When we broadcast a signal, some of it disappears off into space and is lost. If you are using a portable radio, it may be necessary to move this to a different position in the room. The same is true for Radio 4 LW on DAB. For more information see our effect of tropospheric ducting on Freeview help guide. The best place to put a DAB aerial is on the roof of the car and as far from the engine as possible, to avoid any interference. However, if the original light used a transformer, rather than directly running off the mains, it is possible the transformer is causing the interference. If all other stations on the same DAB multiplex are working ok and you have just lost one station, this is not due to interference. If reception improves a better quality or external aerial may help. The effect that causes radio signals to travel further than normal is known as tropospheric ducting. There is nothing anyone can do about this and the only answer is to wait for the weather to change. Many Digital radios have a signal strength display which enables you to position the Radio for the best reception (usually a number of blocks) as a guide of reception quality. This is a high-pitched whine that will rise and fall in a regular pattern. You will, however, need to have a suitable postcode of the area you are having problems in to see what the radio coverage is in that area. is a recognised trade body which will be able to put you in touch with one of their members in your area. There is a very small chance that 4G signals will affect your television reception as they use frequencies that are close to those used by Freeview television. For reception type symptoms use the step by step guide to help troubleshoot problems with DAB radio or use the Problem Assistant. Is it happening every day? If this does work, it could mean your appliance is faulty and could be causing interference. If one of these stations can be received with a good signal but soon goes ‘off air’ there could be a problem with the radio. However, if you don’t have this feature – look for the digital tick – then, unfortunately, it looks like you may have to upgrade your radio. However the CAI (Confederation of Aerial Industries) is a recognised trade body which will be able to put you in touch with one of their members in your area. Check whether there are any known works or warnings that may be causing the problem. If neighbours have the same problem, it may be with the communal aerial, or possible interference. This usually happens in warm fine weather, where atmospheric conditions cause television signals to travel much greater distances than they normally would. For information on the symptoms of interference see our, We cannot recommend individual Installers. A television signal will always lose some of its strength as it passes along the cable and through the connectors. Please see our Freeview Installation guide for further details. The problem could be due to a number of reasons, the station may have stopped broadcasting or have moved multiplexes rather than a radio fault. For more information see our what do filters do help guide. If the thermostat is faulty, it can sometimes interfere with your television or radio. For example, phone chargers or dash cams sometimes cause interference and affect your radio signal. We cannot recommend individual installers. We find that most cases of interference are caused by electrical devices inside or nearby your home. This may mean an electrical item in your home or nearby, is interfering with the reception of your FM radio and is causing the buzzing, clicking or pops you can hear. This is causing the buzzing, clicking or pops sounds you can hear. Use our transmitter tool to see the status of your local transmitters and also to see whether you are in a good DAB reception area. 1/25/2017. A qualified aerial installer with local knowledge will be able to advise further. It is important to check your installation is working properly and that your radio is in the best possible position. The 5 Live Sports Extra schedule is available online, and Radio 4 LW on DAB, broadcasting Yesterday in Parliament, along with the Daily Service each day on their respective websites. Please use our Transmitter tool to see if you are in coverage. For more helpful information please see our, Your aerial should be as high as possible pointing towards the transmitter with the best signal. With all of these potential causes, it is worth keeping a log for at least two weeks to determine whether there are any patterns or trends to the interference. You can find other common sources of interference in our individual, If your problem is caused by interference, your landlord or property manager can contact the regulator, Ofcom, for help. If you are using a portable radio with a telescopic aerial make sure it is fully extended, you may also need to tilt or swivel the aerial to get the best reception. We have a basic installation guide to help you with this. The aerial and cables need to be well maintained and you will need a radio that has an option to connect an external aerial. This may mean some viewers will lose some TV services, or need to repoint/change their aerial. Try changing the frequency band to AM and see whether the problem is still there and is it worse? DAB radio problems in the car can have several causes. If you find a regular pattern and it is occurring to all stations and your television, there may be a source of interference nearby or within your own home. Please see our help page to see how DAB multiplexes work, Therefore, you may not be receiving this service, as there is not a commercial DAB service in your local area. Keeping a note of when each lamp comes on and goes off will help to identify whether this is the cause of your interference. To rule this out see our guide on, A manual retune is more effective than an auto-retune as it only tunes your television to the transmitter your aerial is pointing towards. All TV reception predictions assume an outside aerial at a height of 10m from the ground. If it stops you may have to repair or replace the thermostat. Further information on tuning your DAB radio can be found by visiting the, It is important to check the cables and the aerial for damage and that they are operating correctly. Our troubleshooting DAB interference help guide is a good starting place, or you can use our problem assistant tool. Your television can sometimes receive signals from more than one transmitter, which may be transmitting different regional news. Enter your full postcode for details of which DAB digital radio stations you're likely to receive. For more information on interference, please see our RTIS site. Use our transmitter checker tool to see the status of your transmitter. You may need to contact your car manufacturer to check. There is nothing than can be done the problem will go away when the weather changes. Its technical name is multipath distortion. Radio 4 LW normally broadcasts Yesterday in Parliament, The Daily Service and the Shipping Forecast each day. As a rule of thumb b urbling noises and breakup on DAB are normally reception problems due to a weak signal, but they could also be linked to some sort of interference. However the CAI (Confederation of Aerial Industries) is a recognised trade body which will be able to put you in touch with one of their members in your area. If you are using a satellite dish to receive your television, you will also need to check the LNB and cap for any signs of water damage. Ensure there is nothing in front of the aerial that could block the signal, such as trees. DAB Just tune your Digital Radio (DAB) to LBC. The explanation: when you plug in a pair of headphones, the speakers will be... - Roberts Ecologic 4 DAB radio There is nothing that can be done and the problem will go away when the weather changes. All of the stations in one multiplex should be behaving the same way. These signals can be both UK and foreign stations. Street lamps can sometimes cause buzzing and crackling sounds. Then enter your address details and the tool will find your local transmitters and check for problems in your area. See our, We cannot recommend individual installers. Use the list of symptoms below as a guide to help you identify a possible interference source: This effect happens in bursts of a few seconds at a time and is due to central heating thermostats. An electric motor is used in many appliances such as electric lawnmowers, washing machines, drills and hairdryers etc. It has also been known for the engine management system (EMS) to cause problems. This is why you can often hear radio stations from outside the UK at night. Turn the radio onto FM and walk around with the radio and see whether the reception gets worse near certain electrical items in the home. This may be due to old or faulty leads to the spark plugs and can be characterised as clicks or cracking sounds. Further information can be found on our ways of tracing interference to radio reception help guide. If neighbours are having the same problem it may be that the aerial itself is at fault, or there may be an interfering signal. ... the main problem is bandwidth. Further information can be found on our help guide on receiving television through a communal aerial. Many people are now using low power LED lights instead of the more traditional varieties. There is nothing that can be done and the problem will go away when the weather changes. For example all the cables between your television equipment and aerial are connected securely and none is damaged. If you know your location, you can use our, If you are having continuous reception problems. Use the, These are not recommended unless absolutely required as they can introduce unexpected reception problems. If the problem persists when you turn the heating system back on, the problem could be with the thermostat, which may need to be repaired or replaced. For more information on finding and storing these services, see our Help guide on DAB secondary services. For hi-fi systems check your aerial isn’t broken or become loose. All of the stations in one multiplex should be behaving the same way. The first step in troubleshooting your problem is to rule out common problems and decide whether it's a reception or interference problem. For more information see our guide on. An electric motor is used in many appliances such as lawnmowers, washing machines, drills and hairdryers. This means your radio is able to receive more radio channels either using the same frequency as the service you are listening to or adjacent to that frequency. If the hissing or fading is more obvious when it is raining, the rainwater might be getting into the external aerial down-lead. There are a number of things you can do to check for interference: The most common source of interference to DAB is from LED lights. Attenuators are always a compromise and should only be used if absolutely necessary. Please be aware most local news is not currently broadcast in HD at this time so will not be available on HD channels. Make sure any cables between your radio equipment and aerial are connected securely. To rule out any reception problems within your property see the. Check your radio manual for specific instructions on doing a full re-scan. Tilting and swivelling the aerial will help to get the best signal. Secondly, If you are in a good coverage area, and are still receiving poor DAB reception please try our Problem Assistant for further advice. When travelling in the car, your signal can be affected by natural features of the land, for example, hills, valleys, rivers, etc. This is because the transformer would have been designed to operate at the higher power and not the lower power the LED lights use. This can have a negative effect on an SFN and result in burbling noises or break-up of the audio. Digital Audio Broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services in many countries around the world but not in North America where HD Radio is the standard for digital radio.. The BBC network stations, e.g. It is important to check that your installation is intact. As a rule of thumb hissing, fading and distortion are not interference and could indicate reception problems. Some amplifiers are a mix of the above. Use our transmitter tool to see whether your local transmitter is currently affected by maintenance work. For more information, please visit our page on how weather can affect your Television and Radio reception. If this does not help use the 'autotune' function to reinstall the stations into the memory or talk to your dealer or manufacturer. If the problem continues you may need to repair or replace the appliance. If you are hearing a hum it is often linked to an issue with your mains adapter. You may need to consider a loft or external aerial to solve your reception problem. Note when the nearby lamps switch on and off and compare it with when you experience the problem. If you have bought a new car, the DAB radio may be tuned to DAB stations in a different location. Weather-related problems tend to happen mainly in the summer, when high pressure can cause a radio signal to travel further than it would normally. Typical causes of interference to a communal aerial are faulty heating thermostats or a poorly suppressed lift motor. If you have a relatively new car, the radio may have been tuned to DAB stations in a different location. The cause is an atmospheric effect known as Sporadic-E and can last from a few seconds up to an hour or more. Windowsills and high shelves are a good position for the radio. A faulty motor can cause electrical interference. If you find a regular pattern and it is happening to all channels and to your FM radio, there may be interference. To turn AD on or off, press AD on your remote. An exception is "helically wound" FM aerials. This means you’ll often notice a delay when watching live programmes. DAB radio in the UK is badly broken and needs fixing. It can be found next to Radio 4 on the list of stations. For more information on how to retune manually see our manual re-tuning page. If you can’t locate the problem you may wish to speak to neighbours to ask them to do the same as the problem could be located in their home. To improve on this figure, broadcasters would need to increase the number of transmitters drastically and build a much denser network. If so, and it’s in your own home, move the radio away from the appliance. For reception-type symptoms use our guide to troubleshoot problems with MW/LW reception or use the  Problem Assistant. block or interfere with television signals from local transmitters, or the links between transmitters. If the interference changes with engine speed it is most probably the ignition system causing the issue. This could be unwanted signals and result in picture loss on your own television and, maybe, those living nearby. If you find water damage then it is likely that the cable will need replacing by a qualified aerial installer. This will help you to see if there are, or have been recently, transmitter faults in your local area. It can also cause a crackling noise which is worse on MW and LW than FM. If this distant radio signal is on the same frequency as the one you are listening to it can cause a reception problem. The way to turn traffic announcements on and off on varies between radios. In most circumstances the supplied telescopic aerial should be perfectly adequate, and as a rule of thumb DAB aerials tend to work best when vertical and extended at least 35 cm. If you are using an external aerial, check whether the problem affects all radios connected to that aerial at the same time. From Monday 7th December, BBC Radio Bradford will be available to listeners on 774kHz medium wave. Use our, interference caused by lighting help guide, step by step guide to help troubleshoot problems with DAB radio. Interference to MW or LW reception in a car can sometimes happen when the engine is running. Further information is available in our Freeview installation guide. . This may be fine during the day, but in the evening, signals from distant transmitters can travel further, and can cause reception problems for those at the very edge of coverage. If using a hi-fi with a wire aerial, again extend as much as possible to get the best signal. See our guide on Buzzing and Clicking. In some urban areas Pirate Radio can be a problem. The transmitter tool can only show faults with BBC services. Damaged cables can cause reception problems and can allow water into your installation. BBC News HD, BBC Four HD and CBeebies HD are broadcast using capacity on commercial multiplexes. . As the aerial is directional, by simply turning the radio you will be able to get the best reception. See our. This is because the transformer would have been designed to operate at higher power and not the lower power used by LED lights. If it is potentially interference, your landlord or management committee can contact the regulator, Ofcom, for help with solving the problem, Following a decision by the Government, some channels used by Freeview, are being reallocated to allow for the future development of new mobile broadband services. A high pitched whine associated with engine speed could mean the alternator is not suitably suppressed. If this does not work, a full re-scan might be needed. Use our transmitter tool, which will tell you what national and local DAB services are available in your locality. This is similar to Radio 4 LW on DAB, which can be found next to Radio 4 on the list of stations. Radio 5 Live Sports Extra has a dynamic schedule. FM Tune into 97.3 FM throughout London and the surrounding areas. By using our Transmitter Checker, you can check which DAB radio services are available at your location. If you can’t locate the problem you may wish to speak to neighbours to ask them to do the same as the problem could be located in their home. We use the RDS to ‘tell’ your radio if there is a better or stronger frequency for the radio service you are listening to, as you travel around. Rule out Reception problems . Virginia Ford: Hi Virginia,i have also lost all DAB sussex stations they have messed up the frequencies on these DAB. We advise you check that your antenna is able to receive DAB, in the majority of cases you will need a new antenna. Try moving the radio or tuning to a different frequency. That’s because they are so used to that trademark hiss and crackle of FM radio interference. Portable radios should be tuned in a location in your home where the best possible signal is received. Firstly, you may have a poor aerial system, so we recommend you checking over your installation by reading our Good installation help guide. Check you car manual for yours. Try moving the radio around to see if you can find a better position where you get good reception of all the stations you want to listen to. Just had the Yaris in at the dealers today to try and sort this DAB radio list problem I've been having. Check cables and leads within your property to ensure the problem is not a simple installation fault. To find out if a particular switch is causing the problem, try turning the lights off one at a time. For programmes which are pre-recorded, we create the subtitles in advance. Make sure you are tuned to the best frequency for your area, as you can often pick up more than one signal. If the transmitter is on reduced power or undergoing any transmitter maintenance work, this can cause hissing or fading. A good amplifier should have a filter built in that only allows the signal you want to be boosted and not any unwanted signals. The transmitter tool can only show faults with BBC services. The first thing to do is to swap any interconnecting leads. Most DAB radios can be tuned easily at the touch of a button. For reception-type symptoms use our. Each DAB multiplex is broadcast using a specific frequency and the transmitters used by that specific DAB multiplex all use the same frequency. Please see our help guide on a manual retune. Find the cable that goes from your aerial or satellite dish into your television, radio or set top box and unplug it. Does the problem happen when a lift is in use? Therefore at these times, you can then receive different television services that are using the same frequency. There are all kinds of aerials available on the market and some which are specific to certain frequencies. Use the list of symptoms below as a guide to help you identify a possible interference source. It is important to find the cause of the interference as there are a number of filters available to you. A portable battery powered FM/AM radio is a great tool to use to track down interference. The. Since we cannot control the weather, we have no influence over abnormal propagation through the troposphere, and it is only practicable to plan a network where interference is suffered no more than 1% of the time. For example you receive one signal directly from the transmitter and another is being reflected off a nearby hill. These fit directly under an outside aerial and usually the best type of amplifier to fix weak signals. Ensure your radio is correctly tuned-in, and check that your batteries are in good condition, or use mains power. It may take a little trial and error to find the most suitable one for your installation, and it is worth taking the advice of a local aerial contractor to select the correct one for the installation. As a result this can. To get the best reception extend the aerial fully and move the aerial and radio around until you get the best reception. An electric motor is used in many appliances such as electric lawnmowers, washing machines, drills and hairdryers etc. Before we give it to her, we decided to test it and make sure it could receive DAB, however upon doing a scan, the radio reported 'No Signal'. Contact the council if you spot any. When the problem happens, does it affect all stations? If so what does the problem sound like? Radio signals can be affected by fine weather including high pressure. It will carry BBC Radio Bradford’s programmes between 6am until 2pm, with Radio Leeds continuing to be broadcast on this frequency outside these times. My Internet Radio is not There can be a number of reasons for this: connecting to my wireless network. The first is a fault with the local FM transmitter. The two that are usually blamed are radio amateurs / CB enthusiasts and digital communications (TETRA). To see what is available when, the BBC keeps a schedule on the sport website. To rule out any reception problems within your property see the BBC Reception Advice site to check for any installation faults. (plug in a known good pair of headphones and try) If the answer is yes, try plugging in and unplugging the headphones briskly, a few times. How to re-tune your DAB digital radio to listen to talkSPORT and talkSPORT 2 The easiest way to get the live sport you want on DAB digital radio. You can use a portable radio to help identify interference to your radio service. For more information see our guide on, If you normally can receive a service, but you are now finding it is fading, or you can hear hissing, this could be down to one of three things. This can also happen with the television relays in our transmitter network which receive their signal from another transmitter. You may need to check that all parts of your receiving system are fully earthed. Broadcasters share the airwaves with a number of others who either have a licence from Ofcom to use certain frequencies or can use a limited number of unlicensed frequencies. Therefore it is important to minimise the loss by using good quality cable and connectors. For help with other services,such as Satellite, use the Problem Assistant or try our Help Guides. If you can hear breakthrough on your equipment you may be able to fit a filter to help with the breakthrough. The CAI (Confederation of Aerial Industries) is a recognised trade body which can put you in touch with one of its members in your area. This can increasingly happen if your batteries are beginning to fail. When Radio 5 Live Sports Extra is on air, you should find it right next to 5 Live on the list of stations on your digital radio. They may be supplied by your Internet Service Provider (ISP) as part of a package. 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