WIRELESS SYSTEMS / APPLICATION 3
APPLICATION 3 / WIRELESS SYSTEMS
Multiple zones wireless system
If you need to cover more than two areas which are in proximity of one another, or you simply need to cover one very large area, then this solution may suit your requirements. Consider the need for a wireless microphone which needs to operate throughout the areas of a shopping mall, or over the very wide area of a sports venue – such as a golf course.
Zone 1
Zone 2
Initially, you may consider using multiple pairs of antennas, combining them with multiple ATW-SC410. However, this is not usually the best approach, as you will either run into power issues or the total cable runs will become too long to compensate for incurred RF loss with signal boosters. This application offers a more elegant solution. The concept begins with placing a wireless receiver of the same type, tuned to the same frequency, in each area with a local pair of antennas. If you were to use these receivers alone, you could operate the transmitter in each room, provided you activate only one receiver at a time. Then, the audio signal can be sent from the active receiver to the local speaker system as needed. In this scenario, you must manually switch off or mute the unused receivers in order to avoid erratic audio signals being output whilst the wireless transmitter is out of range. In most cases, this option is not practical. It may not be possible to continually ensure unused receivers are switched off between uses, or a project may demand that the wireless transmitter must work across all areas freely – without continual adjustment by a technician. The solution is to add the ATDM-0604a Digital SmartMixer. Simply connect the audio signals from each receiver to the ATDM-0604a and set the unit to Smart Mix mode, making sure to allow only one open microphone at a time. This way, a receiver remains active in the mixer until an audio drop out occurs, which will trigger the mixer to automatically switch to the receiver featuring the most reliable signal. With this solution, you can combine up to six areas, whilst creating one reliable output signal. Check Application 1 for important information on total cable length, active antennas or using boosters in your antenna cable run. It is possible to combine Application 3 with Application 2 in some or all zones to increase the area of coverage even further. Also, it is possible to combine Application 3 with Application 4. In this case, you will require one ATDM mixer for each wireless microphone you want to use. Compatible Audio-Technica wireless systems for this solution include the AT-One, 2000 Series and 3000 Series.
Zone 4
Zone 3
Zone 5
Zone 6
To Speakers
LAN Connection for Web Remote Manager Computer Audio I/O
Equipment used
ATW-T210a ATW-T210c
ATW-T220a ATW-T220c
ATDM-0604 ATDM-0604a
6 x ATW-R2100b 6 x ATW-R2100c
1 x
or
Product table Quantity Code
Description
Alternative
ATW-R2100c
6
Frequency-Agile True Diversity UHF Wireless Receiver
ATW-T210c
1
2000 Series Beltpack Transmitter
ATW-T220c Handheld Transmitter
ATDM-0604a
1
Digital SmartMixer
audio-technica wireless systems guide - 41
40 - audio-technica wireless systems guide
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