SPECIFICATIONS
Model
|
40M4LLDD 125MPH
|
| Frequency range |
7.0 to 7.3 MHz
|
| Gain over dipole |
5.36 dBd / 7.5 dBi
|
| Front to Back |
22 dB / Height dependent |
| Azimuth Beamwidth |
60° |
| Feed Impedance |
50 Ohms into 1:1 Balun |
| Maximum VSWR |
1.2:1 Typical, 2.01 Max |
| Input Connector |
SO-239 Standard |
Power Handling
|
3 kW |
| Boom Length / Dia. |
42' 2" / 3 X .125 wall |
| Max Element length |
51 ft. |
| Turning radius |
33 ft.
|
| Mast Size |
2" to 3" in. nom. or specify
|
| Wind Area / Survival |
13.3 Sq. Ft. / 125 MPH
|
| Weight / Shipping Wt. |
185 lbs. / 200 lbs. |
FEATURES
The recently upgraded, computer optimized, linear loaded, dual driven 40M4LLDD-125 gets the bandwidth and maintains performance across the band like no other 40 meter yagi. This was a huge challenge requiring the latest techniques incomputer optimization. Gain, Front to Back and VSWR are maintained nearly flat across the whole band. In addition, it is now better mechanically and easier to assemble. Only the tips of each element are different as all the linear loading settings are the same for each element. The shorting bars are now 2 piece, clamp type making solid long lasting connections. For foreign amaters, two tuning options are available. FULL BAND and LOW END ACCCENTUATED, but still broadband. The resulting design is head and shoulders above the competition in strength, durability and performance. The antenna has been designed to meet your crossband SSB contesting needs and give you years of enjoyment on the 40 meter band regardless of futre band plan changes.
Mechanically, the elements are sleeved double and triple wall to withstand continous winds of 125 MPH or the constant battering of highwinds and ice months at a time. This antenna WILL frustrate Mother Nature. The driven elements are split in the center and insulated with a solid 1-1/4 fiberglass rod. The parasitic element also have a solid 1-1/4" center aluminum center section. The 3 kW continuous, 5 kW peak, 1:1 balun compoetes the package. All hardware is stainless or galvanized except the U-bolts.
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