Quad HF all

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Two-element quad (W7ZQ). 2" OD Boom

        7 MHz            14 MHz         21 MHz        28 MHz
Ref.    144'11 1/2"      72'4"          48'8"         35'7"
DE      140'11 1/2"      70'2"          47'4"         34'7"
Spacing 30"              13'            10'           6'6"
Boom    
lenght  30'              13'            10'           6'6"
Feed
method  Directly with    Same but       Same but      Same but
        23' RG-11,       11'7" of       7'8 1/2"      5'8"
        then any lenght  RG-11, coax    RG-11, coax   RG-11, coax
        of RG-8 coax
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Four-element Quad (W0QIW (14 MHz)W7ZQ) Spacing: equal, 10 Ft. Boom 
length: 30 Ft. 3" OD Boom.

        14 MHz           14 MHz         21 MHz        28 MHz
        Phone             CW

Ref.    72'1 1/2"        72'5"          48'8"         35'8 1/2"
DE      70'1 1/2"        70'5"          47'4"         34'8 1/2"
D-1     69'1"            69'1"          46'4"         33'7 1/4"
D-2     69'1"            69'1"          46'4"         33'7 1/4"
Feed 
Method  Directly         Same           Same          Directly
        with 52                                       with 5'9"
        ohm coax.                                     RG-11, then
                                                      any lenght
                                                      RG-8 coax
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Four-element quad (W7ZQ/K8DYZ) Spacing: equal, 13'4"; Boom
lenght: 40 Ft. 3" OD boom.

         14 MHz          21 MHz         28 MHz

Ref.     72'5"           48'4"          35'8 1/2"
DE       70'5"           47'            34'8 1/2"
D-1      69'1"           46'1"          Directors 1-3 all 33'7"
D-2      69'1"           46'1"
Feed
method   Directly        Directly with
         with 52         7'9" RG-11,
         ohm coax        then any lenght
                         52-ohm coax.

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Six-element quad (W0YDM,W7UMJ). Spacing, 12 ft.; Boom lenght: 
60 ft. 3" OD boom.

Ref.         72'1 1/2"
DE           70'1 1/2"
D-1 2 and 3  69'1"
D-4          69'4"
Feed method  Directly with 52-ohm coax

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Some antennas come only in inch & foot measurements so use this to convert.

Converting English Measurements to Metric: 1 inch (1") = 2.5   cm
                                           1 foot (1') = 30.48 cm
Example: 42" X 2.54 cm = 106.7 cm


Thanks to the ARRL Antanna Book
Offered by Jack - KE4IQQ - AAAC #1
Address: @ KF4BPX.#OKE.FL.USA.NOAM