2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP 144-148MHz

The ability to change polarization is one of the main advantages of better terrestrial or EME stations, allowing them to operate even at times when other stations with only horizontal polarization become deaf due to the received signal in vertical polarization. 2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP 144-148MHz will allow you to achieve all four polarizations with just one click.

It does not matter do you want to work LEO Satellites that require RHCP polarization or terrestrial, EME, Contests, where in most cases, you will need just horizontal or vertical. You will always be at your best. Maximum polarization mismatch will be 3dB or less. With the possibility of fast switching to the most appropriate polarization.

 

2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP Appearance:

First, we will define the physical differences between CROSS and XPOL antennas:

 

CROSS antenna. A Yagi that has both horizontal and vertical elements mounted in a “+” format. One set of elements is parallel to the Earth, the other is perpendicular.
XPOL antenna. A Yagi that has 2 sets of elements oriented in an “X” format. One set of elements is oriented at +45° to the Earth, while the other is oriented at -45°.

 

How does 2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP work?

 

By changing the phase between the -45° Antenna and +45° Antenna, XPOL Polarization Switch will produce Horizontal, Vertical, Right Hand Circular (RHCP), and Left Hand Circular (LHCP) polarization according to the above “Truth Table”. The 2-Way divider is internal. Solved with high-power Teflon coaxial cable.

 

How to connect the XPOL Antenna with the XPOL Switch?

To set up the system, use two identical cables of any length. On one side, connect to the XPOL antenna. Let’s say on 2mXPOL18DX. On the other end of this cable, connect the -45° cable to the appropriate input on the polarization switch. Repeat the process for the +45° cable. The default polarization is RHCP, so you do not need a power supply to achieve RHCP.

 

How to connect 2m XPOL Polarization Switch H-V-RHCP-LHCP with the Advanced Sequencer?

 

 

When ordering an XPOL Switch with an Advanced Sequencer, we will completely connect the XPOL Switch and Advanced Sequencer with 1m long wires for free. Yours is just to extend them to your desired length.

 

Mechanical and Electronic Switching for XPOL Polarization Switch H-V-RHCP-LHCP

 

What do you need to use a 2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP?

1. The best is to use it with the Advanced Sequencer. The picture and PDF file are above.
2. The simplest solution is to use just a 4-way rotary switch. The picture and PDF file are above.
3. Electronic switching for station automation.

 

Connecting Two and Four Antennas with XPOL Polarization Switch H-V-RHCP-LHCP

 

2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP Measurements:

Excellent results with minimal insertion loss and super low SWR on all four polarizations:

XPOL Antenna Polarization Switch H-V-RHCP-LHCP, Horizontal Polarization SWR:

 

2m XPOL Antenna 1500W Polarization Switch, Vertical Polarization SWR

 

2m XPOL Antenna Switch H-V-RHCP-LHCP, RHCP Polarization SWR

 

2m XPOL Antenna Polarization Switch, LHCP Polarization SWR

 

2m XPOL Antenna 1500W Polarization Switch H-V-RHCP-LHCP Phase Difference Between Ports for RHCP

 

The advantages of using the XPOL antennas with the XPOL Switch:

1. High-gain Yagi antennas are sensitive to water.
   A horizontal antenna easily gets water droplets hanging all along the elements, causing the element diameter to increase, which detunes the antenna. This is no problem for vertical elements, on which there will be only one droplet hanging at the end.
2. Antennas in the XPOL configuration are insensitive to rain like a vertical antenna.
3. In the XPOL configuration, it is easy to produce circular as well as horizontal and vertical polarization just by changing the relative cable lengths (phases).
4. Due to the power dividing across both antennas, a 3000W XPOL switch with a 7-16 DIN input connector is possible. By order.

 

These ultimate product results are obtained using the Rogers substrate. Polarization switching should be performed exclusively “on cold” without any power applied.

 

Using XPOL Switch with antennas from other manufacturers:

If the distance between dipoles is about 0mm instead of 520mm or 90°, use this truth table: