[UK-CONTEST] PLT Petition

[Dave Sergeant]

On 5 May 2009 at 17:39, Darrell G0HVQ wrote:

> Perhaps I got lucky, I'm using 85M Homeplug Turbo devices: thankfully I
> got loaned a couple to try out before I bought, as I was worried about
> EMC. But from my perspective, they're not as bad as everyone is making
> out.

Homeplug spec devices are slightly different in that they are only 
active when they are transmitting data, apart from a short handshake 
ever second or so - which causes a clicking noise similar to an 
electric fence. 

The Comtrend devices supplied by BT for their BT Vision product are 
made to the alternate UPA specification - and are 200Mbs and use the 
whole HF spectrum. These transmit continuously, 24/7, regardless of 
whether any data is being passed. They are notched inside the amateur 
bands but you cannot miss the racket they make outside the amateur 
bands - we demonstrated a pair at our club the other month. They are 
DREADFUL...

73 Dave G3YMC

http://www.davesergeant.com