Communication and generally getting noticed.
Communication using visible wave-lengths.
Marking flashers and strobe-lights.
Collection of different brands > avimarltd.tripod.com
Pyrotechnics.
Collection of different brands > avimarltd.tripod.com
Special light-sources.
- 'Acr Hemi' water activated light 1916 > avimarltd.tripod.com
- 'Aquaspec Aq180 lightbuoy light > http://www.mailspeedmarine.com
- 'McMurco' life-jacket light > avimarltd.tripod.com
Communication using invisible wave-lengths.
Portable Locater Beacon.
- Elt-system easy aircraft personal portable locater beacon > avimarltd.tripod.com
'EPIRB-s'
Collection of different brands of Gmdss float-free satellite emergency positioning radio beacons > avimarltd.tripod.com
Radios (VHF-UHF).
Collection of different brands of radios > avimarltd.tripod.com
GPS.
Collection of different brands of global positioning systems > avimarltd.tripod.com
Infrared._
'Tlx' thermal imager > avimarltd.tripod.com
X-ray.
'Scantrak' digital portable x-ray system and generator > avimarltd.tripod.com
Radar-reflectors.
- 'Mca' inflatable radar-reflector > avimarltd.tripod.com
- same of unknown brand.
3. Fog, smog, mist and cases of being lost.
Using sound
- 'Howller' alarm, creates 110 dBa at 10 feet > http://www.lifesaving.com
Fog-goggles and blower.
- 'Sparkler' anti-fog-goggles > http://www.lifesaving.com
- 'Ramfan-gf210', blower > avimarltd.tripod.com
Super-specs.
- Dr. William Feinblooms glasses magnify 18x > http://blog.modernmechanix.com/
Telestereoscope.
- Cassidy Curtis and Chris Whitney made this for the Burning Man festival in 2000 > http://eyestilts.com/
Binoculars.
- Clive Milne's 510mm diameter f5 binocular telescope > http://deepsky.cia.com.au
Co-garph.
- Australian invention makes maps of the ground it covers > http://blog.modernmechanix.com/
SWAN
- System for wearable audio navigation, the Georgia institute of technology > http://www.gatech.edu/news-room/release.php?id=1090