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.

 

 

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 1-11/16″ – 2-3/4″ OD
Survival Wind Speed:	150 km/h
Transportation Length:	1.19 m
Antenna Weight:	6.5 kg
Gross Weight:	8.5 kg

 

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.

 

 

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

 

 

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

 

 

By Order Wing Nuts for easy assembling and disassembling.

 

 

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

 

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.

 

 

Another view of perfect Low Noise 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