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Car Forum / Driving, Maintenance, Tuning / RVs / May 2008VSAT down due to Sun?
I'm looking at going VSAT for my internet, we're going full time liveaboard RV. Someone told me that for 2+ weeks a year the VSAT is unable to receive because the sun liones up behind the satellite and overloads the link with noise. How long is the blackout? Will the sun being focused on my dish ruin anything? Thanks! I can't really speak for v-sat but as chief engineer for a radio station for 40+ years the outage has been sporadic and never for more than 30 minutes at a time and then only in daylight hours. Dave > I'm looking at going VSAT for my internet, we're going full time liveaboard > RV. [quoted text clipped - 7 lines] > > Thanks! >I can't really speak for v-sat but as chief engineer for a radio >station for 40+ years the outage has been sporadic and never for more [quoted text clipped - 12 lines] >> >> Thanks! It's only in the Spring and Fall for about 2 weeks each for 30 minutes in the late afternoon. This is for the East Coast. Further west will change the time of day slightly, but it will be in the mid to late afternoon.  SignatureFrank Tabor Tempus Fugit >>I can't really speak for v-sat but as chief engineer for a radio >>station for 40+ years the outage has been sporadic and never for more [quoted text clipped - 19 lines] > change the time of day slightly, but it will be in the mid to late > afternoon. Can I use a sunshade that will block the sun from my dish and let the radio signals pass? >>>I can't really speak for v-sat but as chief engineer for a radio >>>station for 40+ years the outage has been sporadic and never for more [quoted text clipped - 22 lines] >Can I use a sunshade that will block the sun from my dish and let the radio >signals pass? No, the sun is behind the satellite itself. The outage only lasts 30 minutes for 12-14 days. Go take a walk, get some exercise. The outage isn't that long or that frequent. SignatureFrank Tabor Tempus Fugit >It's only in the Spring and Fall for about 2 weeks each for 30 minutes >in the late afternoon. This is for the East Coast. Further west will >change the time of day slightly, but it will be in the mid to late >afternoon. As usual Frank doesn't know what he is talking about. Check Don Bradner's posting for the correct answer. SignatureR.J.(Bob) Evans (return address needs alteration to work) http://travellingwithgeorge.blogspot.com/ >>It's only in the Spring and Fall for about 2 weeks each for 30 minutes >>in the late afternoon. This is for the East Coast. Further west will [quoted text clipped - 3 lines] >As usual Frank doesn't know what he is talking about. Check Don >Bradner's posting for the correct answer. As usual, you're a f.cking idiot. On the east coast the times are later in the day because the sats are further west to us than they are to east coasters. f.cking idiot. Stick to something you know about, like blowing Mexicans. Even better, dickhead, Google on satellite sun fade and take a look at the different satellites and the times and dates. You will find that you just showed what a f.cking idiot you really are. Oh, in case I forgot. You're a f.cking idiot. SignatureFrank Tabor Tempus Fugit >>>It's only in the Spring and Fall for about 2 weeks each for 30 minutes >>>in the late afternoon. This is for the East Coast. Further west will [quoted text clipped - 7 lines] >later in the day because the sats are further west to us than they are >to east coasters. The poster asked if he could use a shade to keep the heating off of the dish. YES. And Don's analysis is dead on. >f.cking idiot. Stick to something you know about, like blowing >Mexicans. [quoted text clipped - 4 lines] > >Oh, in case I forgot. You're a f.cking idiot. Frank, you are too f.cking stupid to breathe our air. Jesus, you are dumb! --- $$$$$$$$$$$ Yours truly, Johnny Dollar! >>>>It's only in the Spring and Fall for about 2 weeks each for 30 minutes >>>>in the late afternoon. This is for the East Coast. Further west will [quoted text clipped - 31 lines] >$$$$$$$$$$$ >Yours truly, Johnny Dollar! You misspelled Dickhead again. SignatureFrank Tabor Tempus Fugit >>>Even better, dickhead, Google on satellite sun fade and take a look at >>>the different satellites and the times and dates. You will find that [quoted text clipped - 11 lines] > >You misspelled Dickhead again. You're dumber than I thought. I didn't write "dickhead". Learn to f.cking read! >>>Yours truly, Johnny Dollar! >> >>You misspelled Dickhead again. > >You're dumber than I thought. I didn't write "dickhead". Learn to >f.cking read! Yes you did, in your sig. Johnny Dickhead. See, I spelled it correctly. SignatureFrank Tabor Tempus Fugit >Even better, dickhead, Google on satellite sun fade and take a look at >the different satellites and the times and dates. You will find that >you just showed what a f.cking idiot you really are. BTDT bozo. 2:40 for Boston - you got somewhere further east in mind? Where I come from that's not considered "late in the afternoon" - your words, not mine. >Oh, in case I forgot. You're a f.cking idiot. Sez you. Considering the source I'll take that as a compliment. For the sentient world, sun fade happens around noon and its not that big a deal. In Frank's world who knows? Maybe it happens at midnight. SignatureR.J.(Bob) Evans (return address needs alteration to work) http://travellingwithgeorge.blogspot.com/ >>Even better, dickhead, Google on satellite sun fade and take a look at >>the different satellites and the times and dates. You will find that [quoted text clipped - 10 lines] >big a deal. In Frank's world who knows? Maybe it happens at >midnight. I see you didn't bother to do any research, did you? The time depends on the satellite and your location. Not everyone is on the same satellite, nor the same location. Try 89 West. Try 127, try 110, try 119. You will see that they run towards 4 o'clock in the afternoon and at their peak can be 30 minutes of fade. You're still a dickhead, and a Will Sill wannabe. SignatureFrank Tabor Tempus Fugit >>For the sentient world, sun fade happens around noon and its not that >>big a deal. In Frank's world who knows? Maybe it happens at [quoted text clipped - 5 lines] >119. You will see that they run towards 4 o'clock in the afternoon >and at their peak can be 30 minutes of fade. Frank, you are reaching. The average for sun outage is always noon, by definition. Those east of a satellite will be afternoon, those west will be morning. In the most extreme situation, which is someone in Miami on 127 (a very hard bird to hit from Miami!) will have outages around 4, but everybody else everywhere else, and everybody on any other satellite, will always be earlier than 4. I've run many, many combos of location and satellite, and none have ever even approached 30 minutes. I would love to see one, if you would care to share an actual combination that is longer than 25 minutes. --- Don Bradner www.arcatapet.net '90 Wanderlodge PT40 "Blue Thunder" towing '07 Jeep Liberty >Frank, you are reaching. > >I've run many, many combos of location and satellite, and none have >ever even approached 30 minutes. I would love to see one, if you would >care to share an actual combination that is longer than 25 minutes. >--- Thank you Don but teaching Frank is like teaching a pig to sing: Its damn hard work The pig won't thank you for it Even if you succeed the results won't be pretty. SignatureR.J.(Bob) Evans (return address needs alteration to work) http://travellingwithgeorge.blogspot.com/ >>Frank, you are reaching. >> [quoted text clipped - 8 lines] >The pig won't thank you for it >Even if you succeed the results won't be pretty. Yeah and you still haven't learned anything, because I am correct. See my post to Don. I don't expect Johnny Dickhead or Bobby bl.wj.b to admit they were wrong. SignatureFrank Tabor Tempus Fugit >Yeah and you still haven't learned anything, because I am correct. See >my post to Don. No Frank - what you are is a moron. You confirmed that by trying to argue satellites with Don Bradner. You want to stick to lightweights like myself - when you start taking on the likes of Don you just confirm what a fool you really are. SignatureR.J.(Bob) Evans (return address needs alteration to work) http://travellingwithgeorge.blogspot.com/ >>Yeah and you still haven't learned anything, because I am correct. See >>my post to Don. [quoted text clipped - 3 lines] >like myself - when you start taking on the likes of Don you just >confirm what a fool you really are. What you are is an even bigger moron. See my post about the calculator. Or are you too f.cking stupid to figure out how to work it? I'll give yo a clue, Enter Roanoke, VA. Sat lon is 127, KU band, .7 dish diameter and EDT. You will see that the time begins after 4pm and lasts a maximum of 25 minutse and 35 seconds. http://www.spacecom.com/customer_tools/html/body_sunoutage_calc.htm Predicted Fade | Start | End | Duration | Start | End Date | GMT | GMT | | EDT | EDT mm/dd/yyyy | hh:mm:ss | hh:mm:ss | mm:ss | hh:mm:ss | hh:mm:ss -----------------|----------|----------|----------|----------|--------- 02/28/2008 | 20:53:30 | 21:11:30 | 18:00 | 16:53:30 | 17:11:30 02/29/2008 | 20:52:01 | 21:12:41 | 20:40 | 16:52:01 | 17:12:41 03/01/2008 | 20:50:51 | 21:13:26 | 22:35 | 16:50:51 | 17:13:26 03/02/2008 | 20:49:57 | 21:13:57 | 24:00 | 16:49:57 | 17:13:57 03/03/2008 | 20:49:15 | 21:14:10 | 24:55 | 16:49:15 | 17:14:10 03/04/2008 | 20:48:46 | 21:14:11 | 25:25 | 16:48:46 | 17:14:11 03/05/2008 | 20:48:29 | 21:14:04 | 25:35 | 16:48:29 | 17:14:04 03/06/2008 | 20:48:19 | 21:13:44 | 25:25 | 16:48:19 | 17:13:44 03/07/2008 | 20:48:26 | 21:13:11 | 24:45 | 16:48:26 | 17:13:11 03/08/2008 | 20:48:38 | 21:12:23 | 23:45 | 16:48:38 | 17:12:23 03/09/2008 | 20:49:11 | 21:11:21 | 22:10 | 16:49:11 | 17:11:21 03/10/2008 | 20:50:00 | 21:10:05 | 20:05 | 16:50:00 | 17:10:05 03/11/2008 | 20:51:09 | 21:08:19 | 17:10 | 16:51:09 | 17:08:19 SignatureFrank Tabor Tempus Fugit >>>For the sentient world, sun fade happens around noon and its not that >>>big a deal. In Frank's world who knows? Maybe it happens at [quoted text clipped - 24 lines] >towing '07 Jeep Liberty > I said [Up] To 30 minutes. I have had them on 89 west and whatever I was on before that nearly that long. May take that long to synch back up. Here is 127 for my location. I'm on 127 now. http://www.spacecom.com/customer_tools/html/body_sunoutage_calc.htm ~16:50 EDT start time. Longest duration is 18 1/2 minutes. 89 starts at ~1400. 110 starts around 1535. 119 starts around 1620. SignatureFrank Tabor Tempus Fugit >>>>For the sentient world, sun fade happens around noon and its not that >>>>big a deal. In Frank's world who knows? Maybe it happens at [quoted text clipped - 37 lines] > >110 starts around 1535. 119 starts around 1620. Use Roanoke, VA as the city. You don't have to select a satellite. Just put the latitude of the sat in. SignatureFrank Tabor Tempus Fugit >>>>>For the sentient world, sun fade happens around noon and its not that >>>>>big a deal. In Frank's world who knows? Maybe it happens at [quoted text clipped - 40 lines] >Use Roanoke, VA as the city. You don't have to select a satellite. >Just put the latitude of the sat in. And if you use a .7 dish for the 127 sat it does last 25 1/2 minutes at the max. SignatureFrank Tabor Tempus Fugit >>Use Roanoke, VA as the city. You don't have to select a satellite. >>Just put the latitude of the sat in. > >And if you use a .7 dish for the 127 sat it does last 25 1/2 minutes >at the max. I'll grant that you came real close to a "25 minutes or more" but you missed by not being precise. You used .7 for the dish, and our actual .74 meter dishes are 12% larger in surface. Go back to the table and use the right number, and you will see that it takes the highest number down 1:15 to 24:20. You can see how hard it is to find something even close, and most will be so far less than 30 minutes as to make the number unrealistic. --- Don Bradner www.arcatapet.net '90 Wanderlodge PT40 "Blue Thunder" towing '07 Jeep Liberty > I'm looking at going VSAT for my internet, we're going full time > liveaboard RV. [quoted text clipped - 7 lines] > > Thanks! Bob, we are full time and I have been using Starband for my internet for the last 3 to 4 years. You will have some trouble twice a year as it lines up with you, but as noted it is usually for a short period of time as it lines right up with your dish. I honestly have not even noticed it this year or last, as I must not have been on it at the time. Dave W. >I'm looking at going VSAT for my internet, we're going full time liveaboard >RV. > >Someone told me that for 2+ weeks a year the VSAT is unable to receive >because the sun liones up behind the satellite and overloads the link with >noise. It is even less of a problem than the others have suggested. Never as long as 30 minutes, and in some cases won't even take you down at all. Here's an example table for one specific satellite (G28/89W) from one specific location (Phoenix, AZ) for the next occurrence: Outage | Duration| Start | End Date | | MST | MST ---------------------|-----------|------------|------------ 10/02/2008 | 02:05 | 10:31:19 | 10:33:24 10/03/2008 | 08:10 | 10:28:00 | 10:36:10 10/04/2008 | 10:30 | 10:26:31 | 10:37:01 10/05/2008 | 11:40 | 10:25:37 | 10:37:17 10/06/2008 | 11:55 | 10:25:11 | 10:37:06 10/07/2008 | 11:25 | 10:25:10 | 10:36:35 10/08/2008 | 09:55 | 10:25:39 | 10:35:34 10/09/2008 | 06:55 | 10:26:52 | 10:33:47 >How long is the blackout? Will the sun being focused on my dish ruin >anything? That is not unheard of, but only when the dish owner has painted their dish with a glossy paint. The dish is normally not particularly reflective of light, but with a gloss finish has been known to melt the feedhorn. Obvious solution is to not paint your dish. --- Don Bradner www.arcatapet.net '90 Wanderlodge PT40 "Blue Thunder" towing '07 Jeep Liberty |
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