Cushcraft R8 multiband HF Vertical 6-40 Metres
HF multiband vertical antenna
6, 10, 12, 15, 17, 20, 30, and 40 Meter
This multiband vertical design provides 8 band cover that includes bands 6, 10, 12, 15, 17, 20, 30 and 40 meters. Cushcraft reached an important step forward in the development of an HF multiband vertical antenna that was specifically designed for use with a tuner and amplifier. As a result, the antenna better addresses the characteristics of the Shack contemporary ham.
Multiband vertical antennas have always been complicated designs with components more likely to be damaged by high levels of mismatched transmission power such as the platforms they are attacking. Before the use of tuners spread, the antenna was protected by the same safety mechanisms that protected the drilling rig. Now, the automatic power reduction circuits of the past are actually becoming a second layer of protection circuits. Although the auto-tuner offers ham with a more versatile device in addition to protecting rig components, the antenna is more vulnerable than ever. With the push of a button, very high loads can be imposed on the antenna. The result for the antenna can be catastrophic failure in some cases.
The R8 is the first vertical multiband designed for the rigors of contemporary operating conditions. Although the antenna is best used within is 2.0:1 VSWR band, you can support a 3.0:1 full-power VSWR disfit for typical operating intervals. Now amateur radios can take full advantage of the versatility that a tuner used in combination with a vertical HF multiband antenna can give them. For strong wind environments, add the R8GK Guy Kit-three
point non-conductive type system.
The R8 offers 360-degree (omni) coverage on the horizon and a low angle of radiation in the vertical plane for a better DX.