Manley Remora Remote Control - Manual (Page 2)

First, the Remora radio-frequency remote control system consists of four parts.
1. The microprocessor-controlled battery-operated hand-held RF transmitter
2. The line-operated RF receiver
3. The microprocessor-controlled decoder and motor drive amplifier
4. The dual-deck motorized volume control
Using computer-based hardware on both sides of the system adds flexibility and allows enhanced features to be
added with little impact on system cost. For example, one such feature is the ability of the receiver-decoder to
discriminate between interfering signals, or other Manley Remora Remote enabled preamplifier models so that it
will react only to the prescribed remote transmitter. More below:
Features!
1. Remote transmitter and receiver operate under crystal-clocked microprocessor control for maximum signal
discrimination, flexibility, and system range.
2. The user may easily reprogram the user-number portion of the remote system's serial I.D. data stream. This
will eliminate the possibility of undesired operation due to remote command collisions.
3. Multi-color LED displays battery condition when the transmitter is in use, as well as two-digit user-number
programming status when in program mode.
4. Internal antennas contribute to sleek design aesthetics and eliminate possibility of damage to them had they
been subject to external exposure, while still providing good range.
5. Transmitter uses readily-available 9V battery.
6. Transmitter shell made of tough Lexan® for durability.
7. Real compression-dome push buttons instead of short-lived conductive silicone membrane pads are used
for years of dependable operation.
8. Highest quality motorized attenuator employed for critical audio path with very good inter-channel
matching (no silicon attenuators here!)
9. Two-step attenuator rotation speed: Press and hold a button; for the first half second the attenuator motor
runs slowly so the user may “nibble” at the volume setting. After half of a second, the motor rotation rate
doubles to move things right along.
10. Remote transmitter keep-alive interval keeps Remora Remote awake for a few seconds AFTER either
button is released, as indicated by the LED lamp glowing DIM green or red. Keeping the microprocessor
awake shaves a few dozen milliseconds off of the wake-up time, and helps to make the remote system more
responsive.
11. Flash memory inside both the transmitter’s and the receiver-decoder’s CPU eliminates the need for back-up
batteries or super-caps, etc.
12. Clever system architecture and user-programming procedure eliminates the need for dip-switches and
associated fiddling with awkward dip switch arrays.
13. Remora Remote consumes very little power which yields long battery life.
14. Electrically quiet operation preserves low noise floor of the preamplifier’s audio path.
15. Discrete passive volume control offers highest headroom option over silicon-based devices.
Precautions when using the Remora Remote system:
Use only fresh alkaline 9-volt (006P) batteries in the remote transmitter. The power draw is small during
transmit events, and nil when on standby. Unless the transmitter is used very heavily, the battery should last for
at least a year, or for about 10 hours of continuous transmit time. If the remote not used very often then the
battery life should equal its shelf life.
2
The remote transmitter operates on 433.9 MHz, and features a tuned antenna for reasonable efficiency and
extended battery life. As with other RF equipment of this sort, the range can be influenced if the antennas on
either side of the link are hampered by obstructions that deflect or attenuate the radio signal. Neither the
transmitter nor the receiver should be used or placed behind conductive surface planes, or on top of large metal
cabinetry, since this can effectively reduce or block the radio signals.