kd wrote:Cell phone availability can be rather spotty on the mountain. What if that is not an option?
Cellphones just plain aren't reliable in the backcountry. A couple of options:
1.
PLB (Personal Locator Beacon). A 406 MHz satellite beacon. SAR satellites continuously orbit the earth, pick up the signal, determine the position, determine the identity of the beacon owner (free registration with NOAA required), and alert the USAF Rescue Coordination Center. The Center then contacts local authorities (sheriff's dept, NPS, etc.) and notifies them of your identity, position, and that there's a SAR emergency. Great system. Developed for maritime industry. Time proven. Highly reliable.
No subscription fees. DOWNSIDE: units are expensive (at least $400.00 last I checked) and
only indicate emergency. However, as their popularity grows, prices are coming down.
2.
SPOT A
static text messaging device using the satellite phone system. Not a proven technology. Doesn't work well in tree cover, canyons, and some remote regions of the globe. All text is
static (in other words, you can't text like on a cell phone, you have to choose from one of several
predefined messages). Cost over time is generally higher than a PLB due to annual subscription fees. No guarantee SPOT service will stay in business (whereas the PLB system is run locally by US Gov't and internationally by respective foreign governments). UPSIDE: Can indicate "less than emergency" situations and can be used to track a person continuously
if the unit can link to the satellite phone network. That's a fairly big if.
3.
Satellite phone. Expensive. Notorious for not being able to get a signal. Doesn't work well in tree cover, canyons, and some remote regions of the globe. UPSIDE: Infinitely customizable messages.
4.
"Ham" Radio. Sometimes referred to as a CB (Citizens Band) radio. Depending on location, radio repeators (which relay your message on) may be accessible which allows use in backcountry areas. Not 100% reliable. Limited by "line of sight" issues to varying degrees depending on wavelength, xmission power, etc. Owner/operator must pass an exam and obtain an FCC "Ham" license. My impression is that So. Cal. has pretty good repeator coverage. Can't say much more; I'm not well informed on this point.
I know a couple of people who have bought a PLB, myself included. I've heard very mixed results with SPOT. Satellite phones aren't common for hikers/backpackers mainly due to their expense. Not sure how common Ham radios are among hikers, but in 40+ years I've only seen them once or twice.
A PLB seemed the best option to me in terms of ease of use, price, and reliability. I bought mine after an individual on this board spent 3 winter days trapped in the backcountry
without overnight equipment due to an injury. Said individual could have been rescued in the afternoon of the first day if a PLB had been available. Said individual's life was in definite danger due to hypothermia during those days. (Life in danger = bad in terms of the whole good bad thing for those unclear on this point)

All of the sudden $400 didn't seem all that expensive (it certainly gives my wife peace of mind). I've personally been involved (either myself or immediate family) in four SAR situations, in all but one of which (individual died on impact) a PLB could have been employed. In one case in 1984 where I spent three days in the wilderness when I had intended only to dayhike, a PLB would have made a
huge difference.
Regardless of whether you carry a cell or one of the above electronic devices, it's still a good idea to file a detailed hike plan and leave it with someone with whom you check in with upon your return. It's also not a bad idea to hike with someone, but I know many (the majority?) find the occasional solo to be very worthwhile. Just for myself, I no longer do winter or significant XC hikes solo. If I'm on trail or other identifiable route (e.g. Skyline, Sid Davis "trail," Tamarack Trail, etc.) my whole trip in decent weather, then I still do solos, even occasionally an overnighter.
Just some (rather off the cuff) thoughts,
HJ