Ham Radio - The 630 meter CW transmitter part 4. It's done and it works! - YouTube
Antique Radio Forums • View topic - 630 meter (472-479 kHz) Amateur Band
Meter WSPR Beacon Transmitter
Ham Radio Bands | NewHams.info
Build Your Own Low Cost 630m Load/Match - Nashua Area Radio Society
630 meter band: i1wqrlinkradio.com
Hams Map Powerlines for Low Frequency Interference | QRZ Forums
WD8DAS 630-Meter Band Operations
630m Transverter
WD8DAS 630-Meter Band Operations
Ham Radio - Get on 630 meters with a bucket variometer! - YouTube
KL7UW 630m Topics
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
630-meter Ham Band | A Ham Radio Band below the AM Broadcast Band - YouTube
Revised ARRL Frequency Charts Now Available
472kHz.org
472kHz.org
Episode 44: A Survey of the 630-meter band for Amateur Radio -
2200 and 630 Meters
US Amateur Radio Bands: Frequency Charts
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
472kHz.org
Loop Antennas for 630 Meter Transmitting
The 630 - Meter Band: Is it Practical for Amateur Use? on Vimeo
630m Transverter
New 630-Meter Band Reported “Very Busy”
Getting Started on 630 metres
Ham Radio - My 630 meter magloop. An overview - YouTube
Untitled
2200 and 630 Meters
