For the HF service there are a number of products available.

Coaxial HF traps designed for nominated frequencies (HFTP), provide operation for 2 or 3 frequency wire dipoles. For correct operation of a wire dipole a balun is required, model (BN30).
Helically wound mobile whip aerials are available in a single frequency. These are wound on solid fibreglass blanks with a LVR heat shrink covering. (HFH1FLW)
Model
Description
Image
BN30
Balun – 1 to 30 MHz 1:1

HFTP
HF Traps – For Multi Frequency Dipole

HFH1FLW
HF Helical Aerial – Light Weight with Adjustable Tuning
