DB11 Yagi Antenna
With the DB11, you don’t have to give up performance to fit the antenna into a small space!
The DB11 is the smallest of our Yagi antennas that uses loop technology. This is a distinctive advantage, allowing for a 40% smaller size platform with excellent performance. The DB11 uses an integral coax switch to select which one of the three elements are driven to give equal performance in forward and reverse directions. The control of the Antenna and Coax switch is integrated into the SDA100 controller for effortless tuning. The DB11 is our only antenna without the optional 6m passive element kit – the spacing of the 3 elements turns out to be ideal for 6m as well.
With two active elements on 20m and three active elements above 20m, an average of 7 DB of gain, and 20 DB front/rear ratio is obtained on each band.
| Specification | DB11 |
| Boom Length | 11 ft / 3.35 m |
| Boom diameter | 1.75 in / 4.45 cm |
| Longest Element | 19 ft / 5.79 m |
| Turning Radius | 10.5 ft / 3.20 m |
| Weight | 63 lb / 28.57 kg |
| Available saddles for mast (2.0 in / 5.08 cm is standard) |
1.75, 2.0, 2.25, 2.5, 3.0 inch 4.45, 5.08, 5.72, 6.35, 7.62 cm |
| Wind Load | 5.9 sq ft / 0.54 sq m |
| Wind rating | 100 MPH (EIA-222-C) |
| Adjustable elements | 3 |
| Power Rating | 3 KW |
| Feed points | 3 |
| Frequency coverage | 13.8 – 54 MHz |
| Tuning Rate | 1.3 ft per second |
| Performance for Ham Bands | DB11 Gain DBi | DB11 Front to Rear, DB |
| 20M | 6.41 | 19.53 |
| 17M | 7.02 | 16.19 |
| 15M | 7.08 | 21.35 |
| 12M | 7.25 | 23.17 |
| 10M | 7.46 | 24.55 |
| 6M | 8.76 | 15.09 |
See More : Link
“Dr. Philip J. Erickson, W1PJE, is an assistant director and head of the Atmospheric and Geospace Sciences group at Haystack Observatory, operat... Read more
100MHz to 750MHz Log Periodic Array Description InnovAntennas design and build Log Periodic Arrays for any bandwidth and for any purpose. Our LPDA... Read more
It seems that more and more, amateurs are facing increasingly strict HOAs. This antenna is not designed for the backpacker, but rather for the QRP ama... Read more
Recent Posts
MIT RADIO SOCIETY LECTURES ON RADIO TECHNOLOGY NOW FREELY AVAILABLE ON YOUTUBE
New log periodic array from InnovAntennas with parasitic element enhancement
W4OP Loop Antenna
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fsteppir-db11-yagi-antenna-6-m-20-m%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
){kind=link}