Transcript Calculating Signal Loss - SPLITTERS

Configuration Overview
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Agenda
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General RF setup
Physical connections
Review of front panel options
Overview of Maestro
configuration
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General RF information
• EU HD units output DVB-T by default, DVB-C also available
• DVB-T tuner is required
• If HD signal is being sent the tuner must support HD video
• DVB-T requires a full RF channel (8MHz by default) for each video input
• DVB-C uses a single RF channel (8MHz by default) for 2 video inputs
• HDb2380 (composite input) currently only outputs DVB-C
• RF power must be balanced with existing modulators or feeds
• RF output can be set between +45dBmV and +25dBmV
• ZvPro defaults to +25dBmV
• HDbridge2000 defaults to +45dBmV
• New to RF distribution – check out “Using Coaxial Cabling for Video
Distribution” tutorial on our website
• http://zeevee.com/support/training (Design & Installation tab)
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Modulated Channel with Existing Feed
SATELLITE RECEIVER, STB,
CABLE BOX, COMPUTER OR
DIGITAL SIGNAGE PLAYER
VIDEO IN
Modulator
EXISTING MODULATED,
TERRESTRIAL OR CABLE FEED
COAX OUT
SIMPLE
SPLITTER,
BACKWARDS!
STANDARD
COAX
“COMBINE” YOUR
NEW CHANNEL
INTO THE
EXISTING LINEUP
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Ensure signal is
balanced and
there are no
channel or
frequency conflicts
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DRIVE UNLIMITED
DISPLAYS.
JUST TUNE IN YOUR
NEW CHANNEL
ADVANTAGES OF BROADCASTING
HD OVER COAX
Adding a new channel to existing cable is
simple – just use a splitter backwards!
Adding another TV is simple – just use a
simple coax splitter!
Can upgrade or add channels one at a
time – no need to do everything at once
Calculating Signal Loss: Splitters/Combiners
Most Digital TVs work best with: -10dBmV to +10dBmV input
Each splitter, combiner and run of coax causes signal loss
Combiners are simply splitters backwards
Calculating Signal Loss - SPLITTERS
A 2 to 1 splitter reduces signal strength by 3.5dB
2 to 1 splitter
Signal with 3.5dB loss
Signal with 3.5dB loss
Example: +20dBmV input?
In the above example, an input signal of +20dB would emerge
from the splitter at +16.5dB
Calculating Signal Loss - SPLITTERS
3 to 1 splitters are essentially two 2 to 1 splitters wired together.
Input signal
3 to 1 splitter internal
wiring, in effect
Signal with 3.5dB loss
Signal with 7dB* loss
Signal with 7dB* loss
*Losses add up. In this example,
there’s a 3.5dB loss when the
signal is first split.
Then another 3.5dB
loss when the signal is
split again...
…leaving a 7dB loss
at the second two
outputs.
Calculating Signal Loss - SPLITTERS
4 to 1 splitters are essentially three 2 to 1 splitters wired together, and reduce
signal output accordingly.
4 to 1 splitter internal
wiring, in effect
Signals with ? loss
Signals with ? loss
What is the signal loss at each of the outputs?
Calculating Signal Loss - SPLITTERS
4 to 1 splitters are essentially three 2 to 1 splitters wired together, and reduce signal output
accordingly.
4 to 1 splitter internal
wiring, in effect
-7dB
-7dB
-7dB
-7dB
ANSWER…. -7dB at each drop
Calculating Signal Loss - COAX
General rule for loss over RG-6 is -3dBmV for every 100ft (30 meters)
Coax Cable Signal (Attenuation) Loss per 100ft
Loss at
RG-59
RG-6
RG-11
1MHz
0.4dB
0.2dB
0.2dB
10MHz
1.4dB
0.6dB
0.4dB
50MHz
3.3dB
1.4dB
1.0dB
100MHz
4.9dB
2.0dB
1.6dB
200MHz
7.3dB
2.8dB
2.3dB
400MHz
11.2dB
4.3dB
3.5dB
700MHz
16.9dB
5.6dB
4.7dB
900MHz
20.1dB
6.0dB
5.4dB
1000MHZ
21.5dB
6.1dB
5.6dB
Physical connections – Audio and Video inputs
• Video/Audio Inputs
• Composite – HDb2380 only
• 8 inputs for PAL/NTSC video and analog audio
• HDMI – ZvPro800 only
• 1 or 2 HDMI inputs with digital audio (via HDMI)
and analog audio via 3.5mm input
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Physical Connections - Audio and Video Inputs
• Component – via “Hydra cable full DIN connector with break out
to component, analog and digital
audio and composite for teletext
(close captions) only
• VGA – via full DIN with 3.5mm
analog audio
• Sold separately for use with
HDb2500/2600 and ZvPro 600
• Ships with HDb2500 and HDb2600
• Available for purchase with ZvPro600
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Physical connections - other
• All models output over coax
• RG6 is recommended but other coax cable types can be used, be
sure to adjust for different loss of signal
• Ethernet interface for configuration and management
• HDb2000 series has dual connectors, this allows for daisy chain of
units for quick set up
• Not recommend for long term management
• Delay Match Audio Out – ZvPro only
• Analog audio out with adjustable latency
for use with distributed audio systems
• Requires analog audio as input and is linked to audio from input 1
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Front Panel Display
• Top line shows IP address for logging into Maestro
• Each channel has graph to show encoding status
• Use arrow buttons to scroll between channels and OK to select
each time for more detail
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Front Panel Display
• For example when the IP address is selected there are more details like
uptime, serial number and firmware revision.
• Also include option to update firmware – needs internet access
• And reset IP address – for DHCP only, acts as a “release/renew”
• Hold left and right arrows down during start up for options to reset
defaults or revert firmware
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Front Panel Display – Configuration options
• Holding the left and right arrows when unit is fully powered up will put the
unit into “setup” mode
• Use arrow buttons to select option to edit such as RF# and RF power
• Hit OK to select an option for editing and arrows to change options
• Be sure to select Apply to save changes
Configuration Overview – Maestro
• Connect to unit directly or via LAN
• Macs may require LAN or switch for connectivity
• Enter IP address from front panel display into browser
• IE 8 or higher, Chrome, Firefox, etc
• Default username/password is admin/admin
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HDbridge 2000 Management – Status Tab
Tabs across top for configuration
and management
General status
information and warning
messages
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HDbridge 2000 Management – Status Tab
Button to manage all (note the
message “1 connected 52 not
connected” this shows 53
HDb2000/ZvPros found) on the
network
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Maestro – Manage all
Units with mismatched firmware
cannot be managed together.
Similarly, passwords must match to
manage multiple units.
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Maestro – Channel Plan
Set RF channel for broadcast.
Channels are paired together
by frequency. Update the first,
the second updates
automatically. Default is based
on CCIR
Set Logical Channel
Number – this is
displayed in guide
information
Hit Apply to save changes
Reset to clear any changes
that haven’t yet been saved.
Program number – must be unique
across all modulated channels
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Maestro – Channel Plan
Other config options: Short and Long
Channel Name, Ratings (v-chip), Audio
and Video sources
You can also enable or disable
each individual digital channel.
Program number must be unique
across all modulators
If one of the inputs is not being
used disable the channel and
the channel will not be displayed
at the TV.
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Maestro – Channel Plan Advanced Options
Audio/Video delay options, allow for
small adjustments to audio/video
latency for lip sync purposes
Advanced control check
box
STB channel allows for tracking
information about the source in
Maestro for consolidated
location of information.
This field is informational only.
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Maestro – VGA settings
When your source is VGA or HDMI sources are being used Res and Calibrate options become
available.
The Res columns allow you to add slightly smaller resolutions to the list of resolutions (EDID)
sent to the source. Selecting these ‘underscan’ resolutions will allow for the image to fit
properly on TVs that still have ‘overscan’ – the outside edge of the image is dropped from
view.
The Calibrate button can be used to help center an image.
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Maestro – Channel Plan Auto-increment
Auto-increment allows for setting RF and channel
information in a few easy steps. Enter the first RF
channel you wish to use, all other channels will
increment automatically.
Check the “channel” option, enter starting channel, or
select option to match the channel to the RF.
Then hit set, channels will update for your review, they
are not saved until you hit “apply”
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Maestro – Channel Plan Freq instead of Channel
All DVB-T units can also be configured with
a frequency instead of a channel.
Toggling between channels or frequencies
is done on the RF tab
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Maestro – RF tab
Change RF between 45 and 25
dBmV. Channels must be with in
12dB of each other.
Change RF standard between
DVB-T and DVB-C
Cable plan options are CCIR, None
(enter frequency directly) and
Australia others will be added with
future firmware updates
Turn full RF off.
Broadcast for that channel
will be stopped.
Bandwidth defaults to
8MHz but can be changed
to 7MHz to match regional
requirements
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Maestro – RF tab
Network and Original Network IDs
are used in the data stream to
ensure the channel information is
displayed correctly by the TV tuner
Transport ID must be unique
across all channels in a head end
3 letter country
code
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Maestro – Device Tab
Reboot the unit
Rest all settings to factory defaults
including password and IP information
Change password
Name the device for easy
recognition when managing
multiple units.
Set custom idle screen to use in place
of the Zv logo
Update and Revert firmware buttons.
Firmware update requires file to be downloaded to local PC
first (available on the website).
Note – When in “Manage All” mode units with different
firmware will be available on the Device tab to update
firmware.
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Maestro – Network Tab
IP information can be left as default DHCP or configured
for Static IP information.
When changing between IP types, a reboot is required
to initiate the new IP address.
If you change the IP address and can no longer
communicate with the unit, use the front panel display
to reset to defaults.
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Maestro – Support Tab
View temps, uptime and send
troubleshooting report.
Report is sent directly to server if internet
access is available.
If it can’t connect to the server it is saved
locally and can be emailed to support.
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Questions?
ZeeVee Technical Support is there for
you!
877-493-3833
or
Zeevee.com/contact
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