FPV video channels, RC control links, rocket telemetry, ISM band reference, Part 15 unlicensed operating rules, and the LoRa US915 channel plan.
5.8 GHz FPV Video Channels
Standard analog FPV video channel plan. In the US, most analog video transmitters aren't FCC Part 15 certified, so they're operated under an amateur (Technician) license in the 5650–5925 MHz amateur band. Channels below 5725 MHz or above 5850 MHz (much of band E, and R1) are outside the unlicensed band entirely. Certified digital systems such as DJI can be used without a license.
Band
Channel
Frequency
A
A1
5865 MHz
A
A2
5845 MHz
A
A3
5825 MHz
A
A4
5805 MHz
A
A5
5785 MHz
A
A6
5765 MHz
A
A7
5745 MHz
A
A8
5725 MHz
B
B1
5733 MHz
B
B2
5752 MHz
B
B3
5771 MHz
B
B4
5790 MHz
B
B5
5809 MHz
B
B6
5828 MHz
B
B7
5847 MHz
B
B8
5866 MHz
E
E1
5705 MHz
E
E2
5685 MHz
E
E3
5665 MHz
E
E4
5645 MHz
E
E5
5885 MHz
E
E6
5905 MHz
E
E7
5925 MHz
E
E8
5945 MHz
F
F1
5740 MHz
F
F2
5760 MHz
F
F3
5780 MHz
F
F4
5800 MHz
F
F5
5820 MHz
F
F6
5840 MHz
F
F7
5860 MHz
F
F8
5880 MHz
R
R1
5658 MHz
R
R2
5695 MHz
R
R3
5732 MHz
R
R4
5769 MHz
R
R5
5806 MHz
R
R6
5843 MHz
R
R7
5880 MHz
R
R8
5917 MHz
FPV Video Systems
Frequency
System
License
1.2 GHz / 1.3 GHz
Analog FPV video — long range, requires HAM license
HAM (Technician+)
2.4 GHz
Digital FPV — DJI O3/O4 (some modes)
None (Part 15)
5.8 GHz (analog)
Analog FPV — most common, bands A/B/E/F/R
HAM (Technician+) for most analog VTXs in the US
5.8 GHz (digital)
DJI O3/O4, Walksnail Avatar, HDZero
None (Part 15)
RC Control Links
Frequency
System
License
27 MHz
Legacy AM RC — oldest systems, now obsolete
None
72 MHz
Legacy RC aircraft band — now largely obsolete in US
None
433.920 MHz
ExpressLRS, TBS Crossfire — EU/international
None in EU (ISM); HAM license in US (70cm band)
868 MHz
ExpressLRS, TBS Crossfire — EU frequency
None (ISM)
900 MHz (915 MHz US)
ExpressLRS, TBS Crossfire — US/AU long range
None (ISM)
2.400 – 2.483 GHz
FrSky, ExpressLRS 2.4G, DJI RC link, Spektrum
None (ISM/Part 15)
5.725 – 5.850 GHz
Some 5.8 GHz RC control systems
None (Part 15)
Rocket Telemetry & Tracking
HAM band frequencies require a valid amateur radio license. ISM band systems operate license-free at legal power levels.
Frequency
System
License
144.390 MHz
APRS — US national frequency for position tracking
HAM (Technician+)
433.920 MHz
70cm amateur telemetry — Altus Metrum, TeleMega
HAM (Technician+)
434.000 MHz
70cm amateur tracking — common telemetry
HAM (Technician+)
900.000 MHz (ISM)
EggFinder, Featherweight GPS — no license required
None (ISM)
915.000 MHz
ExpressLRS / commercial telemetry — US ISM band
None (ISM)
916.000 MHz
EggFinder TX — dedicated commercial tracker
None (ISM)
2.400 GHz
Some commercial dual-deploy and flight computers
None (Part 15)
ISM Band Reference
Industrial, Scientific, and Medical bands. License-free operation at specified power limits under FCC Part 15 (US) or equivalent regulations.
Frequency
Max Power
Common Use
6.765 – 6.795 MHz
Varies
ISM — industrial heating
13.553 – 13.567 MHz
Varies
ISM — industrial, RFID
26.957 – 27.283 MHz
Varies
ISM — CB radio band overlap, RFID
40.66 – 40.70 MHz
Varies
ISM — wireless mics, some RC
433.050 – 434.790 MHz
10 mW ERP
ISM EU — RC, telemetry, keyfobs
902 – 928 MHz
1W
ISM US — LoRa, 900 MHz RC, tracking
2400 – 2483.5 MHz
1W (4W EIRP)
ISM — WiFi, Bluetooth, 2.4G RC, FPV
5725 – 5875 MHz
1W (4W EIRP)
ISM — WiFi 5 GHz, 5.8 GHz FPV
24.0 – 24.25 GHz
Varies
ISM — automotive radar, motion sensors
Part 15 Unlicensed Operation — Key Rules
Rule
Detail
License required
None — Part 15 operation requires no FCC license or user fee
Interference rule
Must accept any interference received and must not cause harmful interference to licensed radio services
Power limit (900 MHz ISM, FHSS)
Up to 1W conducted, up to 4W EIRP with antenna gain under §15.247
Power limit (2.4/5.8 GHz ISM, FHSS)
Up to 1W conducted, up to 4W EIRP with antenna gain under §15.247
Directional point-to-point links
Higher EIRP permitted with narrow-beam directional antennas and reduced power, per §15.247(c)
Equipment certification
Devices must be FCC-certified; substituting a non-approved higher-gain antenna can void compliance
Shared spectrum
ISM bands have no exclusive channels — WiFi, Bluetooth, LoRa, FPV, and RC systems all coexist without protection
LoRa US915 Sub-Band Channel Plan
LoRaWAN networks in the US divide the 902–928 MHz ISM band into 64 uplink channels of 125 kHz, grouped into 8 sub-bands, plus 8 wider 500 kHz uplink channels and 8 downlink channels. (ExpressLRS uses its own frequency-hopping plan, not this one.)