HelixNet: What type of signal is the HelixNet HMS-4X power line using?
HelixNet digital Party-line uses shielded pair cable or CAT-5 cable specifically wired to support infrastructure to transport
audio and data over a range of frequencies. The maximum frequency used for transmission is approximately 25MHz.
Depending on the amount of audio and data transmitted, HelixNet digital Partyline can work with as much as 90dB signal
attenuation. However, the receivers are very sensitive and are susceptible to crosstalk between cables so HelixNet power
lines must be properly shielded from each other.
It is very important to maintain cable shield integrity through all connectors, splitter boxes and patch panels using HelixNet power lines.
The symptoms of crosstalk are:
audio and data over a range of frequencies. The maximum frequency used for transmission is approximately 25MHz.
Depending on the amount of audio and data transmitted, HelixNet digital Partyline can work with as much as 90dB signal
attenuation. However, the receivers are very sensitive and are susceptible to crosstalk between cables so HelixNet power
lines must be properly shielded from each other.
It is very important to maintain cable shield integrity through all connectors, splitter boxes and patch panels using HelixNet power lines.
The symptoms of crosstalk are:
- Main Station front panel LINE LED indicator turns amber or red (green is normal operation).
- Beltpacks, Remote Stations and Speaker Stations take longer than usual to boot and connect or intermittently connect / disconnect.
- Beltpack, Remote Station and Speaker Station front panel signal strength indicators show lower than usual signal strength (zero or one bar).
- Main Station diagnostics screen (Diagnostics->Powerlines) indicates collisions or errors on the line.
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