Alpha Delta DX-A twin sloper 160/80/40
Twin sloper antenna for 160, 80 and 40 metres, 20 m and 18.2 m legs, with ISO-RES coils
The Alpha Delta DX-A is a twin sloper antenna for 160, 80 and 40 metres: it combines the DX effectiveness of a quarter-wave with the good bandwidth of a half-wave dipole.
Product description
It is installed like an inverted V on a tower or metal mast, which acts as the ground return. One leg is 20 m, the other 18.2 m. It uses stainless hardware, copper wire and Alpha Delta ISO-RES coils.
It is designed for unguyed towers (or towers with metal guys) with a beam on top, which acts as a capacitive hat and helps tune the two slopers.
Key features
Three low bands.
Mounts on the tower like an inverted V.
Efficient Alpha Delta coils.
Compatibility and notes
On a tower with other wire antennas, the slopers may slightly detune them. Some installations require a tuner.
Specifications
| Bands | 160 / 80 / 40 m |
| Type | Twin sloper |
| Legs | 20 m and 18.2 m |
| Materials | Copper wire, stainless hardware, ISO-RES coils |
| Mounting | On a tower or metal mast (ground return) |
HamRadioShop | HF wire antennas
