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holl_ands | Home > LPDA + ZigZagLPA Antennas > UHF LPDA > Browse:EU 15-El FLAT LPDA - OPTUHF 4-El-Pair FLAT-Enh1 FFFDLA - OPTUHF 7-El-Pair FLAT LPDA - Terk HDTVi/aUHF 7-EL-Pair FLAT LPDA - Silver SensorUHF 7-El LPDA w Shorting Stub - LPCAD34UHF 7-El Wedge vs Layered LPDA - OPTUHF 7-El FLAT LPDA vs FFFDLA - OPTUHF 7-El VEE LPDA + Shorting Stub - OptUHF 8-El VEE LPDA + Shorting Stub - OptUHF 8-El LPDA - VA3RRUHF 9-El LPDA w Shorting Stub - LPCAD34UHF 13-El Twin-Boom LPDA - OPTUHF 14-El (300-ohms) LPDA - dnesUHF 14-El VEE LPDA + Shorting Stub - OPTUHF 15-El FLAT LPDA - OPTUHF 45-El LPDA - ZS6BTE
UHF 7-EL-Pair FLAT LPDA - Silver Sensor UHF 7-Element-Pair Flat LPDA (Log Periodic Dipole Array) with Swept Back Elements, aka SILVER SENSOR, analyzed using 4nec2. Note that Characteristic Impedance is 75-ohms and it is POSSIBLE that Amplified model has an Impedance Matching Network for improved SWR. BOOM LENGTH = 11.75-in. UHF Raw Gain = 6.5 to 7.4 to 7.0 dBi, F/B & F/R Ratio Min. = 16.8 dB and SWR (300-ohms) Under 2.6. Hi-VHF Raw Gain = 1.0 to 1.7 to 1.9 dBi, F/B & F/R Ratios = 0.1 to 0.4 dB and SWR (75-ohms) = 2840 to 400 is Excessive. Date(s): 11 Aug 2015. Album by holl_ands. 1 - 21 of 21 Total. 1622 Visits.
enlarge 120KB, 1152x634 1 UHF 7-El-Pair LPDA - Silver Sensor 3D View Upward "Wing" Angle is an Optical Illusion. enlarge 115KB, 1152x363 2 UHF 7-El-Pair LPDA - Silver Sensor Front View [1 large square = 1.25 inches] enlarge 331KB, 1016x1024 3 UHF 7-El-Pair LPDA - Silver Sensor Top View [1 large square = 1.25 inches] enlarge 180KB, 1024x741 4 UHF 7-El-Pair LPDA - Silver Sensor UHF Raw Gain = 6.5 to 7.4 to 7.0 dBi UHF F/B & F/R Ration Min. = 16.8 dB enlarge 194KB, 1024x741 5 UHF 7-El-Pair LPDA - Silver Sensor UHF SWR (75-ohms) Under 2.6 enlarge 218KB, 1024x741 6 UHF 7-El-Pair LPDA - Silver Sensor UHF Impedance enlarge 302KB, 1024x1024 7 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 470 MHz enlarge 299KB, 1024x1024 8 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 530 MHz enlarge 300KB, 1024x1024 9 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 590 MHz enlarge 299KB, 1024x1024 10 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 650 MHz enlarge 300KB, 1024x1024 11 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 698 MHz enlarge 300KB, 1024x1024 12 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 758 MHz enlarge 303KB, 1024x1024 13 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 806 MHz enlarge 44KB, 791x1024 14 UHF 7-El-Pair LPDA - Silver Sensor 4nec2 File Includes Summary of Dimensions enlarge 26KB, 791x1024 15 UHF 7-El-Pair LPDA - Silver Sensor EVAL Summary of Performance enlarge 169KB, 1024x741 16 UHF 7-El-Pair LPDA - Silver Sensor Hi-VHF Raw Gain = 1.0 to 1.7 to 1.9 dBi Hi-VHF F/B & F/R Ratios = 0.1 to 0.4 dB enlarge 188KB, 1024x741 17 UHF 7-El-Pair LPDA - Silver Sensor Hi-VHF SWR (75-ohms) = 2840 to 400 is Excessive enlarge 212KB, 1024x741 18 UHF 7-El-Pair LPDA - Silver Sensor Hi-VHF Impedance enlarge 305KB, 1024x1024 19 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 174 MHz enlarge 306KB, 1024x1024 20 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 198 MHz enlarge 306KB, 1024x1024 21 UHF 7-El-Pair LPDA - Silver Sensor Azimuthal Pattern at 216 MHz
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