Johansson 8180 User manual

User Manual
Octo AV Modulator
Ref. 8180

OCTO AV MODULATOR (REF. 8180)
2
CONTENTS
1. INTRODUCTION ...............................................................................3
1.1. Product description ...................................................................................3
1.2. Hardware installation ................................................................................3
1.3. Mounting the Octo AV Modulator ................................................................4
1.4. Connecting the AV cables ..........................................................................5
1.5. Configuring the Octo AV Modulator .............................................................6
NAVIGATING THROUGH THE MENU.............................................................6
MENU OVERVIEW ..................................................................................6
2. TECHNICAL SPECIFICATIONS ............................................................10
3. SAFETY INSTRUCTIONS ...................................................................11
4. CONDITIONS OF WARRANTY .............................................................12
No part of this manual may be copied, reproduced, transmitted, transcribed or translated into any language without
permission.
Unitron reserves the right to change the specifications of the hardware and software described in these manuals at any
time.
Unitron cannot be held liable for any damages resulting from the use of this product. Specifications are
subject to change without notice. 10/19
©Unitron - Frankrijklaan 27 - B-8970 Poperinge - Belgium
T+32 57 33 33 63 F+32 57 33 45 24
[e-mail]
www.unitrongroup.com

OCTO AV MODULATOR (REF. 8180)
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1. INTRODUCTION
1.1. Product description
The compact 8 channel analog modulator upconverts 8 analog CVBS signals (composite video
baseband signal) independently to VHF or UHF channels. It is designed for systems that have
not yet switched to DVB-T
•8 analog inputs (each 1 video cinch + 2 audio cinch (L & R))
•processes up to 8 analog channels
•Multi-TV standard support: NTSC, PAL, SECAM (B/G,I, D/K, L, M/N)
•1 RF output + 1 Test output (-30dB)
•Built-in high power RF booster
•easy to configure with the Johansson button and 4 digits display
•selectable Region, Standard, Mode, Output Channel
•adjustable RF Level, Audio Level and Video Level
•very compact housing with detachable power supply and strain reliefs
•low power consumption
1.2. Hardware installation

OCTO AV MODULATOR (REF. 8180)
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1.3. Mounting the Octo AV Modulator
•Important: Mount the module vertically to a wall
in a well-ventilated room and leave a minimum
space of 15 cm around the product to guarantee a
maximum ventilation of the product
•Connect an earth wire to the grounding clamp
•Connect the power adapter cord to the power
supply socket. DC power presence is indicated by
flashing dots
•Connect the AV inputs
•Connect a coaxial cable to the output connector
for distribution of the signal
•Connect a network analyser to the test port to control the signal quality
•Configure the Octo AV Modulator using the rotary button, see below
•The power adapter can easily be replaced without disconnecting the product. To do so,
open the top left plastic cover by pushing the click at the opposite side of the mains
connector. See specifications for the type of the power adaptor.

OCTO AV MODULATOR (REF. 8180)
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1.4. Connecting the AV cables
TOP VIEW
BOTTOM VIEW

OCTO AV MODULATOR (REF. 8180)
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1.5. Configuring the Octo AV Modulator
NAVIGATING THROUGH THE MENU
Use the Johansson rotary/push button to navigate through the menu. This is very
straightforward and simple. The table below shows how the rotary/push should be used:
Push the button 3sto enter start the
configuration
Push the button to enter the
configuration step (e.g. Region)
Rotate the button, to scroll through the
different parameters. Tap to confirm.
MENU OVERVIEW
DISPLAY READOUT
EXPLANATION
Stand-by mode is indicated by flashing dots on display.
Push the rotary button for 3 seconds to access the menu.
When you enter the configuration step, the LEDs of the 8
AV CHANNELS will be GREEN.
Tap to select the channel plan from your region:
UHF.E = UHF Europe = S38 - E69
Lt1.E = UHF Europe limited to CH60 = S33 - E60
Lt2.E = UHF Europe limited to CH48 = S27 - E48
LAT.A = Latin America = CH 14 –79
When the region is updated, all 8 modulators will be set to
OFF. This way you avoid unwanted channels being
broadcasted by accident.
Tip: to switch off all modulators at once, instead of
selecting them one by one, use the region selection and
select the same region, all modulators will be OFF.
Tap to confirm.
Scroll right to go to next step.

OCTO AV MODULATOR (REF. 8180)
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Tap to select the Modulator Standard:
PAL BG
PAL I
PAL DK
NTSC M
SECAM L
Tap to confirm.
Scroll right to go to next step.
Tap to select the AV Channel you want to set.
AV Channel = 1 to 8
For example, if you want to set AV Channel 1, tap to
confirm and scroll to the next step.
The LED of AV Channel 1 will stay GREEN.
In the previous step, you have selected an AV channel.
Now in this step you can select the RF channel for the
selected AV channel.

OCTO AV MODULATOR (REF. 8180)
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OFF = AV Channel will not on RF output
Tap to confirm.
Scroll right to go to next step.
Note: Because this is a Double Sideband Modulator, you
cannot select adjacent and identical channels of different
AV inputs. For example If you select AV CH1 = E_25, then
it is not possible to select E_24, E_25 or E_26 on other AV
inputs.
In the previous step, you have selected the RF channel for
an AV channel. Now in this step you can select the RF
Attenuator for the selected AV channel.
Tap to set the RF Attenuator:
Select between 0 –20 dB in steps of 2dB
0dB = maximum output level: 105 BµV
20dB = 85dBµV
This way you can equalise your output signal
Tap to confirm.
Scroll right to go to next step.
Tap to select the Audio Level:
Select between 0 and -7 in steps of 1
0 = No attenuation = Maximum Volume
-7 = Max attenuation = Minimum Volume
This setting allows to equalise the volume between all
transmitted channels.
Tap to confirm.
Scroll right to go to next step.

OCTO AV MODULATOR (REF. 8180)
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Tap to select the Video Level:
1.0PP = 1.0V peak peak = Default setting
1.3PP = 1.3V peak peak = For higher Video Level
Tap to confirm.
Scroll right to go to next step.
Tap to select if you want to lock the device.
YES = Locked
NO = Not locked
Once the device is locked, the display at startup will show
00. Turn the button to 50 and tap and the device will be
unlocked.
RESET DEVICE:
To reset the device to factory settings, unplug the power
cord, tap the rotary button and plug in the power cord.
Hold the rotary button until “DONE” is displayed.
FACTORY SETTINGS (After RESET DEVICE):
Region = Lt2.E (LTE2 Europe)
Standard = PLbG (PAL BG)
Channels for modulators 1-8 = S27 / S29 / S31 / S33 /
S35 / S37 / S39 / S41
RF ATTN = 0dB
AUDIO ATTN = -1
VID LVL = 1Vpp
Lock = OFF

OCTO AV MODULATOR (REF. 8180)
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2. TECHNICAL SPECIFICATIONS
Octo AV Modulator 8180
Modulator Type
-
Double Sideband Modulator
Inputs
-
8 Analog Inputs (8 x Video + 16 x Audio)
Outputs
-
1 RF Output + 1 RF Test (-30dB) Output
Connectors
-
Yellow Cinch: Video
Red and White Cinch: Audio L+R (converted
to Mono (L+R))
Standards
-
PAL –SECAM - NTSC (B/G,I, D/K, L, M/N)
Video
Vpp
1 or 1.3
Picture Sound Ratio
dB
13
Audio S/N
dB
59 (for FM (PAL & NTSC))
Video S/N
dB
54 (100% White 1 Vpp)
Channel Plans
-
UHF (S38 - E69) = 52 Ch. / 8 MHz spacing
Lt1.E (S33 - E60) = 48 Ch. / 8 MHz spacing
Lt2.E (S27 - E48) = 43 Ch. / 8 MHz spacing
LTAM (CH 14 - 79) = 65 Ch / 6 MHz spacing
RF Attenuator
(independent per modulator)
dB
20 in steps of 2dB
RF Output Power (60dB/IM3)
RF Output Power per carrier
dBµV
dBµV
114
105
Test Port
dB
-30
Configuration
-
Region, Standard, AV Channel, RF Channel,
Audio Level, Video Level, Lock
Operating Temperature
°C
-5 to +55
Power Supply
Vac
90 –240
Embedded power adapter
-
5V –3A Jack Ø 2.1mm
Power Consumption
W
4
Dimensions
mm
217 x 165 x 59
Weight
kg
0,8