JK Audio RemoteMix 3 User Manual
RemoteMix 3 / 3.m
Phone Line Hybrid and
Telephone Handset Interface
for Remote Broadcasts
User Guide
JK Audio
Connections
RemoteMix 3 / 3.m is a professional audio mixer designed to work on
any standard analog telephone line or PBX / digital telephone system
via the handset interface. It can also connect to many cellular
telephones using a fax/modem adapter available from your cellular
telephone manufacturer. Simply plug your audio equipment into
RemoteMix 3 / 3.M and connect to a phone line. You can now put on
headphones, plug in a microphone, and you are ready to broadcast
the game or talk up a taped interview.
The RCA type jacks on RemoteMix 3 / 3.m are equivalent to the
jacks found on most home tape recorders, CD players, and receiver/
amplifiers. The balanced XLR output jack provides a high quality
connection to mixers and professional tape gear. This XLR output is
equipped with a switch to select between a telephone line / mic mix
at telephone bandwidth (200 Hz - 3400 - Hz) or a clean mic mix at full
bandwidth (80 Hz - 16 kHz). The clean mic mix contains mic 1, mic 2
and line 3 inputs. The adjustable hybrid circuit provides control over
the mix of transmit and receive audio at the output jacks.
to RJ-11
wall jack
Tape recorder or
audio equipment
input or output,
RCA or XLR
Microphones,
2 XLR jacks
(mic 1 is mic/line
switchable)
Headphones or small
speaker, 2 jacks 1/4”
stereo or mono
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Operation
1. Connect your audio equipment, microphone(s), and headphones
to the input and output jacks on RemoteMix 3.
2. Connect the jack marked "Phone Line" to any standard analog
telephone line,
or connect to the Fax/Modem adapter on a cellular telephone,
or disconnect the handset on the existing telephone and plug
the coily cord into the PBX handset interface jack on RemoteMix
3. Turn on the power switch, flip the "Phone Line" switch to "Dial/
Talk" and dial your call. You are now ready to broadcast or
record a telephone interview.
Cellular Telephones
RemoteMix 3 / 3.m was designed to work well with the data interface
(fax / modem adapter) for your cellular telephone, available through
your cellular dealer. These adapters turn your cellular telephone into
an RJ11 equivalent jack which replaces the wall jack in the picture on
the previous page.
Handset Interface
If you cannot get to an analog phone line or if the phone system is a
digital or analog PBX, ISDN, or a key telephone system, you can use
the built-in handset interface. Simply disconnect the handset from the
coily cord and plug the cord into the RemoteMix 3 / 3.m PBX
Handset Interface Jack. Now select the handset type on the 3
position switch. Trial and error works faster than a chart of handset
types, but this basic description may help.
Switch Position Handset Microphone Type
A Electret
B Dynamic
C Carbon
Note: The handset type switch only affects audio you are attempting
to send down the telephone line. The receive side of the RemoteMix
3 will work no matter what position the handset type switch is in.
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Operation (continued)
VU Meter
The VU meter shows the mix of both microphones and the tape
signal going out over the phone line or handset interface.
Send Side (To Phone Line)
There are separate volume controls for the two microphone inputs
and the line 3 input RCA jack. You can use all three inputs at the
same time. Mic 1 also has a Mic/Line selector switch which lowers
the gain on the Mic 1 XLR jack by 30 dB to allow a balanced line
level input.
Receive Side (From Phone Line)
The receive side has separate controls for headphone output level
and mix audio output level. The Line Out control adjusts the signal
going out of the balanced XLR jack marked Balanced Line Out. This
is either a mix of both sides of the telephone call at telephone bandwidth (200 Hz - 3400 Hz) or a clean mic / line input mix at full bandwidth (80 Hz - 16 KHz).
Headphones
The built-in headphone amplifier is strong enough to power two pair
of headphones or a small desktop speaker. The left and right
channels contain the same mono signal, but are powered by
separate amplifier channels. These jacks will drive either two 1/4"
stereo plugs or two 1/4" mono plugs.
Talkback Feature
A built in speaker lets you monitor the phone line during call setup
and station breaks. The monitor speaker volume is controlled by the
headphone volume control and has an additional on / off switch. An
internal push-to-talk microphone also helps when setting up your call.
The speaker switches off when the microphone button is pushed on
to prevent feedback.
Ringer
RemoteMix 3 / 3.m has an internal ringer for incoming calls.This can
be turned off using the switch on the side of the unit.
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