ORBIT FR Monocones - Manual (Page 2)

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Electrical characteristics
Part number SMC 70 SMC 220 SMC 700 SMC 2200
Type of antenna Monocone Monocone Monocone Monocone
Frequency range 70 MHz – 220 MHz 220 – 700 MHz 700 – 2200 MHz 2200 – 6000 MHz
Gain variation over azimuth < ± 0.1 dB < ± 0.1 dB < ± 0.1 dB < ± 0.1 dB
VSWR <1.9 <1.9 <1.9 <1.9
Impedance 50 Ohms 50 Ohms 50 Ohms 50 Ohms
Effi ciency > 80% > 80% > 80% > 80%
Frequency BW (Ret. loss < -10 dB) 1:3 app 1:3 app 1:3 app 1:3 app
Mechanical characteristics
Monocone type Frequency range A mm B mm C mm D mm Connector Type Weight Recommended
(approx) ground plane (4)
SMC 70 70 – 220 MHz 795.0 638.2 105.8 100 N Female (1) 9 Kg GP 400 (2)
SMC 220 220 – 700 MHz 300.0 229.2 85.8 100 N Female (1) 2.5 Kg GP 400 (2) from 220 to 400 MHz
GP 100 (3) from 400 to 700 MHz
SMC 700 700 – 2200 MHz 79.5 63.7 33.8 100 N Female (1) 0.3 Kg GP 100 (3)
SMC 2200 2200 – 6000 MHz 30.0 22.9 33.8 100 N Female (1) 0.25 Kg GP 100 (3)
(1) SPINNER ref # BN058739 and BN133670
(2) 1 m diameter
(3) 4 m diameter
(4) The Monocone antennas with ground planes are used for calibration in the frequency range 70-6000 MHz.
“A” = Total length “C” = Connector length
“B” = Antenna height “D” = Interface diameter
Mechanical drawing
“A”
“D”
“B”
“C”
SMC 700 Typical elevation pattern at 700 MHz
SMC 700 Typical azimuth elevation pattern at 700 MHz