Matches 1 - 12 out of 12
Match Document Document Title
6785527 Conversion spur avoidance in a multi-conversion radio frequency receiver  
A method of avoiding conversion spurs in a multi-conversion radio frequency receiver having a first local oscillator, an intermediate frequency filter and a second local oscillator in series...
6611150 Leakage detector for use in combination with a signal level meter  
A leakage detector includes a receiver front end having an input for connection with an antenna and a signal path including circuitry for passing a signal from the input without amplification; an...
5640697 Wideband multiple conversion receiver system with means for avoiding receiver spurs by combined switching of multiple local oscillator frequencies  
A multiple conversion receiver system capable of avoiding receiver spurs by combined switching of multiple local oscillator frequencies, including combinations of high-side and low-side injection...
5633582 Combined signal level meter and leakage detector  
A combined signal level meter and leakage detector having a built-in antenna for the leakage detector, and dual clock frequency control of the microcontroller along with bandwidth switching for...
5542114 Radio receiver for suppressing frequency drift in an intermediate frequency stage  
In a radio receiver for receiving a radio signal, a counter (32) counts an eventual intermediate frequency of an amplified signal based on a reference signal as a count datum. A frequency...
5493716 Method of operating a radio  
A radio (100), powered by a battery (170), can be used in remote meter reading applications. In order to conserve battery power, the radio (100) is capable of determining that a signal is an image...
5493210 Combined signal level meter and leakage detector  
A combined signal level meter and leakage detector having a built-in antenna for the leakage detector, and dual clock frequency control of the microcontroller along with bandwidth switching for...
4918748 Apparatus and method for phase noise and post tuning drift cancellation  
The tuner section of a communications receiver 10 includes a gallium arsenide voltage controlled oscillator 48 for upconverting the received signal in mixer 18. Phase noise and post tuning drift...
4575761 AFT arrangement for a double conversion tuner  
A double conversion tuner stabilized against drift includes a first local oscillator included in a phase locked loop (PLL) and a second local oscillator included in an automatic fine tuning (AFT)...
4551856 Synthesized multiple conversion receiver system with provision for avoiding receiver self-quieting spurious response  
A multiple conversion superheterodyne receiver system includes a first frequency synthesizer capable of generating any one of a number of predetermined first local oscillator frequencies for mixing...
4521916 Frequency synthesis tuning control system for a double-conversion tuner  
The tuning control system of a double-conversion tuner includes a phase locked loop type of frequency synthesizer for controlling the frequency of a controllable oscillator comprising the first...
4512035 Method of programming a synthesizer ROM for elimination of receiver self-quieting  
A method of programming a ROM for a multiple conversion frequency synthesizer provides a mechanism for avoiding receiver self-quieting. The method includes the steps of searching for frequencies...
Matches 1 - 12 out of 12