May contain traces of nut
Glossary (click)I don't know what a Mux or LCN is
WebIF >> Diagnostics >> Mux Info will tell you what your tuning is, and which services are on what mux. This is basic stuff.
Logical Channel Number - These are the "channel numbers" that you find allocated to the services on your digital TV / set-top box (including the Humax) - for example: "1" gets you BBC1, "9" is BBC FOUR, "12" is Dave and so on.In the days of UHF analogue TV, UK TV transmission frequencies were given channel numbers from 21 to 69 (each 8MHz apart starting from channel 21 = 471.25MHz), and the broadcast stations (from any one transmitter) had a whole channel each. To get universal coverage across the UK requires lots of transmitters, and because neighbouring transmitters would interfere with each other if they were on the same frequency (even if transmitting the same station on that frequency) different channels have to be allocated to the same station from different transmitters, so ultimately five TV stations were the most that could be fitted into the UK coverage (BBC1, BBC2, ITV, Channel 4, Five).DVB (Digital Video Broadcasting) replaces the analogue one-station-per-broadcast-channel with a digital data stream on each broadcast channel, and similar conditions apply to interference from adjacent transmitters but now there are up to six "multiplexes" from each transmitter, broadcast on similar channel number allocations as before. However, inside each multiplex (or "mux") the data stream has sufficient capacity for about 10 StDef TV stations (more if they time-share) plus many audio-only and text services, or 4 HiDef TV stations.This is where the LCN come in. Each service across all the multiplexes is allocated a unique LCN, and this is the position on the digital TV's "tuning dial" where the service will be found - regardless of what region you are in. The LCN information is embedded in the data stream, so when the TV or set-top box tunes itself in BBC1 is always on 1, Dave on 12, and so on.Disambiguation: To avoid confusion, I recommend the following usages: 'Channel' should refer to the frequency used for the transmission; 'Station' or 'Service' should refer to an individual TV, radio, or text feed within the digital multiplex ('service' is the industry standard); and 'LCN' is the number you have to dial in to the TV/STB to receive a particular service.
The point about digital transmission, be it terrestrial or satellite, is that a number of services can be transmitted on one frequency (instead of the old days of analogue, when only one service occupied the whole of the frequency). The process of sharing multiple data streams over one transmission channel is called "multiplexing", and a transmission channel carrying multiple services is called a "multiplex" (abbreviated to "mux"). See also LCN.