intermediate frequency.
What should the intermediate frequency be in an oscillator?
It generally ranges from 88 to 108 MHz (a 20 MHz span) and the Intermediate Frequency (IF) is chosen to be at 10.7 MHz (slightly higher than twice the range of 20 MHz).
Which is the best intermediate frequency calculator for down conversion?
The calculator#2 (for down conversion) above uses higher side local oscillator compare to RF (Radio Frequency). Following Intermediate Frequency formula or equations are used for this Intermediate Frequency calculator. Following is the list of useful converters and calculators.
How can you calculate the frequencies for each frequency?
20m band = 300 / 20 = 15.000 MHz, whereas the book suggests the frequency band falls between 14.000 – 14.350 MHz. (Clearly 15.000 MHz falls outside that range) 2m band = 300 / 2 = 150.000 MHz, whereas the book suggests the frequency band falls between 144.000 – 148.000 MHz.