Antenna Polarization and Positioning for Analog Wireless Systems
One of the most common errors and causes of poor signal reception is antenna positioning and polarization. If both your transmitter and receiver antennas are not polarized alike, you can expect greatly reduced range and signal quality. This page will explain the different types of polarization as they pertain to your Trango wireless video system and how to verify that your antennas are polarized correctly.
SDR900H Point to Point system
Trango Systems recommends the use of horizontal polarization with SDR900H and PTZ-900 systems in order to reduce interference from cellular phones.
Eagle Plus™
The Eagle Plus systems come with a 10dB circular polarized antenna on the transmitter. The 10dB circular polarized antenna is also available for the receiver, and both come in either left or right circular polarization. The same polarization must be used for both transmitter and receiver. Either polarization of transmitter antenna can be used if the 24dB AD2401-24 is used on the receiver since this antenna uses linear polarization. (The AD2401-24 is best installed with vertical polarization to insure the best signal quality.)
Falcon Plus™
The Falcon Plus differs from the Eagle Plus by using only circular polarized antennas on both the transmitter and receiver. The two types of polarization that you will be concerned with are right-hand circular polarization and left-hand circular polarization. The polarization is built into each antenna during manufacturing and cannot be changed. The polarization can be determined by referencing the part number on the unit. If the suffix of the part number is R or RP, it is right-hand polarized. If the suffix of the part number is L or LP, it is left-hand polarized. The transmitter and receiver antennas must be polarized in the same direction for the system to operate. For example, if you are using a right-hand polarized antenna on the transmitter, you must use a right-hand polarized antenna on the receiver. The two different types of polarization allow you to increase the maximum number of systems that can be operated in a single path. You should only consider using a combination of polarizations if you are going to be using more than six systems in any given path.
For additional information, refer to our User Manuals on the Product Documentation page.
