Mobile frame HF antenna "KRUG"

Mobile frame HF antenna "KRUG"

Mobile frame HF antenna "KRUG"
Small-size zenith antenna is designed to be used as part of field, semi-stationary and stationary radio transmitting centers and HF complexes to provide omni-directional radio communication (without blind zones) for short and long distance paths up to 1500 km. It is designed for the use in various climatic conditions (including Northern, mountainous and seismic regions).
The product meets the requirements of GOST RV 20.39.304, GOST RV 20.39.305, GOST RV 20.39.303, in terms of the operational conditions refers to the implementation groups 1.3 and 1.10.


Purpose of the equipment

The product contains: zenith frame antenna with antenna tuning unit and a control unit.
Antenna tuning unit - a device that is installed in the instrument room and ensures the coupling of the product according to the control commands and the control of the radio transmitting set and a communications means complex, implements the operating frequency switching algorithm, provides the possibility of manual switching.
The antenna does not generate "SPIKE"- like noises.

Main technical characteristics:

Operating frequency range 2-12 МHz
Maximum output mean power 1 kW
Input resistance 50 Ohm asymmetrical
Radiation pattern in azimuth plane

Circular, with maximum oriented
to the zenith
Antenna gain from minus 5 to 3 dBi
TWR (travelling wave ratio) no less than 0,25
Operating temperature range from 40 °C to +50 °C
Guaranteed time of failure-free work no less than 3000 hours
Average service lifetime 12 years
Overall dimensions (WidthxDepthxHight), mm 1500х1000х300
Antenna weight with antenna tuning unit 38,7 kg
Overall dimensions of the antenna tuning unit (WidthxDepthxHight), mm 596х410х207
Antenna tuning unit weight 27,6 kg
Overall dimensions of control unit (WidthxDepthxHight), mm 506х250х87
Control unit weight 3,6 kg (control unit needs a power unit – it weights 6,6 kg)