G21B301111 Datasheet, PDF (2/22 Pages) List of Unclassifed Manufacturers – G21 GSM Hercules Gen.II Penta Band Cellular Antenna Screw-mount GSM/GPRS/CDMA/EVDO/UMTS/HSPA/WCDMA 850/900/1800/1900/2100 MHz

1. INTRODUCTION
The G21 (Generation II) Hercules is a high performance steel thread-mount Penta-band
cellular antenna for external use on vehicles and outdoor assets worldwide. Omni-
directional high gain across all bands ensures constant reception and transmission.
Durable UV resistant ABS housing is resistant to vandalism and direct attack. At only 29
mm height it complies with the latest EU height restrictions directives for roof-mounted
objects, with a diameter of 49 mm. Designed to not catch on tree-branches. This
antenna can be mounted on metal structures.
2. SPECIFICATION
ELECTRICAL CELLULAR
Standard
AMPS
GSM
DCS
PCS
3G
Band (MHz)
850
900
1800
1900
2100
Frequency (MHz)
824-896 880-960 1710-1880 1850-1990 1920 –2170
Return Loss (dB)
0.3
-6.0
-5.2
-6.1
-6.2
-5.8
Cable
1.0
length
2.0
(meter)
3.0
-7.8
-8.1
-11.0
-8.7
-9.3
-12.4
-11.4
-16.5
-17.5
-15.3
-20.3
-18.3
-13.7
-19.5
-18.1
5.0
-11.8
-13.6
-17.6
-17.8
-17.8
Efficiency (%)
0.3
51.1
41.4
38.0
46.5
32.3
Cable
1.0
length
2.0
(meter)
3.0
29.4
24.3
24.6
40.2
27.5
27.6
42.2
28.4
22.0
43.4
20.2
17.8
29.9
19.6
15.0
5.0
17.1
16.4
15.7
15.0
12.0
Gain (dBi)
0.3
1.8
0.8
1.3
3.9
1.5
Cable
1.0
1.0
2.2
0.6
1.6
length
2.0
0.9
1.8
0.2
-0.7
(meter)
3.0
0.8
0.9
-1.0
-1.1
-0.3
-1.1
-2.2
5.0
-1.0
-0.5
-4.5
-4.2
-4.3
Polarization
Linear
Impedance
50 ohms
Max Input Power
VSWR
10 watts
<3.5:1
*Note: The return loss, efficiency and gain in the above table, were measured on 30x30 cm
metal plate with RG174 cable. For a specific case performance refers to the below plots.
SPE-12-8-047/D/EZ Page 2 of 22