Immersion RC Duo 5800 User guide

Duo 5800 Diversity Receiver

Twin receivers for best reception

Conventional receivers have one big drawback, they only allow for a single

antenna to be connected. If for some reason the reception fails there’s no

backup and you lose the signal. Not so with the Duo 5800 diversity
receiver. With its twin receivers it allows you to hook up two antennas
and the microcontroller inside will automatically switch to the receiver
with the strongest signal, without any switching noise or a change in the
image received.

With -85dB sensitivity per receiver the Duo 5800 is sensitive, very
sensitive. Paired with two flat patch antennas it will give you many
miles/kilometers of range. It is engineered from an FPV-er’s perspective
and hence has features to match. It’ll warn you when the receiver battery
runs low, or when switching antennas. The diversity receiver works best
with either a 2S or 3S LiPo battery and the low voltage warning can be set
accordingly, either automatically, or user configurable.

Equipped with two buffered AV outputs it allows you to connect your
goggles, as well as your recording device, without the need for Y-cables or
a signal splitter. Operating the Duo 5800 Diversity Receiver couldn’t be
simpler. After applying power it’ll beep the number of LiPo cells it has
detected and sets the low voltage warning to match. Selecting channels is
a breeze; four channels according to the frequencies used by Airwave and
another six as used by Lawmate are available with the press of a button.

ImmersionRC – Real Virtuality

 Twin receivers for best reception.
 Standard 5.8GHz band

frequencies: 5740MHz, 5760MHz,
5780MHz, 5800MHz, 5820MHz,
5840MHz, 5860MHz

 Automatic antenna switching.
 Calibrated receivers for seamless

switching between antennas

 Dual, buffered AV outputs
 Automatic of user configurable

low battery alarm

 Can be powered from 6-13V (< 9v,

or 2s recommended)

 High bandwidth stereo-audio.
 Single button operation for

channel selection

 Visual indication of selected

antenna

 Twin female SMA antenna

connectors

 FM Audio/Video Modulation
 -85dB typical sensitivity
 50 ohm antenna impedance
 1Vpp Video output level
 3V pp Audio output Level
 Small, light weight, durable,

anodized aluminum casing

 Weight: 169-grams
 Size : 103 x 90 x 23mm

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Operating the Duo 5800 Diversity Receiver

Operating the receiver is simple, as a single push-button allows for switching channels as well as setting

up user configurable settings. After applying power, and provided the ‘auto’ setting for the low voltage

warning is selected, it’ll beep the number of LiPo cells it has detected. So two beeps is a 2S LiPo and the

low voltage warning is set to 6V, three beeps is a 3S LiPo and the low voltage warning is set to 9V.

The Duo 5800 Diversity Receiver can tune to 7 channels in the 5.8GHz ISM band, these are frequencies
used by much of the existing 5.8GHz FPV equipment on the market, ensuring compatibility.
It will cycle through the 7 channels each time the button is pressed, with the last chosen channel stored
to be used when next powered up.

When the low voltage battery alarm is triggered the receiver will start to beep indicating you need to
charge or change the battery. Furthermore it’ll also beep when the input voltage is too low, less than 5V
or too high, more than 13V. At voltages less than 5V it will not work reliably, at voltages over 12V it will
run hot over a longer period of use, so this is not recommended. The power input is reverse polarity
protected; however it is good practice to always check polarity prior to applying power. The Duo 5800
diversity receiver power connector is center pin positive, which seems to be the norm.

Programming the Duo 5800 Diversity Receiver

The Duo 5800 Diversity Receiver can be configured to store user selected configuration settings. The
selected channel will always be stored so at power up it defaults to the last selected channel. Other
settings that can be configured are:

 Low voltage alarm threshold
 Rx Switch Tick enable/disable

Programming these settings is accomplished by using the push button, with feedback from the internal
beeper, in a manner similar to that used by most ESCs (Electronic Speed Controllers).

To enter the programming menu, hold down the push button for 5 seconds or longer. Once the
programming menu has been activated, the receiver will start cycling through the menu options, in the
order listed.

To change one of the items, wait for it to be ‘played’, and immediately after, press the button.

The receiver will then ‘play’ the current value, as a number of beeps, and will then start from the first
option, and play each option until the last. Selecting an option is simply done by waiting for it to be
played and pressing the button briefly.

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