mackie Posted October 26, 2004 Posted October 26, 2004 COULD ANYONE TELL ME IF WIDE BAY STATIONS ARE ON FULL POWER SINCE ABC STARTED TRANSMISSION OVER 12 MONTHS AGO, THE PQ GETS WORSE AFTER 6PM, THE PICTURE STOPS, SHAKES, THE PIXELS MOVE, AND WHEN THEY RETURN TO NORMAL ITS ONLY FOR A COUPLE OF MINUTES, AND THE SOUND IS OUT OF SYNC. CH7 ON CH7 VHF. THE SOUND ON DOLBY D DROPS OUT & RETURNS WITH A LOUD CLICK, PQ IS OK. CH10 ON CH9 VHF, & CH9 ON CH10 VHF ARE THE WORST.MY ANTENNA HAS BEEN UPGRADED.
mylesau Posted October 26, 2004 Posted October 26, 2004 COULD ANYONE TELL ME IF WIDE BAY STATIONS ARE ON FULL POWERSINCE ABC STARTED TRANSMISSION OVER 12 MONTHS AGO, THE PQ GETS WORSE AFTER 6PM, THE PICTURE STOPS, SHAKES, THE PIXELS MOVE, AND WHEN THEY RETURN TO NORMAL ITS ONLY FOR A COUPLE OF MINUTES, AND THE SOUND IS OUT OF SYNC. CH7 ON CH7 VHF. THE SOUND ON DOLBY D DROPS OUT & RETURNS WITH A LOUD CLICK, PQ IS OK. CH10 ON CH9 VHF, & CH9 ON CH10 VHF ARE THE WORST.MY ANTENNA HAS BEEN UPGRADED. <{POST_SNAPBACK}> Hi Mackie, I've been running a DTV Tuner card for some time now - I believe all current transmissions are now at full power - I don't get any of the problems you have listed. What are you using, a reasonable quality Set Top Box or other? It sounds like you are getting some sort of interference - what happens after 6pm in your neighbourhood - anything that might cause interference? Does what ever you are using have the ability to display signal strength, SNR, BER values? If so what are they? They should indicate if you are getting a poor signal or have some other problem. What is the quality of your Analogue signal? If its bad then your digital signal is probably also suffering.
mackie Posted October 26, 2004 Author Posted October 26, 2004 Hi Mylesau Iam running 2 Set Top Boxes A Teac DVB 300 Connected To A 68cm Panasonic & A Panasonic TU-HDT104A Connected to a NEC Plasma PX-50XR4W The Interference Occures On Both Displayes At The Same Time HD Signal From The Panasonic Box Is Via The R/G/B/HS/VS VGA Cable The Analogue Signal Is Perfect My VHF Antenna Is A High Gain, High Band
datvman Posted October 26, 2004 Posted October 26, 2004 have you thought that maybe you have too much signal
Greypeter Posted October 26, 2004 Posted October 26, 2004 Hi Guys, Too much signal could definately be the problem here. You could try a Variable Attenuator to reduce the signal to see if things improve. I believe Dick Smith sells one. Cheers Peter
mylesau Posted October 26, 2004 Posted October 26, 2004 mackie, Can you provide any more detail? datvman and Greypeter could be on the mark with you having too much signal... How do you have your two STB + Analogue hooked up - are you using a splitter and/or perhaps a masthead amplifier? Can you get any readings of the STB's for Signal Strength, SNR and BER? What direction is your antenna pointing - directly at Mt Goonaneman (slightly west of south)? Sorry, need a little more info...
mackie Posted October 27, 2004 Author Posted October 27, 2004 mackie,Can you provide any more detail? datvman and Greypeter could be on the mark with you having too much signal... How do you have your two STB + Analogue hooked up - are you using a splitter and/or perhaps a masthead amplifier? Can you get any readings of the STB's for Signal Strength, SNR and BER? What direction is your antenna pointing - directly at Mt Goonaneman (slightly west of south)? Sorry, need a little more info... <{POST_SNAPBACK}>
mackie Posted October 27, 2004 Author Posted October 27, 2004 (edited) mylesau you could be right about having to much signal & have arranged to have a antenna installer to check it out the signal strength scale on the teac shows about 70% on ch7,ch 9,ch28 & about 60% on ch9a & ch10 the panasonic ranges between 85 & 90 on all channels i have a masthead amplifer, and splitter, wired to the 2 set top boxes. RF out from the set top boxes to 2 VCR RF in, RF out from SD STB to TV. as far as i know the antenna should be pointing at mt goonaneman THANKS FOR YOUR REPLIES Edited October 27, 2004 by mackie
mylesau Posted October 27, 2004 Posted October 27, 2004 Hi mackie, Depending on what type of masthead amplifier you have you might be able to reduce the gain yourself. If its anything like the one I have (GME Kingray) - its a very simple process of turning two small potentiometers within the "box" on the antenna - one pot for UHF and one for VHF - I wound both of mine back to the minimum gain and don't have any problems. Though analogue 7 does suffer a bit with "snow", which I never use to get when on full gain. Let us know how you go - always helpful for others who might read this thread later.
thetron Posted October 29, 2004 Posted October 29, 2004 btw DON'T USE CAPS LOCK CAUSE IT'S CONSIDER YOUR SHOUTING
alanh Posted October 30, 2004 Posted October 30, 2004 mackie, Wide Bay Channel numbers (LCN) Analog 6 30 39 8 33 Digital ABWQ (2) 9A SBS (3) 28 RTQ (8) 10 STQ (6) 7 TNQ(5) 9 Spare 31, 54 Your antenna for all stations except SBS should be vertical and for SBS and any future stations horizontal. If the signal is too strong you are much better off reducing the amplifier's gain instead of attenuating its output, unless you have no choice. Ie it affects the analog too much. AlanH
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