GAP ANTENNA

Logo GAP Antenna Products

GAP - The somewhat different short wave antenna...

Unique Features Standard To All GAP Antennas

- Unique "Elevated" Feed
- No Tuning Required
- No Traps
- Automatic Band Switching
- No Turner Required
- Input Impedance: 52 ohms Nominal
Four Reasons To Avoid Traps
  • A trap is a coil capacitor device that operates a high voltage. High voltage in a moist environment is prone to arc and destroys itself.
  •  
  • The coil portion of the trap changes its value as a function of temperature shifting the operating frequency of the antenna.
  •  
  • A trap must have a high Q to perform efficiently. A high Q trap will have a narrow band width and restrict antenna band width.
  •  
  • Finally, as everyone knows, traps are lossey. They rob transmitter power.

 TitanChallengerEagleVoyager
Bands:2m Yes  
6m Yes  
10mYesYesYes 
12mYesYesYes 
15mYesYesYes 
17mYes Yes 
20mYesYesYesYes
30mYes   
40mYesYesYesYes
80mYesYes Yes
160m   Yes
Max. power load (PEP)1500W 
500W auf 
80m
1500W 
500W auf 
80m
1500W 
300W auf 
40m
1500W 
500W auf 
160m
Height7,5m9,5m6,5m13,5m
Antenna surface0,5m20,41m20,42m20,83m2
German documentationYesNoYesYes
Weight11,5 Kg9,5 Kg8,5 Kg17,5 Kg
For mast diameter30-35mm Ø-30-35mm Ø-
Recommended guying11341113401134023100
TITAN DX

All 8 Bands from 10m to 80m incl. WARC
 
  • All 8 Bands from 10m to 80m incl. WARC
  • Length 7,5m
  • No radial required!
One of the primary virtues of the TITAN is the GAP center feed. The Titan is the only vertical antenna marketed with total continuous coverage under VSWR 2:1 on 10m to 40m and 100KHz bandwidth on 80m. 
By elevating the feed the earth loss is dramatically decreased, which means the antenna operates independent from the earth conditions and may be installed either on a roof or close to the ground. 
As is the case with all the other GAP antennas no further tuning is required. 
The operating center frequency on 80m is set by means of an integrated fixed capacity. Please specify the desired center frequency upon ordering. The standard setting is 3.65 MHz, available are 3.55 or 3.7 MHz. 
The TITAN requires no radials!


CLICK HERE TO BUY
EAGLE DX
 

6-Band 40/20/17/15/12/10m
Length 6,5 m 
The EAGLE is the smallest antenna in the GAP product line. The Eagle weights less than 9 Kg and can be installed almost anywhere - at ground level, on a pole, on your roof or atop a tower. It is essentially a set of vertical dipoles - the optimum singular DX antenna! No traps, coils or transformers are used to achieve multiband operation in this antenna either. 
The EAGLE provides full coverage with VSWR < 2:1 on 40/20/17/15 and 12m; and approximately 500KHz on 10m without readjusting. 
If the band is wide open, you might work a VK with a coat hanger, but when conditions are less than perfect you want the highest efficiency the antenna can provide. The efficiency of the GAP Eagle is without equal. It has no traps, transformers or matching coils to rob transmitted or received power. For the highest S meter reading, choose a GAP Eagle. 
Three rigid counterpoises are required for operation (see picture) but no radials. 

CLICK HERE TO BUY


 
CHALLENGER DX
 
#8-Band 80/40/20/15/12/10/6/2m
Length 9,5 m
The Challenger is designed to be mounted directly on the ground or elevated on the roof. As is the case with the other GAP antennas since it does not require earth loss to obtain a 50 Ω match.! 
Roof mount does not gain any specific advantage due to the 'elevated ground' structure, but is possible if there's no garden etc. available. 
The CHALLENGER covers the bands 6/10/12/15/20 and 40m. Over 130KHz of bandwidth is provided on 80m! 
The antenna requires a counterpoise of three 7.5m wires. They may be buried or just scattered on the ground. Symmetrical deployment is not critical. Adding additional wire will not significantly improve performance. 
As described with the TITAN The operating center frequency on 80m is set by means of an integrated fixed capacity. Please specify the desired center frequency upon ordering. The standard setting is 3.65 MHz, other frequencies are available on request. 

CLICK HERE TO BUY

VOYAGER DX
 
4-Band 160/80/40/20m
Length 13,5m
This is the first antenna manufactured specifically to provide efficient low band operation. Emphasis was given to 160m and 80m when designing the VOYAGER. 
Unlike the Challenger, the VOYAGER employs a capacity hat with circular ring to reduce the physical height to 13.5m while maintaining an electrical height of 20 m. A capacity hat is the most efficient way to reduce height, maintain bandwidth and eliminate corona. 
The entire band on 80m (!!), 40m and 20m, 90 KHz bandwidth on 160m. 
As is the case with the CHALLENGER three insulated counterpoises of 17m are required, the deployment pattern is very flexible - also possible around corners. 
Four guy anchor points 7.5m from the base mount are required. The guy brackets and aluminum pivot are supplied but not the guy rope itself. 

CLICK HERE TO BUY

Ground mount
Tiltable ground mount for digging in or fix in concrete. Enables quick tilt of the antenna (not required for model Voyager which contains a similiar base). For use with EAGLE and TITAN please specify the desired length of the steel tube. 
Ideal for the field day etc

CLICK HERE TO BUY


 
Guy wire kit
Consisting of a guy bracket and 30m respectively 60m guy rope made of black, ultra-violet resistant DACRON (Polyester) material;, only 3mm thick, rupture force 150 kg.

CLICK HERE TO BUY
 
Yaesu
Icom