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What is the maximum cable length between the Action Cam head and recorder?

The maximum cable length between the Remote Head and Camera Control Recorder is limited by the signal attenuation and the conductor DC resistance of the cable.

 

Maximum cable length as limited by signal attenuation (rule of thumb):

Max. cable length = 25 dB / attenuation at 1.5 GHz

 

Maximum cable length as limited by conductor DC resistance (rule of thumb):

Max. cable length = 8 Ω / conductor DC resistance

 

Example calculation for Belden 1505F Flexible cable:

– Nom. attenuation at 1.5 GHz: 13.300 dB / 100 ft

– Nom. conductor DC resistance: 12.2 Ω / 1000 ft

 

Max. cable length = 25 dB / (13.300 dB / 100 ft) = ~188 ft (57 m)

Max. cable length = 8 Ω / (12.2 Ω / 1000 ft) = ~656 ft (200 m)

 

The lower of the two values determines the approximate maximum cable length, in this example 188 ft (57 m).