Thanks to Terry Ralphs for the details shown below and especially useful for ski touring. Technical but important information 

1. Mobile phone, radio, gps, or anything metallic against the transceiver will reduce its emission by half. It doesn't matter if the transceiver is in an outside pocket and the "phone" on the inside the fact that they are together is enough to reduce emissions. This should be detected at the group check. On group check it is recommended holding the transceiver in line with the one to be tested, so normally vertical, this is counter to normal search mode when the transceiver must be held horizontally.
2. Make a full send and receive check at the start of each day. The time needed is not great and added psychological benefit to the group is also a bonus.
3. When turning a Mammut Pulse on use two fingers, one on each red button, going into search one finger on the big button, Importantly when going back into send just push the bar back and don't use any button so that there is no possibility to turn the device off if using gloved hands.
4. The Pulse firmware update to 3.2 is very worthwhile. Added functionality includes search airport mode, greater feedback on the devices settings and most importantly the rescue send mode. The rescue send mode is activated when turning the device from search back to send. In this mode the transceiver will not send unless it is static for 4 minutes. This means that it will not interfere with a search and whilst moving the motion sensor stops the device from transmitting. If only slight movement is detected such as in a burial situation it starts transmitting after 4 minutes. There have been cases where rescuers have been buried by secondary avalanche and this was developed by Mammut as an extra safety layer. 
5. There is a danger of having a mal adjusted transceiver which transmits outside the normal range (457khz +-80hz). The problem is that a digital transceiver will adapt to the misaligned frequency (if it is the strongest signal) but as the digital search transceiver has a short frequency search bandwidth it will be taken away from the standard 457khz and so you will lose the rest of the transmitting transceivers. Once the mal adjusted transceiver is out of range the search transceiver will re calibrate to the next strongest transmitters frequency and pick up the correctly transmitting transceivers. This could take extra time in an avalanche search especially if you cannot switch off the defective transmitter. The most likely transceivers to be misaligned are the Ortovox F (ceramic aerial) 1. If using an all analogue system then this is not a problem. Also if the device is outside the tolerance range then the signal strength is halved.
6. Overlapping / Super imposition of frequency issues. The pulse rate of the avalanche transceiver system is a pulse at 0.3 sec length with a space of 0.8 to 1.3 sec (average 1 sec). The problem is that in some older or defective transceivers the pulse length (0.3 sec) might be greater than 0.3 sec and this means that there is a greater chance that one transceiver will hide the others signal as the signals will be superimposed. There is also the chance that this might happen with a correctly adjusted transceiver.
7. Basic search protocol. Primary search to hold transceiver horizontally by the ear rotating slowly to define a circle, then put in vertical position for 2 seconds and then back to horizontal, looking for signs on the snow and listening for beep (Pulse analogue range 80m, digital range 50m). Secondary search, on signal move quickly until 10m from victim then hold transceiver steady using two hands. Keep metal and ski poles away from transceiver. At 5m stop for 2 seconds and reset /align direction perfectly. At 3m airport landing system staying on the line. When signal minimum (now on knees) go past then back to redefined minimum, stay still and use arm's length to define the minimum do not move further. In a shallow burial this works well but if deep burial you will need greater room to define the centre of the circle.
8. Glencoe Mountain Transceiver Park and Glenmore Lodge offer hands on training in Scotland. Also check Mammut manual  for more details on their transceivers. Finally This site can be translated easily and offers a wealth of information. 

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