 |
80M1LL Dipole, Linear Loaded |
|
| Model | 80M1LL |
| Frequency range | 3.5-3.575 and 3.75-3.85 MHz Remote Switchable @ 12 VDC |
| Typical gain | -0.22 dBd |
| Front to back, Typical | 15-20 dB (very height dependent) |
| Beamwidth | 86° AZ |
| Feed impedance | 50 Ohms/ SO-239 ('N' opt.) |
| VSWR | 1.2:1 typ. / 100 KHz @ 2:1 |
| Input Connector | SO-239 ('N' opt.) |
| Power Handling | 3 KW Standard |
| Element Length | 85 ft. Linear Loaded |
| Element Diameter | 3", 2, 1-3/4, 1-1/2, 1-1/4, 1, & 3/4" tips |
| Turning radius | 47' |
| Wind Area / Survival | 8 sq. ft. / 100 mph |
| Weight / ShipWt. | 75 lbs / 85 lbs -Truck |
The 80M1LL is a real performer, both mechanically and electrically, when used as a dipole. It can also be used as a building block for future expansion to a 2 or 3 element beam antenna. The dipole can also be separated in half and used as phased !/4 wave verticals. Element halves start with 3" diameter tubing and taper through 2", 1-3/4", 1-1/2", 1-1/4", 1", 3/4" sections to the 1/2" tips. The 3" and 2" sections are separated by a rugged fiberglass insulator to allow for the linear loading (#10 copperweld). A solid 2" O.D. Fiberglass rod, sleeved to the 3" elements, serves as the center insulator.
The linear loading terminates above the boom and out of the element plane to reduce inductive cancellation and provide element support. Tip droop is less than 24" and looks better than some 40 meter elements. The 3 KW, 1:1 balun and phone / CW power switching relay are housed in a heavy wall ABS cannister at the center of the element. Relay switching requires 12 VDC supply.
http://www.m2inc.com email:sales@m2inc.com