User's Manual

Table Of Contents

Helios Installation Guide

Signal Strength Expectations

Overall Goal: Adjust the antenna such that the narrowband and wideband signal

strength and quality levels are as high as possible.

Narrowband strength acceptable ranges are -15 to -70. -15 is better, higher strength

signal than -70 (closer to zero). The values of the NB signal strength received by the

camera and video hub are typically expected to be approximately the same value.

Narrowband quality values above 35 should yield an acceptable operation. But this

can vary depending on the RF environment.

A Wideband signal strength within the range of -40 to -65 will typically yield very solid

performance. Wide Band signal strength should also be as high (closer to zero) as

possible. Acceptable ranges vary by environment.

DEMOD Value: A lower Demod value will help permit operation at greater distances, or

at weaker signal levels. The trade-off with a lower Demod rate however, is the length of

time required to send data packets will be longer, allowing for a greater chance of

interference. Depending on the RF environment, this can ultimately result in a lower

average frame rate. (dropped frames)