CHA 40/20 FD
Page 12
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Coaxial Cable.
A 50-foot length of RG-58 coaxial cable with an integrated RF choke is available for purchase.
Specifications
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Frequency: 7 and 14 MHz Amateur Radio Service frequencies.
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SWR: Field tunable for resonance, 2.0 or less over a 300 KHz bandwidth, see figures (6) and (7).
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Power Handling: 150 Watts.
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Space Required: An area 54 feet in length and 40 feet in width and have, or be able to accommodate, a
20-foot mast or other vertical support near the center of the area.
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RF Connection: UHF Socket (SO-239).
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Installation Time and Personnel Resources: Approximately 1 Hour, two personnel
.
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Far Field plots for the Tactical Delta Loop antenna configurations are shown in figures (8) and (9)
Figure 6. 40m Band Measured SWR.
Figure 7. 20m Band Measured SWR.
