Episode 44: A Survey of the 630-meter band for Amateur Radio -
FCC Opens 630/2200 Meters Amateur Band; Pre-Registration Required!
The 630 - Meter Band: Is it Practical for Amateur Use? on Vimeo
The 630M/2200M Antenna Recipe
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
Loop Antennas for 630 Meter Transmitting
630-meter band - Wikipedia
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
N2KNL | Band Plan
630 meters Ham Radio - Old is New, Again - Making It Up
Ham Radio - Get on 630 meters with a bucket variometer! - YouTube
Antique Radio Forums • View topic - 630 meter (472-479 kHz) Amateur Band
US Amateur Radio Bands: Frequency Charts
Hams Map Powerlines for Low Frequency Interference | QRZ Forums
630 Meters | W0QL – My Remote Base Journal
Marconi Antenna for LF/MF
Lowdown 630 Meter Amateur Radio Antenna - 630.PD | eBay
Dual 6V6 QRP Transmitter/Regenerative Receiver 630/160/80/40 Meter Bands | eBay
472kHz.org
Getting Started on 630 metres
Notification Process for 630 and 2200 Meter band Operation – N4BFR Vision
Casella CEL 630.A Type 2 Ultra Wide Octave Band Sound Level Meter Kit
AC1CP Amateur Radio Band Plan
Lowdown 630-Meter Band Amateur Radio Antenna
630m Transverter
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
A Portable QRP CW Amateur Transceiver for 475 KHZ 630 Meter - Etsy
472kHz.org
