G21B301111 Datasheet, PDF (9/22 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

4.3 Gain
Figure 8. Gain of G21 Hercules antenna in free space.
Figure 9. Gain of G21 Hercules antenna on 30 cm metal plate.
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