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DISH SETUP: Single sat, Multi-Sat & Motorised
Dying LNB?
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<blockquote data-quote="Terryl" data-source="post: 1031872" data-attributes="member: 369937"><p>Not enough DC current is one part of the possible problem, your LNB is using about 120 mA, but with your problem it could be that the LNB has gone bad as you suspect.</p><p></p><p>However it needs to switch to 11 to 14 volts DC for vertical transponders and the 22 Khz switching for that band needs to be set right, (ether on or off I don't see what does what in the tech spec's, maybe someone who has one can fill this part in) also the coax used should be rated out to 2.5 or 3 GHz(regular TV signal coax wont handle it) or you may be missing the high end transponders due to too much cable loss.</p><p></p><p>Here is a look at the band spec, it shows that the high frequency mode uses a higher band for the transponders LO output.</p><p><strong>Technical specifications</strong></p><p>Low band input frequency range 10.7 GHz ~ 11.7 GHz</p><p>Low band output frequency range 950 MHz ~ 1950 MHz</p><p>Low band LO frequency 9.75 GHz </p><p></p><p>High band input frequency range 11.7 GHz ~ 12.75 GHz</p><p><u><strong>High band output frequency range 1100 ~ 2150 MHz</strong></u></p><p>High band LO frequency 10.6 GHz </p><p></p><p>So if your coax cant handle the job at the high end then that could be the problem, look on the jacket of the coax, it may be marked as to the coax frequency response.</p><p></p><p>This also could be a corroded cable connector, or water in the coax, that would/could cause a drop out at the high end.</p><p></p><p>Also check your settings for that satellite, they should be, LO = 10.6 GHz, and the 22 KHz switching should be on? or off? (someone can fill this in) Diseqc switching should be 1.0, and the Diseqc switch port should be 1.</p></blockquote><p></p>
[QUOTE="Terryl, post: 1031872, member: 369937"] Not enough DC current is one part of the possible problem, your LNB is using about 120 mA, but with your problem it could be that the LNB has gone bad as you suspect. However it needs to switch to 11 to 14 volts DC for vertical transponders and the 22 Khz switching for that band needs to be set right, (ether on or off I don't see what does what in the tech spec's, maybe someone who has one can fill this part in) also the coax used should be rated out to 2.5 or 3 GHz(regular TV signal coax wont handle it) or you may be missing the high end transponders due to too much cable loss. Here is a look at the band spec, it shows that the high frequency mode uses a higher band for the transponders LO output. [B]Technical specifications[/B] Low band input frequency range 10.7 GHz ~ 11.7 GHz Low band output frequency range 950 MHz ~ 1950 MHz Low band LO frequency 9.75 GHz High band input frequency range 11.7 GHz ~ 12.75 GHz [U][B]High band output frequency range 1100 ~ 2150 MHz[/B][/U] High band LO frequency 10.6 GHz So if your coax cant handle the job at the high end then that could be the problem, look on the jacket of the coax, it may be marked as to the coax frequency response. This also could be a corroded cable connector, or water in the coax, that would/could cause a drop out at the high end. Also check your settings for that satellite, they should be, LO = 10.6 GHz, and the 22 KHz switching should be on? or off? (someone can fill this in) Diseqc switching should be 1.0, and the Diseqc switch port should be 1. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Dying LNB?
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