Belar FMHD-1 Operator's Manual

21, Belar FMHD-1 FMHD-1 Operator’s Manual BELAR ELECTRONICS LABORATORY, INC. Page 13 parameter must be highlighted in green to be changed. So, rotate the encoder knob to place the cursor at the parameter to be adjusted. Depress the knob momentarily to highlight the parameter green. Then, rotate the …

19, FMHD-1 Operator’s Manual BELAR ELECTRONICS LABORATORY, INC. Page 11 The RS-232 D-connector pin numbers are: Description Pin# Type CTX 1 Input RX 2 Input TX 3 Output RTS 4 Output GND 5 Ground Pins 6–9 are not used. 3.6 FMHD-1 System De-Emphasis All audio outputs …

32, FMHD-1 Operator’s Manual Page 24 FMHD-1 The popup menus listed in this section appear in the popup menu directory. The popup menu directory is accessed from any screen by depressing the encoder knob for two seconds. For convenience, the RF Spectrum Popup Menu is described as pa…

10, FMHD-1 Operator’s Manual Page 2 FMHD-1 directional coupler in “common-line” facilities, or separate analog and digital RF samples in “separate- line” facilities. The FMHD-1 provides high-accuracy modulation indications of conventional FM Stereo composite signals …

46, FMHD-1 Operator’s Manual Page 38 FMHD-1 Wideband This adjective refers to the frequency span of the pass-band for band-pass or low-pass signals. It suggests the widest practical pass-band for a signal. For low-pass signals, it also implies the un-de-emphasized, or “flat” version…

43, FMHD-1 Operator’s Manual BELAR ELECTRONICS LABORATORY, INC. Page 35 DDC Digital down-conversion. A digital signal processing technique whereby a digitally sampled RF or IF signal is converted to a baseband signal in I and Q form. DSB-SC DSB-SC stands for “double-sideband suppr…