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terrykc · 2nd Sep 2018, 5:36 pm

Broadcast and European cable channels are IRC - Incrementally Related Channels whilst UK cable channels are HRC - Harmonically related channels.

From memory, this allows amplifiers to have a 3dB higher output level.

2nd Sep 2018, 5:36 pm	#13
terrykc Rest in Peace Join Date: Nov 2010 Location: North Hykeham, Lincolnshire, UK. Posts: 515	Re: Unknown Frequency Settings On Modulator Broadcast and European cable channels are IRC - Incrementally Related Channels whilst UK cable channels are HRC - Harmonically related channels. From memory, this allows amplifiers to have a 3dB higher output level.