Simply put, Tvheadend will use the DVB card to scan for muxes on the wrong frequency. You'll either end up with very few services, or none at all. It'll automatically perform a scan based on your transmitter's frequencies and obtain its services.
This can take several minutes to perform, so give it a chance to complete. Note how "channels" haven't been mentioned yet. We're almost there. A service is an individual stream of data that is sent over a mux muxes have multiple services in them. A service can be many things - TV data, digital radio, text information - so in order for them to be usable, we need to map them to channels. This will take the raw service data and map it to each readable channel i.
Tvheadend's menu system is relatively simple to navigate. The master options are on the top row, changing the second row, which in turn changes the third row. By default, Tvheadend's menu is set to Basic. For the following steps it will be much easier if we expand this to Expert. If you live in an area where the signal of multiple transmitters overlaps and is within a fair range tolerance, you'll likely find that you pick up duplicate channels one for each transmitter.
Here you'll see the duplication if any. The first is from the Mendip transmitter in Somerset. The next two are likely from the Stockland Hill transmitter my closest one, and my preferred choice. This is generally down to preference - however a basic understanding of radio waves helps. Higher frequencies are able to transmit much more data than lower frequencies.
Unfortunately the trade-off for this is that it doesn't travel as far, meaning you won't receive higher frequencies if you're on the edge of your transmitter's range. So, if you're close to your transmitter relatively speaking , try keeping the higher frequencies ticked. If you're far away, favour the lower frequencies. You may suffer slight quality degradation but the signal will be much stronger. If you live in a valley or a heavily built-up area, you may find the lower frequencies better due to its ability to permeate more easily through solid objects due to the lower wavelength.
Likewise, if you live on the top of a hill, with clear line of sight in many directions, the higher frequencies will work just as well. Have a look at your area and see which frequency is best for you.
What TV stream is complete without a programming guide to go with it? The term "Internal" just means that it is something configured within Tvheadend itself. Each internal module requires configuration as they will be using different sources - you need to define which channels to get data for.
Before enabling an internal module, first click on it and make note of the Path: as you'll need it to run the following command:. Once this step has been completed, you can tick the Enabled box and Save. Do this for as many modules as you want. I only have one - "Over-the-air: UK: Freeview" - as it directly maps to the services I am interested in.
Different EPG grabbers will provide different channel data, so some may provide data for one channel, while others won't a good argument to have multiple modules enabled. This page can let you specifically choose which module sources are linked to which channels note the Path , Name and Channels headers :. The EPG is not live data. Read the below list right the way. Built-in cable TV splitter allows you to make one connection to cable TV.
For use in both full and half height PC's. Supports still image snap shot function in JPEG format. Supports scheduled recording and time shifting function to pause, rewind, fast forward, rewind to replay a TV scene or skip the commercials. Full-featured FM radio tuner built in so you can enjoy listening and recording favorite FM radio stations while working in computer. Advanced scheduling for automatic recording of any TV program on weekly basis or one-time only.
Supports snapshot function to take screenshots still pictures with ease. Converts analog video outputs from home AV devices to digital files. Supports Time-Shifting function to pause, rewind, and fast forward live TV, replay a scene or skip the commercials. The set of processing blocks described in [i. This expected topology is not obvious from [i. Finally, EN [i. Flexibility has been deliberately retained in [i. However, initial implementations are expected to use a small subset of the possible combinations and the present document gives some guidance on the choice of parameters.
Broadcasters and other users of the DVB-T2 system requiring some guidance on the choice of parameters should see clause 5. The simulated performance results given in clause 14 will also be of interest to such readers, as will clause 12 which will describe aspects of network planning.
Readers requiring a deeper understanding of the structure of the DVB-T2 signal should see clause 6, which explains the key concepts and framing structures used in EN [i. This clause should also be studied before the clauses relating to detailed implementation, since those later clauses assume a working knowledge of the concepts described in clause 6.
Many of the concepts, particularly the Interleaving Frame, are crucial to an understanding of the rest of the system. Clause 7 describes some typical network topologies and also introduces the DVB-T2 modulator interface T2-MI , which is designed to form the backbone of such networks; this is addressed both to network operators and also to implementers of T2-gateways and modulators.
Most of the remaining clauses are each aimed at implementers of a particular piece of equipment: the T2-gateway clause 8 , modulator clause 9 , receiver clause 10 , transmitter clause 11 , or tuner clause Whilst implementers should pay most attention to the relevant clause, receiver implementers in particular should consult clauses 8 and 9 in addition to clause 10 since some aspects of the signal that are addressed in connection with the generation of the signal are equally applicable to the corresponding demodulation process but are not repeated in the receiver clause.
Clause 16 discusses the T2-Lite profile and is a good starting point for readers who are familiar with DVB-T2 and would like to know about this new profile. The present document gives guidelines for the implementation of all aspects of the DVB-T2 end-to-end chain.
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