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The units refs. 7310, 7311, 7328 do not keep the memorised channel in the assigned channel. Because of this, I now receive noise or another channel where there should be a memorised channel.
-->The reason for this is that the channel was memorised with the AFC on (Automatic Frequency Control).
The solution consists in reprogramming the channel with the AFC disabled.
Once it is reprogrammed, switch the AFC back on again.
The enabling and disabling of the AFC is carried out in the installation menu.
The receiver ref. 7243 produces a flickering effect on the screen menu and in the tuned channel.
However, the channel frequency is correct, as the best tuning point has been searched for.
Domestic receivers that feature video switching (*) generate picture flickering when the signal received is near the quality threshold (c/n ratio).
The solution is to:
Improve the c/n ratio by checking the installation:
(*) Those that display a coloured background instead of grain when there is no signal
In a domestic satellite TV installation , there is some distortion on the TV screen.
Using the tuner that is incorporated in the field strength meter, it is possible to verify the reception of the satellite channel.
Why is there this picture distortion?
The receiver incorporates an active stage in the terrestrial antenna input.
If the signal level of the terrestrial channel is too high, the saturation at this stage causes this problem.
You can check this by verifying the picture quality when you unplug the terrestrial antenna cable.
The solution is in the attenuation of these signals.
Can I use the receiver reference 7235 for free-to-air channels for NTSC satellite transmissions?
Is it possible to use a mobile antenna as a base station?
The main difference between base station antennas and mobile ones is the ground plane implementation.
The ground plane of a mobile antenna is configured by the metallic structure of the car where it is installed.
When this kind of antenna is used as a base station antenna, the ground plane has to be substituted with a similar element.
By doing so, their VSWR adjustment improves and the radiation pattern of the antenna will keep its shape.
How do UHF-VHF dual band antennas work?
A dual band antenna is designed to be tuned to more than one frequency submultiple.
For example, the antenna ref. 6541:
I just bought a satellite receiver type RSD 7255.
It is working perfectly, and I get both Astra and Hotbird.
However I bought an Astra receiver because as I am of Dutch origin, I wanted to receive all the Dutch programs: Netherlands 1, 2 and 3, as well as RTL4, and eventually some more.
But these programs are scrambled!
I emailed Astra, and they tell me that I have to buy a Dutch receiver with a smartcard.
How can I put a Dutch smartcard into your receiver?
Do you have any other suggestions as to how I could receive these Dutch programs?
Televes sells two different types of digital receivers.
If you want to watch Pay-TV you need a digital satellite receiver with Common Interface, for example ref.7254.
To be able to receive Pay-TV channels you will need a CI (Common Interface) module and a smartcard from the service provider of your choice (the service provider is the distributor of the channels).
CI modules and smartcards are licensed to service providers.
If you are subscribing to services from more than one service provider, you might have to change between different smartcards, or even different CI modules.
Diferencias entre una Antena Activa y una Antena Boss Tech
How can one of the headend channels be suppressed in one downlead, but still remain in the other downlead?
Through the use of an adjacent channel combiner ref. 5254.
This element permits a current DC bypass between its inputs, but still maintains a high isolation for the radio frequency
To further suppress the channel in the corresponding downlead, the notch filter ref. 4162/72 can be used.
This device cannot only eliminate one channel, it can also eliminate any channel or channels that are connected to the inputs of the adjacent channel combiner.