Sfosteriam: Added SupportingPeripheral and Archived categories

2025-10-15T06:33:25Z

Added SupportingPeripheral and Archived categories

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Move page script moved page April302016MeetingNotes to April302016 Meeting Notes: Rename from TWiki to MediaWiki style

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Revision as of 23:07, 22 October 2018

Thunderscreech: Imported from TWiki

2016-04-30T18:57:34Z

Imported from TWiki

New page

== Attending ==

Present: Rick, Cord, Dean, Jeffrey, Weston
* Payload conversation, we are agreed to 6lb max. Tradeoff in $$ for helium/balloon.
* Rough plan to set 6lb payload max, then shave ounces wherever we can near the end to minimize weight (as trade for max altitude)
* Cord has friend Andrew Wilson who will attend in two weeks, he has extensive ham experience.
* Dean described the bat tracking system he was using. 48 hour life on battery-powered radio beacons they'd glue to them. (recovery discussion)
* Weston got the 900mhz serial pipe. [http://store.rfdesign.com.au/rfd-900p-modem/ RFD 900+ by RFDesign]
* [http://www.quectel.com/product/prodetail.aspx?id=13 GPS L70] is chip, according to specs it has 'balloon mode'. We may need to find out if we have to toggle this somehow. Notes: 60k GPS notes: http://showcase.netins.net/web/wallio/GPSrcvrsvs60kft.htm
* Cord's [[Re Phone]] GSM chipset is programmable (per Weston). Weston requested Cord research the capabilities of the Duino.
* Dean suggested we do a Foxhunt to practice recovery techniques. Weston suggested cutting 900mhz if the final land-recovery is the main focus and we are only using a single method. Cord will focus on GPS functionality in [[Re Phone]]. 
* Standalone beacon possibility: http://rcbeacon.com/blog/?product=fox-hunt-beacon-transmitter Ben ordered one for help with terminal recovery. 
* Dean asked if we could make the June Mini-Maker Faire date. Possibly?
* Weston described how he reverse-engineered a headset for the [[Bao Feng]] handheld to make a connector to the Pi so it can interface with APRS. Excellent. 
* Dean asked about timeline for testing recovery with what we have already, Weston says maybe 2 weeks.
* Ben suggest: we have a display table at Mini Maker Faire with either results or a display of the hardware. Cord: We should mail Nick at Science Factory
* We'll try a range test in two weeks then possibly perform an ad-hoc recovery test and/or try out having a fixed base while someone drives around with the transmitter setup. Cord will try to get GPS online, if it's not available then we'll just test signal reception w/ canned data. 
* Weston would like us to commit to range test.
== Weight notes ==
{| border="1"
|-
| RFD 900+ || 18g
|-
| Handheld Baofeng || 127g
|-
| Raspberry Pi || 157g (w/ cable)
|-
| [[Re Phone]] || 22g
|-
| Spot Tracker || 179g
|-
| 4000mah battery || 121
|-
| Sphere || 311g w/ guts
|-
| ||
|-
| ||
|-
| Working total: || 935g
|}

-- Main.BenH - 30 Apr 2016

April302016 Meeting Notes - Revision history

Sfosteriam: Added SupportingPeripheral and Archived categories

Move page script: Move page script moved page April302016MeetingNotes to April302016 Meeting Notes: Rename from TWiki to MediaWiki style

Thunderscreech: Imported from TWiki