For use 40-10m the antenna is acceptable as is. On 60 & 80 you would need an external ATU.

This is a great low cost way of getting on HF. Plug and play 80 through to 6m with perfect SWR when used with an external ATU.

Key Features/Specifications:

Type: Aluminium Vertical with Unun matched base

Frequency TX: 80 to 6M (3.5-57MHz)with external any tuner

Frequency RX: 2.0-90MHz

Max Power:400 Watts

VSWR: Less than 1.5:1 over all bands

Impedance: 50 Ohms

Base connection:SO239

Length:6m

Mast size: 25-42mm