Ecreso Helios FM 20/100 W User Manual - page 79
Manual is about: 87.5 – 108 MHz 20 OR 100 W Stereo And Multiplex Compact Fm Digital Transmitter With Tcp/Ip Monitoring
of
80
Helios FM 20/100 W, user manual– 12/2011
APPENDIX A: ADJUSTING THE IMPEDANCE OF ANALOG INPUTS
Default impedance of analog inputs is 10 k
Ω
.
It can be set to 600
Ω
by jumpers.
Before setting the jumpers, make sure that all cables are disconnected. Remove all the screws securing the
cover.
Depending on the version of your transmitter, you may have either a type I or a type II audio board.
Page 79
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Tel +33 (0)5 57 928 928 – Fax +33 (0)5 57 928 929 –
www.ecreso.com – contact@ecreso.com
Jumper position on a type I carte board:
J2 J1
10 k
Ω
600
Ω
Jumper position on a type II carte board:
J2 J1
10 k
Ω
600
Ω
J2
J1
J1
J2