Harris Broadcast Flexiva FAX 20KW User Manual

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TECHNICAL MANUAL

FAX 5/10/20/30/40KW

Transmitter Series

Revision J

888-2720-001

Harris Broadcast is an independent company not affiliated with Harris Corporation.

Table of Contents

Questions and Answers:

F
Felicia ClementsAug 16, 2025
What to do if DS13: AC FLT on Harris Broadcast Flexiva FAX 20KW Transmitter?
- B
  Benjamin SimpsonAug 16, 2025
  If the AC Mains to the Harris Broadcast Transmitter is not within the range for the service being used, or if the cabinet or wall circuit breaker has tripped, or if the fuses for the low voltage detector on each phase on the Power Supply Interface board in the rear of the power blocks are damaged, the DS13: AC FLT may occur. Verify the AC Mains, check the fuses, and ensure the circuit breaker has not tripped.
J
Jennifer OrtegaAug 19, 2025
What to do if MUTE LED is Red on Harris Broadcast Transmitter?
- D
  David RivasAug 19, 2025
  If the MUTE LED is Red on the Harris Broadcast Transmitter, check the Equipment Interlock J1?9 of the USER REMOTE connector on the rear of power block 1. Also, check the MUTE line J1?7 of the USER REMOTE connector on the rear of power block 1.

Harris Broadcast Flexiva FAX 20KW Specifications

General

Power Output	20 kW
Modulation	FM
Efficiency	>70%
RF Output Impedance	50 Ohms
Audio Input Impedance	600 Ohms balanced
AC Input Voltage	380-480 VAC, 3-phase
Input Frequency	50/60 Hz
Frequency Range	87.5 - 108 MHz
Harmonic Suppression	80 dB below carrier

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Harris Broadcast Flexiva FAX 5KW