The auto-tune function automatically sets center frequency to the maximum signal within the full measurement span and optimizes settings for RIM, video bandwidth
(VBW), and sweep time.
This ripple, which is at twice the input frequency, appears because the input frequency and the video bandwidth
are close to one another.
The units have a dynamic range of 65 dB to 70 dB, a TSS of -67 dBm and a nominal video bandwidth
of 20 MHz.
Units feature an 8 MHz video bandwidth
and 10 dB optical budget for applications where the distance is less than 2 miles.
Bill Ayer includes a chart that shows sensitivity for 0-dB signal-to-noise (SNR) ratio [approximately equal to] -54 + 5[Log.sub.10][B.sub.V] dBm for "good" 1956-vintage detector diodes (where [B.sub.V] is the video bandwidth
The 4540 family supports sensors up to 110 GHz with a range of-70 dBm to + 44 dBm (CW) and -55 dBm to + 20 dBm (peak), a 70-MHz video bandwidth
, up to 7-ns input rise times, and time resolution of 200 ps.
These units have a dynamic range of 65 to 70 dB, a TSS of -67 dBm and a nominal video bandwidth
of 20 MHz.
The GRM monitor was designed with full multisynch ability and a video bandwidth
of 150 MHz at -3 dB so viewers see clean, clear images in all IBM and VESA standards and in any video mode from 640 X 480 pixels up to 1,600 X 1,200 pixels.
The link transmits color or black-and-white video signals at distances up to 1.5 miles over standard multimode fiber lines, with a video bandwidth
of 8 MHz.
A further limitation in the utility of this estimator lies in the mathematical relationship between the autocorrelation time delay, the video bandwidth
and the RF bandwidth.