ATX QFOT1310 User Manual download pdf (Page 15)

CHAPTER 5: SPECIFICATIONS

Q-Series

– QFOT1310 Series Broadcast Transmitter User Manual 6-1

CHAPTER 6: FUNCTION GUIDE

FUNCTION GUIDE

6. Function Guide

6.1. Front Panel Guide

1 ATX Trademark

2 LED Status Indicator: Green light: normal; Red light: warning. Check VFD message to troubleshoot problem.

3 VFD Monitor: Displays each status parameter, product model, serial number and other information about this

transmitter.

4 UP Button: Scroll the VFD display UP, or increase setting value.

5 Down Button: Scroll the VFD display DOWN, or decrease setting value.

6 Enter Button: MGC mode select and ENTER button.

NOTE: The default control mode of the FT13XX transmitter is AGC. IfthenumberofTVchannelsislessthan15,

press the UP or DOWN button until the VFD displays “MOD LEVEL=XX dBmV”, then press the ENTER button to select

MGC mode. After selecting MGC mode, the VFD will display “MOD LEVEL=XXdBmV” and “Please install…”. At this

point the user can change the modulation level in 1 dB increments by pressing the UP or DOWN buttons. Once you

have selected the desired modulation level, press ENTER again to make it effective. At that time the VFD will display

“MOD LEVEL=XX dBmV” and transmitter will shift back to AGC mode. For instance, if user’s ideal Modulating level is 42

dBmV, VFD would display “MOD LEVEL= 42 dBmV” after operations shown above. Please consult an ATX engineer

for help with this feature.

7 RF Input Test Port: Standard 75Ω style F-style test port for RF signal on-line test. Level tested from this port is 20 dB

lower than the actual RF drive level to the laser.

6.2. Rear Panel Guide

8 RF Input Port: Standard 75Ω American style F port, used for connecting RF signal and the equipment. Level in this input

port must be at the range of 15~25 dBmV. Too high level may damage laser. Optimum input level is 17 dBmV.

 *Theinputlevelabove17dBmVmaydamageLaser.Pleaseconsultfactory!

9 Optical Signal Output: Optical signal output port, SC/APC, or optional FC/APC connector. There are invisible laser

emissions from Fiber output when laser is active!

*It would be dangerous to point this port toward the human body especially eyes when equipment is

energized!

10 RS-232 Standard Network Management Port (optional): Use for connecting equipment with RS-232 port in network

management server.

11 Network Management Indicator

Front View

8 9 10

11 12 13 14 15 16 17

Rear View

2 3 4 5 6 71

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 25 26

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ATX QFOT1310 User Manual Page 15