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User’s Guide – 900MHz Stereo Audio Transmitter & Receiver 

11 

 

Technical Specifications 

 
 

PAT900 Transmitter 

Operating Frequency (24 Channels) 

902 – 928 MHz 

Operating Voltage Range 

7.5 to 18VDC 

Operating Current 

120 mA 

Audio Signal-to-Noise Ratio* 

78 dB 

Audio Frequency Response (+/-2dB)* 

30 - 20,000 Hz 

Audio Distortion (@ 1kHzm +/-25KHz deviation)* 

0.3% 

RF Output Power 

1 mW (0 dBm) 

Frequency Stability (over operating temp.range) 

+/-30 ppm 

FM Deviation 

+/-40 KHz 

Harmonic Suppression 

-45 dBc 

Operating Temperature Range 

-20

°

C to +70

°

Storage Temperature Range 

-50

°

C to +150

°

*Audio performance specifications are “end-to-end” characteristics, 
  when used with Model AR900-32 receiver. 

 
 

PAR900M Receiver 

Operating Frequency (24 Channels) 

902 – 928 MHz 

Operating Voltage Range 

7.5 to 18VDC 

Operating Current 

180 mA 

Audio Frequency Response (+/-2dB,)* 

30 - 20,000 Hz 

Audio Channel (L/R) Separation (@ 1KHz)* 

30 dB 

Audio Signal-to-Noise Ratio* 

50 dB 

Audio Distortion (@ 1kHzm +/-25KHz deviation)* 

0.3% 

RF Input Sensitivity (30 dB SNR) 

-106 dBm 

IF Bandwidth 

180 KHz 

Antenna Input Impedance 

50 Ohms 

Frequency Stability (over operating temp. range) 

+/-30 ppm 

Operating Temperature Range 

-20

°

C to +70

°

Storage Temperature Range 

-50

°

C to +150

°

*Audio performance specifications are “end-to-end” characteristics, 
  when used with Model AT900-32 transmitter. 

 

 

12 

Applied Wireless, Inc. 

The following sections pertain exclusively to the Audio 
Transmitter, Model AT900-32: 

This product incorporates transmitter module FCC ID: QY4265 
This device complies with Part 15 of the FCC Rules. Operation is 
subject to the following two conditions: 

(1)

 

This device may not cause harmful interference and 

(2)

 

This device must accept any interference received, including 
interference that may cause undesired operation. 

 

INSTRUCTION TO THE USER (required by the FCC) 

This equipment has been tested and found to comply with the 
limits for a class B digital device, pursuant to part 15 of the FCC 
Rules. These limits are designed to provide reasonable protection 
against harmful interference in a residential installation. This 
equipment generates, uses and can radiate radio frequency energy 
and if not installed and used in accordance with the instructions, 
may cause harmful interference to radio communications. 
However, there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful 
interference to radio or television reception, which can be 
determined by turning the equipment off and on, the user is 
encouraged to try to correct the interference by one or more of the 
following measures: 

 

Reorient or relocate the receiving antenna. 

 

Increase the separation between the equipment and 
receiver. 

 

Connect the equipment into an outlet on a circuit different 
from that to which the receiver is connected. 

 

Consult the dealer or an experienced radio/TV technician 
for help. 

This equipment has been certified to comply with the limits for a 
class B computing device, pursuant to FCC Rules. In order to 
maintain compliance with FCC regulations, shielded cables must 
be used with this equipment. Operation with non-approved 
equipment or unshielded cables is likely to result in interference to 
radio and TV reception. The user is cautioned that changes and 
modifications made to the equipment without the approval of 
manufacturer could void the user’s authority to operate this 
equipment.

Summary of Contents for PAR900M

Page 1: ...allation and Operation 900 MHz Monaural Audio Receiver Model PAR900M 900 MHz Monaural Audio Transmitter Model PAT900 Long Range Wireless Applications User s Guide 2 Applied Wireless Inc This page inte...

Page 2: ...ently attached substituting a different antenna or mounting the antenna remotely are not permitted The antennas supplied with the receiver are a removable quarter wave ground plane sometimes referred...

Page 3: ...Connect the receivers appropriate balanced or unbalanced outputs to the appropriate inputs on the device that is to amplify the received audio signals refer to Figure 2 Figure 2 Receiver Back Panel C...

Page 4: ...aby monitor operating nearby To alleviate the problem try selecting a different channel for the transmitter and receiver ideally one that is at least 9MHz above or below the originally selected channe...

Page 5: ...ion the source device s volume level is probably set too high Reduce the source device s volume control a bit and readjust the transmitter s AUDIO LEVEL control accordingly 10 Applied Wireless Inc Mic...

Page 6: ...ot cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation INSTRUCTION TO THE USER required by the FCC This equipme...

Page 7: ...ain service 2 Loss of use of the product 3 Loss of the original purchaser s time LIMITATION OF IMPLIED WARRANTIES This warranty limits AW s liability to the repair or replacement of the product AW mak...

Page 8: ...805 383 Email info www ap 900 s products are de in the Unit plied Wireless bject to chang ED WIRELESS Acaso Camar 3 9600 Fax appliedwire ppliedwireles e designed an ted States of A Inc All right ge w...

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