Overview

DX Engineering PS-3B PRO-STACK Three Antenna Phasing Units

DX Engineering PS-3B PRO-STACK Three Antenna Phasing Units offer the ultimate performance for combining three identical Yagi or Log Periodic directional antennas and may be used for vertical antennas in a phased array that cover any band, from 160 through 10 meters. Pro-Stack frequency independent broadband phasing devices operate optimally with three properly spaced mono-band antennas, but can be used with three identical stacked multi-band beam antennas, for pattern and null steering that wins contests and snags the rarest DX!

Signals arrive at your antenna system from different azimuth directions and different elevation angles. Adding a stacking phasing system to a rotational array adds the ability to steer the pattern of the antenna array in two planes, azimuth and elevation, and to move the major lobe and nulls. The greatest advantage of Pro-Stack arrays is the ability to move harmful pattern nulls away from signal arrival angles. While gain makes a marginal improvement, moving a 20 to 40 dB null can be a phenomenal change, so the Pro-Stack can make the difference between a barely readable and a strong signal, providing the performance edge needed to work rare DX - and win contests.

DXE-PS-3B Pro-Stack Phasing Units are 50 ohm relay systems that handle up to 5 kW. A separate user-supplied automated controller or the optional DX Engineering DXE-EC-PS3 Control Console for these 12-position rotary switch selections:
- Three antenna ports in phase, default with no power to control console.
- Antenna port 1 only
- Antenna port 2 only
- Antenna port 3 only
- Port 2 out of phase, Port 3 in phase
- Port 1 out of phase, Port 3 in phase
- Port 1 out of phase, Port 2 in phase
- Ports 2 and 3 in phase
- Ports 1 and 3 in phase
- Ports 1 and 2 in phase
- Ports 1 and 2 in phase, Port 3 out of phase
- Ports 1 and 3 in phase, Port 2 out of phase
- Port 1 out of phase, Ports 2 and 3 in phase

These PRO-STACK units may also be used for other applications requiring these feedline selections. To ensure lowest SWR, impedance matching automatically changes when any antenna is disabled. By switching between antennas at different heights above ground and/or changing the phase relationship between multiple antennas. The old standard system in stacks was to activate or disable specific antennas in the stack to change pattern. However, with the Pro-Stack system, gain remains higher when all antennas are driven and phase is changed, plus this system allows phase inversion as well as the ability to switch any single antenna out of the array.

DXE-PS-3B Broadband Phasing Units provide the greatest flexibility for three identical antennas. This relay unit contains a broad-bandwidth high-power 2:1 impedance matching transformer. This eliminates common requirements of using mixtures of 75 ohm and 50 ohm phasing or delay cables for impedance matching. Feedlines to each antenna from the relay unit must be the same cable of the same length and match the antenna impedance.

DXE-PS-3B Pro-Stack Broadband Three Antenna Phasing Units feature:
- Power Handling up to 5 kW
- Broad band coverage on 160-10 meters
- RF Shielded Weatherproof Housing - unique protection
- DXE-PS-3B has High-RF tolerant, silver - PTFE UHF connectors
- DXE-PS-3BDIN has Amphenol Connex 7/16 DIN Panel Connectors
- DXE-PS-3BN-P are made with high-quality silver-PTFE Type N female connectors
- Proven high current DX Engineering RF Relays
- Safe 12 volt dc relay operation
- MOV surge protection on control lines
- RoHS compliant assembly

Get a DX Engineering PS-3B PRO-STACK Three Antenna Phasing System for your winning antenna array.

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