background image

 
 
 
 
 

ATR 720 C 

 

VHF TRANSCEIVER 

 
 

 
 

 

 

 

 

 
 
 
 
 

INSTALLATION 

MANUAL 

 

Handbook No.:003.8000

 

 
 
 
 
 
 

 
 

 
Issue: 01/04/1998 720C installation Man.DOC

 

Summary of Contents for ATR 720 C

Page 1: ...ATR 720 C VHF TRANSCEIVER INSTALLATION MANUAL Handbook No 003 8000 Issue 01 04 1998 720C installation Man DOC...

Page 2: ...RPOSE OF EQUIPMENT 3 1 3 DESIGN FEATURES 3 1 4 POWER REQUIREMENTS 4 1 5 Technical Characteristics 4 1 6 Units and Accessories Supplied 6 1 7 Accessories Required but not Supplied 6 2 SECTION II Instal...

Page 3: ...quelch adjustment Squelch threshold automatically adjusts to open on readable signals SQ switch in pulled opens squelch to test COMM receiver sensitivity and to listen ex tremely weak signals Liquid C...

Page 4: ...Specification Characteristic RTCA COMPLIANCE Comm Transmitter RTCA Do 157 Class 4 EUROCAE ED 24 Comm Receive RTCA Do 156 Class C EUROCAE ED 23 Environmental Temperature Range Altitude RTCA Do 160A C4A...

Page 5: ...ratio Selectivity Typical 6 dB at 8 kHz 70 dB at 25 kHz Spurious Responses Down al least 60 dB Squelch Automatic squelch carrier to noise with manual disable and carrier squelch override AGC From 5 V...

Page 6: ...ting hardware etc 1 7 Accessories Required but not Supplied Communication antenna and cables Headphones and speaker Headphones Low impedance types 200 to 1000 ohms Speaker Voices coil impedance 4 to 8...

Page 7: ...ory performance from the equipment 2 2 Unpacking and Inspecting Exercise extreme care when unpacking each unit Make a visual inspection of each unit for evi dence of damage incurred during shipment If...

Page 8: ...Filser Electronic GmbH Gewerbestra e 2 ATR 720 C Communications Transceiver 86875 Waal page 8 Figure 2 1 Figure 2 1 BENCH TEST SET UP...

Page 9: ...unter as dia gramed in Figure 2 1 6 Connect the wattmeter to J 5001 Key the transmitter and talk into the microphone The watt meter indicator should react with a wiggle 7 With the transmitter keyed us...

Page 10: ...talk into the microphone 4 Adjust SIDETONE control 5201 for a comfortable listening level from the headphones 5 Disconnect the Unit from the test set up 200 Sidetone Control 255 Mike Gain Control Fig...

Page 11: ...Figure 2 3 The rearward mounting holes must be attached to a structural member of the panel by means of support brackets in or der to avoid vibration 5 Slide the ATR 720 C into the rack and secure by...

Page 12: ...the external cables in accordance with the installation drawing that fulfills the system requirement N O T E Use good quality stranded wire that will not support a flame and with al least 600 volt ins...

Page 13: ...Filser Electronic GmbH Gewerbestra e 2 ATR 720 C Communications Transceiver 86875 Waal page 13 FIGURE 2 6 1 INTERCONNECTION DIAGRAM...

Page 14: ...trol VOL The Volume control VOL is activated at the multifunctio control by turning it clockwise for the desired volume 2 7 2 4 COMM Keyboard The COMM Keyboard consists of five function keys and 10 nu...

Page 15: ...LATION CHECKOUT An operational performance flight test is recommended after the installation is completed to in sure satisfactory performance of the equipment in its normal environment To check the co...

Reviews: