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Re: Helium
Zack Clobes <zclobes@...>
Did you get our tank?
Zack Clobes, W0ZC
Project: Traveler
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Time Slot APRS
Michael Gray <mgray@...>
If a TDMA (Time Slot) method of sharing the 144.34 MHz frequency is used
for APRS, someone should specify if the time is GPS or UTC. There is currently a 13 second difference between the GPS and UTC time of day. Most GPS engines correct for the difference and report UTC, but not all of them do or they can be configured to report either one.
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Re: Meal Reservations
Zack Clobes <zclobes@...>
We'll have four adults and about 3 children (I'm
assuming Jon's kids will be with him)
Zack Clobes, W0ZC
Project: Traveler
----- Original Message -----
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Re: Got Helium?
Zack Clobes <zclobes@...>
We'll go ahead and pay for a full tank, but we'll
only be using a 600g balloon for 2lbs. We could probably get by with other
people's remains. A couple of half tanks should be more than
enough.
However it works out.
Zack Clobes, W0ZC
Project: Traveler
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Re: Meal Reservations
Mark Conner <n9xtn@...>
NSTAR will have about 6.
toggle quoted messageShow quoted text
- Mark
----- Original Message -----
From: <paul.verhage@boiseschools.org> To: <GPSL@yahoogroups.com> Sent: Wednesday, June 19, 2002 16:43 Subject: [GPSL] Meal Reservations I'll be in Kansas on the 1st of July. At that time I'll makepeople. Is there a consensus that that is a good working number?
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Re: More GPSL frequency coordination items
Mark Conner <n9xtn@...>
Answers below from TVNSP, Traveler, and KD0FW. Still
awaiting inputs from EOSS and WB8ELK.
TVNSP will transmit between :00 and :11 using
KD4STH-11. No backup beacon.
KD0FW's simplex repeater will be on 147.585 MHz.
Traveler will beacon at an interval of a few seconds more
or less than 60 so we don't hit one payload's slotted beacons all the
time.
73 de Mark N9XTN
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Re: More GPSL frequency coordination items
Bill Brown
Mark,
I'll have my frequencies figured out this weekend and will post it on the group. - Bill WB8ELK
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Re: Meal Reservations
Bill Brown
Depending on whether I can convince someone to travel along with me from
Huntsville, AL....there will be either 1 or 2 for dinner. - Bill WB8ELK
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Re: Time Slot APRS
Mark Conner <n9xtn@...>
Time slotting should be done using UTC, which is the normally
toggle quoted messageShow quoted text
reported time in GGA and RMC strings. 73 de Mark N9XTN
----- Original Message -----
From: "Michael Gray" <mgray@ess-us.com> To: <GPSL@yahoogroups.com> Sent: Wednesday, June 19, 2002 21:28 Subject: [GPSL] Time Slot APRS If a TDMA (Time Slot) method of sharing the 144.34 MHzfrequency is used for APRS, someone should specify if the time is GPS or UTC.There is currently a 13 second difference between the GPS and UTC timeof day. Most GPS engines correct for the difference and report UTC, but notall of them do or they can be configured to report either one.Sponsor ---------------------~--> Free $5 Love Reading------~-> http://docs.yahoo.com/info/terms/
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Sproul
paul.verhage@...
I just got word, Keith can't make the symposium.
Paul
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Phone Numbers
paul.verhage@...
Ralph and Mark, can you give me a phone number to contact you?
I don't believe I'll have email access after Friday. Paul
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Display Space?
paul.verhage@...
Does anyone need space to display their program? I'll arrange for
tables if given notice. Paul
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TVNSP Payload Update
paul.verhage@...
TVNSP will fly the following payload.
APS camera on scan boom Geiger counter Relative humidity and temperate sensor Mementos Idaho Airborne Assault (Mr Potatohead with a parachute) Paul
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A/V
paul.verhage@...
I just got an email from my mother. There will be a TV/VCR,
overhead projector, and an LCD projector with PC and VCR connections. I'll check out the equipment in two weeks when I get to hot and humid Kansas. Paul
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Reservations and Helium
paul.verhage@...
I have the following dinner reservations
Traveller: 7 NSTAR: 6 Bill Brown: 2 Me: 1 Based on these numbers, I'll make reservations for 30. Does this sound good? For helium, I have the following reservations Bill Brown: 1 NSTAR: 1 Traveller: 1 Mike Bogard: 1 TVNSP: 2 EOSS: 2 Based on these numbers, I'll get 8 tanks of helium. There may be two half empty tanks in this number, so there should be some cushioning. Paul 100,000 feet. Been there, Done that.
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First prediction
Mark Conner <n9xtn@...>
Granted, 2 1/2 week forecasts aren't worth much, but I ran one anyway.
For consistency's sake, I'm going to run predictions using 1000 fpm ascent, 1000 fpm sea-level descent, burst at 95,000 ft. Bursts at lower altitudes will move the predictions a few miles east. Faster ascent and descent will (in general) shorten the distance along the same direction as the original prediction. With these conditions in mind, the forecast I ran shows a landing 9.5 miles from launch on a bearing of 054 degrees. The forecast indicates we should have warm humid conditions (low 90s in the afternoon) with afternoon and evening thunderstorms. 73 de Mark N9XTN
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I-gate coverage for GPSL
Mark Conner <n9xtn@...>
Chris WA5RRN in Topeka will provide I-gate coverage for 144.34 MHz for
the flights. This should get all but ANSR on the Internet. 73 de Mark N9XTN
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Long-range forecasts
Mark Conner <n9xtn@...>
The long-range forecasts for the 6th fall into one of two categories so
far: 1) The high-pressure ridge at 500mb and above is right on top of Kansas or a little to the east. This makes for southerly winds at the surface with plenty of Gulf moisture and heat. The upper winds are very light, making the landing somewhere within a 10-15 mile circle of the launch site. This isn't so good as there is a large reservoir to the north of the launch site, one to the west, and Fort Riley in between. If we land NE- SE-S of the launch site, we're OK. 2) The ridge shifts westward a bit. This puts the surface high right over Kansas, making the winds light or northeasterly at the surface. Aloft, the winds are from the west or northwest at 20-30 knots. This scenario gives us more pleasant weather (high 80s with drier air instead of 90s and humid) and a landing about 30 miles to the east or southeast. This in general puts us in a more favorable area for a landing. So far, none of the predictions have indicated a chase >40 miles, so we may be able to stick around after launch for up to an hour and entertain questions, etc. 73 de Mark N9XTN
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Time slot assignments
Mark Conner <n9xtn@...>
I've given the five groups who can time slot on 144.34 their
slots. See http://members.cox.net/n9xtn/gpsl_2002_freq_coordination.htm for details. The data will probably be on Ralph's page soon. I went with 12-second windows once per minute because I figured trying to hit a six-second window may be difficult if you want to send more than one packet. Comments welcome - it's not too late. EOSS has indicated they are still considering whether to fly ATV or the cross-band repeater - probably will not be both. If anyone else has updates on their payloads (especially RF-emitting ones), let me know. 73 de Mark N9XTN
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Re: Reservations and Helium
Don Pfister <ka0jlf@...>
Paul, I do not see my helium listed or dinner reservations (however, I didn't
make dinner reservations because I wasn't sure if when we would make it). paul.verhage@boiseschools.org wrote: I have the following dinner reservations-- [Signature File] Name=Don Pfister KA0JLF HABITAT SkyLab soon to add SeaLab (underwater robotics) (High Altitude Basic Investigation Testing And Tracking) Email=ka0jlf@earthlink.net or ka0jlf@kc.rr.com or donp@netlab.org http://habitat.netlab.org http://www.kc.net/~dpfister - going away not sure when they will pull the plug http://www.netlab.org/~donp http://home.earthlink.net/~ka0jlf http://home.kc.rr.com/cdpfister/ http://www.netlab.org:8888/ Visit the Lab in the Hobby wing. HABITAT being built... view stations on the web real time (~3 minute updates): http://www.findu.com/cgi-bin/find.cgi?KA0JLF Home http://www.findu.com/cgi-bin/find.cgi?KA0JLF-9 van http://www.findu.com/cgi-bin/find.cgi?KA0JLF-11 balloon
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