MODEL NO.  GH-800U
  ACTIVE DIRECTIONAL ANTENNA
 
 
 
High snesitivity and wide frequency range for all UHF band
Built-in switchable active amplifier
Model No. GPS-550, Portable sound system
Resonate Frequency Range 650-900 MHz
Radio Pattern Omni directional
Standard Wave Ratio 1.3 or less
Isulation Resistance 500M Ohm at DC 500V
Gain 3dB or 14dBV
Size 290x260 mm / 190g