OzarkCon 2008

Why a Long Wave Talk at a QRP Conference?

Long Wave Spectrum

Types of Signals
300 Hz to 30 kHz

Man Made Signals

Military

Navigation Signals

TV Horizontal Sync. Oscillators

The Power Grid!

Spectrogram of Man Made Signals

More Man Made Signals

Natural Emissions

‘Spherics

Spectrogram of ‘Spherics

Tweaks

Spectrogram of Tweaks

Whistlers

Spectrogram of Whistlers

Dawn Chorus

Spectrogram of Dawn Chorus

Other Emissions

Spectrogram of Unusual Emissions

How To Listen

E-Field Probe Receiver

E-Field Probe Receiver Example

E-Field Probe Receiver Kit

Commercial Receiver

H-Field Probe Receiver

Superheterodyne Receiver Example

Amplifier

Recording

Recording

Analyzing Software

Analyzing Software

Analyzing Software

Other Bands of Amateur Interest

LowFER Example

QSL From LowFER Station

Useful Web Links

References

"73"