Security Alarms AR6000 Instrukcja Użytkownika Pobierz pdf (Strona 2)

ModelMatch prevents you from flying a model while the transmitter has the wrong model

selected. When you bind your receiver to a Spektrum DX7 transmitter, the transmitter remembers

the specific memory location that you´ve selected for that aircraft´s profile. In the event that you

try to fly a specific model with the wrong model memory selected, the transmitter will not

broadcast your transmitter inputs until you change to the proper model memory. Since it is

transmitter based, ModelMatch works with all Spektrum air receivers when combined with a

DX7 Transmitter.

Finally, there´s ServoSync. With ServoSync, the DX7 transmitter´s signal is re-sequenced to

best suit the type of mixing you select. This comes in handy in a number of applications, such as

if you have a dual elevator on your big Extra or a 3-servo CCPM setup on your heli, ServoSync

will see to it that those servos working together receive their impulses together. The result is more

synchronized servo movement that translates into an undeniable, locked-in feel when you fly.

Why use Direct Sequencing Spread Spektrum

There are two main broadcast methods that spread spectrum manufacturers can utilize. One

format is called Frequency Hopping Spread Spectrum (FHSS). With an FHSS system, the

transmitter transmits a narrow band signal and rapidly jumps from one frequency to the next,

spending a few milliseconds on each frequency. Originally, Spektrum engineers started their

development with FHSS-based systems because they were relatively easy and inexpensive to

develop. However, they soon discovered that FHSS had several limitations that would prevent it

from being the optimal solution for RC. While more difficult and costly to develop, our engineers

began experimenting with Direct Sequence Spread Spectrum (DSSS) and optimized the

modulation scheme to overcome critical response and re-link issues. DSSS systems transmit on a

single selected frequency but on a very wide band. Only a small portion of that band is used for

specially encoded information. In addition, DSSS offers an increase of processing gain for

significant improvements in range. With years of development and testing, the DSSS modulation

scheme was optimized for RC car and airplane use, and Spektrum´s DSM 2.4GHz Spread

Spectrum Technology was born. DSSS provided engineers and hobbyists with the safety,

security, and locked-in feeling that is necessary to maintain total and complete control in any

vehicle or aircraft

What is DMS2 technology

Above and beyond the basic features of DSM, there has been a technological breakthrough for

both air and surface applications thanks to Spektrum. An updated version of DSM technology

referred to as DSM2 (second generation protocol) makes it possible to fly any size model with the

convenience, safety, and peace of mind of Spektrum. With DSM2, the total latency of your radio

system has been greatly reduced, while the bit-rate has been increased. When combined, these

improvements provide hobbyists with a faster and more locked-in feeling when compared to

traditional 27MHz, 72MHz, or 75MHz radio systems. DSM2 also provided a new opportunity

when separating the two receivers. By providing superior path diversity, the DSM2 receiver can

now see a broader RF environment

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Security Alarms AR6000 Instrukcja Użytkownika Strona 2