[UK-CONTEST] Reverse TVI !!!!

[Dave Sergeant]

On 26 Jun 2005 at 15:02, Bob Harrison wrote:

> 1. Black Diamond Wide Screen TV...... this is causing wideband mush
> (S9) centred around 20m completely killing RX!.... I think its the
> switch mode PSU as it occurs even when the set is off but on Standby.
> Any ideas?
> 

This is one of those Turkish specials - in fact 95% of TVs in the 
world are made at the Vestel plant in Turkey, something many people 
don't know...

Probably hard to cure except by filtering the mains input and 
possibly the antenna lead - but it may of course be direct radiation. 
But you should really get into the habit of turning the set off at 
the mains instead of putting it into standby. Apart from the 
'convenience' all leaving it on does is cook the electrolytic 
capacitors (life time 10,000 hours or so, work it out, it ain't long) 
and stopping it doing its automatic degaussing, not to mention 
increasing your electric bill rather more than by what your HF linear 
does...

One of the reasons why I don't operate on 136kHz these days is 
because of a similar problem with my neighbour's TV down there. I did 
have a page on my website (in fact still do) to detail TV radiation 
problems but it has not been updated for yonks.

73 Dave G3YMC


http://www.davesergeant.com