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Some voting systems regard frequencies above a certain frequency (i.e. 2700 Hz) as noise. With inversion and
rolling code scramblers the voting comparator may treat the inverted voice as noise.
Simulcast Systems:
Call for more information.
HF SSB:
Midian does not recommend the TVS-2 to be used on HF SSB systems for several reasons. Due to the nature of
SSB modulation the signal fades in and out. Depending on the strength of the signal at the time the sync is
received by the TVS-2 will determine whether or not the sync will be decoded. A radio 30 miles away might
decode, but a radio 30 feet away might not. If the TVS-2 is used in an SSB system Midian recommends that
either L1 or L2 hop rates are used for audio quality purposes.
For HF SSB systems Midian recommends using Midian’s VS-1200 frequency domain scrambler.
