If you read US websites the main supply capacitor in a switchmode power supply only charges to 165V Where as ours charge to 339V and the energy store increases as a square of the voltage applied. So in the USA you will not kill yourself on this capacitor but the burns and the shock still exist.
3 weeks ago my reception for all of the Channel 7 range (Physical ch6) and most of Channel 9 went from 10/10 (Signal Strength and Quality) to 0/10 Quality (Ch7) and 4/10 Quality (Ch9). Whilst the signal strength remained at 10/10.
Steps I took to fix it:
- Replaced the masthead amp
- Cleaned all the contact points of the existing antenna
- Tried an LTE filter (which was a reach)
- Tried a new antenna with a different radiating pattern.
- Raised the antenna 1.5M
- Pointed it to an alternative broadcast tower
Came to the conclusion that I had a multi-path propagation issue. So the next step was to play around with antenna placement for a better spot.
But before I do that, I thought I'd turn off the Server PC, with this suspicion that it *might* have a faulty PSU. Sure enough, PC off = perfect reception on all channels. Then it dawned on me, 3 weeks ago I installed 2 new case fans in there: https://www.amazon.com/Antec-Tricool-Speed-120mm-Case/dp/B00314W992
Turns out one of them was faulty, causing EM interference through the mains.
Will never get that diagnostic time back! Thought I'd share it in the hope that it helps some other poor soul in a similar situation.
After MLXXX's and others poor quality sound campaign from DAB+ in Australia there is now 3.5 million listeners who obviously don't agree with them. AAC compression is lossy system so as to get such low data rates, Extensive testing was carried out to determine what could be left out and not be noticeable when compared with the orignal sound and the listening panel had no idea what had been done to each sample in which the order was randomised.
Digital video is also a lossy system which also had extensive testing to see what could be left out in a similar way to what is describe above. How many would like to go back to analog now?
No comment has been made about the poor quality of AM broadcast for example, no stereo, poor signal to noise ratio, high distortion, and a very poor frequency range in all current commercial radio receivers. http://www.drm.org/listen-compare/ A
Add no pictures or text which is available on DRM and on the internet.