No signal message

frankmulveen

I installed saorview a couple of months ago and received all stations no problem.
This morning 16 nov when I turned on the tv I got NO SIGNAL message. Nothing was disturbed. Can anyone shed any light? I used a Triax TR112 box. I also have a masthead amplifier installed. Could this be now a problem e.g. 4G?
Thanks.

The Cush

frankmulveen wrote: »

I installed saorview a couple of months ago and received all stations no problem.
This morning 16 nov when I turned on the tv I got NO SIGNAL message. Nothing was disturbed. Can anyone shed any light? I used a Triax TR112 box.

Could the local transmitter be down for maintenance? Do you know which transmitter you receive your TV signal from?

TPM

you may just need a retune a few transmitters have been changing frequencies Mt Leinster were one and Clermont I think

The Cush

TPM wrote: »

you may just need a retune a few transmitters have been changing frequencies Mt Leinster were one and Clermont I think

That happened over a week ago, no changes since. Gone since this morning according to the OP.

TPM

The Cush wrote: »

That happened over a week ago, no changes since. Gone since this morning according to the OP.

Ah ok my mistake, I thought they were turning the new ones on a week ago and the old ones off this week.

winston_1

frankmulveen wrote: »

Could this be now a problem e.g. 4G?
Thanks.

There is no 4G on air in the 800MHz band in the UK or Ireland. Please don't start blaming 4G for every fault that occurs especially when it is not on air.

frankmulveen

TPM wrote: »

you may just need a retune a few transmitters have been changing frequencies Mt Leinster were one and Clermont I think

I did a retune yesterday evening and all stations came back. Cheers. I live in county Galway so I presume I get my signal from Maghera??
Should I get rid of my masthead amplifier?
I think I read somewhere it would become a problem when 4G goes live?

Peter Rhea

If you need the amplifier to get a strong enough signal to your receiver(s), how will you do without it?

Adopt a 'wait & see' approach with 4G. Why would you take steps at this stage to alleviate a problem that might never arise for you?

frankmulveen

Peter Rhea wrote: »

If you need the amplifier to get a strong enough signal to your receiver(s), how will you do without it?

Adopt a 'wait & see' approach with 4G. Why would you take steps at this stage to alleviate a problem that might never arise for you?

Cheers Peter. Thanks to all for their help.

The Cush

frankmulveen wrote: »

I did a retune yesterday evening and all stations came back. Cheers. I live in county Galway so I presume I get my signal from Maghera??

Transmitters occasionally go offline for maintenance or because of a technical fault, if maintenance related they normally resume service by 5pm.

frankmulveen wrote: »

Should I get rid of my masthead amplifier?
I think I read somewhere it would become a problem when 4G goes live?

As Peter says above adopt a wait and see until 4g transmitters go live. Aerials with masthead amps close to 4g transmitters are expected to particularly affected. Urban area 4g transmitters will probably go live first.

For those affected a few solutions will be available such as the removal of an existing wideband masthead amp that was installed for analogue reception but may not now be required for DTT and could be replaced by an internal distribution amp. Other solutions could be to replace a wideband aerial with a grouped or reduced band aerial, reduced band masthead amp or LTE filters.

The next public information campaign we'll see from RTÉNL/Comreg/Dept will be how to eliminate 4g interference to broadcast TV reception. They have already published some information related this

From the Dept

Mast Head Amplifiers
Installations which use a mast head amplifier for TV reception (irrespective of the frequencies to be received) will most likely need a filter. This is because mast head amplifiers are prone to an "overload" condition if the signal level from either DTT or other sources (on frequencies either above or below the TV signal) is very strong. In these overload conditions unintended signals called “intermodulation products” can be radiated causing interference to other users of the spectrum.

Mast head amplifiers should only be used for reception of DTT where there is a clear need to do so. Excessive amplification of a DTT signal can cause set top boxes to appear not to be able to decode the DTT service.

Comreg

To remove this disruption to TV reception, consumers can take one of two measures:

1. Remove the masthead amplifier. This will allow SAORVIEW services to be received without degradation of picture quality. In Ireland, SAORVIEW reception has been planned without factoring in the use of amplifiers so it should not be necessary to use amplifiers in the vast majority of cases.

2. Only where absolutely necessary, have a suitable filter added between the television aerial and the masthead amplifier. This will prevent unwanted nearby signals, such as LTE, other 4G mobile phones, TETRA and private mobile radio from overloading the masthead amplifier. It should be noted that all filters placed in a television system must be placed before amplification and that placing a filter after a masthead amplifier will not improve television reception.

RTÉNL

The spectrum used for wireless services is becoming more and more congested. This includes the radio spectrum used for television broadcasting which is reducing. As different services are moving closer and closer together cross service interference becomes more of an issue. If you are doing work, or having work done on your television aerial, RTÉNL recommend that you ensure that the aerial is restricted, in so far as is possible, to the television broadcast band only (UHF channel 21 to 60). To protect your television services against interference into the future frequencies / channels above and below this should be filtered out.

frankmulveen

The Cush wrote: »

Transmitters occasionally go offline for maintenance or because of a technical fault, if maintenance related they normally resume service by 5pm.



As Peter says above adopt a wait and see until 4g transmitters go live. Aerials with masthead amps close to 4g transmitters are expected to particularly affected. Urban area 4g transmitters will probably go live first.

For those affected a few solutions will be available such as the removal of the an existing wideband masthead amp that was installed for analogue reception but may not now be required for DTT and could be replaced by an internal distribution amp. Other solutions could be to replace a wideband aerial with a grouped or reduced band aerial, reduced band masthead amp or LTE filters.

The next public information campaign we'll see from RTÉNL/Comreg/Dept will be how to eliminate 4g interference to broadcast TV reception. They have already published some information related this already

From the Dept


Comreg


RTÉNL

Thanks for the info Cush. I knew I read something like that before. If I get problems when 4G goes live I'll remove the MHA.

Regards,
Frank.