The Pieps 457 was released in 1991&1998 and discontinued in 2006.
I haven't tested this old workhorse. I expect that it performs similar to the other analog beacons. This transceiver was originally released in 1991 and updated in 1998. Although it does transmit on the 457 kHz frequency, it is ancient and should be retired.
|Owner's Manual:||Read It|
|Pros: One of the first 457 kHz transceivers.|
|Cons: Many (e.g., no direction indicator, can't handle spikes, etc).|