Setup of the Traxis DBS-3500 MPEG-2
Satellite Receiver
C-Band as well as C/Ku-Band
Operation
| Setup of C-band or C and Ku-band
systems all start with the initial C-band configuration, so please
continue reading if you fall into those categories. Those equipped
with Ku-band only systems should read the appropriate paragraphs near the
end of this section.. If you have a portable TV set or monitor which can be "borrowed" for setup of the DBS-3500 receiver, it will make things less confusing. Do some homework NOW and read the manufacturer's manual supplied with the DBS-3500 receiver. Familiarizing yourself with the operation is much quicker if you have some background in general theory of operation. Then play with it to find Hidden functions that may not otherwise be apparent to the casual user. Connect the Channel 3/4 VHF modulator output (bottom F connection labeled "TV OUT") from the satellite receiver to the TV set. Or to a monitor with video and audio RCA cables. Whatever it takes to have two views of what you are trying to accomplish; the output of your existing satellite receiver, and the output of the DBS-3500 receiver MPEG-2 receiver, side by side. Your existing receiver continues to power and control your system, so provisions should be made to keep it running. Don't use either receiver's TV antenna circuits as an ON/OFF switch, because both must be left on for the MPEG-2 receiver to function properly. Connect a short jumper cable from the Satellite Loop-through Output (labeled "IF OUT") of the DBS-3500 receiver (bottom left coax port) to the C-band input of your receiver. The previous C-band satellite connection on the other receiver should be moved to the top left (satellite input) connection (labeled "LNB IN") on the DBS-3500 receiver. Power ON the DBS-3500 receiver and check for the On-Screen display. (If it does not turn on, move the rear panel power switch to its other position and try again). If you are using C and Ku-band, test the
system first on C-band as suggested above. If it works, you then
need to connect HFS-2 power dividers and appropriate DiSEqC switch to your
system to allow proper switching abilities. Make certain that any
power divider will pass frequencies of at least 950 to 2100 MHz, and that
the right side output passes power (indicated by a notch or an arrow on
that output leg) and that the left side output is DC blocked (does not
pass DC power). IF you use a power divider that passes power on both
ports (sometimes indicated by model number HFS-2P), you will have
problems, unless a VOLTAGE BLOCKING COUPLER is inserted in line to block
DC voltage from getting to your MPEG-2 receiver. An HFS-2 power
divider that indicates power passing on the right side output and
connected that way should not need a VBC device unless happens to be
defective. You CAN put a Voltage Blocking Coupler in front of the
MPEG-2 receiver's satellite input to further isolate DC voltages, but make
certain that any VBC device is rated to pass frequencies up to 2100
MHz. DiSEqC logic will not work properly unless strict attention is
paid to isolating voltages in this manner. If we have preprogrammed this receiver, press LIST on the upper right side of remote control and select the satellite you wish to start with. Press MENU button on remote control. Cursor left past the titles CHANNEL, TOOLS, SYSTEM SETUP, and INSTALLATION. If you wish to set the Clock and other settings, select SYSTEM SETUP and store desired information. Exit out and go to INSTALLATION section, selecting ANTENNA SETUP. For C-band satellites, the screen should list the desired satellite (toggle left or right if it is not). LNB type should be listed as STANDARD. With the LNB TYPE/STANDARD highlighted, press the OK button to confirm the local oscillator frequency, which should be 5150 for C-band satellites, or 10750 for standard U.S. Ku-band satellite. If needed, set appropriate frequency, press EXIT, and go down the list. 22 KHz should be OFF. DiSEqC should be DiSEqC 1.0. DiSEqC Switch is normally set by Global Communications as 1/2 for C-band and 2/2 for Ku-band, assuming you are using a 2-input DiSEqC switch. Those with four input DiSEqC Switches: C band should be listed as 1/4, Ku-band as 2/4, and if you have a third antenna--it should be configured as 3/4, and a fourth as 4/4 in the DiSEqC section of ANTENNA SETUP. In this initial setup, with no switch in line,
all connections will default as #1 because there is no switch to select
otherwise. Positioner should not be selected, as it is for use
with a DiSEqC motor assembly that can be connected to small Ku-band or DBS
antennas. Polarity should be normally set to H/V. Confirm
everything and press EXIT. You will be prompted to press OK if you
wish to save these settings. Do so. |
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Several satellites have only digital signals on them, and may not be programmed into your analog receiver. There really is not an accepted convention for even/odd numbering with analog receivers east of the end of the domestic satellite arc. The best way to locate digital only satellites is to first call up a nearby satellite, and select the polarity that is intended to first be scanned on the new satellite. For example, to find SatMex 5 at 116.8 West, first go to GALAXY 23 at 121 West and call up channel 21 (JEWELRY TV) This is on HORIZONTAL polarity. First, configure the TRAXIS DBS-3500 receiver as if you are already tuned to SatMex 5 at 116.8 West / C-band. After selecting it and confirming all parameters, press OK to store, and EXIT out of ANTENNA SETUP menu. Go to INSTALLATION menu, and select TP SCAN menu and press OK again. Study a recent channel chart for this satellite
and compare information with that in your DBS-3500 receiver's transponder
memory. Go through all available satellites and check out reception from prestored channel listings. Do additional scanning as needed to amend lists, and edit when completed. |
| Satellites in the eastern part of
the domestic U.S. arc may not be programmed into your receiver, and it is
possible that your system is not physically configured (or in the case of
an 18 inch motor drive, not physically capable) of turning to all
satellites to the east. If you are not technically proficient at
determining your situation, contact a professional satellite installer to
determine this and if possible, reconfigure or otherwise modify your
system for reception of these satellites. Once you have these
abilities, a combination of an In-Line satellite tuning meter and careful
operation of your TRAXIS DBS-3500 receiver can find their locations.
Assuming you have already located and programmed the AMC-6 satellite at 72
West, you are ready to go. Once completed with C-band testing, it is time to go to Ku-band. Check the westernmost Ku-band satellite with
active programming, using the MPEG-2 list at www.global-cm.net/MPEGlistKuBandUS.html
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| Ku-Band Only
Reception Most popular channels are found on two Ku-band satellites: Galaxy 25 (formerly T-5 or Telstar 5) at 97 West and Galaxy 10-R at 123 West. The rest of the signals are scattered in various locations across the sky, either requiring dedicated separate antennas for ones that you would like immediate access to, or a motorization system to theoretically access everything. The latter option is the most complicated, and requires a mechanically accurate installation that can track the satellite arc perfectly. Many if not most so-called satellite installers simply are unfamiliar with and/or not equipped to do such an installation properly or efficiently. Unless they have a spectrum analyzer and are quite familiar with the patterns displayed by each satellite, you could be wasting your money paying an hourly rate to someone claiming to be a "professional" satellite installer. An in-line satellite tuning meter (we have them available starting at $25.00) is the next best thing, and can be quite helpful at getting you "close" to the satellite arc. The difficulty sometimes lies with the lack of a set of proper coordinates (and maybe proper tools such as an angle finder) to determine the precise elevation angle that your dish is set at. If you do have this angle information and a good measurement tool (also known as an Inclinometer...which we have available in 2 models under $20.00) one can usually get within 2 or 3 satellites of the desired location. Familiarity with the metering functions of your MPEG-2 Free-To-Air receiver will allow you to determine exactly which satellite you are on, based upon the lighting up of pre-stored frequencies in the Transponder Scan mode, and watching the internal meters. Use of a spectrum analyzer or in-line tuning meter will get you close to where you need to be, and the receiver can get you the rest of the way. Blind luck sometimes helps, but we would rather trust a new feature commonly known in the MPEG-2 industry as "Blind Scan" and called "AUTO SCAN" by the TRAXIS people. This is one of the tools available for the do-it-yourselfer to initially locate and eventually identify unknown signals. As with many things, the more money you have to spend on "tools", the quicker you can get the job done. Those not fortunate enough to have a Spectrum Analyzer or In-Line Tuning Meter will find that it takes much longer to find things, and such a situation increases the odds of failure at obtaining all of the desired signals out there. Some advice for those about to enter this new world: If you are not prepared to learn how to do-it-yourself, and do not have the money to spend or a competent available technician, it is best to stay away from motorized systems. You would be much happier with the constant results from multiple dishes perfectly aimed, and joined with a switching system into your TRAXIS DBS-3500 receiver. Basic operation starts with finding just ONE satellite. Get the coordinates for elevation and azimuth, paying particular attention to factory provided instructions provided by the antenna manufacturer on how to measure elevation angles. Offset (egg shaped) dishes do NOT work the same as the old familiar round prime-focus dishes, and typically point between 21 and 25 degrees LOWER than the actual incoming signal. Calibrated gauges on antenna mounts cannot be trusted unless you have installed the mounting pipe perfectly vertical, as checked with a carpenter's level. The quickest way to find a satellite is to carefully install according to the instructions, and in the case of Ku-band determine the Skew or Polarity setting on the LNBF for that particular satellite, in your location. This is the clockwise or counter-clockwise orientation of the LNBF in relation to its "normal" setting when viewing a satellite that is perfectly due South. In those cases, the F-type or signal/power connector is pointing straight down (at the 6:00 position). If the satellite is west of you, the rotation is counter-clockwise from 6:00. If the satellite is to your east, adjustments are clockwise from 6:00. Check the GLOBAL COMMUNICATIONS website for pointing angle and skew angle settings for more popular satellites. If you cannot find this information for the satellite in question, Email us with desired satellite name and your location, and we can make a calculation. Next, set the elevation to the nearest degree predicted. The direction should be close to that listed (we always provide True headings, not Magnetic...people that use compasses should know their local correction factor, because it is different for every location). We assume that you are using a normal standard Ku-band LNBF such as the PANSAT PF-7600 or XTREME II. Configure the DBS-3500 receiver for the satellite you are wanting to receive. Select INSTALLATION mode, and enter OK with Remote. Press 0000 when asked for a Password. Select SATELLITE NAME with cursor and enter OK with Remote Control In the case of Galaxy 25 and G10, make sure that you find the Ku-band side of these satellites, and that the LNB TYPE is listed as STANDARD. LNB LO-FREQ should be 10750. Other features should be OFF. Go down to at least the 22 KHz entry, leaving it in the OFF position, and press OK with Remote Control. EXIT out and go to TP SCAN. Confirm you are still on the same satellite (Gxy 25 / Ku-band or Galaxy 10-R / Ku-Band). Select one of the prestored TPs (transponders) and see if the SIGNAL and QUALITY meters register a strong signal. Adjust dish left/right and up/down for strongest levels. Go down to the SCAN prompt and press OK with the Remote Control. Let it scan and store, and EXIT out of the menus. Check reception as well as the names of the channels added to the Channel List. If you are happy with the results, go back to TP SCAN and select other TPs one by one and scan them. IF you have a voltage switched (13 and 18 volt) Ku-band LNBF that is properly aligned, it may be quicker to do a SATELLITE SCAN instead, and let all channels scan. EXIT and allow information to be stored. Check reception and channels on the Channel List. If you would like to move the position, delete entry, or change the name of any channel, it can be done using the Channel List. Other satellites can be manually found in the same way, and added to your "catch" of available signals. Selection of multiple satellites can be done using either a 2-input or a 4-input DiSEqC Switch, wiring each separate antenna into the appropriate input slot with a coaxial cable, and then programming the TRAXIS DBS-3500 receiver by satellite so that it is properly configured for the correct DiSEqC position for each satellite. Motorized systems should first read the installation manuals that were provided by the manufacturer of your DiSEqC or other positioner motor. Next you should thoroughly read the DBS-3500 manual on the subject, especially for the configuration of various formats. Next step is best done with a Spectrum Analyzer or an In-Line Satellite Tuning Meter. Confirm that the entire system tracks the satellite arc. Put in a "HOME" position (usually GALAXY 25 Ku-band satellite) and find all other satellites in a chronological order from East to West or vice versa. Program all positions. MIKE KOHL GLOBAL COMMUNICATIONS S-9141 STATE HIGHWAY 23 PLAIN, WISCONSIN 53577 Business Hours 9 AM to 6PM CENTRAL TIME Monday through Friday Telephone (608) 546-2523 Fax (608) 546-2157 E-Mail: globalcm@mhtc.net WorldWide Web: http://www.global-cm.net/ |