2 meter 9 Elements Antenna The Best Portable and EME PA144-9-5A

165,00 

144 MHz 2 meter portable antenna 9 elements for VHF Contests and EME.

Excellent 2 meter portable antenna 9 elements. Packed “Checked Baggage” Length 119 cm. PA144-9-5A.

Highest Class Wide band Antenna 144 to 145 MHz. Perfect to take on VHF Contest or EME expedition. Designed to pass Airline Luggage Restrictions. Excellent Low noise design.

2 meter portable 144 MHz antenna 9 elements

The best 9 elements Yagi antenna with highest possible gain for its length. Great for Terrestrial VHF Contest or EME work.

Electrical Specifications 2 meter
Frequency Range:
144 – 145 MHz
Free Space Forward Gain: 14.3 dBi
Front to Back Ratio:
32 dB
3 dB Horizontal Beamwidth: 37°
3 dB Vertical Beamwidth: 40.2°
G/T tbd.
Polarization Horizontal or Vertical
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: More than 500 W, 1500 W available
Matching Method: Direct feed through common mode balun
Connector: “N”
Mechanical Specifications 2 meter
Number of elements: 9
Element Diameter: 8 mm Aluminum tube
Dipole Diameter: 8 mm Hard Copper tube
Longest element: 1040 mm
Element Mounting Position: Below the Boom
Balun and Connector: Included
Boom Length: 4.67 m
Boom Size: 30 x 30 mm + 20 x 20 mm
Number of Boom Pieces: 4
Guy rope support: Not necessary. Strong boom.
Mounting Mast Diameter: 43 – 70 mm 1-1/4″ – 2-3/4″
Survival Wind Speed: 150 km/h
Transportation Length: 1.19 m
Antenna Weight: 6.5 kg
Gross Weight:  8.5 kg

 

Portable 9 elements 2 meter Yagi Low Noise Design

2 meter Yagi Antenna 9 element Vertical Stacking Distances for F/S -12.5 dB:

2 Antennas 2.95 m for Gain 17.2 dBi (+2.9 dB)
4 Antennas 3.05 m for Gain 20.2 dBi (+5.9 dB)

 

144 MHz 9 element Yagi Antenna Horizontal Stacking Distances for F/S -12.5 dB:

2 Antennas 3.15 m for Gain 17.2 dBi (+2.9 dB)
4 Antennas 3.3 m for Gain 20.2 dBi (+5.9 dB)

 

Lower gain and better suppression of sidelobes. Sometimes good in urban (high noise) area:

Horizontal stack 2.6 m for gain 16.93 dBi F/S< -18.7 dB

Horizontal stack 2.75 m for gain 17.04 dBi F/S< -16.5 dB

Vertical stack 2.5 m for gain 16.95 dBi F/S< -17 dB

Or anything between…

 2m VHF contest and EME Low Noise Antenna. Two antennas divider and two LMR-400 cables.

Packed to pass Airline Checked-in Luggage Size Restrictions.

2 meter Low Noise Antenna PA144-9-5A VHF Contest EME Expedition

 

9 element 144 MHz Contest antenna, low noise pickup. Dipole, balun and “N” connector detail.

2 meter Yagi Antenna Dipole Balun and Connector View PA144-9-5A

 

Bracket view of PA144-9-5A VHF Terrestrial Contest or EME Antenna. Bracket and Boom join view.

1444 MHz Yagi Antenna Bracket View Boom Join View

 

By Order Wing Nuts for easy assembling and disassembling.

144-145 MHz portable Yagi bracket with wing nuts

 

2 meter Low noise antenna 9 elements. Different boom sizes view joins.

Antenna Boom to Boom Join Different Size 30 x 30 and 20 x 20 mm

Perfect SWR on built 9 elements 2 meter portable Low Noise Antenna. Less than 1.15 at the band ends.

On working frequencies less than 1.05.

Contest and EME Yagi 9 elements measured SWR

 

Another view of perfect Low Noise Antenna PA144-9-5A.

144 MHz Competitions Yagi Low noise design Antenna PA144-9-5A

Excellent choice 9 element EME and VHF Contest Tropo Yagi antenna.

Lee WW2DX will use this antennas on his EME expedition CY9C

Ultimate design with with latest professional full-3D electromagnetic modelling software.

Not possible with EZNEC Pro/4 – NEC4.2 engine, 4NEC2, EZNEC, YO or AO except by accident. 
Or tinkering with antenna elements or spacings.
 


Additional information

Weight 3.2 kg