Wide bandwidth radio transmitters commonly use analog quadrature modulators (AQMs) to convert complex (I + j*Q) baseband signals to radio frequencies (RF). An AQM consists of a local oscillator (LO) ...
The Foundation of Performance In the professional sector, digital transition begins with the physical integrity of the device. A common critique of early digital migrations was that the hardware ...
In a special report late last year we explored the fairly recent discovery of inadvertent “capture” of out-of-market HD digital radio signals by receivers tuned to local stations on the same frequency ...