You’ve probably seen old-time photos of radio setups with the station operator fiddling with the dials on the wireless radio setup, and also adjusting a large, wirewound (or copper tubing) coil. From ...

ERI is introducing the ACS-100 antenna control system, which it calls a solution to the problem of four-port antenna switch control. It can be programmed to handle the switch position requirements ...

Covering a frequency range of 690 MHz to 2700 MHz, the Kaelus iVA portable cable and antenna analyzer enables users to accurately determine VSWR and return loss, as well as the location of VSWR/return ...

This is the fourth in a series of articles about FM transmission systems. The bandwidth of a commercial FM broadcast signal, depending on whether or not subcarriers are used, is about 260 kHz. This ...

Figure 1. Spectrum analyzer display of adjacent TV channels, DTV channel 19 (center) and NTSC channel 20 (right). Note NTSC signal’s visual, chroma and aural carrier components. Image courtesy the ...