KA7OEI's blog: KA7OEI now QRV on 630 and 2200 meters
US Amateur Radio Bands: Frequency Charts
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
2200m Archives • AmateurRadio.com
472kHz.org
2200 and 630 Meters
New 630-Meter Band Reported “Very Busy”
Ham Radio - The 630 meter CW transmitter part 4. It's done and it works! - YouTube
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630 meter band: i1wqrlinkradio.com
Meter WSPR Beacon Transmitter
630 meters Ham Radio - Old is New, Again - Making It Up
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Antenna 630m VK2DX
2 More Ham Radio Bands, 630 meter / 2200 meter Amateur Radio - YouTube
472kHz.org
Amateur Radio Activiy on the 630 meter band (Medium Frequency)
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
630m Transverter
Hams Map Powerlines for Low Frequency Interference | QRZ Forums
KA7OEI's blog: A transmit converter (and amplifier) for 630 and 2200 meters
Getting Started on 630 metres
Lowdown 630-Meter Band Amateur Radio Antenna
Antique Radio Forums • View topic - 630 meter (472-479 kHz) Amateur Band
