September 2011 - AMSAT-BB - mailman.amsat.org

KD8KSN/M Ops 9/8
by Zachary Beougher 09 Sep '11

09 Sep '11

Hi All, For those of you who worked me while mobile in EN83 yesterday, I will be sending out cards Monday and no sase/request is needed. I was hoping to get on a few other passes from EN75/74/81, but my RX antenna was sandwiched between two canoes which was impeding my receive ability. I will be back through these same grids in December, and I am hoping to be a bit more successful then. 73! Zack KD8KSN

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Elko Trip
by Kevin Deane 09 Sep '11

09 Sep '11

Ok DN01 is out sorry. However DN20-21 meet right above Jim's property so those are definatly in for Sun & Mon I will be up early for the 51 passes for sure and the rest I will basicly hit every pass I can. I am not gonna try and figure out exact times, if you hear me then there you go. :) DN00 I will try whatever passes are left on Sat afternoon from Toulon Lake off I-80. DN10,11 Meet perfectly just outside Winnemucca where I-80 bends up a little there, but I am not sure what time we will be passing through. If any FM Sats are overhead you know I will make him stop so I will try 00,10,11 comin and goin. Good Luck to all, I always have fun anyway, so this should be good for everyone. Kevin KF7MYK

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Re: Magnetic North vs True North
by jlv 09 Sep '11

09 Sep '11

Ed: That is true. For my position MONTEVIDEO - URUGUAY Latitude: 34° 54' 38.2" S Longitude: 56° 11' 35.9" W Magnetic declination: 9° 34' WEST Declination is NEGATIVE Inclination: -39° 37' Magnetic field strength: 23116.9 nT regards Jose Luis Vila CX2AN ----- Original Message ----- From: "Edward R. Cole" <kl7uw(a)acsalaska.net> To: "jlv" <jlv(a)fing.edu.uy> Sent: Thursday, September 08, 2011 1:12 PM Subject: Re: [amsat-bb] Re: Magnetic North vs True North > At 07:30 AM 9/8/2011, you wrote: >>True North >> >>tip: >> >>Look for the magnetic north with the compass, read their geographical >>coordinate in the GPS, >>use this webpage >>http://www.ngdc.noaa.gov/geomagmodels/Declination.jsp >>and calculate the magnetic declination for their place. >>You will know where this the true north using the magnetic north + / - the >>degrees of magnetic declination. >> >>Jose Luis Vila >>CX2AN >>CX0CFI op. >> >>-----Mensaje original----- From: Luc Leblanc >>Sent: Wednesday, September 07, 2011 10:07 AM >>To: amsat-bb(a)amsat.org >>Subject: [amsat-bb] Magnetic North vs True North >> >>How i find my north! >> >>At noon always using standard time i pointed the beam in the direction of >>top tower pole shadow on the ground. Quite simple and accurate >>enough here. >> >>"-" >> >> >>Luc Leblanc VE2DWE >>Skype VE2DWE >>www.qsl.net/ve2dwe >>DSTAR urcall VE2DWE >>WAC BASIC CW PHONE SATELLITE > > thanks Jose, > > very useful as declination is moving +17min/year here > 17deg52min east > > I have old aviation maps of the region showing 26-deg declination. > > The sun shadow method works only if you know accurately what time solar > noon is. For our time zone it is 2202:52 utc (today) which corresponds to > 2:02:52 pm local time. So if you used the shadow at 12:00:00 local time > you would be off considerably from true north. Of course one hour is due > to daylight savings time which advances the clock one hour in summer and > the fact that our local time was permanently advanced by one hour for > political/business reasons (so we would only be +4 hours from EST in the > USA). > > This is the reason that one must know true north to orient a sundial. > > Sea navigators know they either need to know time precisely to "shoot the > sun" and find their location or know true north to determine the exact > time of meridian crossing at noon. > > > > 73, Ed - KL7UW, WD2XSH/45 > ====================================== > BP40IQ 500 KHz - 10-GHz www.kl7uw.com > EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-? > DUBUS Magazine USA Rep dubususa(a)gmail.com > ======================================

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Re: Magnetic North vs True North
by jlv 09 Sep '11

09 Sep '11

Ed: That is true. For my position MONTEVIDEO - URUGUAY Latitude: 34° 54' 38.2" S Longitude: 56° 11' 35.9" W Magnetic declination: 9° 34' WEST Declination is NEGATIVE Inclination: -39° 37' Magnetic field strength: 23116.9 nT regards Jose Luis Vila CX2AN ----- Original Message ----- From: "Edward R. Cole" <kl7uw(a)acsalaska.net> To: "jlv" <jlv(a)fing.edu.uy> Sent: Thursday, September 08, 2011 1:12 PM Subject: Re: [amsat-bb] Re: Magnetic North vs True North > At 07:30 AM 9/8/2011, you wrote: >>True North >> >>tip: >> >>Look for the magnetic north with the compass, read their geographical >>coordinate in the GPS, >>use this webpage >>http://www.ngdc.noaa.gov/geomagmodels/Declination.jsp >>and calculate the magnetic declination for their place. >>You will know where this the true north using the magnetic north + / - the >>degrees of magnetic declination. >> >>Jose Luis Vila >>CX2AN >>CX0CFI op. >> >>-----Mensaje original----- From: Luc Leblanc >>Sent: Wednesday, September 07, 2011 10:07 AM >>To: amsat-bb(a)amsat.org >>Subject: [amsat-bb] Magnetic North vs True North >> >>How i find my north! >> >>At noon always using standard time i pointed the beam in the direction of >>top tower pole shadow on the ground. Quite simple and accurate >>enough here. >> >>"-" >> >> >>Luc Leblanc VE2DWE >>Skype VE2DWE >>www.qsl.net/ve2dwe >>DSTAR urcall VE2DWE >>WAC BASIC CW PHONE SATELLITE > > thanks Jose, > > very useful as declination is moving +17min/year here > 17deg52min east > > I have old aviation maps of the region showing 26-deg declination. > > The sun shadow method works only if you know accurately what time solar > noon is. For our time zone it is 2202:52 utc (today) which corresponds to > 2:02:52 pm local time. So if you used the shadow at 12:00:00 local time > you would be off considerably from true north. Of course one hour is due > to daylight savings time which advances the clock one hour in summer and > the fact that our local time was permanently advanced by one hour for > political/business reasons (so we would only be +4 hours from EST in the > USA). > > This is the reason that one must know true north to orient a sundial. > > Sea navigators know they either need to know time precisely to "shoot the > sun" and find their location or know true north to determine the exact > time of meridian crossing at noon. > > > > 73, Ed - KL7UW, WD2XSH/45 > ====================================== > BP40IQ 500 KHz - 10-GHz www.kl7uw.com > EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-? > DUBUS Magazine USA Rep dubususa(a)gmail.com > ======================================

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Massive Power Failure(s)?
by Clint Bradford 09 Sep '11

09 Sep '11

Southern CA is suffering a major power failure ... the AMSAT.org Web site is down ... What am I going to do tonight??? Clint Bradford, K6LCS

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G5500 and LVB tracker interface
by Chris Bloy 08 Sep '11

08 Sep '11

Hi Group, I have finally order the fibre glass pole from Moonraker of all places and am awaiting its replacement after being damaged in post! Anyway, I have also received and played with my new shiny LVB tracker to interface to the G5500 and have a couple of questions that may you guys could help me with! a) I have calibrated the rotator with the G5500 and it would appear at 0 degrees on the LVB tracker, the control box is at 0? If I use the controls on the control box it moves about 2 degree to the stop point. Is this normal or have I missed something as I have recalibrated several times! b) The tracker has a USB interface and uses a virtual serial port to communicate with, but it seems to disconnect quite a lot when using NOVA during the testing? c) What are the recommended settings for NOVA as I am not sure I understand them 100%! I know it uses the G232A command set and does control the rotator, but I am not sure I have set the interface section correctly.. Do I set the maximum azimuth to 450 and leave the azimuth setting to 0-360? Sorry for the questions, but I know how to use it once its been working, just never had to create all this from stratch. I have checked the archive on AMSAT-BB and not found much to help, although some hints to actually get the rotator talking did come from the group! Many Thanks, Chris Bloy - M0DQO

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Elko
by Kevin Deane 08 Sep '11

08 Sep '11

I am getting some requests for more Grids. We will be transmitting Sat, Sun, Mon not sure from where or when yet will post a better scheduale this evening. So Far DN 00,10,11,20 Hope to work in DN 21 maybe O1 Can only do FM Sats. Kevin KF7MYK

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Re: Magnetic North
by jlv 08 Sep '11

08 Sep '11

Hi Tom, another useful page http://www.n2yo.com/?s=5580 enjoy..!! jlv - CX2AN ----- Original Message ----- From: Tom Deeble To: jlv(a)fing.edu.uy Sent: Thursday, September 08, 2011 1:36 PM Subject: Magnetic North Jose, That's a very handy site. Thanks for the info on the AMSAT bb. 73's, Tom - KA6SIP

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Magnetic North vs True North
by Carl Rimmer W8KRF 08 Sep '11

08 Sep '11

The earlier discussion on this topic caused me to think about my setup. I know the tracking programs use True North; my question: If my declination is 8 º 6' West, is my true north East or West of Magnetic North. I am currently setup to where my True North is 8º East of Magnetic North. I have looked a various sights on the Internet but I have always had a problem wrapping my thick brain around this topic. Thanks, -- *Carl W8KRF*

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K2BSA/5 at National Scouting Museum, Irving, Texas
by Tom Schuessler 08 Sep '11

08 Sep '11

Hello all, I will be leading a Radio Merit Badge class at the National Scouting Museum in Irving, Texas, EM12, this Saturday, September 10th. We will be using K2BSA/5 as our active call for the day and I will attempt a low angle AO-27 pass with an AOS for me of 18:22 (+ for satellite turn on), an AO-51 pass with an AOS of 21:08 and maybe but not likely, a SO-50 pass at 21:44. Rig will be my Arrow antenna and the HT but maybe a small amplifier for a bit extra punch. There will be Scouts in tow observing and maybe throwing out the all-be-it not so rare EM 12 grid. Please help me out and pro-actively call for K2BSA/5. You will bring a level of excitement to the Scouts taking the class and maybe helping to spur further interest in our fine hobby. Also please look for us on the HF bands near the Scout frequencies and for those local in the Dallas/Fort Worth area, on the Irving 146.72 and the Cedar Hill 442.400 repeaters as we demonstrate Ham Radio to the Merit badge Scouts and other visitors to the National Scouting Museum. Schedules are welcome. 73 and hope to see you on the birds this Saturday. Tom Schuessler, N5HYP n5hyp(a)arrl.net

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