70 MHz 4m 5 Element Yagi Antenna 4m5DX 70MHz Antennas Amplifiers

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5 Elements, 70 – 70.5 MHz – 4m Yagi antenna 4m5DX, can be assembled/disassembled pretty fast in portable use.

Antenna boom is tapered with tick 30 x 30 mm aluminum.

Tapered elements to reduce vibrations at the high winds, as well as reduced wind-load.

Survival wind speed is 160 km/h.

Antennas Amplifiers (AA) equipment is available in backorder only, and will be shipped within 10 to 15 days after the order.

More details

Data sheet

All antennas are assembled and tested before shipping. There is no exception. All our Ham Radio antennas are pre-tuned. Once the antenna is up in the air, you should expect extremely good SWR across whole designed range, true gain and F/B as given in the table. You have nothing to tune, nothing to measure. Just put number to number and enjoy the Ham Radio hobby.

Everything is included in the 5 element 70 MHz antenna box: Antenna, balun with connector and bracket. Yours is just to assemble and have fun! As all our antennas are, this Ham Radio antenna has been designed with professional full-3D EM modelling software. The antenna is calculated with the influence of boom, balun, connectors…

4m5DX Antenna is the best performance antenna in class length of 3m.

Power options:

Antenna does not have power limit, only limitations are in used balun and antenna connector. Default maximum power input is 850 W.

4m5DX antenna appearance. 5 Elements on 3 meter boom:

4 meter 5-element yagi 70mhz antenna PA70-5-3

Electrical and Mechanical specifications of 4m5DX antenna.

Electrical specifications of 4 meter 5 element Yagi:

Electrical Specifcations	4m5DX Antenna
Frequency Range:	70 – 70.5 MHz
Free Space Forward Gain:	10.3 dBi
Front to Back Ratio:	28 dB
3 dB Horizontal Beam-width:	52°
Polarization:	Horizontal
Nominal Input Impedance:	50 Ohm
SWR Across Entire Band:	< 1.2
Maximum Power Input:	850 W (or more by request)
Matching Method:	Direct feed through common mode choke (current balun)
Connector:	“N” default (SO 239 or 7/16 DIN by request)

Mechanical specifications of 70 MHz 5 element antenna:

Mechanical Specifications	4m5DX
Number of Elements:	5
Elements Diameter:	12 mm, extensions 10 mm
Dipole Diameter:	12 mm, extensions 10 mm
Longest Element:	2.2 meter
Element Mounting Position:	Below the boom
Balun and Connector:	Included
Boom Length:	2.93 meter
Boom Size:	30 x 30 mm
Turning Radius:	1.8 meter
Number of Boom Pieces:	2
Guy rope support:	Not necessary. Strong boom.
Mounting Mast Diameter:	43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp:	M8 Stainless Steel
Survival Wind Speed:	160 km/h
Wind Load:	–
Net Weight:	3.8 kg
Gross Weight:	5 kg
Transportation Length:	1.49 meter

4meter-5-element-yagi-70mhz-antenna-PA70-5-3-label

Former PA70-5-3B reference.

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