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MHB-65
Monopole High Band 6.5 metre

This monopole antenna has been designed for HF receiving applications where high reliability and stable performance are required. The antenna is suited for use in an array. The antenna consists of two rugged galvanised steel tubes with a ceramic insulator fitted approximately one-third of the way up from the base of the antenna.
This antenna will provide good performance from 1.5 to 32 MHz. For enhanced performance, models MLB-130 and MHB-65 can be used together to provide separate low band and high band receiving elements. Refer to external document link.
A transformer is fitted across the insulator that provides a suitable impedance transformation to a 50-ohm coaxial cable. The combination of elevated feed point height and transformer impedance provides a good impedance match over a wide operating bandwidth. This antenna will provide good performance from 1.5 to 32 MHz.  For enhanced performance, models MLB-130 and MHB-65 can be used together to provide separate low band and high band receiving elements. Refer external document link.

A radial earth mat of any length, consisting of up to 64 copper wires can be fitted to the base of the antenna, to stabilise antenna impedance and radiation patterns.

FEATURES / BENEFITS

  • Rugged, high-reliability construction
  • Proven performance over many decades in harsh environmental conditions
  • No antenna guys are required.
  • Cyclonic wind rating

 


Technical features

Electrical Specifications

Frequency Range MHz1.5 - 32
PolarizationVertical
Elevation Radiation PatternRefer to plot
Azimuth Radiation PatternOmni Directional
Maximum Power Rating kW0.25 average
Input ConnectorN-type socket
Impedance (unbalanced), ohmsΩ50

Mechanical Specifications

Mounting

Single concrete footing in ground

Wind Survival Rating (no ice) km/h (mph)337 (209)
Wind Load CommentSee Note 1

Temperature Specifications

Operating Temperature Range °C (°F)-20 to 70 (-4 to 158)

Material

Material - Earth MatUp to 64 Copper Radials, Length as required

PACKAGING INFORMATION

Shipping informationPacked weight [kg]Packed size [m]
MHB-653006.0 x 0.4 x 0.4 and 1.2 x 1.2 x 0.6

External Document Links

Notes

1. Wind ratings are calculated to Australia standard AS1170.2:2011