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M2 Antennas Polarity Switch Kits

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M2 Antennas Polarity Switch Kits are specialized replacement driven elements with built-in relays that are designed to work on M2 Antennas circularly polarized ante
M2 Antennas Polarity Switch Kits are specialized replacement driven elements with built-in relays that are designed to work on M2 Antennas circularly polarized antennas for the highest possible antenna performance for your satellite communications system.

Circularly polarized beams are typically built with only right-hand circular polarization. However, attenuation of satellite signals can occur when attempting to receive the RF wave fronts of an opposite rotational direction, which is common in satellite communications

Polarity Switch Kits modify the original antennas by adding the capability to switch betwee
M2 Antennas Polarity Switch Kits are specialized replacement driven elements with built-in relays that are designed to work on M2 Antennas circularly polarized antennas for the highest possible antenna performance for your satellite communications system.

Circularly polarized beams are typically built with only right-hand circular polarization. However, attenuation of satellite signals can occur when attempting to receive the RF wave fronts of an opposite rotational direction, which is common in satellite communications

Polarity Switch Kits modify the original antennas by adding the capability to switch between right-hand and left-hand circular polarization. This additional level of antenna capability allows the reception of both types of circularly polarized wave, for maximum signal capture.

Switching is accomplished with the addition of a single DC control wire carrying positive 12 volts to the control terminal on the Polarity Switch Kit's replacement driven element block. Originally designed for NASA for many of their 100 to 500 MHz satellite and spacecraft applications, these Polarity Switches are now used by many Amateur VHF/UHF enthusiasts to enhance performance and flexibility for both terrestrial and satellite applications.

The heart of each unit is a small, low loss coaxial switch carefully designed into the driven element block. Only one driven element block Polarity Switch Kit is required to achieve full right hand and left hand selection. They can handle 250W of continuous RF transmission power and present losses that are less than 0.1 dB.

Installation is easy and involves only the removal of one of the original Driven Element assemblies and then mounting the Polarity Switch Kit in its place. Many Satellite enthusiasts build their new M2 Circularly Polarized Beams with Polarity Switch Kits, so their antenna systems will be fully functional from the start!

Get all of your M2 Antennas VHF/UHF and Satellite products from DX Engineering today!

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Polarity Switch Kit, 300-500 MHz, 250 W, 40 dB Isolation, Less Than 1.2:1 SWR, 12 Vdc, 80 mA, Kit

Part Number: MSQ-PS70CM

Not Yet Reviewed

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Polarity Switch Kit, 100-250 MHz, 250 W, 50 dB Isolation, Less Than 1.2:1 SWR, 12 Vdc, 80 mA, Kit

Part Number: MSQ-PS2M

Not Yet Reviewed

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

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