R&S®DDF255 Direction Finder

Accurate direction finding with measurement and analysis capabilities in a single unit

Specifications

Frequency range, receive mode    base unit    20 MHz to 3.6 GHz    
    with R&S®DDF255-SHF option    20 MHz to 26.5 GHz    
    with R&S®DDF255-HF option    9 kHz to 3.6 GHz    
Frequency range, DF mode    base unit    20 MHz to 3 GHz    
    with R&S®DDF255-SHF option    20 MHz to 6 GHz    
    with R&S®DDF255-HF option    300 kHz to 3 GHz    
DF mode          
DF method    VHF/UHF/SHF range    correlative interferometer   
    HF    Watson-Watt   
System DF accuracy    in reflection-free environment, with lightning protection  
    1 MHz to 30 MHz     2° RMS   
    30 MHz to 80 MHz     ≤2° RMS, typ. 1° RMS   
    80 MHz to 1.3 GHz     1° RMS   
    1.3 GHz to 3 GHz     ≤2° RMS, typ. 1° RMS   
Realtime bandwidth for wideband direction finding          up to 20 MHz    
DF sensitivity    frequency-dependent    see diagram on page 22   
Receive mode           
Realtime bandwidth for analysis/demodulation        up to 20 MHz   
Scan speed    with R&S®DDF255-PS option    up to 100 GHz/s   
Minimum signal duration    VHF/UHF/SHF    1 ms   
    HF    2 ms