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DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Another Logistics nightmare solved :- Hughes KA lnb
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<blockquote data-quote="Vipersan" data-source="post: 852267" data-attributes="member: 325666"><p>Ok ..</p><p>Done some more digging and it appears that earlier versions of Directv lnbs with 4 outputs cover that hard to get 18 ghz part of the spectrum ..but not at all straightforward as the IF output is designed specifically for directv stbs ..</p><p>IF output around 250-750MHz </p><p>No use at all for conventional receivers..</p><p>So an upconvertor is needed ..</p><p>..and yes these are made as a lot of Americans want to use their own set top boxes.</p><p>The upconvertor is called SUP-2400 B-Band device.</p><p>..and no that isn't all </p><p></p><p>apparently 22khz or band switching isn't enough ..</p><p>the 22khz tone has to be active ..but a non standard command is sent by the directv box to switch to lower ka band ..</p><p>There apparently is a mod to bypass this and make the lnb permanently active KA wise..</p><p>It may just be do-able but a fair bit of work ..getting the lnb , converter ..and then modding.</p><p>Anyone have more info on this ..</p><p>Perhaps american readers of the forum ..</p><p>I believe this was the method first used in Ireland to see preliminary testing of Saorsat with imported lnbs from the US ..before inverto filled that void.</p><p>Curiouser and Curiouser ..</p><p>rgds</p><p>VS</p><p>more extracts related to this idea ..</p><p>>>The protocol is simple for a DVBS2 STB with the B-Band adapter for all frequencies to fall between 950 and 2150MHz IF:</p><p>22KHz Off= KU circular 101w & KA 99w</p><p>22KHz On = KU 110/119 & KA 103w</p><p>>>>>></p><p></p><p>SL3</p><p></p><p>Parameter</p><p></p><p>Ku, 101° </p><p>Ka, 99° / 103°</p><p></p><p></p><p></p><p>Input Frequency</p><p></p><p>Ku, 101° :</p><p>101°: 12.2 ~ 12.7 GHz</p><p>Ka, 99°/103°:</p><p>Ka-Lo: 18.3 ~ 18.8 GHz</p><p>Ka-Hi: 19.7 ~ 20.2 GHz</p><p></p><p></p><p></p><p>Output Frequency</p><p></p><p>Ku, 101° :</p><p>101°: 950 ~ 1450 MHz</p><p>Ka, 99°/103°:</p><p>Ka-Lo: 18.3 ~ 18.8 GHz</p><p>Ka-Hi: 19.7 ~ 20.2 GHz</p><p></p><p></p><p></p><p>Polarization</p><p></p><p>RHCP / LHCP</p><p></p><p>>>>></p><p>US Ka: 18.3GHz – 18.8GHz and 19.7GHz – 20.2GHz</p><p>DrTV SL3 (for 99WKa, 101WKu, 103WKa)</p><p>13V = Right 18V = Left ---> Use 18V for LHCP</p><p>The Ka LNBs convert the downlink signal to a low frequency range of 250 MHz to 750Mhz and a high frequency range of 1650 MHz to 2150 MHZ.</p><p></p><p>99, 101 and 103 degrees is 3 in 1 LNB, so NO KA on centre LNB as 101 satellite is not KA.</p><p></p><p>103 and 99 are KA (in the USA)</p><p></p><p>18V no tone for Ka band 99 WEST(right hole), (Ku band 101 WEST LHCP 101 West is in centre\not used )</p><p></p><p>18V 22Khz for Ka band 103 WEST (103 West is to the left of hole in centre), Ku band 110/119 WEST LHCP (not fitted) </p><p></p><p>Ka Lo: 250-750MHz (left or right hole depending on 22Khz tone)</p><p>Ku: 950-1450MHz (centre hole)</p><p>Ka Hi: 1660-2150MHz (left or right hole depending on 22Khz tone)</p><p></p><p>The current Ku Band downlink signals are from 12.2 GHz to 12.7. LO is 11.25GHz</p><p>13V=RHCP and 18V = LHCP (No use in Ireland)</p><p></p><p>The new Ka Band downlink frequency is from 18.3GHz – 18.8GHz and 19.7GHz – 20.2GHz</p><p>(LO 18.050 approx)</p><p></p><p>So it will appear 1.66-2.15Ghz which relates to 17.7-20.2Ghz with a voltage of 18V applied</p><p></p><p>KA Low appears from 250-750Mhz.(18.3GHz – 18.8GHz) To see these you need a B band Converter. I have these. They need to be modified to be switched on all the time. I have done this and I have modified two, and I have more that can be modified if needed. The B band upconverter upconverts this so a normal European receiver will work. Then no tone is needed. The 22Khz tone selects which hole on the LNB (which position in the Sky) is used. This depends on where your LNB is mounted.</p><p></p><p>18V Selects LHCP, while 13V selects RHCP (This is the opposite to the European LNB )</p><p></p><p>.........................................................................................</p><p></p><p>all extra info copied from Satellite guys US forum ..</p><p>hope no one has a problem with this.</p></blockquote><p></p>
[QUOTE="Vipersan, post: 852267, member: 325666"] Ok .. Done some more digging and it appears that earlier versions of Directv lnbs with 4 outputs cover that hard to get 18 ghz part of the spectrum ..but not at all straightforward as the IF output is designed specifically for directv stbs .. IF output around 250-750MHz No use at all for conventional receivers.. So an upconvertor is needed .. ..and yes these are made as a lot of Americans want to use their own set top boxes. The upconvertor is called SUP-2400 B-Band device. ..and no that isn't all apparently 22khz or band switching isn't enough .. the 22khz tone has to be active ..but a non standard command is sent by the directv box to switch to lower ka band .. There apparently is a mod to bypass this and make the lnb permanently active KA wise.. It may just be do-able but a fair bit of work ..getting the lnb , converter ..and then modding. Anyone have more info on this .. Perhaps american readers of the forum .. I believe this was the method first used in Ireland to see preliminary testing of Saorsat with imported lnbs from the US ..before inverto filled that void. Curiouser and Curiouser .. rgds VS more extracts related to this idea .. >>The protocol is simple for a DVBS2 STB with the B-Band adapter for all frequencies to fall between 950 and 2150MHz IF: 22KHz Off= KU circular 101w & KA 99w 22KHz On = KU 110/119 & KA 103w >>>>> SL3 Parameter Ku, 101° Ka, 99° / 103° Input Frequency Ku, 101° : 101°: 12.2 ~ 12.7 GHz Ka, 99°/103°: Ka-Lo: 18.3 ~ 18.8 GHz Ka-Hi: 19.7 ~ 20.2 GHz Output Frequency Ku, 101° : 101°: 950 ~ 1450 MHz Ka, 99°/103°: Ka-Lo: 18.3 ~ 18.8 GHz Ka-Hi: 19.7 ~ 20.2 GHz Polarization RHCP / LHCP >>>> US Ka: 18.3GHz – 18.8GHz and 19.7GHz – 20.2GHz DrTV SL3 (for 99WKa, 101WKu, 103WKa) 13V = Right 18V = Left ---> Use 18V for LHCP The Ka LNBs convert the downlink signal to a low frequency range of 250 MHz to 750Mhz and a high frequency range of 1650 MHz to 2150 MHZ. 99, 101 and 103 degrees is 3 in 1 LNB, so NO KA on centre LNB as 101 satellite is not KA. 103 and 99 are KA (in the USA) 18V no tone for Ka band 99 WEST(right hole), (Ku band 101 WEST LHCP 101 West is in centre\not used ) 18V 22Khz for Ka band 103 WEST (103 West is to the left of hole in centre), Ku band 110/119 WEST LHCP (not fitted) Ka Lo: 250-750MHz (left or right hole depending on 22Khz tone) Ku: 950-1450MHz (centre hole) Ka Hi: 1660-2150MHz (left or right hole depending on 22Khz tone) The current Ku Band downlink signals are from 12.2 GHz to 12.7. LO is 11.25GHz 13V=RHCP and 18V = LHCP (No use in Ireland) The new Ka Band downlink frequency is from 18.3GHz – 18.8GHz and 19.7GHz – 20.2GHz (LO 18.050 approx) So it will appear 1.66-2.15Ghz which relates to 17.7-20.2Ghz with a voltage of 18V applied KA Low appears from 250-750Mhz.(18.3GHz – 18.8GHz) To see these you need a B band Converter. I have these. They need to be modified to be switched on all the time. I have done this and I have modified two, and I have more that can be modified if needed. The B band upconverter upconverts this so a normal European receiver will work. Then no tone is needed. The 22Khz tone selects which hole on the LNB (which position in the Sky) is used. This depends on where your LNB is mounted. 18V Selects LHCP, while 13V selects RHCP (This is the opposite to the European LNB ) ......................................................................................... all extra info copied from Satellite guys US forum .. hope no one has a problem with this. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Another Logistics nightmare solved :- Hughes KA lnb
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