HF Difan Antennas
1.6-30 MHz & 4.5-30 MHz
Type 1001-1002
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The DIFAN is a wide band delta antenna designed to radiate high-angle skywave signals for short to medium range HF communications.  It has a low angle takeoff at the higher frequencies to provide medium to long range capability.  The DIFAN system is supplied with a single lightweight aluminium lattice support mast, guys, anchors and fixings. The antenna array is constructed of phosphor bronze comprising 3 pairs of delta travelling wave antennas linked, via a third terminating delta to a terminating load. This method of feeding and terminating the elements makes the antennas performance substantially independent of ground conditions therefore a ground screen system is not required.  Optional items such as mast earthing kit, tool kit, falling derrick kit and aviation obstruction warning light are also available should they be required. Please ask for further details.

Electrical Specification

Model 1001

Model 1002

Frequency (Transmit):

1.6 – 16MHz

4.5 – 22MHz

              (Receive):

1.6 – 30MHz

2.0 – 30MHz

Power:

1KW Average

1KW Average

VSWR (Max):

2.5:1

2.5:1

Input Impedance:

50

50

Input connector:

N

N

Polarisation:

Horizontal

Horizontal

Mechanical Specification

 

 

Windspeed no ice:

160Km/h

160Km/h

Mast height:

14.8m

11.1m

Racal Antennas
Racal Antennas

Racal Antennas

Racal Antennas
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Chelton Ltd, Fourth Avenue, Marlow, Buckinghamshire. SL7 1TF
Telephone: +44 (0) 1628 472072 Fax: +44 (0)1628 482255