On Fri, 22 Jan 2016 10:22:09 +0000, Ian Jackson
wrote:

In message , gareth
writes
For QRO TX on MF and LF, do people feel the need to disconnect the ADSL
router
from the telephone line lest induced pick-up should blow it up?

It all depends on how QRO is QRO, and the proximity of the antenna to
the phone/ADSL/LAN wiring.

Even when running moderate powers (100W or less), a lot of amateurs find
they get disconnected from the internet when they transmit. Multi-turn,
large-diameter ferrite ring chokes on all the connections to the router
usually helps quite a bit.

But as for actual damage, my only experience is when lightning struck
(or struck near) the overhead phone lines about quarter of a mile away.
There was a simultaneous 'click' from my ADSL modem, and it immediately
stopped working (but no sign of damage).



You won't do any damage, but Ian is quite right, the router may well
crash (and may also disrupt ADSL with some of your neighbours)
If you have the older faceplate disconnecting the bellwire (usually
Orang/white) may improve things and you may well need some specialist
filters as will your neighbours!


http://qso365.co.uk/wp-content/uploa...DSL-filter.pdf