Moonraker AMPRO-40HP 40m 7MHz 600W

The Moonraker AMPRO-40HP is a high-power monoband HF mobile antenna designed for operation on the 40 metre / 7MHz amateur band.

This antenna uses a helically wound construction, with a main fibreglass section and adjustable stainless steel top whip, allowing the antenna to be tuned for the best SWR within the desired frequency range.

With an approximate total length of 245cm, 600W listed maximum power and standard 3/8" / 3/8-24 connection, the AMPRO-40HP is suitable for compatible mobile mounts, heavy magnetic bases, boot/trunk mounts, bumper mounts or other systems designed for HF mobile antennas with 3/8 thread.

The listed bandwidth is 60kHz, typical for loaded HF mobile antennas on lower bands, so retuning or an antenna tuner may be required depending on the exact operating frequency. Real performance depends heavily on the installation, ground plane, vehicle mounting position, quality of the ground connection, coaxial cable and surrounding environment.

It is a practical solution for radio amateurs wishing to operate on 40m from mobile, portable or temporary installations, while keeping the antenna relatively compact compared with the wavelength of the band.

Main features

Monoband HF mobile antenna
Manufacturer / brand: Moonraker
Model: AMPRO-40HP
Reference: AMPRO40HP
EAN: 5056109287854
Band: 40 metres
Operating frequency: 7MHz
Antenna type: helically wound mobile antenna
Listed maximum power: 600W
Approximate length: 245cm
VSWR / SWR: 1.5:1 or better, depending on installation and tuning
Bandwidth: 60kHz
Connection / thread: 3/8" / 3/8-24
Main section: fibreglass with helical loading coil
Top whip: adjustable stainless steel whip
Approximate weight: 600g
Construction: black anti-static covering and chrome-plated brass fittings
Main application: HF mobile operation on the 40m band
Requires suitable ground plane
Requires compatible 3/8 mount
Requires SWR adjustment before transmission
Mount, magnetic base and coaxial cable not included unless otherwise stated

Recommended applications

HF mobile amateur radio
40 metre band operation
Vehicle mobile installations
Portable and temporary operation
Field activities
POTA, portable and support communications
Compact HF stations
Use with compatible 3/8 mounts
DX contacts on 7MHz, depending on propagation conditions
Experiments with monoband HF mobile antennas

Important note

Before use, always confirm the mount compatibility, 3/8 thread, permitted power, operating frequency, ground connection, ground plane, coaxial cable and SWR adjustment.

The Moonraker AMPRO-40HP is a loaded HF mobile antenna and is highly installation-dependent. For best performance, it should be mounted where a good ground connection is available and as clear as possible from nearby metal obstructions. On vehicles, antenna location directly affects tuning, efficiency and usable bandwidth.

The 60kHz bandwidth means the antenna should be adjusted for the part of the band where it will be used most often. Before transmitting, always use an SWR meter or antenna analyser to protect the transceiver.

Transmission on amateur radio bands requires a valid licence and must comply with the regulations applicable in the country of use.