JK Audio RemoteMix 3.m User manual
RemoteMix 3.m
Phone LIne Hybrid and Telephone Handset
Interface for Remote Broadcasts
Users Guide
JK Audio, Inc.
2 3
Operating
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
RemoteMix3.m.
3. Turn on the power switch, flip the "Phone Line" switch to
"Dial/Talk" and dial your call. You are now ready to
broadcastorrecordatelephoneinterview.
CellularTelephones
RemoteMix 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
telephoneintoanRJ11equivalentjackwhichreplacesthewalljack
inthispicture.
HandsetInterface
Ifyoucannotgettoananalogphonelineorifthephonesystemisa
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.m PBX
Handset Interface Jack. Now select the handset type on the 3.m
positionswitch. Trialanderrorworksfasterthanachartofhandset
types,butthisbasicdescriptionmayhelp.
SwitchPosition HandsetMicrophoneType
A Electret
B Dynamic
C Carbon
VUMeter
The VU meter shows the mix of both microphones and the tape
signal going out over the phone line or handset interface.
Tape recorder or
audio equipment
input or output,
RCA or XLR
Microphones, 2
XLR jacks
Headphones or small
speaker, 2 jacks 1/4”
stereo or mono
to RJ-11
wall jack
Connections
RemoteMix 3.m is a professional audio mixer designed to work on
any standard analog telephone line or simply unplug the handset on
most PBX or digital telephones and connect to the built-in universal
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.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.m are
equivalent to the jacks found on most home tape recorders, CD
players, and receiver/amplifiers. The balanced line XLR output jack
provides a high quality connection to mixers and professional tape
gear. The adjustable hybrid circuit provides control over the mix of
transmit and receive audio at the output jacks.
1. Connect your audio equipment, microphone, and
headphonestotheinputandoutputjackson
RemoteMix3.m.
2. Connect the jack marked "Phone Line" to any standard
analog telephone line,
2 3
Operating
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
RemoteMix3.m.
3. Turn on the power switch, flip the "Phone Line" switch to
"Dial/Talk" and dial your call. You are now ready to
broadcastorrecordatelephoneinterview.
CellularTelephones
RemoteMix 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
telephoneintoanRJ11equivalentjackwhichreplacesthewalljack
inthispicture.
HandsetInterface
Ifyoucannotgettoananalogphonelineorifthephonesystemisa
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.m PBX
Handset Interface Jack. Now select the handset type on the 3.m
positionswitch. Trialanderrorworksfasterthanachartofhandset
types,butthisbasicdescriptionmayhelp.
SwitchPosition HandsetMicrophoneType
A Electret
B Dynamic
C Carbon
VUMeter
The VU meter shows the mix of both microphones and the tape
signal going out over the phone line or handset interface.
Tape recorder or
audio equipment
input or output,
RCA or XLR
Microphones, 2
XLR jacks
Headphones or small
speaker, 2 jacks 1/4”
stereo or mono
to RJ-11
wall jack
Connections
RemoteMix 3.m is a professional audio mixer designed to work on
any standard analog telephone line or simply unplug the handset on
most PBX or digital telephones and connect to the built-in universal
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.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.m are
equivalent to the jacks found on most home tape recorders, CD
players, and receiver/amplifiers. The balanced line XLR output jack
provides a high quality connection to mixers and professional tape
gear. The adjustable hybrid circuit provides control over the mix of
transmit and receive audio at the output jacks.
1. Connect your audio equipment, microphone, and
headphonestotheinputandoutputjackson
RemoteMix3.m.
2. Connect the jack marked "Phone Line" to any standard
analog telephone line,
4 5
Operating (Continued)
SendSide(ToPhoneLine)
There are separate volume controls for the two microphone inputs
andthelineinput(ToPhoneLine)jack. Youcanuseallthreeinputs
at the same time. Mic 1 also has a Mic/Line selector switch which
lowersthegain on the Mic1XLR jack by 30dBto allow a balanced
linelevelinput.
ReceiveSide(FromPhoneLine)
Thereceive side has separate controls for headphone output level
andmixaudiooutputlevel. TheLineOut controladjuststhesignal
going out of the RCA and XLR jacks. The RCA jack contains a mix
ofbothsidesofthetelephonecall,whiletheXLRisacleanmicmix.
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"
stereoplugsortwo1/4"monoplugs.
TalkbackFeature
A built in speaker lets you monitor the phone line during call setup
and station breaks. The monitor speaker volume is controlled by
theheadphonevolumecontrolandhasanadditionalon/offswitch.
An internal push-to-talk microphone also helps when setting up
yourcall. The speakerswitchesoffwhen themicrophonebuttonis
pushedontopreventfeedback.
Ringer
RemoteMix 3.m has an internal ringer for incoming calls. This can be
turned off using the switch on the side of the unit.
Operating (Continued)
HandsetJack
The handset jack on the right side of RemoteMix 3.m allows you to
pluginatelephonehandsetandquicklysetupacallbeforeyouset
up your microphones and headphones. The handset microphone
volumeisadjustedusingtheLineInknob. Theearpiecevolumeis
adjusted using the Headphone level knob. All telephone handsets
are different, so if yours is not compatible, try an AT&T, Sony, or
RadioShack residentialphonehandset.
Keypad
Thetelephonekeypadisfortoneorpulsedialing. Youmayusethe
keypad at anytime during a call but keep in mind that both transmit
andreceiveaudioaremutedduringakeypress.
Tone/PulseDialing
RemoteMix 3.m is equipped with a switch to select tone (DTMF)
dialing or pulse dialing. The switch is located underneath the
battery door. With the switch towards the volume control knobs,
theunitisinthe“pulse”mode. Whenin“pulse”modethe“*”keywill
set the unit to transmit digits as tones regardless of the switch
position. Toreturntopulsedialingturnthekeypadoffandbackon.
KeypadON/OFF
ThisswitchdisablestheDTMFkeypadtopreventtonesfrombeing
blasteddownthephonelineduringabroadcast.
PhoneLineSwitch
This switch acts as the switch-hook for the telephone line. The Hang
Up position is the normal on-hook position when you are not using
the line or you are waiting for a call. When you want to place a call,
or when a call comes in, switch to the Dial/Talk position. Keep this
switch in the Hang Up position if you are using the PBX Handset
Interface.
4 5
Operating (Continued)
SendSide(ToPhoneLine)
There are separate volume controls for the two microphone inputs
andthelineinput(ToPhoneLine)jack. Youcanuseallthreeinputs
at the same time. Mic 1 also has a Mic/Line selector switch which
lowersthegain on the Mic1XLR jack by 30dBto allow a balanced
linelevelinput.
ReceiveSide(FromPhoneLine)
Thereceive side has separate controls for headphone output level
andmixaudiooutputlevel. TheLineOut controladjuststhesignal
going out of the RCA and XLR jacks. The RCA jack contains a mix
ofbothsidesofthetelephonecall,whiletheXLRisacleanmicmix.
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"
stereoplugsortwo1/4"monoplugs.
TalkbackFeature
A built in speaker lets you monitor the phone line during call setup
and station breaks. The monitor speaker volume is controlled by
theheadphonevolumecontrolandhasanadditionalon/offswitch.
An internal push-to-talk microphone also helps when setting up
yourcall. The speakerswitchesoffwhen themicrophonebuttonis
pushedontopreventfeedback.
Ringer
RemoteMix 3.m has an internal ringer for incoming calls. This can be
turned off using the switch on the side of the unit.
Operating (Continued)
HandsetJack
The handset jack on the right side of RemoteMix 3.m allows you to
pluginatelephonehandsetandquicklysetupacallbeforeyouset
up your microphones and headphones. The handset microphone
volumeisadjustedusingtheLineInknob. Theearpiecevolumeis
adjusted using the Headphone level knob. All telephone handsets
are different, so if yours is not compatible, try an AT&T, Sony, or
RadioShack residentialphonehandset.
Keypad
Thetelephonekeypadisfortoneorpulsedialing. Youmayusethe
keypad at anytime during a call but keep in mind that both transmit
andreceiveaudioaremutedduringakeypress.
Tone/PulseDialing
RemoteMix 3.m is equipped with a switch to select tone (DTMF)
dialing or pulse dialing. The switch is located underneath the
battery door. With the switch towards the volume control knobs,
theunitisinthe“pulse”mode. Whenin“pulse”modethe“*”keywill
set the unit to transmit digits as tones regardless of the switch
position. Toreturntopulsedialingturnthekeypadoffandbackon.
KeypadON/OFF
ThisswitchdisablestheDTMFkeypadtopreventtonesfrombeing
blasteddownthephonelineduringabroadcast.
PhoneLineSwitch
This switch acts as the switch-hook for the telephone line. The Hang
Up position is the normal on-hook position when you are not using
the line or you are waiting for a call. When you want to place a call,
or when a call comes in, switch to the Dial/Talk position. Keep this
switch in the Hang Up position if you are using the PBX Handset
Interface.
6 7
Operating (continued)
Power
RemoteMix 3.m is powered by two 9 volt alkaline batteries located
under the cover on the bottom of the unit. Under normal use, you
should get at least 30 hours of continuous use from a fresh set of
batteries.
To test the batteries, simply press the Battery Test button on the
front of the unit. If the LED lights, the batteries are still good. The
unit may still function if the LED does not light, but there will be
significant audio distortion and a loss of level as the batteries
continuetodischarge.
The batteries are wired in parallel so it is important to replace both
at the same time with identical batteries. If two fresh batteries are
not available, it is better to run using only one good battery. The
twobattery fixturesare wiredin parallel so it does not matter which
onegetsthesinglebattery.
We also provide a high quality, regulated AC to DC adapter to
powerRemoteMix 3.m when AC power is available. Simply plug it
intothebackofRemoteMix3.mandplugthetransformerintoa110
VAC wall outlet. When the power connector is inserted into the
jack,thebatteries are bypassed. TheACadapterdoesnotcharge
thebatteries.
HybridNullAdjustment (optional)
The receive side of RemoteMix 3.m has a hidden fine tuning control
which is adjusted by inserting a screwdriver into the back of the unit
just below the words Null Adj. and turning left or right. This is a ten-
turn potentiometer. This adjustment controls the level of transmit
audio that appears on the receive audio jacks. The null circuit
matches the characteristics of RemoteMix 3.m with the
characteristics of the telephone line. Although much of the transmit
audio can be removed, this is not the equivalent of a mix-minus
output.
Hybrid Null Adjustment (optional)
The amount of transmit/receive isolation will depend on the quality
of the telephone line. This circuit is factory set to give a good mix
onanaveragetelephoneline,andisthereforeperfectforrecording
bothsidesofatelephoneinterview.
To find the absolute null for any telephone line, follow this
procedure:
1. Placeacalltoaquietlocation.
2. Send a signal down the line at moderate levels, this can be
aprerecordedtapeofmusicorspeech,orpreferablyatestsignal.
3. Connect the Receive line output to a meter or scope, or
listentothereceivesignalovertheheadphones. Besuretoturnup
the From Phone or Headphones volume control depending on
whichmethodyouareusingtomonitorthereceivesignal.
4. On the back of RemoteMix 3.m, below the words Null Adj.,
there is a hole for a small flat blade screwdriver. This is a 10-turn
potentiometer to allow for very sensitive adjustments. Try to
remember the position of the blade, and the number of turns you
are making as you first adjust clockwise, and then back to the
originalposition,andthencounterclockwise.
The goal is to adjust the null signal until the receive signal
contains a minimum amount of transmit audio. However, if you
want a good mix of transmit and receive signals, you must have
someone on the far end speak or send audio down the line as you
adjustfortheproperbalance.
To Reset Null to Factory Setting:
Disconnect from phone line, switch the Phone Line switch to On
Hook, and the set the null to minimum. This presets the null to an
average phone line impedance.
6 7
Operating (continued)
Power
RemoteMix 3.m is powered by two 9 volt alkaline batteries located
under the cover on the bottom of the unit. Under normal use, you
should get at least 30 hours of continuous use from a fresh set of
batteries.
To test the batteries, simply press the Battery Test button on the
front of the unit. If the LED lights, the batteries are still good. The
unit may still function if the LED does not light, but there will be
significant audio distortion and a loss of level as the batteries
continuetodischarge.
The batteries are wired in parallel so it is important to replace both
at the same time with identical batteries. If two fresh batteries are
not available, it is better to run using only one good battery. The
twobattery fixturesare wiredin parallel so it does not matter which
onegetsthesinglebattery.
We also provide a high quality, regulated AC to DC adapter to
powerRemoteMix 3.m when AC power is available. Simply plug it
intothebackofRemoteMix3.mandplugthetransformerintoa110
VAC wall outlet. When the power connector is inserted into the
jack,thebatteries are bypassed. TheACadapterdoesnotcharge
thebatteries.
HybridNullAdjustment (optional)
The receive side of RemoteMix 3.m has a hidden fine tuning control
which is adjusted by inserting a screwdriver into the back of the unit
just below the words Null Adj. and turning left or right. This is a ten-
turn potentiometer. This adjustment controls the level of transmit
audio that appears on the receive audio jacks. The null circuit
matches the characteristics of RemoteMix 3.m with the
characteristics of the telephone line. Although much of the transmit
audio can be removed, this is not the equivalent of a mix-minus
output.
Hybrid Null Adjustment (optional)
The amount of transmit/receive isolation will depend on the quality
of the telephone line. This circuit is factory set to give a good mix
onanaveragetelephoneline,andisthereforeperfectforrecording
bothsidesofatelephoneinterview.
To find the absolute null for any telephone line, follow this
procedure:
1. Placeacalltoaquietlocation.
2. Send a signal down the line at moderate levels, this can be
aprerecordedtapeofmusicorspeech,orpreferablyatestsignal.
3. Connect the Receive line output to a meter or scope, or
listentothereceivesignalovertheheadphones. Besuretoturnup
the From Phone or Headphones volume control depending on
whichmethodyouareusingtomonitorthereceivesignal.
4. On the back of RemoteMix 3.m, below the words Null Adj.,
there is a hole for a small flat blade screwdriver. This is a 10-turn
potentiometer to allow for very sensitive adjustments. Try to
remember the position of the blade, and the number of turns you
are making as you first adjust clockwise, and then back to the
originalposition,andthencounterclockwise.
The goal is to adjust the null signal until the receive signal
contains a minimum amount of transmit audio. However, if you
want a good mix of transmit and receive signals, you must have
someone on the far end speak or send audio down the line as you
adjustfortheproperbalance.
To Reset Null to Factory Setting:
Disconnect from phone line, switch the Phone Line switch to On
Hook, and the set the null to minimum. This presets the null to an
average phone line impedance.
8 9
Specifications
Inputs:
Line: Connector RCAphonoJack
InputImpedance 20kohms
Level 250mVRMS
(-10dBmnom.)
Microphone: Connector FemaleXLR
InputImpedance 1000ohms
Mic/Line: Line=-30dBfrommicrophonegain.
Handset: Modular4pin/4wirehandsetjack
Electret/dynamicmicrophonebias.
Outputs:
Line: Connector RCAphonoJack
OutputImpedance 50ohms
Level 250mVRMS
(+5dBmmax.)
Balanced: Connector MaleXLR
OutputImpedance 200ohms
Level 500mVRMS
(+12dBmmax.)
Headphone: Connector 1/4"stereojacks
OutputImpedance 8ohms
Power 1/2watt
PhoneLine: Connector RJ11C
Isolation 1500volts
Ringer(REN)1.2B
HandsetInterface:Switchableelectret,dynamic,carbon
handsetmicrophonebiastypes.
Keypad: DTMF(DualToneMulti-Frequency)
Pulse Dialing
FCC Registration
Your new JK Audio product has been registered with the Federal
Communications Commission (FCC). This product complies with
thestandardsinPart68oftheFCCrules.
1. Connection and use with the nationwide
telephonenetwork
The FCC requires that you connect this telephone
equipment to the national telephone network through a
USOCRJ-11Cmodulartelephonejack.
Thisequipment may not be usedwith Party Line Service or
CoinTelephoneLines.
Thisequipmentishearingaidcompatible.
2. Informationforthetelephonecompany
Upon request from your local telephone company, you are
requiredtoprovidethefollowinginformation:
a) The "line" to which you will connect the telephone
equipment(thatis,yourtelephonenumber),and
b) The telephone equipment's FCC registration number.
This can be found on the bottom of your telephone
equipment,and,
c)theringerequivalencenumber(REN)forthisequipment.
The REN is used to determine the quantity of devices which
will be connected to the telephone line. Excessive RENs on the
telephone line may result in the devices not ringing in response to an
incoming call. In most, but not all areas, the sum of the RENs should
not exceed 5.0. To be certain of the number of devices that may be
connected to the line, as determined by the total RENs, contact the
local telephone company.
8 9
Specifications
Inputs:
Line: Connector RCAphonoJack
InputImpedance 20kohms
Level 250mVRMS
(-10dBmnom.)
Microphone: Connector FemaleXLR
InputImpedance 1000ohms
Mic/Line: Line=-30dBfrommicrophonegain.
Handset: Modular4pin/4wirehandsetjack
Electret/dynamicmicrophonebias.
Outputs:
Line: Connector RCAphonoJack
OutputImpedance 50ohms
Level 250mVRMS
(+5dBmmax.)
Balanced: Connector MaleXLR
OutputImpedance 200ohms
Level 500mVRMS
(+12dBmmax.)
Headphone: Connector 1/4"stereojacks
OutputImpedance 8ohms
Power 1/2watt
PhoneLine: Connector RJ11C
Isolation 1500volts
Ringer(REN)1.2B
HandsetInterface:Switchableelectret,dynamic,carbon
handsetmicrophonebiastypes.
Keypad: DTMF(DualToneMulti-Frequency)
Pulse Dialing
FCC Registration
Your new JK Audio product has been registered with the Federal
Communications Commission (FCC). This product complies with
thestandardsinPart68oftheFCCrules.
1. Connection and use with the nationwide
telephonenetwork
The FCC requires that you connect this telephone
equipment to the national telephone network through a
USOCRJ-11Cmodulartelephonejack.
Thisequipment may not be usedwith Party Line Service or
CoinTelephoneLines.
Thisequipmentishearingaidcompatible.
2. Informationforthetelephonecompany
Upon request from your local telephone company, you are
requiredtoprovidethefollowinginformation:
a) The "line" to which you will connect the telephone
equipment(thatis,yourtelephonenumber),and
b) The telephone equipment's FCC registration number.
This can be found on the bottom of your telephone
equipment,and,
c)theringerequivalencenumber(REN)forthisequipment.
The REN is used to determine the quantity of devices which
will be connected to the telephone line. Excessive RENs on the
telephone line may result in the devices not ringing in response to an
incoming call. In most, but not all areas, the sum of the RENs should
not exceed 5.0. To be certain of the number of devices that may be
connected to the line, as determined by the total RENs, contact the
local telephone company.
10 11
FCC Registration (continued)
3. RepairInstructions
If it is determined that your telephone equipment is
malfunctioning, the FCC requires that it not be used and
that it be unplugged from the modular outlet until the
problem has been corrected. Repairs to this telephone
equipment can only be made by the manufacturer or its
authorized agents or by others who may be authorized by
the FCC. For repair procedures, follow the instructions
outlinedunderthewarrantysectionofthemanual.
4. Rightsofthetelephonecompany
If telephone equipment is causing harm to the network, the
telephone company may temporarily discontinue your
telephoneservice. Ifpossible,they'llnotifyyoubeforethey
interruptservice. Ifadvancednoticeisn'tpractical,you'llbe
notifiedassoonaspossible.You'llbegiventheopportunity
to correct the problem, and you'll be informed of your right
tofileacomplaintwiththeFCC.
Your telephone company may make changes in its facilities,
equipment, operations or procedures that could affect the proper
functioning of your JK Audio product. If such changes are planned,
you'll be notified by your telephone company.
FCC Part 15 Compliance
Thisequipmenthasbeentestedandfoundtocomplywiththelimits
for a Class A digital device, pursuant to Part 15 of the FCC Rules.
Theselimitsaredesignedtoprovidereasonableprotectionagainst
harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and
canradiateradiofrequencyenergyand, if not installed andusedin
accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the
interferenceathisownexpense.
Changes or modifications not expressly approved by JK Audio can
void the user's authority to operate the equipment.
10 11
FCC Registration (continued)
3. RepairInstructions
If it is determined that your telephone equipment is
malfunctioning, the FCC requires that it not be used and
that it be unplugged from the modular outlet until the
problem has been corrected. Repairs to this telephone
equipment can only be made by the manufacturer or its
authorized agents or by others who may be authorized by
the FCC. For repair procedures, follow the instructions
outlinedunderthewarrantysectionofthemanual.
4. Rightsofthetelephonecompany
If telephone equipment is causing harm to the network, the
telephone company may temporarily discontinue your
telephoneservice. Ifpossible,they'llnotifyyoubeforethey
interruptservice. Ifadvancednoticeisn'tpractical,you'llbe
notifiedassoonaspossible.You'llbegiventheopportunity
to correct the problem, and you'll be informed of your right
tofileacomplaintwiththeFCC.
Your telephone company may make changes in its facilities,
equipment, operations or procedures that could affect the proper
functioning of your JK Audio product. If such changes are planned,
you'll be notified by your telephone company.
FCC Part 15 Compliance
Thisequipmenthasbeentestedandfoundtocomplywiththelimits
for a Class A digital device, pursuant to Part 15 of the FCC Rules.
Theselimitsaredesignedtoprovidereasonableprotectionagainst
harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and
canradiateradiofrequencyenergyand, if not installed andusedin
accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the
interferenceathisownexpense.
Changes or modifications not expressly approved by JK Audio can
void the user's authority to operate the equipment.
2/00
JK Audio Inc.
2701 N. 45th Road, Sandwich, IL 60548 (815) 786-2929
Warranty
RemoteMix 3.m is covered by a 2 year warranty to be free from
defective workmanship and materials. In the event that the
RemoteMix 3.m needs repair, you must call us to get an
authorization, and then carefully pack and ship it to us. You will
pay for shipping to us and we will pay for return back to you,
UPS ground. No free repairs will be made if the defect was
caused by misuse, weather conditions, or other cause, except
for defective workmanship or materials. THERE ARE NO
EXPRESS OR IMPLIED WARRANTIES WHICH EXTEND
BEYOND THE WARRANTY HERE MADE.
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