Revised ARRL Frequency Charts Now Available
New 630-Meter Band Reported “Very Busy”
Hams Map Powerlines for Low Frequency Interference | QRZ Forums
KL7UW 630m Topics
WD8DAS 630-Meter Band Operations
Ham Radio - Get on 630 meters with a bucket variometer! - YouTube
Ham Radio - My 630 meter magloop. An overview - YouTube
Getting Started on 630 metres
630 meters Ham Radio - Old is New, Again - Making It Up
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
472kHz.org
472kHz.org
630m Transverter
2200 and 630 Meters
630-meter Ham Band | A Ham Radio Band below the AM Broadcast Band - YouTube
630 meter band: i1wqrlinkradio.com
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
2200 and 630 Meters
Meter WSPR Beacon Transmitter
Episode 44: A Survey of the 630-meter band for Amateur Radio -
US Amateur Radio Bands: Frequency Charts
Antique Radio Forums • View topic - 630 meter (472-479 kHz) Amateur Band
The New VK4YB 630m Transverter • AmateurRadio.com
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
