For example, tuning in an 800 kHz station would generate a 345 kHz signal (800-455=345) that would be subtracted from the incoming signal (800-345=455).

The frequency range for the PLAC 100 is 50 kHz to 400 kHz. The transformer can handle up to 220 W in SMD and through-hole versions. Operating temperature range is -55°C to +125°C.