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Re: Got Helium?
paul.verhage@...
I have carried one tank in my car, I should be able to get at least two in there.The center locks, so the tanks will be safe. Paul
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Re: Got Helium?
Don Pfister <ka0jlf@...>
I have carried one tank in my car, I should be able to get at least two in there.
toggle quoted messageShow quoted text
It might take me a few trips but if no one closer, I'll do it. They will be okay at Johnson Near Space Center right? paul.verhage@boiseschools.org wrote:
Paul, I'll take one tank of helium. I could drive out to Manhattan and helpLinweld won't deliver. I have to carry the tanks out myself.
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July 4th weekend
Keith Sproul <ksproul@...>
Can someone tell me where and when the events are for the July 5th-6th
weekend? I am making my travel plans etc.. Keith Sproul -- Keith Sproul Ham Radio: WU2Z Student Housing Network Coordinator 732 445-3695 Work Rutgers University Computing Services 732 445-2968 Fax mailto://ksproul@noc.rutgers.edu
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Re: Got Helium?
Michael L. Bogard <kd0fw@...>
If I could get a tank that would be great also. I will be
driving my truck to the gpsl and might be able to help haul the tanks. I may not
be able to get off work on Friday early so I might not get there till about 6:00
or 7:00pm. Keep in touch and thanks de kd0fw
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Re: July 4th weekend
Mark Conner <n9xtn@...>
Hi Keith,
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The symposium is scheduled for Friday, July 5th starting at 9am and lasting most of the day. The launch will be Saturday the 6th with a rain date of Sunday the 7th. I believe both Manhattan and Topeka have limited air service, but it's probably expensive. It's probably more cost-effective to travel to Kansas City (MCI) and drive a rental car the 120 miles (2 hrs) from the airport to Manhattan. Your return date depends on how sure you want to be of seeing the launches. If you go back Sunday afternoon, you could chase with us on Saturday if we get off the ground, or if it ends up being on Sunday you'd at least see the launch. 73 de Mark N9XTN
----- Original Message -----
From: "Keith Sproul" <ksproul@td.rutgers.edu> To: <GPSL@yahoogroups.com> Sent: Friday, May 31, 2002 21:24 Subject: [GPSL] July 4th weekend 5th-6th weekend? I am making my travel plans etc..
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GPSL web site
Mark Conner <n9xtn@...>
Forgot to mention that the main GPSL 2002 web site is at:
http://users.crosspaths.net/~wallio/GPSL2002.html 73 de Mark N9XTN ------ Mark D. Conner E-mail: n9xtn@arrl.net Homepage: http://members.cox.net/mconner1 "Arrogance and stupidity, all in the same package.....how efficient of you!" - Ambassador Londo Mollari, Babylon 5
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Re: July 4th weekend
Keith Sproul <ksproul@...>
Thanks for the info..
toggle quoted messageShow quoted text
The web site told me what I needed.. It is at K-State.. My father went there.. My grandparents live in Clay Center.. I am going to fly to KC, get a car, and go visit my grandparents for the 4th, then go to Manhattan for the conf and launch.. Since it is close enough, I will stay with my grandparents and save on the hotel bill. I know the area much better than you would expect for someone from New Jersey.... Also, what is JNSC and where exactly is the launch from??? Keith
On Sat, 1 Jun 2002, Mark Conner wrote:
Hi Keith, --
Keith Sproul Ham Radio: WU2Z Student Housing Network Coordinator 732 445-3695 Work Rutgers University Computing Services 732 445-2968 Fax mailto://ksproul@noc.rutgers.edu
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Re: July 4th weekend
Mark Conner <n9xtn@...>
The launch will be at the Johnson Near Space Center, which is
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about 10 miles south of Manhattan. The main feature of the JNSC is a large storage building where we can fill 4-6 balloons inside out of the wind. Take a look at the pictures linked from this site - there are several taken at the launch site. http://members.cox.net/mconner1/knsp.html - Mark
----- Original Message -----
From: "Keith Sproul" <ksproul@td.rutgers.edu> To: <GPSL@yahoogroups.com> Sent: Saturday, June 01, 2002 11:21 Subject: Re: [GPSL] July 4th weekend father went there.. My grandparents live in Clay Center.. I am going tofly to KC, get a car, and go visit my grandparents for the 4th, then go toManhattan for the conf and launch.. Since it is close enough, I will staywith my grandparents and save on the hotel bill. I know the area muchbetter than you would expect for someone from New Jersey....9am 6thand lasting most of the day. The launch will be Saturday the butwith a rain date of Sunday the 7th. toit's probably expensive. It's probably more cost-effective milestravel to Kansas City (MCI) and drive a rental car the 120 the(2 hrs) from the airport to Manhattan. withlaunches. If you go back Sunday afternoon, you could chase beingus on Saturday if we get off the ground, or if it ends up Julyon Sunday you'd at least see the launch. http://docs.yahoo.com/info/terms/5th-6thweekend? I am making my travel plans etc.. Sponsor ---------------------~-->-- Kwick Pick opens locked car doors,------~-> http://docs.yahoo.com/info/terms/
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Frequency coordination
Mark Conner <n9xtn@...>
Hi everybody,
It's been a busy few weeks, and it's not getting any better for me. In addition to the GPSL, I have a design review for a software project next week, we are doing some minor renovation, painting, and installing new floor and carpet in the house in June, and two weeks after the GPSL I'll be getting married. I think we are gravitating towards the use of 144.34 MHz for primary APRS use for all payloads that will support it. I have been told that it's also used for FM simplex for ATV DX coordination, but most balloon groups use it for non-.39 work. ANSR uses 70cm for downlinks, so they'll be the exception. Backup beacons can use 144.39 MHz if desired, keeping in mind that you should keep the rate down (1x/minute or less) so we don't hog the channel. We have used 147.585 MHz for SSTV in the past in case anyone plans to fly that mode. A simplex repeater can use 446.300 MHz which appears to be pretty clear in this area. I believe we have frequency information for ANSR, TVNSP, KD0FW, and NSTAR, though not yet compiled in one place. I would like to get info from EOSS, WB8ELK, HABITAT/SkyLab, and Traveler. I don't think we have reps from Traveler and EOSS on the GPSL list, so I'll see about getting them to come up on the net here. If you've posted your info elsewhere, please copy it here to the GPSL list so we have it archived. See http://groups.yahoo.com/group/GPSL/files/ANSRFreqPlan.txt for an example. You can either post it or upload it to the files area. 73 de Mark N9XTN ------ Mark D. Conner E-mail: n9xtn@arrl.net Homepage: http://members.cox.net/mconner1 "Arrogance and stupidity, all in the same package.....how efficient of you!" - Ambassador Londo Mollari, Babylon 5
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GPSL Logos
paul.verhage@...
Let me try again. This time the logo and saying are in Corel Draw.
Feel free to do with the logos as you wish, but make sure it's not something embarassing. I plan to bring a t-shirt with the logos. Paul
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EOSS "Standard" Frequencies
lcerney <lcerney@...>
Hello all,
EOSS "standard" frequencies are: Telemetry 144.34 MHz Tracking Beacon 147.555 MHz xBand Down 147.555 MHZ Up 445.975 MHz ATV 426.25 MHz Simplex in field 146.58 MHz I also suggest a back channel frequency for each group to keep tactical chatter off the repeater. EOSS could use our xBand Up link frequency of 445.975 simplex. This is a preliminary listing. Many Freqs can be changed if needed. I'm sure Mike, W5VSI, will have more to add when he gets on the list. 73..... Larry K0ANI
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Re: GPSL cancellation
Bill Brown
Sorry to hear about that Jack,
I was looking forward to seeing you again....guess I'll just have to make the trip to hot hot dry dry Arizona from hot hot muggy muggy Alabama!!! I'll try to send a balloon your way this Summer special delivery balloon mail. 73s de Bill WB8ELK
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Frequencies for WB8ELK Balloon for GPSL
Bill Brown
I am still thinking about the payload I'll be launching...scavenging parts
from a dozen past payloads sitting in my garage at the moment. Currently I plan to fly an altitude record attempt with APRS GPS on 147.45 MHz (alternates are 144.34, 144.36 or 144.39) and camera video on 434 MHz ATV....I'll also have a 20 milliwatt 28.322 MHz CW transmitter as well for tracking. 73s de Bill Brown WB8ELK
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GPSL cancellation
aa0p <aa0p@...>
I am sorry, but an emergency reschedule at work has caused me to
cancel my particpation at GPSL 2002. As this project is of National need, I will not be able to attend your fine symposium. I will however, endeaver to get our ANSR video up to the EOSS team and I hope it will tell our story here in dry, dry, dry, hot, hot, Arizona. I will also write a tribute to Bill Brown from my early memories of his projects and the inspriration he provided to us in Colorado and that we still feel in Arizona. Sorry for the cancellation. 73 de AA0P
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Re: GPSL cancellation
K. Mark Caviezel
Shucks, Jack, sorry to hear the news.
I had been thinking about lofting a low altitude floater from Denver to Manhattan, but the critical mass for that project just hasn't formed, and indeed I will be out of the country July 5th and onwards. If any of the GPSL participant groups want to try their hand at a modest sized zero pressure polyethelene floater, just let me know. I'd be happy to provide a bag for the GPSL event. Check photos from EOSS 55 mission archieves to see one of my home built bags in action. - KMC KC0JHQ __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com
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Re: SiRF receivers
Ralph Wallio, W0RPK <wallio@...>
Michael,
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My response is delayed because I have been on the road for several days. Thank you for this good news. There are very few of us involved in amateur high altitude ballooning with roughly 10 active programs nationwide at any given time. Regardless, GPS receiver performance above 60kft is absolutely necessary. We do not have access to a GPS simulator so the only method we have to test for high altitude performance is to fly a mission and find out. Typically we fly a primary receiver we already understand while we test a secondary receiver. Primary and secondary receiver NMEA output rides an Amateur Radio telemetry downlink to ground stations either directly or via payload processing. I maintain a web page where we attempt to steer designers toward GPS receivers we know will work at high altitudes (see http://users.crosspaths.net/~wallio/gps60kft.html). I would like to add your information to this list but we first need to fly a test mission. Unfortunately all SIRF and partner, e.g., AXIOM, specification sheets I have seen specify maximum altitude as 60,000ft (this includes all SIRF specification sheets in your web pages). Manifests for several flights in early July are already locked but we will prepare for a test flight and advise you of results. Regards, Ralph Wallio, W0RPK wallio@crosspaths.net http://members.crosspaths.net/wallio Never use software to compensate for a poor hardware system
----- Original Message -----
From: "Michael Castle" <michael.castle@ntlworld.com> To: <wallio@crosspaths.net> Sent: Monday, May 27, 2002 17:16 PM Subject: SiRF receivers I work for SiRF and can confirm that all SiRFstar 1 and 2 receivers willhave some excellent low power modes which may be useful for ballooning.
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Re: SiRF receivers
Bill Brown
Ralph,
I flew an Axiom Sandpiper model receiver using the SiRF chipset on a mission in the Gulf of Mexico on our last Rockoon mission...it flew on the launch platform gondola. Their engineer claimed it would work over 60k feet just like the Motorola VP Oncore would...i.e. as long as you didn't exceed the speed limit (somewhere over 600 knots or so), the altitude limit of 60k would not be a problem. Some receivers will lock up at 60k feet regardless of the speed travelled, it depends on the manufacturer. I know that the VP Oncore works great, the Garmin 35 and (if specially modified, the Trimble See Vee 6). My experience was that although we were only travelling about 20 knots groundspeed, the Axiom Sandpiper receiver completely locked up at 60k feet and never came back up again during the rest of the flight. I haven't tried any more flights with the Axiom units, although I may try an experiment using the very tiny Swift model Axiom receiver that I have as a backup GPS to see if it works above 60k. 73s de Bill WB8ELK
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Re: SiRF receivers
Ralph Wallio, W0RPK <wallio@...>
Bill,
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Use of SiRFStar chipsets above 60kft is being discussed because AXIOM Sandpiper receivers are appearing on the inexpensive surplus market. I have evaluated a pair of these receivers for terrestrial applications, e.g., APRS, and find documentation and PC software to be readily available. Michael Castle has further contributed his knowledge that SiRF code will allow receivers based on SiRFStar-II chipsets to work above 60kft when velocity is <1000kts. However, the AXIOM Sandpiper receiver uses the SiRFStar-I chipset which Michael had not yet completely investigated. Your empirical evidence appears to definitively tell us that code in the SiRFStar-I chipset limits performance to altitudes below 60kt regardless of vehicle velocity and acceleration. All models of AXIOM Swift receivers use SiRFStar-II chipsets so Michael's contribution is valuable. Please compile and forward detailed information required for an AXIOM Sandpiper entry to http://users.crosspaths.net/~wallio/gps60kft.html and I will add it to the RED list. For comparison, this what I see when my Sandpiper receivers come up: SiRF Baseline Version: 1.3.1DKIT144 Axiom Variant: k201AX $ Build date: Nov 12 1999 $Build time: 14:42:07 TNX es 73 de Ralph Wallio, W0RPK wallio@crosspaths.net http://members.crosspaths.net/wallio Results may not be reproducible
----- Original Message -----
From: <wb8elk@aol.com> To: <GPSL@yahoogroups.com> Sent: Friday, June 07, 2002 0:19 AM Subject: Re: [GPSL] Re: SiRF receivers Ralph,feet just like the Motorola VP Oncore would...i.e. as long as you didn't exceed60k would not be a problem. Some receivers will lock up at 60k feet regardlessof the speed travelled, it depends on the manufacturer. I know that the VPSee Vee 6).tried any more flights with the Axiom units, although I may try an experimentusing the very tiny Swift model Axiom receiver that I have as a backup GPS tosee if it works above 60k.
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Frequency coordination page
Mark Conner <n9xtn@...>
I have uploaded a summary page to:
http://groups.yahoo.com/group/GPSL/files/gpsl_2002_freq_coordinat ion.htm If you can't get to the files area, try: http://members.cox.net/n9xtn/gpsl_2002_freq_coordination.htm Please take a look and let me know what to correct or add. 73 de Mark N9XTN ------ Mark D. Conner E-mail: n9xtn@arrl.net Homepage: http://members.cox.net/mconner1 "Arrogance and stupidity, all in the same package.....how efficient of you!" - Ambassador Londo Mollari, Babylon 5
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Re: Frequency coordination page
Bill Brown
I'll see if I can move the frequency off 147.455 if I can get a custom
oscillator...the cheap one from Digikey puts it right on 147.455...it's a design I've been working on for a cheap 2m FM transmitter for balloons. 73s de Bill WB8ELK
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