Silver Bullet 1000

The Silver Bullet is an 80 through 10 meter antenna coil which may be used at power levels up to 100 Watts SSB, 50 Watts CW and 20 Watts with digital modes. No antenna tuner is required. It is versatile and may be used for mobile, home, portable and apartment installation.

The coil and hardware are made of heavy duty corrosive resistant stainless steel. The overall dimension is 15.5" x 3.25" and it weighs one pound 8 ounces.

Tuning depending on the length of the whip used. (You supply your own whip.) This coil has been tested and used with antenna whips from 102 inches to as little as 36 inches.

The Silver Bullet 1000 out-performs many other mobile antennas in both SWR and bandwidth.

In the Field

On the Bench

These SWR plots were created with a Mini-VNA Pro. All measurements were done on a mobile installation using a 102" whip mounted on the back of a Honda.

The Silver Bullet 1000 coil has been tested with a variety size whips using a 3/8" 24 fine thread stud. Here is a listing of frequency ranges you can expect using your coil. All measurements were taken with a MFJ-269 Analyzer.

These measurements were taken with the collar set at mid-point for each frequency range. Coil adjustment can be made for even lower SWR at your desired resonance frequency.

*On 80 meters the tuning coupler was moved down one coil loop for each tuning range. The coil is capable of tuning the entire 80 meter band at 80 kHz intervals.

Smaller whips can be used. Your results may vary depending on your installation. As with most antennas, for mobile operation the car body may have an effect on your performance.

On 10 meters using a 102 inch whip you may need to remove the coil or use a tuner. For full coverage from 80 to 10 meters you may need to trim your whip for optimal performance.

Using a 102" Whip
Band	Frequency	SWR
*80 meters	3.995 MHz	1.8:1
	3.975 MHz	1.2:1
	3.935 MHz	1.8:1
*80 meters	3.924 MHz	1.8:1
	3.895 MHz	1.2:1
	3.856 MHz	1.8:1
*80 meters	3.865 MHz	1.8:1
	3.835 MHz	1.2:1
	3.805 MHz	1.8:1
*80 meters	3.805 MHz	1.8:1
	3.775 MHz	1.2:1
	3.745 MHz	1.8:1
60 meters	5.403 MHz	1.3:1
	5.537 MHz	1.3:1
	5.330 MHz	1.4:1
40 meters	7.290 MHz	2.0:1
	7.225 MHz	1.5:1
	7.170 MHz	2.0:1
30 meters	10.150 MHz	1.4:1
	10.100 MHz	1.3:1
20 meters	14.340 MHz	1.2:1
	14.250 MHz	1.1:1
	14.185 MHz	1.4:1
	14.150 MHz	1.5:1
17 meters	18.168 MHz	1.2:1
	18.110 MHz	1.3:1
15 meters	21.405 MHz	1.2:1
	21.325 MHz	1.1:1
	21.275 MHz	1.2:1
	21.165 MHz	1.3:1
12 meters	24.990 MHz	1.1:1
	24.900 MHz	1.1:1

Using a 70" Whip
Band	Frequency	SWR
*80 meters	4.025 MHz	1.2:1
	3.995 MHz	2.0:1
60 meters	5.292 MHz	1.9:1
	5.225 MHz	1.3:1
	5.215 MHz	1.9:1
40 meters	7.295 MHz	1.9:1
	7.255 MHz	1.4:1
	7.195 MHz	1.9:1
30 meters	10.150 MHz	1.5:1
	10.100 MHz	1.3:1
20 meters	14.335 MHz	1.3:1
	14.295 MHz	1.2:1
	14.205 MHz	1.2:1
	14.105 MHz	1.4:1
17 meters	18.168 MHz	1.2:1
	18.110 MHz	1.4:1
15 meters	21.400 MHz	1.4:1
	21.325 MHz	1.3:1
	21.275 MHz	1.2:1
	21.165 MHz	1.3:1
12 meters	24.990 MHz	1.1:1
	24.900 MHz	1.1:1
10 meters	28.805 MHz	1.6:1
	28.605 MHz	1.4:1
	28.375 MHz	1.3:1
	28.155 MHz	1.2:1