To connect an associated telephone set, you must
have a parallel connection on the telephone jack
socket.
The line can be connected directly to the public
telephone exchange or to a private exchange
(PBX). The private centrals sometimes deteriorate
somewhat the rejection of the hybrid, so it is advis-
able to connect the console directly to the public
central lines.
Telephone lines are internally protected against
high voltage discharges (flash or non-direct light-
ning) by metal oxide varistors. However, it is rec-
ommended to
install external protections
based on
gaseous arresters and fuses, especially if you are
in a storm zone.
Although the console has internal protection for distant
lightning strikes, it is recommended to install a protector
against voltage spikes on the telephone line, which can
be generated by accidents or lightning strikes or
flashes. Remember that lightning damage is NOT cov-
ered under warranty.
Rejection factor (Null)
This setting applies only to the land line. It is done
when the console is installed and does not need to
be readjusted later, except if a different phone line
is connected.
The rejection factor expresses the ability of the hy-
brid to prevent the transmitted signal from return-
ing with the signal from the caller. The higher the
rejection factor, the "cleaner" the voice quality of
the local speaker.
To adjust the rejection proceed (see the next chap-
ter for full details):
1. Send spoken content on the air from the com-
puter. If no spoken content is available, you can
speak live using the microphones. Music can be
used as a last resort, but it will make adjust-
ment more difficult.
2. Make a call using the POTS line (PHONE).
3. Who answer the call, will keep in silence.
4. Quit the PGM signal from headphones (the
PGM button on the zone CUE MOITOR).
5. Listen to the telephone line in CUE and carefully
turn the NULL control, back and forth, until you
find the point where the level in headphones of
the signal sent to the air is minimum.
6. End the calling.
Stereo line
7
Unbalanced stereo line in (Jack TRS ¼”).
Program INSERT
8
Stream-In is a stereo input that uses a ¼ ”TRS
Jack. When plugged in, it disconnects the PGM
send to USB and replaces it with the external
Stream-In signal. This allows using an external pro-
cessor, connected to the program output, and re-
entering the processed signal to the MiniMixer,
which sends it via USB to the computer for stream-
ing transmission.
Program output
9
Stereo PGM Out
is a stereo output over ¼” Jack
connector. Sends the mix of microphones; USB;
aux line and phone lines.
REC output
10
MIC REC OUT is a stereo output with a ⅛ ”mini
jack, which delivers the mix from the microphones.
It allows to record the microphone mix while the
console continues to stream content from the
computer. To record, you can use the line input of
the computer, or any portable recorder. A connec-
tion scheme is shown below, which takes advan-
tage of the line input on board the computer.
SmartCam (only models MiniMixer/AVcam)
11
Smartcam is an interface included only in Min-
iMixer AVcam models; which also include the Audi-
com Video (audiovisual management system) and
the Close RadioTV camera and streaming manage-
ment service. Smartcam transmits information on
the status of the microphones via USB, allowing the
system to automatically switch the studio cameras
according to the dynamics of the conversation.
Use a USB-miniUSB cable. Its connection and oper-
ation is explained in the Close RadioTV software
documentation. Check our website for more de-
tails.
Page 8
MiniMIxer
broadcasting mixing console
