144 – 146 MHz CROSS 7+7 Elements Yagi Antenna. Excellent for EME MAP65 and Satellites. Used in “Big Leo Pack“

This CROSS antenna on about 3.5m boom is designed for a complete 2m band. Antenna covers 144 – 146 MHz.

Wide-band operation with low SWR. Could be used for any radio modes like CW, SSB, FM, JT65B etc.

All kind of communications like EME, DX-ing, Conesting, Repeater work, LEO satellite…

Represents a part of “Big Leo Pack” with added RHCP Kit.

For satellite use in Big Leo Pack mount the antenna on fiberglass pipe 40mm with wall at least 8mm or full fiberglass rod 40 mm.

 

 

Electrical and mechanical specifications of PA144-CROSS-14-3.5AP

 

Electrical Specifications PA144-CROSS-14-3.5AP
Frequency Range:	144 – 146 MHz
Free Space Forward Gain:	12.7 dBi
Front to Back Ratio:	32 dB
-3 dB Horizontal Beam width:	43.2°
-3 dB Vertical Beam width:	50.2°
Polarization	Horizontal and Vertical
Nominal Input Impedance:	50 Ohms
SWR Across Entire Band:	< 1.2
Maximum Power Input:	2 x 1500 W
Matching Method:	Direct feed through common mode choke (current balun)
Connectors:	2 x “N”

 

2 meter CROSS Yagi Antenna with 7+7 elements PA144-CROSS-14-3.5AP for EME and part of Big Leo Kit-Pack Azimuth Radiation Pattern

 

 

2m CROSS Yagi Antenna 14 elements for MAP65 and Big Leo Kit – Pack PA144-CROSS-14-3.5AP Label View

 

 

Mechanical Specifications PA144-CROSS-14-3.5AP
Number of Elements:	7 + 7 (14)
Element Diameter:	8 mm Aluminum tube
Dipole Diameter:	8 mm Hard Copper tube plastic coated
Longest Element:	1040 mm
Element Mounting Position:	CROSS antenna – 2 Sides
Balun and Connectors:	Included
Boom Length:	3.5 m
Boom Size:	Tapered Boom 30×30, 20×20 mm
Turning Radius:	2 m
Number of Boom Pieces:	3
Guy rope support:	No, strong boom
Mounting Mast Diameter:	43 – 70 mm 1-11/16″ – 2-3/4″ OD
Clamp:	“RA” Bracket
Survival Wind Speed:	150 km/h
Wind Load:	0.13 m2
Net Weight:	4.3kg
Gross Weight:	6 kg
Transportation Length:	119 cm

 

2 meter CROSS Yagi 14 elements PA144-CROSS-14-3.5AP-RHCP Big Leo Pack Measured Coupling Between Antennas (Orthogonality)

Excellent results achieved -30 dB. Much better than Leif SM5BSZ suggested:

“The NEC simulations above show that an isolation of 20 dB is sufficient. This means that the obvious way of checking a cross Yagi is to connect one of the feed lines to a transmitter with known output, and a power meter and a dummy load to the other. The attenuation is then measured directly through the power arriving at the dummy load. If it is below -20 dB compared to the transmitted power everything is fine. ”

 

 

2 meter CROSS Yagi 7+7 elements PA144-CROSS-14-3.5AP RHCP Big Leo Pack Elevation Radiation Pattern

 

 

By adding RHCP Kit Leo satellites will be easy to work. The best Leo 2m CROSS antenna “Big Leo Pack” :

 

 

All 2m CROSS antennas are here: 2m CROSS antennas

This antenna is used in Big LEO Pack

Twin Sister with the same 3.5m boom as 70cm CROSS antenna used in Big Leo Pack

2m CROSS Antenna PA144-CROSS-14-3.5A at SM0TGU

This is the best antenna I have mounted so far when looking at material quality!
Initial test via RS-44 satellite is very good, more gain compared with my old 6 el Yagis. I also think the antenna has less noise.

Lars SM0TGU