User Manual

SPECIFICATIONS
OVERALL SYSTEM PERFORMANCE
Frequency Response..........100 Hz-8kHz ±3 dB
Signal to Noise Ratio..........41 dB
Total Harmonic Distortion..< 0.5%
RF Carrier Frequencies......Eight channels between
72-76 MHz. Channel AA: 72.1, BB:
72.3, CC: 72.5, DD: 72.7, EE:
72.9, FF:75.5, GG: 75.7, HH: 75.9
Frequency Stability.............Better than .005%
Modulation.........................FM ±75 kHz max
Operating Range................Up to 300 feet line-of-sight
ALS-600 TRANSMITTER
Mic Input...........................Connector: 1/4" phone jack.
Impedance: unbalanced,
with 12V DC at 1 mA for
electret mic.
Line Input..........................Connector: 1/4" phone jack
Impedance: 100 K,
unbalanced
Power Output....................15dBm
Controls............................ Power on/off, volume adjust
Indicators..........................Power On LED,
signal LED
Antenna............................Permanently mounted
telescoping
Power Requirement. .........12V DC, regulated @ 300
mA, adapter provided
Dimensions:. .....................1.81" H x 8.27" W x 5.51" D
Weight:. .............................0.75 lb.
ALS-600BP Receiver
Controls.......................Separate volume &
on-off controls
Audio Output................ 109 mW max into 16 ohms
Connectors...................3.5mm mini jack for
earphone output
Earphones....................Mini binaural earbuds
Antenna.........................Integral with earphone cord
Indicators..................... LED power on indicator
Sensitivity.....................3
(included)
3.66 x 44 0.87
89
μV for 12 dB
with squelch defeated.
Squelches at 10 μV for
min. 50 dB S-N ratio
Mute Threshold........... 5-8 μV
Power Requirement.....9V alkaline
Battery Life..................17-20 hours w/alkaline
battery
Dimensions.................. " H 2. " W x " D
Weight .........................2. oz. w/out battery
5
Confirming Correct Installation
You may operate up to three ALS-600 systems in the same location. For multiple
system operation, please observe:
If operating two ALS-600 transmitters in the same location,
use Ch.AA and HH(or GG).
If three
,EE .
Locate the transmitters ten feet or more away wearing ALS- BP
receivers.
* For the best performance, (and to minimize the possibility of interference from
another source), we suggest you experiment to find the minimal height the
antenna must be extended in order to perform well in your particular environment.
Using More Than One ALS-600 System
•
• operating ALS-600 transmitters in the same location,
use Ch.AA and HH(or GG)
• those 600