To provide a radio communication equipment with which a transmission signal output level can be regulated lower than a specified output level at all times.
This equipment has a transmission signal generator 2 for generating a transmission signal, transmission preamplifiers 3 and 4 for amplifying the generated transmission signal, brancher 7 for branching the transmission signal of the transmission pre-amplifiers 3 and 4 into a main transmission signal (p) and a subordinate transmission signal (q) and delayer 11 for outputting a delayed transmission signal delaying the signal (p) and is provided with a variable attenuator 5 for outputting an attenuated transmission signal attenuating the delayed transmission signal just for prescribed quantity, transmission final step amplifier 6 for amplifying the attenuated transmission signal, and transmission signal output level detector 9 for outputting a level detect signal (c) by detecting the transmission signal output level from the signal (q). Then, a control part 10 is provided for calculating the attenuation quantity of the variable attenuator 5 based on the signal (c) and outputting an attenuation quantity control signal (d) showing the calculated value to the variable attenuator 5 within prescribed time.
JP2762941 | [Title of Invention] Background noise generator |
JP2009089064 | WIRELESS TRANSMITTER AND WIRELESS RECEIVER |
WO/1990/013952 | RADIO AND ELECTRONIC CARD ASSEMBLY |