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Diversity Demon is a video controller that is used
to bridge three wireless video receivers together.
Multiple receivers are used to enhance signal
quality. It is optimized for RF demanding
applications such as FPV drone racing.
FEATURE SUMMARY
Uses your existing wireless composite
video system (NTSC or PAL compatible).
Supports 2-receiver and 3-receiver diversity configurations.
Two audio channels for Mono or Stereo applications.
Very high video bandwidth, superb A/V signal quality. No Latency.
Two front panel mounted A/V outputs, fully buffered.
Compact Size, 5.9 x 4.3 x 1.5 inches.
Operates on 6VDC (2S LiPo) to 25VDC (5S LiPo), 50mA typical.
WHAT IS IT?
Diversity Demon is an intelligent video switch with three A/V (audio/video) inputs that are
multiplexed into a single output. It uses sophisticated realtime video processing technology that
monitors the video signals from three user supplied wireless A/V receivers. If the image begins
to degrade it is switched to a higher quality video source. The video detection is designed for
seamless switching transitions.
Diversity Demon can be used to create a spatial diversity antenna system. This configuration
involves placing the antennas (from two or three receivers) at slightly different locations. As little
as a few inches apart is enough to offer some signal improvement. Spatial diversity can be used
to reduce multipathing interference.
It is also possible to install vastly different antennas on the three video receivers to enhance the
overall antenna performance. For example, you can combine a low gain omni with a medium
gain patch antenna and a high gain directional antenna. This configuration would act as a
hybrid antenna system that automatically switches from short to long range. Or maybe you want
to expand the effective beamwidth of your antenna system? If so, then use three similar
receivers/antennas to triple the RF beamwidth.
The antenna strategy you choose will depend on your operating environment and application
requirements. Although Diversity Demon cannot eliminate all video problems, using it with a
carefully chosen receiver/antenna setup will help reduce reception issues.
Diversity Demon ©2016-2017 DIGITAL PRODUCTS COMPANY
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Summary of Contents for DPCAV DIVERSITY DEMON FPV PRO RACE EDITION
- Page 1 IVERSITY EMON FPV P DITION IVERSITY IDEO ONTROLLER Diversity Demon is a video controller that is used to bridge three wireless video receivers together. Multiple receivers are used to enhance signal quality. It is optimized for RF demanding applications such as FPV drone racing. FEATURE SUMMARY Uses your existing wireless composite video system (NTSC or PAL compatible).
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Page 2: Installation Information
INSTALLATION INFORMATION DC P OWER ONNECTIONS A wide voltage range is accepted (6V to 25V DC). All power jacks are compatible with 2.1mm x 5.5mm DC power plugs. The center pin is (+) positive polarity. A summary of the four DC power jacks is as follows: 6-25V DC IN (Front Panel): DC Power input, see Figure 1. -
Page 3: A/V Output Connections
A/V OUTPUT CONNECTIONS A female RCA adapter cable is provided for connecting your monitor or goggles. (Note: A second cable can be purchased if both AV output jacks are needed.) The RCA cable is installed on the front panel’s AV1 or AV2 phone jack. See Figure 3. - Page 4 VIDEO RECEIVER (vRX) CONNECTIONS Female RCA adapter cables are provided for connecting your wireless Video Receivers (vRx’s). The RCA cables are installed on the rear panel’s RX1, RX2, and RX3 phone jacks. See Figure 5. Note: If only two vRx’s are used then install them at RX1 and RX2.
- Page 5 Rotate the VID2 and VID3 adjustments (trimmer Pots) to their full MAX setting (fully CW). While observing the monitor / display, repeatedly (about once per second) press the front panel pushbutton switch and cycle through each video source (RX1-RX3). If only two receivers are used then ignore the missing image that corresponds to the empty RX position.
- Page 6 RONT ANEL WITCH The front panel push switch is used to control several features: Five Second Manual Video Switching Long Duration Manual Video Switching Low Voltage Alert Silence System Configuration Programming ECOND ANUAL IDEO WITCHING During normal operation the video source can be manually switched by briefly (less than ½...
- Page 7 SYSTEM PROGRAMMING INSTRUCTIONS Diversity Demon must be configured to your requirements. The system programming feature allows you to set the following parameters: Video Type (NTSC/PAL). Switching Alert Chirp (On/Off). Missing Receiver Red LED Alert (On/Off). Low Battery Alert Beep (On/Off). Low Battery Alert Voltage (6.0V - 24.9V).
- Page 8 The LED patterns are arranged as simple patterns of short and long blinks. The following table outlines the blink codes ( = short blink, = long blink). STEP VID2 LED DESCRIPTION Video Type, 1=NTSC / 2=PAL Switching Alert Chirp, 1=ON / 2=OFF Missing RX Red LED Alert, 1=ON / 2=OFF Low Battery Alert Beep, 1=ON / 2=OFF Main Low Battery Alert Voltage, 6 - 24 VDC...
- Page 9 S S S Step 3: Missing Receiver Red LED Alert Range: 1= On, 2= Off. This entry is used to control the RX1-RX3 Red LED alert that occurs when a wireless video receiver is disconnected. When turned On the LED that corresponds to the unplugged receiver will flash Red to alert the user of a video connection issue.
- Page 10 S S L L Step 8: Video Balance Adjustment Range: 1=On, 2=Skip (exit) The Video Balance Adjustment step is used to ensure that the wireless receivers’ video levels are closely matched. This minimizes the brightness change that may occur when a RX source is switched.
- Page 11 WHEN SERVICE IS NEEDED DURING THE WARRANTY PERIOD: 1. Contact DPC using the “contact us” link instructions found at www.dpcav.com. Please provide the model name, serial number, purchase date, and specific details to the problem. If DPC determines that service is required they will issue a Return Authorization (RA) number and request that you return the unit.
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Page 12: Programming Summary
PROGRAMMING SUMMARY Short Blink Long Blink Video Type Range: 1= NTSC, 2= PAL Switching Alert Chirp Range: 1= On, 2= Off S S S Missing RX Red LED Alert Range: 1= On, 2= Off S S S S Low Battery Alert Beep Range: 1= On, 2= Off Main Low Battery Voltage (N) Range: 6 to 24 VDC (in 1 volt increments)
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