C-Series Multi-monoband Antenna Listing
Antenna Boom Length Wind Load Frequency in MHz Gain @74’1 Net Gain2 F/B Ratio3 VSWR4 (max) Turning Radius Wt. Mast Torque
C-3 18’ 5.5sqft 14.000-14.350 12.6dBi 4.6dBd 15dB <1.6:1 19.8’ 32# <280in/lb
7 elements     18.068-18.168 10.3 2.3 7 ~2.8:1      
(1) 50 ohm feedine     21.000-21.450 12.8 4.8 17 <2:1 (425 kHz)      
      24.890-24.990 10.1 2.1 11 <3.2:1      
      28.000-29.700 12.5 4.4 18 1.5 MHz      
                     
C-3E 18’ 5.8sqft 14.000-14.350 12.6dBi 4.6dBd 15dB <1.6:1 19.8’ 34# <280in/lb
8 elements     18.068-18.168 10.3 2.3 7 ~2.8:1      
(1) 50 ohm feedine     21.000-21.450 12.8 4.8 17  <2:1 (425 kHz)      
      24.890-24.990 9.6 2.1 9 <3.2:1      
      28.000-29.700 13.2 5.1 21 1.5 MHz      
                     
C-4 18’ 6.9sqft 7.000-7.300 n/a -0.2dBd 0dB 130kHz<2:1 19.8’ 39# <320in/lb
8 elements     14.000-14.350 12.6dBi 4.6 15 <1.6:1      
(2) 50 ohm feedines     18.068-18.168 10.3 2.3 7 ~2.8:1      
(one for 40, one for 20-10)   21.000-21.450 12.8 4.8 17  425 kHz<2:1      
 Composed of C-3, plus    24.890-24.990 10.1 2.1 11 <3.2:1      
 EF -140S 40 mtr dipole   28.000-29.700 13.2 4.4 18  1.5 MHz<2:1      
                     
C-4E 18’ 7.2sqft 7.000-7.300 n/a -0.2dBd 0dB 130kHz<2:1 19.8’ 41# <320in/lb
9 elements     14.000-14.350 12.6dBi 4.6 15 <1.6:1      
(2) 50 ohm feedines     18.068-18.168 10.3 2.3 7 ~2.8:1      
(one for 40, one for 20-10)   21.000-21.450 12.8 4.8 17 425 kHz<2:1      
Composed of C-3E, plus    24.890-24.990 9.6 1.6 9 <3.2:1      
EF -140S 40 mtr dipole   28.000-29.700 13.2 5.1 21 1.5 MHz<2:1      
                     
C-4XL 30' 8.2sqft 7.000-7.300 11.9dBi 4.1dBd 14dB 130kHz<2:1 23.8’ 65# <900in/lb
9 elements     14.000-14.350 12.6 4.6 15 <1.6:1      
(2) 50 ohm feedines     18.068-18.168 10.3 2.3 7 ~2.8:1      
(one for 40, one for 20-10)   21.000-21.450 12.8 4.8 17  425 kHz<2:1      
Composed of C-3, plus    24.890-24.990 10.1 2.1 11 <3.2:1      
EF -240S 40 2el 40   28.000-29.700 12.5 4.4 18 1.5 MHz<2:1      
                     
C-3S 12' 5.0 sqft 14.000-14.350 12.5Bi 4.5Bd 15dB <1.6:1 18.9’ 26# <200in/lb
6 elements     18.068-18.168 10.1 2.0 7 ~2.8:1      
(1) 50 ohm feedine     21.000-21.450 12.7 4.7 16 <2:1 (425 kHz)      
      24.890-24.990 9.7 1.8 11 ~4:1      
      28.000-29.700 12.5 4.4 16 1.1 MHz<2:1      
                     
C-4S 12' 5.9 sqft 7.000-7.300 7.8dBi 0dBd 0dB 130kHz<2:1 19.4’ 33# <260in/lb
8 elements     14.000-14.350 12.5 4.5 14 <1.6:1      
(2) 50 ohm feedines     18.068-18.168 10.1 2.5 7 ~2.8:1      
(one for 40, one for 20-10)   21.000-21.450 12.7 4.8 17  425 kHz<2:1      
Composed of C-3S, plus    24.890-24.990 9.7 1.8 11 ~4:1      
EF -140S 40 mtr dipole   28.000-29.700 12.5 4.4 16 1.1 MHz<2:1      
                     
 C-4SXL 23' 8.0 sqft 7.000-7.300 11.9dBi 4.1dBd 14dB 130kHz<2:1 21.8' 48# <800in/lb
8 elements     14.000-14.350 12.5 4.5 15 <1.6:1      
(2) 50 ohm feedines     18.068-18.168 10.1 2.0 7 ~2.8:1      
(one for 40, one for 20-10)   21.000-21.450 12.7 4.8 17  425 kHz<2:1      
Composed of C-3S, plus    24.890-24.990 9.7 1.8 11 ~4:1      
EF -240S 2el 40   28.000-29.700 12.5 4.4 18 1.1 MHz<2:1      
                     
C-3SS 12' 4.4 sqft 14.000-14.350 12.2Bi 4.1Bd 18dB <1.6:1 13.6' 27# <100in/lb
6 elements     18.068-18.168 10.1 1.9 10 ~2.8:1      
(1) 50 ohm feedine     21.000-21.450 12.6 4.7 16  425 kHz<2:1      
      24.890-24.990 9.5 1.6 3 ~4:1      
      28.000-29.700 12.5 4.4 16 1.1 MHz<2:1      
                     

1,2,3,4 Footnotes: see Antenna Specifications on pages 8 & 9 and NOTES on Page 10 for details on specifications
                     

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