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Digital TV Tuner
User Manual
Authors:
Thanh San Nguyen
Korey Sewell
Advisors:
Prof. Tony Givargis
Prof. Nikil Dutt
Department of Computer Science
Center for Embedded Computer Science, UC Irvine
Digital TV Tuner User Manual - 2
Introduction:
This manual will provide step-by-step instructions for properly installing all
equipment and software for the Digital TV Tuner project. The manual will also cover
some configuration issues with QT-devel, which is installed properly in Redhat 9.0 but
GNU radio version 0.8 cannot find it during the installation process.
Overview:
The equipment/software page will give details on the hardware/software
requirements. Hardware installations page will give details on how to install all required
equipments. The procedures page will give a step-by-step instruction to install all
software and hardware. It will also give an overview of the commands. All these
commands are reference off the GNU RADIO website http://www.gnu.org/software/
gnuradio/
If there are any questions, comments, or suggestions please send an email to any one of
the following addresses:
Thanh San Nguyen Prof. Tony Givargis
snguyen@cs.ucr.edu givargis@ics.uci.edu
Korey Sewell Prof. Nikil Dutt
ksewell@cs.ucr.edu dutt@ics.uci.edu
Or visit our website for more details
http://www.cs.ucr.edu/~snguyen Or http://www.cs.ucr.edu/~ksewell
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Digital TV Tuner User Manual - 3
Equipment:
- Measurement Computing PCI-DAS4020/12 Analog/Digital card
- Microtune 4736 US version with a 36MHz IF output
- NEC PC2798GR bipolar analog integrated circuit and corresponding
eval-board
- Antenna for TV tuner
o Radio Shack catalog# 15-2151 ($35) model: VU-75 XR and cable
(this is a boom antenna, an indoor antenna would work as long as it
could receive a clear signal without any obstruction in my opinion)
- Antenna for FM radio
o This is not important any ordinary dipole FM antenna will be suffice
- Computer System
o This project is done with a Pentium III 1GHz processor, 256MB RAM
and 20GIG hard-drive (a faster hard-drive is recommended for TV
tuner project)
- 5V power supply with Banana Jack/Binding Post Connections.
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Digital TV Tuner User Manual - 4
- Appropriate Wires and Connecting Parts (Pictures of the following components
can be found at the website)
o Basic Electronic Wires
o Appropriate SMA & BNC adaptors (purchased from Action Electronics: 714-
547-5169)
SMA Male to BNC Female adaptor (Pan Pacific Part #RFA-
8382)
SMA Male to BNC Male adaptor (Pan Pacific Part #RFA-
8384)
SMA Male to SMA Female right angle adaptor (Pan Pacific
Part #RFA-2599)
Male BNC to Male BNC RG59 Cable (3 - 3 feet long)
Software:
Most of the software will be provided in the CD. Look for the .tar files.
- Red Hat 9.0
- GNU core file could be download here
(http://www.gnu.org/software/gnuradio/)
- driver for PCI-DAS4020/12 (http://www.gnu.org/software/gnuradio/)
- Fourier Transform Sofware version 2.1.5 the 3.0.x is not compatible!
o This could be download here (http://www.fftw.org)
- optional QT software from trolltech
- xine from (http://xinehq.de/)
o This software has NOT been installed on the system yet!
Hardware Installation:
1. Install PCI-DAS4020/12 card
o First, solder the two pads SG4 together to create input of 50 ohms on
channel 3
any solder tools will do the job
before after
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Digital TV Tuner User Manual - 5
o install the card on any PCI slot (last slot is preferred)
2. Connect Hardware Components
from
antenna to
tuner
control
lines
vcc,gnd,etc..
Microtune Eval-Board
NEC Eval-Board
vcc2
Parallel
Port
IF OUT to Channel 3
of A/D card
IF output to NEC Board to IF AMP IN on NEC board
Figure 1. The connections between the NEC and Microtune evaluation boards
Figure 1 showed the connections required between the Microtune tuner and NEC
evaluation-board. Follow the connection steps below.
1. Connect the SMA Male to SMA Female right angle adaptor to the IF OUT on the
NEC board
2. Connect SMA Male to BNC Female adaptor to the SMA Male to SMA Female
right angle adaptor connected in the last step
3. Connect SMA Male to BNC Female adaptor to the IF AMP IN on the NEC board.
4. Use the cable and connect the IF OUT on the MICROTUNE board to the IF AMP
IN on the NEC board.
5. Use another cable and connect the IF OUT on the NEC BOARD to CHANNEL 3
of the A/D card installed on the PC.
6. Connect the output from the antenna to the Tuner (antenna needs to be purchased)
7. Connect all VCCs and GNDs wires to their appropriate destinations on the power
supply is here (this will be up to the future researcher)
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Digital TV Tuner User Manual - 6
It should look something like this without the power supply:
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Digital TV Tuner User Manual - 7
Here are some more pictures of the setup to show each part in more details:
Software Installation:
All of these installations are done under “root”. Normal user could also install
certain package of software; however, you must change the permission!
To unzip or untar files you “gunzip file_name” and “tar xf file_name” command
1. Install Red Hat 9.0
o choose “complete installation” or partial installation with the kernel
included
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Digital TV Tuner User Manual - 8
o follow direction on Red Hat installation guide
o recommended 10Gig of space
2. Install the Measurement Computing PCI-DAS4020/12 card
o download the driver from website
o read the README file for installation instruction or these instructions
( recommend installing under root )
# ./configure (./ is not necessary if the path is modified )
# make
# make install
# make check ( optional )
# depmod
# make devs
For normal user
$ ./configure (./ is not necessary if the path is modified )
$ make
$ make check
$ make install
o then add the following line to your /etc/modules.conf file
alias char-major-127 mc4020
3. Install Discrete Fourier transform (DFT)
o download software from website
o read the INSTALL file for directions or simply use these commands
# ./configure --enable-float
you might need to type sh ./configure if you are using
‘csh’ on and older version of System V
this will install the single precision, do not install the
double precision or both otherwise you will have to do
this again!
# make
this will compile the package for you
# make check
make check will check for error in the installation
process ensuring a smooth installation of DFT. this is
an optional feature!
# make install
installing the program, documentations, and any data
files
o after installation is complete type
# make clean
this is clear away all the binary files, objects and other
files created during the configure and make process
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Digital TV Tuner User Manual - 9
4. Installing QT
o if you are running on Red Hat 9.0 you do not need to re-install QT but
you need to create 2 files .profile and .login in your local directory for
GNU RADIO to recognize qt when it’s configuring
In .profile (if your shell is bash, ksh, zsh or sh), add
the following lines:
QTDIR=/usr/local/qt
PATH=$QTDIR/bin:$PATH
MANPATH=$QTDIR/doc/man:$MANPATH
LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
export QTDIR PATH MANPATH LD_LIBRARY_PATH
In .login (in case your shell is csh or tcsh), add the
following lines:
setenv QTDIR /usr/local/qt
setenv PATH $QTDIR/bin:$PATH
setenv MANPATH $QTDIR/doc/man:$MANPATH
setenv LD_LIBRARY_PATH $QTDIR/lib:$LD_LIBRARY_PATH
then log out and re-login and everything will be nice and
clean!
5. Installing GNU RADIO
GNU radio does not require that you install it with QT; however, you should
install it with QT anyway. All of these instructions in details could be found in
the README file included in the GNU software.
1. when you are in the folder with the source codes (the initial folder after untar)
2. type “./configure” (this executable will configure the systems to create all the
make files and check for compatibility issues and installation of required
software)
3. type “make” to compile
4. type “make check” to run self-test
5. type “make install” to install everything (this will take between 5-15 minutes)
6. type “make clean” to clean all files that the configure process created
When everything is installed successfully the program will have a file called
“THANKS”
All the examples to be tested are in the examples folder at
~/gnu-radio-0.8/src/gnu/examples
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Digital TV Tuner User Manual - 10
“Testing the Tuner” - Commands:
These commands are available to use; however, there are more commands once
everything is completed. These commands are the commands in the examples folder.
HDTV:
./givelp1 ./set_agc value
this is will set the AGC (automatic control with a value)
example ./givelp1 ./set_agc 300 will set it to 300
./givelp1 ./microtune channel
(example ./microtune 207 FM) this gives the command to the microtune module to tune
to channel 207 FM
./adc3_fftavg
this command gives you the real time FFT and look something like this:
once you see the signals you could click on “quit” and continue on
mc4020-read-adc -b --count=100000000 --ch3 --1v > /path-to-fast-disk/test.dat
this command will sample the FM channel that was sent by the microtune command.
path-to-fast-disk -> you need to specify a disk space that is able to handle 40mb/sec
transfers.
mc4020-read-adc –b -> this will sample analog to digital –b is for binary
--count=100000000 -> this specify the number of samples to read
--ch3 --1v -> sent into to channel 3 with sampling at +/- 1V
test.dat -> just a file with .dat
cd ../atsc
go back to the atsc driver folder
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Digital TV Tuner User Manual - 11
./run_rx -L -s 20 -f /path-to-fast-disk/test.dat -o test.ts
this will convert the .dat file to .ts which is an MPEG transport stream
xine test.ts
xine will display the transport stream. Xine is not yet installed on this system so please
install it from the file on the disk or could be obtain at the website given above.
FM: the project was mainly working with HDTV most of these commands have not been
completely working due to lack of equipments arriving on time.
./givelp1 ./set_agc value
this is will set the AGC (automatic control with a value)
example ./givelp1 ./set_agc 300 will set it to 300
./givelp1 ./microtune channel
(example ./microtune 102.7 FM) this gives the command to the microtune module to tune
to channel 102.7 FM
./adc3_fftavg
this will produce another screen look like the top screen for HDTV and just click on
“quit” and continue on after you seen a reasonable wave.
./fm_demod1
this is decode it to audio
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