[vanman]

Originally Posted by Stuart

But "do" in that context doesn't make sense to me.


Anyhow, as for evidence, how about OFCOM's view?

ah thanks for that .

Has Ofcom investigated PLT equipment?
Yes. Ofcom has exercised its enforcement functions under the EMC Regulations. Ofcom has investigated alleged breaches of the EMC regulations resulting from the supply of Comtrend PLT apparatus by BT.
What has Ofcom found?
On the evidence, Ofcom has not so far found that there is a breach of the EMC essential requirements. Ofcom has therefore decided against taking further enforcement action at this time. Ofcom is working together with Comtrend and BT to reduce any negative effects in individual cases and we support them in doing so.
It is recognised that EMC compliant equipment may still, in certain circumstances, have the capacity to cause interference to other radio communications equipment. This may happen due to the manner in which it is installed or operated.
Evaluating the complaints received and the evidence so far obtained, Ofcom has concluded that there does not at present appear to be significant public harm arising from this situation.
with around 750,000 Pairs of equipment estimated to be in use in the UK today.
Over the past 12 months Ofcom has received 143 individual PLT interference complaints; all from radio enthusiasts. Of these 121 have been investigated and referred to the apparatus supplier who has resolved 104. The solutions employed include replacing the apparatus, hard wiring and conventional wireless alternatives.
All of the complaints relate to the inability to receive radio transmissions in the High Frequency (HF) band (3 to 30MHz).
There are many other users of the HF Band including long range aeronautical and oceanic communications, the Ministry of Defence and international broadcasters. Ofcom has not received complaints of interference to these services

http://stakeholders.ofcom.org.uk/enf...forcement/plt/