SPEKTRUM DSM SYSTEM for 3PK
11-10-2005, 05:12 AM
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RE: SPEKTRUM DSM SYSTEM for 3PK
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Graupner/Spektrum DSM System for Robbe/Futaba Megatech 3PK and 3PK-B, 3PJ, T3VC/T3VCS
Introduction
Spektrum's DSM system offers the ultimate in radio link security. No longer do you have to worry about transmitters being turned-on on your frequency, waiting for the frequency clip to practice or interference caused from noisy motors, speed controllers or other interfering sources. The DSM system utilizes Digital Spread Spectrum Modulation technology to provide an almost impenetrable digital RF link between the racer and their car.
The DSM System operates in the 2.4GHz band (that's 2400MHz). This high frequency is well out of the range of virtually all model-generated (motor and ESC noise) and conventional radio interference. All the usual glitches that plague 27 and 75mhz radios are simply eliminated with the DSM System. In addition, each DSM module is factory programmed with it's own unique GUID (Global Unique Identifier). Once a DSM transceiver is “bound” to a specific DSM module it will only recognize signals from that module. With over 4 billion possible GUID codes, it's virtually impossible for a DSM transceiver to mistake another signal source for its DSM module.
DSM uses Direct Sequencing Spread Spectrum modulation to generate a wide signal on a single frequency. The FCC requires that these systems incorporate “collision avoidance” technology. When the DSM System is switched on, it will scan the 79 channels available to it for a free one. When it finds one, the DSM transceiver, which “listens” for the modules distinct GUID, will lock on to it. In the unlikely event that the DSM channel spectrum is full, the 80th system will not connect or cause any interference, going into “hold scan” until a channel is free.
Summary of Benefits
• The Spektrum DSM System provides an impenetrable digital RF link between a racer and their car that is impervious to all types of interference including other radio systems, model generated interference or environmental interference from pagers, cell phones, etc.
• Collision Avoidance- The DSM system scans the 2.4Ghz band looking for an open channel. When an unused channel is found the system locks on that channel and transmits providing the following benefits:
No more waiting for an open frequency
No need to impound the radio
Eliminates the need for a frequency board and frequency clips
Interference for other radios is a thing of the past
No crystals are needed
• 2.4ghz worldwide band is approved for international use. No need to change frequencies when traveling abroad
• Built-in failsafe drives the servos to a preset position (usually full brakes) in the unlikely event of radio interference
• The DSM system literally plugs into popular module based 3-channel transmitters allowing most racers to convert to DSM technology right away.
• Short 8" receiver antenna is easy to mount
• The soon-to-be-released DSM telemetry module will allow real time monitoring of head temperature, rpm, speed, battery voltage, lap time, etc.
• No maintenance or tuning required (always stays in tune)
• Up to 79 users can simultaneously operate DSM systems
DSM System Specifications
• Frequency Band 2.400-2.4835 GHz
• Channels 79
• Channel Spacing 1 MHz
• DSSS Coding Gain 18 dB
• Bitrate 15.626 kbps
• Range 3000 ft
• Latency 7.4 Ms
• Resolution/Channel 4096 steps
DSM Transceiver Specifications
• Weight .40 oz/11.3g
• Dimensions (LxWxH) 1.62x1.06x.57in (41.2x27.0x15.3mm)
• Input Voltage 3.2 – 9.6V
• Sensitivity -98 dBm BER 1E-3
• RC Channels 3
• Current 40 mA @ 4.8V
• Antenna length 8.5 in
Complete set € 209.90
Transceiver only € 119.00
deutsche index-Seite english index page
currency converter
Graupner/Spektrum DSM System for Robbe/Futaba Megatech 3PK and 3PK-B, 3PJ, T3VC/T3VCS
Introduction
Spektrum's DSM system offers the ultimate in radio link security. No longer do you have to worry about transmitters being turned-on on your frequency, waiting for the frequency clip to practice or interference caused from noisy motors, speed controllers or other interfering sources. The DSM system utilizes Digital Spread Spectrum Modulation technology to provide an almost impenetrable digital RF link between the racer and their car.
The DSM System operates in the 2.4GHz band (that's 2400MHz). This high frequency is well out of the range of virtually all model-generated (motor and ESC noise) and conventional radio interference. All the usual glitches that plague 27 and 75mhz radios are simply eliminated with the DSM System. In addition, each DSM module is factory programmed with it's own unique GUID (Global Unique Identifier). Once a DSM transceiver is “bound” to a specific DSM module it will only recognize signals from that module. With over 4 billion possible GUID codes, it's virtually impossible for a DSM transceiver to mistake another signal source for its DSM module.
DSM uses Direct Sequencing Spread Spectrum modulation to generate a wide signal on a single frequency. The FCC requires that these systems incorporate “collision avoidance” technology. When the DSM System is switched on, it will scan the 79 channels available to it for a free one. When it finds one, the DSM transceiver, which “listens” for the modules distinct GUID, will lock on to it. In the unlikely event that the DSM channel spectrum is full, the 80th system will not connect or cause any interference, going into “hold scan” until a channel is free.
Summary of Benefits
• The Spektrum DSM System provides an impenetrable digital RF link between a racer and their car that is impervious to all types of interference including other radio systems, model generated interference or environmental interference from pagers, cell phones, etc.
• Collision Avoidance- The DSM system scans the 2.4Ghz band looking for an open channel. When an unused channel is found the system locks on that channel and transmits providing the following benefits:
No more waiting for an open frequency
No need to impound the radio
Eliminates the need for a frequency board and frequency clips
Interference for other radios is a thing of the past
No crystals are needed
• 2.4ghz worldwide band is approved for international use. No need to change frequencies when traveling abroad
• Built-in failsafe drives the servos to a preset position (usually full brakes) in the unlikely event of radio interference
• The DSM system literally plugs into popular module based 3-channel transmitters allowing most racers to convert to DSM technology right away.
• Short 8" receiver antenna is easy to mount
• The soon-to-be-released DSM telemetry module will allow real time monitoring of head temperature, rpm, speed, battery voltage, lap time, etc.
• No maintenance or tuning required (always stays in tune)
• Up to 79 users can simultaneously operate DSM systems
DSM System Specifications
• Frequency Band 2.400-2.4835 GHz
• Channels 79
• Channel Spacing 1 MHz
• DSSS Coding Gain 18 dB
• Bitrate 15.626 kbps
• Range 3000 ft
• Latency 7.4 Ms
• Resolution/Channel 4096 steps
DSM Transceiver Specifications
• Weight .40 oz/11.3g
• Dimensions (LxWxH) 1.62x1.06x.57in (41.2x27.0x15.3mm)
• Input Voltage 3.2 – 9.6V
• Sensitivity -98 dBm BER 1E-3
• RC Channels 3
• Current 40 mA @ 4.8V
• Antenna length 8.5 in
Complete set € 209.90
Transceiver only € 119.00
deutsche index-Seite english index page
