Disclaimers:
| Frequencies | Segment/Net name | Mode | Comments | Website |
| 50-50.1 | CW | CW | ||
| 50.01-50.3 | SSB | SSB | Europe | |
| 50.058 | FISTS | CW | http://www.fists.org | |
| 50.06-50.08 | Beacons | CW | ||
| 50.1-50.125 | DX Window | Other | Mixed CW/SSB | |
| 50.1-50.3 | SSB | SSB | ||
| 50.11 | DX Window | Other | DX Calling Frequency. CW/SSB. Once you establish a QSO, please move off this frequency. | |
| 50.125 | SSB | SSB | Domestic calling frequency. You CQ there for US/US QSO's - once established you move up the band to continue. | |
| 50.16 | Radio Scout Frequency | SSB | http://home.tiscali.nl/worldscout/Jota/frequencies.htm | |
| 50.16 | Radio Scout Frequency | CW | http://home.tiscali.nl/worldscout/Jota/frequencies.htm | |
| 50.1625 | HFPACK | SSB | USB - Portable Calling Frequency - Mobile- Portable - Base - Marine - Aero - HFpack | http://hfpack.com |
| 50.1625 | ALE | Other | ALE Voice, Data. Amateur Radio ALE is USB standard Automatic Link Establishment 2.2kHz Bandwidth | |
| 50.215-50.25 | JT6M | Digital | EUROPE JT6m (Center 50.230) | |
| 50.25 | JT6M | Digital | Calling Frequency for JT6M (Weak band enhancements) | http://www.qsl.net/digitalonsix/ |
| 50.255-50.285 | Digital | Digital | FSK441 & JT6M meteor scatter | http://www.qsl.net/digitalonsix/ |
| 50.26 | FSK441A | Digital | Calling Frequency for FSK441A (Meteor Scatter Contacts Only) | http://www.qsl.net/digitalonsix/ |
| 50.29 | Digital | Digital | Calling Frequency for PSK31 and Hell modes | http://www.qsl.net/digitalonsix/ |
| 50.29 | MFSK16 | Digital | http://kf4houtn.tripod.com/snddigi.htm | |
| 50.292-50.2925 | Olivia | Digital | OLIVIA CALLING FREQUENCY - Dial_Frequency=50291.5kHzUSB - Audio_Center_Frequency_750Hz - Olivia_Format=500/16 [Region 2] | http://groups.yahoo.com/group/oliviadata/ |
| 50.3 | Digital | Digital | Operating Frequency for RTTY and MFSK | http://www.qsl.net/digitalonsix/ |
| 50.3 | rtty | Other | Digital On Six (DOS) | http://www.ykc.com/wa5ufh/DOS/index.html |
| 50.4 | 6M AM calling | AM | Mainly Saturday night 6M AM NY / PA round table talks. Anyone with 6M AM anywhere can join in. | |
| 50.62 | Packet | Digital | Digital (packet) calling | |
| 50.8-51 | Remote control | Digital | 20-kHz channels | |
| 51-51.1 | DX Window | CW | Pacific DX window | |
| 51.12-51.18 | Repeater inputs | Digital | Digital repeaters | |
| 51.12-51.48 | Repeater inputs | AM | 19 channels | |
| 51.62-51.68 | Repeater outputs | Digital | Digital repeaters | |
| 51.62-51.98 | Repeater outputs | AM | 19 channels | |
| 52-52.48 | Repeater inputs | AM | ||
| 52.02 | FM Simplex | FM | ||
| 52.04 | FM Simplex | FM | ||
| 52.5-52.98 | Repeater outputs | AM | ||
| 52.525 | FM Simplex | FM | Primary FM Simplex | |
| 52.54 | FM Simplex | FM | Secondary FM Simplex | |
| 53-53.48 | Repeater inputs | AM | ||
| 53.5 | Remote control | Digital | ||
| 53.5-53.98 | Repeater outputs | AM | ||
| 53.6 | Remote control | Digital | ||
| 53.7 | Remote control | Digital | ||
| 53.8 | Remote control | Digital | ||
| 53.9 | FM Simplex | FM |
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