Interference from digital set top box

Does it have a C Tick? Maybe it would not have it through the approval if it was actually tested.

It costs too much to have C tick compliance, that would eat into the profits on their 10 containers of the spugie emitting ebay rubbish. Build a faraday cage for it.

Rob

Ah, it's the law.....

it also reduces the lawsuits if it has a potential fire danger...

Hello chaps,

This Kross STB was purchased from Woolworth Supermarket, Park Avenue Coffs Harbour an is supposed to be complient with Australian regulations.

Cya Mac

And the key word is "supposed", until some one complains very loudly indeed, the authorities do not check that actual shipments comply with any regulations. Until companies are comprehensively fined, it is usually cheaper for them to ignore such regulations.

MrT.

That would explain the same C tick registration numbers on different products....

It depends on who holds the registration - many devices are identical but simply "badge-engineered" for different suppliers.

The required response is clear:

1. contact the supplier and make noises about interference, suspected non-compliance etc,

1. contact the ACMA area office, lodge a formal complaint (make noises about suspect non-compliance or suspect labelling) - either pay your or get your neighbours to also complain.

Keith G Malcolm VK1ZKM

A C-tick number (correctly known as Supplier Code Number) relates to the Australian supplier (i.e. importer or distributor), not the product.

This means you see:

1. the same product from different suppliers but with different supplier code numbers,

OR

1. different products all from the same supplier with the same supplier code.

sb wrote:

Hey Mac, are you sure the plug pack is not a switchmode PSU? The broadband radiation you describe would seem to be more likely to eminate from a faulty switchmode. I had a Kross STB, but I gave it to my Mum when the Thompson unit she had suffered a failed PSU, which radiated in a similar way that you described. She couldn't pick up any AM radio due to the interference. Unplugging the Thompson fixed it.

I recall that the PSU on the Kross was very lightweight, so I assumed it to be a switchmode. I didn't crack it open to find out though :)

I eventually hooked up a conventional 12v DC regulated transformer wall wart to the Thompson, and it now works, although it does need to be unplugged every now and then when it locks up.

The Kross is still going OK. I recall that it used to squeel and break up when a certain light switch was turned on or off. I reduced the affect by winding the power lead onto a ferrite core.

WR

Oh Bugger!!! it was a switch mode plug pack supply and thats where all the hash came from. Used a linear supply and all clear.

Cya Peter

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I got caught out too with a switch mode from Jaycar, noise o plenty!

Thought so.