Avalanche Safety Equipment Buying Guide

If you're caught in an avalanche and buried, you have about 20 minutes before you die from carbon dioxide poisoning. That may sound like a long time but in a search across a large mountain that time soon disappears.

There are lots of ways to mitigate the risk of avalanches (terrain management, weather conditions, snow profile, snow loading, face direction, etc.). However diligent you are, there is always the chance of being caught in a slide.

This is why it is important to have the necessary equipment and training to carry out an effective rescue.

Almost all transceivers are now digital rather than analogue. The digital aspect allows the transmitting signal to be analysed and converted into directions and distance on a display screen (simplifying the search process). An analogue output is a series of beeps that intensifies the closer you get to the victim.

Another change that has occurred in beacon technology is the number of antennas. Most now have 2 or 3, each transmit a signal on different planes. This means that whatever angle the victim gets buried, at least one signal is easily available to the rescuers. This dramatically speeds up the search.

Most transceivers perform the transmit and search function to a high standard, improving the chance of rescue. Where they differ is in multiple burial scenarios, screen display, audio assistance and signal range.

Each manufacturer has their own take on the best method for multiple burial searches, with the ability to mark (flag) and ignore signals if instructed. This technology needs to work in tandem with advanced training and search (micro search and three circles) methods to work effectively.

Some transceivers supplement the display with an audio system found in the old-style analogue beacons. This is an extra that some people prefer while some find it distracting, it's personal taste.

One attribute of transceivers that is often misinterpreted is signal range. If you have a longer range, you will be able to find someone who is further away. Most training courses recommend performing a 40m search path (well below the range of some of the high-end transceivers) to protect against parties in your group who may only have a 40m range beacon (the minimum transceiver range).

When considering which transceiver to buy, your experience and intended backcountry should guide which beacon you opt for. Some models with advanced options and detailed screen analysis may complicate the search process if you're a novice. On the other hand, these extra features may speed up the search in skilled hands. It's all about finding the model that is right for you.

There is a range of handles avalanche shovels come with each with their own benefits:

• D Handle: the most efficient and effective handle it gives you maximum leverage and grip

• Hybrid, T Bar handle: slightly lighter and smaller than the D handle it can adapt to a left and right-hand preference

• T bar handle: the most compact and lightweight handle

  
  
  Almost all avalanche shovels come with telescopic (aluminium) shafts that click into place, extending the length and leverage of the shovel. When not in use you can dismantle the blade from the shaft to fit the shovel in your pack.

For more information on avalanche safety and courses on how to improve your knowledge and technique have a look at Henry's Avalanche Talk or Glenmore Lodge.