User's Manual

Direction Finder RHOTHETA RT-400
RHOTHETA Page 14 of 18 User Manual
9 Technical Data
9.1 Electrical Characteristics
System Characteristics
Parameter Condition Data
DF Method - Doppler (3 kHz rotation frequency)
Bearing Accuracy 5° RMS
1
Display Resolution 1°
Minimum Signal Duration 100 ms
Frequency Range
VHF Air Band
118.000 – 124.000 MHz
118.000 – 136.992 MHz (Option)
Marine Band
154.000 – 163.000 MHz
137.000 – 224.995 MHz (Option)
UHF Air Band
240.000 – 246.000 MHz
225.000 – 399.975 MHz (Option)
COSPAS-SARSAT 400.000 – 406.092 MHz
UHF FM-Band
406.100 – 410.000 MHz
406.100 – 470.000 MHz (Option)
Receive Frequency Tuning
Steps
VHF Air Band 8.33 kHz
Marine Band 5 kHz
UHF Air Band 25 kHz
COSPAS-SARSAT 8.33 kHz
UHF FM-Band 5 kHz
Bearing Sensitivity
Continuous signal
VHF Air Band,
±5° bearing fluctuation
≤ 4 µV/m / 2.5 µV/m typical
Marine Band,
±5° bearing fluctuation
≤ 3 µV/m / 2 µV/m typical
Extended Marine Band
above 174 MHz,
±5° bearing fluctuation
≤ 5 µV/m / 3 µV/m typical
UHF Air Band,
±5° bearing fluctuation
≤ 6 µV/m / 4 µV/m typical
COSPAS-SARSAT
±5° bearing fluctuation
≤ 6 µV/m / 4 µV/m typical
UHF FM-Band
±5° bearing fluctuation
≤ 6 µV/m / 4 µV/m typical