Freeview is always opening, closing or shifting channels.
Perhaps you did not retune your Talk Talk box and with the new 5000T box being newly tuned you are
now seeing the differences.
If you did an auto tune on the 5000T the box would have picked up signals from your nearest transmitter and
possibly any transmitter(s) slightly further away. This can lead to the channel order being slightly jumbled and
some channels appearing I'm the 800's.
I always do a manual tune so the box is only receiving from one transmitter with the strongest signal.
Click here, https://www.freeview.co.uk/corporate/detailed-transmitter-information
Enter your postcode and house number, press check.
The next page willl show a table of 'most likely transmitter' and alternative transmitters.
Below that will be Coverage Prediction.
The below tables will show transmitter information including the channels/ multiplexes (mux) it broadcasts.
Select which transmitter is nearest to you or which you are in clearer sight of.
(my nearest transmitter is 17 miles away but my house has a clearer path to a transmitter 40 miles away
and that is what I tune to)
In the table you will see an N in a black circle, the number under that is the mux number.
Each mux carries several TV channels and/ or radio broadcasts.
Please make a special note of the mux under the BBC B label this is the mux that carries the HD broadcasts.
Now manually tune your 5000T.
Disconnect the aerial from the box. With the aerial out do an automatic tune, this will clear the channels from the box.
Connect the aerial.
Navigate through the Settings to Manual Search.
At Channel enter one of the muxes you want to search for, press search.
Once the mux has been searched press Save. Do the same for each mux.
All SD muxes should be done with the Transmission field set to DVB-T,
for the HD mux Transmission should be set to DVB-T2.
The Strength and Quality meters will let you know if the mux chosen is receiving a signal.
In general the Strength should be below 100%, if the strength is too high this can cause drop outs and pixellation of the broadcast.
If the strength is 100% and causing signal interruptions you may find an attenuator (variable) of benefit.
They are quite cheap, you just plug the aerial cable into the attenuator and then have another aerial cable connected to the attenuator
then to the box. Use the potentiometer on the attenuator to reduce the signal strength to 90-95%.
| Sun 29 Jan 2023 8:24:20
#4 |