Want to learn more? This is a great book.

Ortovox M1 Avalanche Transceiver Review

The Ortovox M1 was released in 1998 and discontinued in ~2000.

Image of a Ortovox M1

Ortovox recalled the M1 and M2 due to a problem with variances in battery sizes.

See the review of the M2 for a similar Ortovox analog transceiver.

Model:  M1
Manufacturer:  Ortovox
Retail Price:  $???.??
(discontinued ~2000)
Score: 
Type:  Analog
Antennas:  1
Marking:  No
Updatable:  No
Owner's Manual:  Read It

Pros: Long range. Excellent analog transceiver.

Cons: Many (e.g., no direction indicator, can't resolve spikes, etc).