<p> ANTENNA Y21010XL8 Short comment: Not impressive performances in SWR bandwidth and, even, gain. However, good results obtained when stacked in diamond form</p><p>PERFORMANCES: (No loss condition)</p><p>L G F/B F/Sh F/Sv Hor Ver Temp G/T TYPE ELE (mm) (dBi) (dB) (dBi) (dBi) (◦) (◦) (◦K) (dB) Y21010XL8 10 5225 14,64 25,70 22,43 17,36 36,0 39,6 229,8 -8,97 * ΔF given for SWR=1,5</p><p>PERFORMANCES: (Losses included)</p><p>Element material G (dBi) Temp (◦K) G/T (dB) Aluminum rods 14,60 230,6 -9,03</p><p>COMPARISON</p><p>Gain G/T Antenna Boomlength (mm) Material TA (◦K) Bandwidth (MHz) (dBi) (dB) No loss 14,64 229,8 -8,97 Y21010XL8 5225 143,000-145,450 Aluminum 14,60 230,6 -9,03 No loss 14,12 224,1 -9,38 EF0210-5LT 5190 142,000-145,790 Aluminum 14,01 246,0 -9,53</p><p>DIMENSIONS:</p><p>Ref De1 De2 D1 D2 D3 D4 D5 D6 D7 D8 Pos 0 315 535 645 975 1455 2024 2758 3587 4461 5225 - All elements made of Al rods Ǿ10 mm - All dimensions given in milimetres Length 1000 920 880 937 925 903 887 874 862 846 832</p><p>DIAGRAMS (no loss included)</p><p>DIAGRAMS (losses included)</p><p>Four stacked antennas, horizontally 320, vertically 300 cm, no loss</p><p>Four stacked antennas, horizontally 320, vertically 300 cm, Aluminum</p><p>G F/B F/Sh F/Sv Hor Ver Temp G/T TYPE CONDITION (dBi) (dB) (dBi) (dBi) (◦) (◦) (◦K) (dB) No loss 20,45 26,66 12,17 12,11 16,6 18,2 226.8 -3,11 4xY21010XL8 Aluminum 20,41 26,60 12,19 12,13 16,6 18,2 227,4 -3,16</p><p>Four antennas, stacked in diamond form, horizontally 420, vertically 520 cm, no loss</p><p>Four antennas, stacked in diamond form, horizontally 420, vertically 520 cm, Aluminum</p><p>G F/B F/Sh F/Sv Hor Ver Temp G/T TYPE CONDITION (dBi) (dB) (dBi) (dBi) (◦) (◦) (◦K) (dB) 4xY21010XL8 No loss 20,65 25,80 28,04 20,34 18,2 15,4 216,1 -2,70 in diamond Aluminum 20,61 25,75 28,01 20,32 18,2 15,4 216,9 -2,75 stack</p>