The DBS signal, received from the DBS satellite (101), is converted to a DBS IF signal and detected whether the IF signal is in a multi-dwelling format or a normal format by tuning to an upper band of the IF signal.
The first downconverter circuit frequency downconverts the first RF input signal to a first IF signal which includes the multitude of first channels.
In an analog format, the reference signal is used by the modulator generating the IF signal to synchronize phase with the signals output by various other upconverters.
The present invention relates to a method a circuit for power amplification of an IF signal by means of a Gilbert mixer which is coupled to a power amplifier.
The apparatus includes a down-converter for demodulating the signal to an intermediate frequency signal.
The first downconverter may be configured to downconvert a received signal from a first antenna to an intermediate frequency to create an intermediate frequency signal.
The second downconverter may be configured to downconvert the phase-shifted intermediate frequency signal to create an output signal.
A passive mixer (100) for converting a radio frequency (RF) signal to an intermediary frequency (IF) signal or vice versa.
The filter (132) filters the intermediate frequency before applying it to the mixer (134).
Preferably, a second single sideband mixer accepts the high intermediate frequency signal and down converts this signal to a desired transmission or broadcast frequency.
Radio (RF) signals are received and downconverted to an intermediate frequency signal (IF).
Upon receiving the digital signal, the receiver heterodynes the digital signal with a local oscillator (LO) signal to produce an intermediate frequency (IF) signal.
A frequency inversion control means (32) inverts the low-frequency side of the intermediate frequency signal to the higher side of the frequency band and the high-frequency side to the lower side of the frequency band.
A frequency shift control means (31) shifts the frequency of the intermediate frequency signal to the higher side of the frequency band.
The intermediate frequency signal (IF) is sampled with a certain sampling rate and the sampled signal is digitized into a digital signal.
The down-converter includes an automatic gain control loop for maintaining the intermediate frequency signal at a predetermined power level.
The radar test system further couples the intermediate frequency signal to a power meter.
The power meter can be utilized to determine the power of the signal transmitted from the collision avoidance radar system.
The received signal strength indicator forms absolute values from an in-phase signal component and a quadrature signal component of a low or zero intermediate frequency signal that represents a received radio frequency signal.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Traduction Translation Traducción Übersetzung Tradução Traduzione Traducere Vertaling Tłumaczenie Mετάφραση Oversættelse Översättning Käännös Aistriúchán Traduzzjoni Prevajanje Vertimas Tõlge Preklad Fordítás Tulkojumi Превод Překlad Prijevod 翻訳 번역 翻译 Перевод