EQ-1 Wireless Communications System

The EQ-1 radio/communications and headset installation has the ability to move in and out of the cockpit without catching wires on controls or projections has been solved completely.
Your comfort level has improved and the quality of your reception and transmissions is now outstandingly clear.

SYSTEM REQUIREMENTS

To be able to maximise the system that you are installing, be it an EQ1 or any one of a variety of other wired systems some basic knowledge is required and rules need to be followed---
1. Good CLEAN power supply to your comms AND radio is essential, your battery is the cleanest source of power. ALL your connections must be made via direct paths to this source.
2. Good negative is also essential DO NOT just connect it anywhere on the airframe, connect it to the common negative terminal of the aircraft, these two rules alone will account for most of that crackle in your head (or the receivers head)
3. Good quality connectors on EVERY connection.
4. Correct aerial and matched impedance cable, use 50ohm cable for a 50 ohm aerial-- simple! Correct co-ax cable length is a myth, use what length you need for a tidy installation.
5. A good ground plane for your aerial with the aerial positioned as close to vertical (up or down) as possible and not obscured by struts or a kingpost.
6. Ensure the antenna is tuned for you installation for optimum performance.
7. Give your wiring room to move, no stretched connections, leave a small loop or sag to take up any vibration or movement then cable tie the rest securely.
8. Keep your headset connectors clean, a quick wipe of the connectors with a rag and a ‘hint’ of ‘Brasso’ works wonders in removing the oxides that build up on those old style connectors.
9. Match the headsets with the comms, match the comms with the radio and match the radio with the aerial. The only way to do this is to speak with the relevant manufacturers and ask the question of which components have been tested and are shown to be compatible to theirs.

This last point is the most difficult to achieve if you try using non recommended components. Each manufacturer has their own quirks that seem to befuddle the most experienced avionics expert when faced with the task of marrying equipment.
A high noise environment will tend to aggravate the problems so the attention to the above rules is a must for best system operation.

EQ-1 INSTALATION

The EQ1 installation is relatively simple.

• The base unit (comms box) is lightweight and can be positioned anywhere under the dash using Velcro.
• Three of the wires from the supplied wiring loom are then connected to—power, negative and master switch.
• The remaining plug is plugged into the radio (and will supply clean power to the radio) -- THAT’S IT three wires and plug it in: its now installed.

The PTT is wireless and one or multiple PTT’s can be positioned anywhere convenient.
Microlight pilots will Velcro one on the control bar and instructors will want one on the training bars as well.