Inside a building with an acceptable degree of radio frequency screening.
The display shows the lowest and highest usable (centre) frequencies within this TV channel at this site. Any frequency between these values (inclusive) can be used.
The blue bar indicates the portion of this TV channel that is usable.
(best)
(help)
The channel is not used for TV broadcast reception at this location. Background signal levels for TV would not normally be expected to cause interference to operation of typical wireless microphone or personal monitor systems.
(help)
The channel is used for TV broadcast reception at this location. Expected signal levels for TV are low representing edge-of-service area. Use of typical wireless microphone or personal monitor systems within a building of predominately brick, block, stone or metal construction is unlikely to be affected.
(help)
The channel is used for TV broadcast reception at this location. Expected signal levels for TV are moderate representing main coverage area. Use of typical wireless microphone or personal monitor systems within a building having substantial construction to reduce penetration of TV signals may be successful.
(worst)
(help)
The channel is used for TV broadcast reception at this location. Expected signal levels for TV are high representing nearby high power broadcast station. Use of typical wireless microphone or personal monitor systems is not generally recommended unless extreme care in deployment is taken to minimise the risk of interference from TV signals.