brockot Posted March 25, 2014 Share Posted March 25, 2014 Hi all, I am having reception issues and would appreciate any teaching on the issue at all. Currently using a Yamaha TX-492 here hooked up to a brand new roof antennae. I live centrally on the Gold coast and am located on the crest of a hill. Moet of the local radio stations register strongly on the tuner's signal strength meter but only a couple are pure, the rest have to varying degrees obvious static and it is driving me crazy. What can I try? Regards and thanks Link to comment Share on other sites More sharing options...
BATMAQN Posted March 25, 2014 Share Posted March 25, 2014 I never had much success with my roof antenna I found just a piece of wire in the antenna socket of the receiver was enough but that only does FM I didn't bother with AM I'm sure somebody else has a better suggestion. Link to comment Share on other sites More sharing options...
lebowski Posted March 25, 2014 Share Posted March 25, 2014 I was told to avoid a TV roof antenna for FM Link to comment Share on other sites More sharing options...
surprisetech Posted March 25, 2014 Share Posted March 25, 2014 Can you give a bit more detail on your antennae and antenna connections. Is the problem with AM stations, FM stations or both. Link to comment Share on other sites More sharing options...
brockot Posted March 25, 2014 Author Share Posted March 25, 2014 (edited) Great responses so far, thanks all. Surprisetech; Antennae was installed 1 year ago and is supposedly DVB-T type? Tuner s connected to wall terminal via long shielded cable. I only listen to FM. AM reception is unreliable but isn't it always? Edited March 25, 2014 by brockot Link to comment Share on other sites More sharing options...
BATMAQN Posted March 25, 2014 Share Posted March 25, 2014 Try the piece of wire it's cheap and it might surprise you I'm using one of those twisty wire's that bakers use to tie bags of bread I kid you not it goes in the centre pin of the receiver's antenna socket and it's about 20 centimetres long the FM signal is clear and strong try to make sure it is in there tight maybe double over the wire. It works. Link to comment Share on other sites More sharing options...
lebowski Posted March 25, 2014 Share Posted March 25, 2014 The very best FM reception I have achieved is using the thin cable supplied connected to the Tuner and running up the wall as high as possible Link to comment Share on other sites More sharing options...
surprisetech Posted March 25, 2014 Share Posted March 25, 2014 Great responses so far, thanks all. Surprisetech; Antennae was installed 1 year ago and is supposedly DVB-T type? Tuner s connected to wall terminal via long shielded cable. I only listen to FM. AM reception is unreliable but isn't it always? There's not really such an animal as a "DVB-T type" TV antenna. There are VHF, UHF and VHF/UHF combination TV antenna's. A so-called DVB-T antenna is simply one of those antenna's with appropriate frequency coverage and gain that will pickup all the relevant Digital Channel frequencies in your area. It will either be a VHF/UHF combined antenna, or a UHF antenna. The only thing that might justify an antenna being called a DVB-T type is that it will have more comprehensive coverage of the upper UHF channels than what some earlier antennae might have had. I might be wrong, but I think all the TV channels are broadcast on UHF on the Gold Coast, so your TV antenna might be UHF only. (Can you check with the Installer?) This might be the issue, since the FM Radio broadcast band is in the low-end of the VHF band across the old VHF TV Channel 3 to 5 frequencies. The best TV antenna for FM are the older VHF ones that included sections for those frequencies. Also, long lengths of coaxial lead-in cable also attenuate the signal quite a bit, which will not help if the antenna is not ideal to start with. First, check that your rooftop antenna is pointing directly to Mt Tamborine. If that's not the problem, then you could start by trying the simple dipole wire antenna that came with the tuner and see if things improve. Something like this might be worth experimenting with, but just make sure it has a 75 Ohm cable and plug to suit your tuner. http://www.jaycar.com.au/productView.asp?ID=LT3114 Which stations are the clean and noisy ones? Link to comment Share on other sites More sharing options...
brockot Posted March 25, 2014 Author Share Posted March 25, 2014 Wow. Thanks for all the support. Plenty of things to try tonight. Stations that are clean are mostly bottom end of spectrum but couple of those 90.9 for eg are noisy too. Good to learn a bit more (a lot more actually) about the TV and FM signals. Thank you surprisetech. Will go through files tonight and try to get details of actual antennae installed. Brlliant guys. TTFN Link to comment Share on other sites More sharing options...
djb Posted March 25, 2014 Share Posted March 25, 2014 (edited) Intercity Melb get excellent reception on all but 1 station . With right weather conditions I pick up Murray Bridge when I don't want to! Have tried the wire up wall nad blue tacked in place on other occassions it's inferior to a professionally installed external aerial. It's easy for an amateur to mis install an aerial This might be a fallacy > do not run too many components off a single aerial even if not in use ie all those never turned on tv s in children's bed rooms. 3-4 maximum From memory in a previous thread -mr happy pants had a wire aerial running around s long external fence in a semi rural area. The bag tie system could be extended with a long roll of green garden tie from $2 shop. Edited March 25, 2014 by djb Link to comment Share on other sites More sharing options...
davm Posted March 29, 2014 Share Posted March 29, 2014 I use a dedicated external FM antenna for my tuner. Separate antenna and separate cabling back to my tuner. This ensures best possible FM reception. A popular type of FM antenna is called a Yagi antenna. I'm pretty sure that Jaycar sell them. They are designed to have reception for the right radio frequency FM signals are broadcast on here in Australia. Regards, David. Link to comment Share on other sites More sharing options...
Saxon Hall Posted March 29, 2014 Share Posted March 29, 2014 A VHF/UHF antenna will be suitable for FM transmission. A so called Digital TV antenna will NOT be suitable, so that is probably the issue. Do some more research relevant to your situation and I am sure you will sort out the issue and come up with a good alternative Link to comment Share on other sites More sharing options...
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