2-Meter Cubical Quad-2: Howzit for TV?

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2-Meter Cubical Quad-2: Howzit for TV?

2-Meter Cubical Quad-2: Howzit for TV? analyzed using 4nec2.

Dimensions from "Simpleton's Guide to Quad Antennas":
http://www.artscipub.com/simpleton/simp-quad.asp

Modeling the above dimensions in 4nec2 reveal a significant SHIFT upwards in the resonant frequency to about 151 MHz.
vice 144-148 MHz needed for 2-Meter Band, SWR was Excessive 4:1.

Hi-VHF TV Band Raw Gain was usable, but max was towards the REAR of the antenna. SWR with 50-ohm load
(as required for 2-Meter operation) was Excessive. Inserting a 4:1 Balun reduced SWR to an acceptable 2 to 3.

UHF TV Band Raw Gain was quite low for an antenna of this size with very inconsistent Azimuthal Antenna Patterns.

Date(s): 17 Jun 2010. Album by holl_ands. 1 - 19 of 19 Total. 6155 Visits.

enlarge 63KB, 1024x723 1 4-Element 2-m Cubical Quad - per Simpleton 3D View	enlarge 187KB, 1152x689 2 4-Element 2-m Cubical Quad - per Simpleton Top View	enlarge 229KB, 1024x860 3 4-Element 2-m Cubical Quad - per Simpleton Front View
enlarge 152KB, 1024x648 4 4-Element 2-m Cubical Quad - per Simpleton 2-Meter Raw Gain is about 9.5 dBi	enlarge 180KB, 1024x648 5 4-Element 2-m Cubical Quad - per Simpleton 2-Meter SWR (50-ohms) Resonance has SHIFTED UPWARDS to 151 MHz	enlarge 153KB, 1024x648 6 4-Element 2-m Cubical Quad - per Simpleton 2-Meter Impedance Chart
enlarge 155KB, 1152x584 7 4-Element 2-m Cubical Quad - per Simpleton Ch2-69 Raw Gain FORWARD	enlarge 138KB, 1024x648 8 4-Element 2-m Cubical Quad - per Simpleton Ch2-69 Raw Gain towards REVERSE	enlarge 143KB, 1024x648 9 4-Element 2-m Cubical Quad - per Simpleton Ch2-69 Raw Gain towards the SIDES
enlarge 209KB, 1024x648 10 4-Element 2-m Cubical Quad - per Simpleton Ch2-69 SWR (50-ohms)	enlarge 210KB, 1024x648 11 4-Element 2-m Cubical Quad - per Simpleton Ch2-69 SWR (75-ohms)	enlarge 197KB, 1024x648 12 4-Element 2-m Cubical Quad - per Simpleton Ch2-69 SWR (300-ohms)
enlarge 302KB, 1024x1024 13 4-Element 2-m Cubical Quad - per Simpleton FM Azimuthal Pattern	enlarge 301KB, 1024x1024 14 4-Element 2-m Cubical Quad - per Simpleton Ch10 Azimuthal Pattern	enlarge 314KB, 1024x1024 15 4-Element 2-m Cubical Quad - per Simpleton Ch14 Azimuthal Pattern
enlarge 321KB, 1024x1024 16 4-Element 2-m Cubical Quad - per Simpleton Ch32 Azimuthal Pattern	enlarge 315KB, 1024x1024 17 4-Element 2-m Cubical Quad - per Simpleton Ch51 Azimuthal Pattern	enlarge 303KB, 1024x1024 18 4-Element 2-m Cubical Quad - per Simpleton Ch69 Azimuthal Pattern
enlarge 26KB, 791x1024 19 4-Element 2-m Cubical Quad - per Simpleton 4nec2 File

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