Anywave ATSC 60W Краткое руководство по эксплуатации - Страница 13

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10. (Optional Step) Navigate to the Exciter "DPD" submenu in the Advanced User

menu (simultaneously press Left and Right buttons, then simultaneously press

UP and Down buttons). Be sure the value of Feedback Sample Signal Input

(FSSI) for both A (after) and B (before) reads somewhere between 45% and 75%

- which roughly corresponds to a value of -15 to -5 dBm as measured on a power

meter (note: the FSSI indicator toggles between A and B and will "flash" when

the signal level is out of range, too high or too low). Add or remove the

appropriate attenuator padding to achieve feedback signal levels in the desired

range. Note the AFTER filter feedback sample is used to compute the SNR and

Shoulder Metrics displayed.

11. (Optional Step) Navigate to the Exciter "SYSTEM" submenu and select

UPDATE under ADPC to run corrections. The exciter will then proceed through

4 stages of correction, computing Linear and Non-Linear corrections, and

automatically saving the coefficients into non-volatile memory upon

completion. The correction process typically takes from 8-10 minutes to

complete while real-time performance metrics of SNR and Shoulder

performance are displayed on the LCD.

12. Check RF Performance metrics (SNR, LIMD, UIMD) on the front panel screen

of the exciter, as well as on the PA's touchscreen.

Your TX should now be up and running properly into your load or on-air

antenna. Continue to monitor system parameters as you allow the transmitter to

operate and stabilize at full output power for another 30 minutes.

ACT-PAU01-QSG-DOC-V1.1, 06/26/2018

ATSC 60W Quick Start Guide

Page 13 of 17