SKYTRONIC 171.316 User manual

1
2-Channel VHF Wireless
Microphone System
Operation Manual
Model Nos: 171.316 173.8MHz + 174.8MHz (UK)
171.317 175.0MHz + 174.0MHz (UK)
171.319 197.32MHz + 199.82MHz (EUROPE)
171.320 198.25MHz + 199.70MHz (EUROPE)

2
WIRELESS TRANSMITTER
POWER
VOLUME
CHANNEL A
RF AF LEVEL
VOLUME
CHANNEL B
RF AF LEVEL
PROFESSIONAL 2-CHANNEL WIRELESS SYSTEM
ANT.AANT.B
P O W E R
1. Power Light
2. Power Switch
3. Antenna
4. CH-A Volume Control
5. CH-A RF Signal Light
6. CH-A AF Light
7. CH-B Volume Control
8. CH-B RF Signal Light
9. CH-B AF Light
10. Rack Mounting
V O L U ME
C HA NN E L A
R F AF LE VE L
V O L U ME
C HA NN E L B
R F AF L E V E L
P R OF E S S IO NAL 2-C HA NNE L WI R E L E S S S Y S T E M
AN T .A AN T .B
WIRELESS TRANSMITTER
POWER
VOLUME
CHANNEL A
RF AF LEVEL
VOLUME
CHANNEL B
RF AF LEVEL
PROFESSIONAL 2-CHANNEL WIRELESS SYSTEM
ANT.AANT.B
Two channel receiver
Handheld transmitter Antenna
AC adaptor Audio cable
WIRELESS TRANSMITTER
POWER
VOLUME
CHANNEL A
RF AF LEVEL
VOLUME
CHANNEL B
RF AF LEVEL
PROFESSIONAL 2-CHANNEL WIRELESS SYSTEM
ANT.AANT.B

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PRECAUTIONS
• Avoid exposure of the system to rain or moisture.
• No user-serviceable parts inside the system. Refer all servicing to a qualified technician only.
• Handle the wireless system carefully, dropping or other shocks may cause failure.
• Avoid using the system where it may be subjected to heat, such as direct sunlight, near radiators or
other heat sources.
• Should any liquid be spilt on the system, stop using it immediately. It may be possible to dry the
system, but you should have it checked by a qualified technician before using it again.
• Take care with the mains power adapter and lead. If damaged in any way, do not use the system and
refer to a qualified technician for repair.
• Only use the system with the supplied components. Do not attempt to use with any other main power
supply adapter .
• If the is not going to be used for a while, remove the battery to prevent leakage. In the event of
electrolyte leakage inside the battery compartment, carefully remove the leakage with a damp cloth.
Take care not to get battery electrolyte in contact with your skin, however if it does, wash your hands
under a running tap. If electrolyte comes into contact with your eyes, seek medical advice immediately.
• Only replace the battery with the same or an equivalent type.
• Please dispose of old batteries in an environmentally friendly manner in accordance with the relevant
legislation.
• Do not use any solvents to clean any part of the wireless system.
2-CHANNEL VHF WIRELESS
MICROPHONE SYSTEM
Thank you for buying this Skytronic VHF Wireless System. Please read through these
operation instructions so you will know how to operate your model properly. After you read it,
put it away in a safe place for future reference.
Model Nos: 171.316 173.8MHz + 174.8MHz (UK)
171.317 175.0MHz + 174.0MHz (UK)
171.319 197.32MHz + 199.82MHz (EUROPE)
171.320 198.25MHz + 199.70MHz (EUROPE)

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Operation
Unscrew the battery cover at the end of microphone, put a 9V battery into compartment observing
correct polarity, then close the cover.
Move "ON/OFF" switch to "ON" position, "PWR" indic ator will light for one second and then go off. This
indicates correct operation. If it doesn't come on, please check the voltage of battery or polarity. If the
"PWR" indicator lights red, this indicates the battery power is low. Please replace with a fresh battery.
WIRELESS MICROPHONE
SPECIFICATIONS
A. Overall system
Oscillation mode: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quartz controlled
Carrier Frequency Range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VHF 169-270MHz
Stability: . . . . . . 0.005%
Max Deviation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56KHz with level limiting
Dynamic Range: >100dB
S/N Ratio: . . . . . . >80dB
T.H.D: . . . . . . . . . <0.5%
Squelch: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Pilotone & Noise lock" dual squelch circuit
Frequency Response: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100Hz~15kHz
Operating range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 metres
B. Receiver
Sensitivity: 6dB V at S/N>70dB
Image Rejection:. >60dB
Stability: . . . . . . . >80dB
Audio output: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12db/600ohms unbalanced and balanced
Power supply: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12VDC/0.5A
Dimensions (mm):. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420 x 208 x 45mm
C. Transmitter
Mic capsule: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic microphone (Handheld mic)
Antenna: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Built-in housing (Handheld transmitter)
External (Belt pack transmitter)
RF Output: . . . . <10mW
Spurious: . . . . . . . . . . . . . . . . . . <-40dB
Battery:. . . . . . . . . . . 1 x 9V (6F22, PP3)
Dimensions. . . . . . . . . . . 240 x 49mmØ

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P O W E R
1. Power Light
2. Power Switch
3. Antenna
4. CH-A Volume Control
5. CH-A RF Signal Light
1
2
33
410
10
6. CH-A AF Light
7. CH-B Volume Control
8. CH-B RF Signal Light
9. CH-B AF Light
10. Rack Mounting
V O L U ME
C HAN NE L A
R F AF L E VE L
V O L U ME
C HAN NE L B
R F A F L E V E L
P R OF E S S IONAL 2-C HA N N E L WIR E L E S S S Y S T E M
7
5 6 8 9
AN T .A AN T .B
XLR MIXED MIXED CH-A SQB SQA
DC IN
12V/500mA
11.Balanced output jack
12.Unbalanced output jack
13.CH-A Output jack
14.Squelch adjustor
15.DC Power in
11 12 13 14 15
and
RECEIVER FRONT PANEL
Operation
Fix the two antennas correctly. Switch on the power of receiver, the red indicator of power will come on
to show it's working normally. Switch on the power of transmitter, the red indicator RF/channelA, RF/
channelB, will come on to show the signal is strong or not when it's working. AF LEVEL green indicators
are blinking to show the audio level is high or low in using this wireless microphone system. Adjust
the volume of the receiver/transmitter/amplifier according to request. Please switch off the receiver/
transmitter/amplifier when this wireless microphone system is not being used.
RECEIVER REAR PANEL
SQUELCH
The squelch control on the rear of the receiver is preset well at the factory, if you must use the system
in an area with considerable RF interference and there is some noises from the receiver when your
transmitter is off, you can adjust the squelch control, so the system will receive the signal from your
transmitter only but squelch or eliminate the unwanted background RF noise. This adjustment can cause
reduction in useable range of the wireless transmitter, so set the control to the lowest position that
reliablely mutes the unwanted RF signals.
Note that switching the microphone on and off can cause interference that will be heard if the
microphone volume level of the amplifier system is still set high.
11. Balanced mixed output jack
12. Unbalanced mixed output jack
13. CH-A unbalanced output jack
14.Squelch adjuster
15. DC power in
1. Power Light
2. Power Switch
3. Antenna
4. CH-A Volume Control
5. CH-A RF Signal Light
6. CH-A AF Level Indicator
7. CH-B Volume Control
8. CH-B RF Signal Light
9. CH-B AF Level Indicator
10. Rack Mounting

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P rofe ss iona l mix er
MIC LIN E MIC LIN E MIC LIN E M IC LINE MIC LINE
XL R M IXE D MIXE D C H-A S QB S QA
DC IN
12V/50 0mA
SYSTEM INSTALLATION
Using the supplied screened jack-to-jack lead, connect from the MIXED jack socket to the "MIC IN"
socket on amplifier. Another way, using optional lead of balanced output, connect from "XLR MIXED"
socket on receiver to professional mixer. Plug the mains power adaptor from "DC 12V" jack to a suitable
mains power socket.
IMPORTANT
Install main unit 1.5m higher than ground level and 1.5m distance from wall

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The on air
indicator does
not light up
No sound
The sound is
distorted
A howling noise
heard from the
speakers.
The wireless microphone is not turned on.
The microphone receiver is not turned on.
The microphone receiver is not connected
properly.
The battery in the wireless microphone is
weak.
The microphone receiver is not turned on.
The connected audio equipment is not
turned on.
The speakers/headphones. are not
connected to the audio equipment.
The battery in the wireless microphone is
weak.
The AUDIO OUT on the receiver is not set
correctly.
The distance between the wireless
microphone and speakers are too close.
The battery in the wireless microphone
is weak
Turn on the wireless microphone
Turn on the microphone receiver
and the connected audio equipment
Turn on the microphone receiver
and the connected audio equipment.
Replace the battery
Turn on the microphone receiver
and the connected audio equipment.
Turn on the audio equipment.
Connect the speakers/headphones
Replace the battery.
Adjust the volume cotrols.
Move the wireless microphone away
from the speakers or change the
direction of the microphone.
Replace the battery.
TROUBLE SHOOTING

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