Wireless: What are the hopping specifications in TEMPEST wireless?
Tempest uses FHSS (Frequency Hoping Spread Spectrum) Technology
It also employs dual transmit of audio packets to provide a robust audio/data connection between the base unit and wireless beltpacks.
Each data packet(audio/data) is sent on one frequency and then the system hops to another frequency and then sends the same 2nd data packet again.
Tempest General: Frequency Band: 2400 –2483.5 MHzRF Scheme: FHSS with TDMANumber of Freqs: 43Occupied Bandwidth: 1.2MHzHop duration: 5mS (200 hops/sec) (dwell time) Tempest Base: Output power: 18dBm (63mW) conductedAntennaGain: +2dBi (whip) Transmit time: 890uS/5mS hop (17.8%)Receiversensitivity: -90dBm for 10^-5 BERBelts supported: 5belts per base Tempest Belt: Output power: 18dBm (63mW) conductedAntennaGain: +2dBi (patch, horizontally polarized) Transmit time: 325uS/5mS hop/Belt (6.5%)Receiver sensitivity: -90dBm for 10^-5 BER
It also employs dual transmit of audio packets to provide a robust audio/data connection between the base unit and wireless beltpacks.
Each data packet(audio/data) is sent on one frequency and then the system hops to another frequency and then sends the same 2nd data packet again.
Tempest General: Frequency Band: 2400 –2483.5 MHzRF Scheme: FHSS with TDMANumber of Freqs: 43Occupied Bandwidth: 1.2MHzHop duration: 5mS (200 hops/sec) (dwell time) Tempest Base: Output power: 18dBm (63mW) conductedAntennaGain: +2dBi (whip) Transmit time: 890uS/5mS hop (17.8%)Receiversensitivity: -90dBm for 10^-5 BERBelts supported: 5belts per base Tempest Belt: Output power: 18dBm (63mW) conductedAntennaGain: +2dBi (patch, horizontally polarized) Transmit time: 325uS/5mS hop/Belt (6.5%)Receiver sensitivity: -90dBm for 10^-5 BER
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