Feature overview
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Dual receivers with dual antenna connection
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Automatic antenna switching
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Calibrated receivers for seamless switching between antennas
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Visual indication of selected antenna
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Standard 2.4GHz band 8 channel frequencies
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Additional 2.4GHz band 12 channel frequencies
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Dual, buffered AV outputs
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Automatic user configurable low battery alarm
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High bandwidth stereo-audio
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>-90dB typical sensitivity
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Single-cable ImmersionRC ground station link
Overview
One of the challenges of video downlinks on high frequency bands, such as 2.4GHz, is the
signal breakup due to multipathing. ‘Nulls’ in the received signal occur when the direct signal
from the transmitter arrives at the same time as a reflected signal, which happens to be 180
degrees out of phase with the direct signal.
Smart antenna design, such as ImmersionRC’s circularpolarized ‘SpiroNET’ antenna family,
can reduce this effect, but it cannot completely eliminate it.
The Duo2400v3, the fourth in ImmersionRC’s series of 2.4GHz diversity receivers, can
significantly improve reception in the presence of multipathing, by intelligently switching
between two independent receivers when signal quality drops.
Another useful application of diversity switching is to select the best signal from two
antennas, for example, one omnidirectional, and one directional, or a couple of directional
antennas pointing in different directions.
Version 3 of the Duo2400 comes with 20 selectable channels support, covering Lawmate,
standard ‘ImmersionRC/FatShark/Airwave’ channels, international band and USA bands.
Bands can be scrolled through with the Band button and channels with the Channel button.
The Duo 2400 is also one of the first in a line of ‘smart’ receivers, designed for singlecable,
plug and play, integration with the ImmersionRC Ground Station system.
Power, Audio, Video, and a bidirectional data link, are all passed through a single MiniDin
connector, connected to the Ground Station.
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