Antenna Specifications

Listing order is by antenna length

Specifications represent antennas sold after May 1, 2009. CAROLINA WINDOMS® sold before that date do not include 6 meter coverage.

Model MicroDipole™
Not currently available
CAROLINA WINDOM® 620
Special order.
CAROLINA WINDOM® Short 80 Special
Special order.
CAROLINA WINDOM® 40 Compact™
CAROLINA WINDOM® Short 40
SuperLoop™ 40

Special order.
CAROLINA WINDOM® 80 Compact™
Frequency coverage 160 - 10 m (single band) 20, 15, 10 , 6 m 80 - 6 m 40 - 6 m 40 - 6 m 40 -10 m 80 - 6 m
Space required? 16' 34' 50' 34' 50' > 56' 69'
Minimum support height > 15' as high as possible > 25' > 25' >25' >25' > 30' > 30'
Polarization horizontal or vertical horizontal and vertical horizontal and vertical horizontal and vertical horizontal and vertical horizontal and vertical horizontal and vertical
Feed line type recommended 50 ohm coax RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240
Antenna matching direct DMU + LI + tuner DMU + LI + tuner DMU + LI + tuner DMU + LI + tuner DMU + tuner DMU + LI + tuner
Tuner required? no, but recommended yes yes yes yes yes yes
Power rating, SSB/CW* 100 watts 1500 w (<300 w on 6) 1500 w (<500 w on 80) 1500 watts 160 -10 m, 200 watts on 6 m 1500 watts 1500 watts 1500 watts 80 -10 m, 200 watts on 6 m
Radial system required no no no no no no no

Power Ratings for all antennas.
* Important: Antennas are not rated for AM, RTTY or other high duty-cycle modes. The power rating is for normal SSB and CW duty-cycles only.

Exception: At transceiver output levels, all antennas rated for 1500 watt service may be used on PSK-31 and similar modes without sacrificing low IMD specifications.

Specifications represent antennas sold after May 1, 2009. CAROLINA WINDOMS® sold before that date do not include 6 meter coverage.

Attic, Stealth, and other antennas designed to be support at low heights above ground

Model CAROLINA WINDOM® 40 AV9 Compact™ CAROLINA WINDOM® 40 AV6 Compact™          
Frequency coverage 40 - 6 m 40 - 6 m          
Space required? 34' 34'          
Minimum support height > 15' or as high as possible > 15' or as high as possible          
Polarization horizontal and vertical horizontal and vertical          
Feed line type recommended 50 ohm coax, RG-8X, Super 240 50 ohm coax, RG-8X, Super 240          
Antenna matching DMU + LI + tuner DMU + LI + tuner          
Tuner required? yes yes          
Power rating, SSB/CW* 1000 watt rating but due to close proximity to people and household electronics, 200 watts max is recommended 1000 watt rating but due to close proximity to people and household electronics, 200 watts max is recommended          
Radial system required no no          


Listing order is by antenna length

Specifications represent antennas sold after May 1, 2009. CAROLINA WINDOMS® sold before that date do not include 6 meter coverage.

Model CAROLINA WINDOM® 80 Special CAROLINA WINDOM® 40 CAROLINA WINDOM® Short 160 Special CAROLINA WINDOM® Short 80      
Frequency coverage 80 - 6 m 40 - 6 m 160 - 6 m 80 - 6 m      
Gain 40 - 10 m 40 - 10 m 80 - 10 m 80 - 10 m      
Space required? 66' 66' 100' 100'      
Minimum support height > 25' > 25' > 45' >25'      
Polarization horizontal or vertical horizontal and vertical horizontal and vertical horizontal and vertical      
Feed line type RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240      
Antenna matching DMU + LI + Tuner DMU + LI + Tuner DMU + LI + Tuner DMU + LI + Tuner      
Tuner required yes yes yes yes      
Power rating, SSB/CW* 1500 w (<500 w on 80) 1500 watts 1500 w (<500 w 160 ) 1500 watts      
Radial system required no no no no      


Listing order is by antenna length

Specifications represent antennas sold after May 1, 2009. CAROLINA WINDOMS® sold before that date do not include 6 meter coverage.

Model G5RV Plus™ SuperLoop™ 80 CAROLINA WINDOM® 160 Special CAROLINA WINDOM® 80 CAROLINA WINDOM 160® Compact™    
Frequency coverage 80 - 10 m 80 - 10 m 16 - 6 m 80 - 6 m 160 - 6 m    
Space required? 102' 112' 132' 132' 139'    
Minimum support height > 35' > 40' > 35' > 35' > 35'    
Polarization horizontal horizontal and vertical horizontal and vertical horizontal and vertical horizontal and vertical    
Feed line type RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240 RG-8X or Super 240    
Antenna matching Stub + LI + tuner DMU + tuner DMU + LI + tuner DMU + LI + tuner DMU + LI + tuner    
Tuner required yes yes yes yes yes    
Power rating, SSB/CW* >2500 w 1500 watts 1500 w (<500 w 160 ) 1500 watts 1500 watts 1680 -10 m, 200 watts on 6 m    
Radial system required no no no no no    

Listing order is by antenna length

Specifications represent antennas sold after May 1, 2009. CAROLINA WINDOMS® sold before that date do not include 6 meter coverage.

Model CAROLINA WINDOM® 160     BigSig Loop™
Special order.
VRD™
Listed for reference only. It is no longer made.
Ultima Dipole™  
Frequency coverage 160 - 6 m     single band, 40 - 10 meters single band, 80 - 10 m single band,
80 -10 m
 
Space required? 265'     depends upon band 1/2 wavelength 1/2 wavelength  
Minimum support height > 45'     depends upon band depends upon band > 25'  
Polarization horizontal and vertical     horizontal and vertical vertical horizontal  
Feed line type RG-8X or Super 240     RG-8X or Super 240 RG-8X or Super 240 RG-8X, Super 240, RG-213  
Antenna matching Stub + LI + tuner     DMU DMU + tuner direct  
Tuner required yes     no no no  
Power rating, SSB/CW* 1500 w     1500 watts 1500 w >> 1500 watts  
Radial system required no     no no no  

Notes

DMU = Dedicated Matching unit

LI = Line Isolator

You will see these suggested coax lengths in some of older publications. When the antenna is supported at 50' above ground, these lengths can produce a slightly improved SWR reading at the transmitter end of the coax. This can be useful when using some automatic tuners. While these lengths can improve the SWR, changes in support height and other variables make these exact lengths less useful. Thus, I no longer suggest these lengths and with the manual tuner and wide range automatic tuners available today, just use whatever length is most convenient for you. If you have a problem tuning on a particular band, it is often useful to add 1/8 to 1/4 wavelength of feedline to bring the SWR down to the tuning range of the tuner. In some cases, a manual tuner or wide range automatic tuner may still be necessary.

Note 1: Feed line length is not critical. These values have been suggested in the past because they permitted older automatic tuners to work on most bands. These values assumed a support height of 50 feet. Since that is rarely the case, we no longer include this recommendation in our specifications. They are included here for reference and may be used. However, there may be no real benefit in real-case scenarios due to the variability in actual installations. Lengths in the chart are for RG-8X.

Note 2: Tuner, feed line, and support lines are user supplied.

* Important: Antennas are not rated for AM, RTTY or other high duty-cycle modes. The power rating is for normal SSB and CW duty-cycles only.

Exception: At transceiver output levels, all antennas rated for 1500 watt service may be used on PSK-31 and similar modes without sacrificing low IMD specifications.

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