LF: Re: 137kHz Rules and Regs

To:	[email protected]
Subject:	LF: Re: 137kHz Rules and Regs - PLC QRM?
From:	Markus Vester <[email protected]>
Date:	Wed, 5 Dec 2012 07:51:06 -0500 (EST)
Dkim-signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1354711866; bh=WNuIxHHJO0o+GQLdBmduhcaFarhHnmTawN5yt4ynGvA=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=BWbz1ax0OWepIGychAvzT9w5Qu26W9b5JFGsD/Zoi0C0MpzwiuZT/4BaUZxURwNUY ainwkEsE3o3TbeydLD9ghbL0KZ0Ba80NdGvLmQui4krlor+49YCAAJbPBCI6N8WUG6 IB+vku8YOjVXcBZN84Bhsp5VAjrccz/sWB9utpzg=
Reply-to:	[email protected]
Sender:	[email protected]

Hi Warren,

the point may have been discussed on this list before, but I don't remember which thread it was... If there is significant coupling between PLC and LF antennas and both are using a common frequency range, wouldn't you expect to see some QRM from them? Are you observing any of this?

And I was wondering if the random dashes which sometimes appear on different Canadian and US grabbers might be PLC related, perhaps some sort of slow multitone system? Attached is a recent example from VE1VDM.

Best 73,

Markus (DF6NM)

From: Warren Ziegler

Sent: Monday, December 03, 2012 11:38 PM

To: rsgb_lf_group

Subject: LF: 137kHz Rules and Regs

Hello the list...

The FCC is looking to authorize the 135.7-137.8kHz ham band in the U.S. with 1 W EIRP and beyond that possible restrictions on antenna height and power - also they may implement some restrictions based on proximity to power line carrier (PLC) equipment. Having operated WD2XGJ with up to 4W ERP (6.5W EIRP) within 300 meters of a power line with an active PLC, I feel that this is overly restrictive.

Can anyone tell me what the rules and practice are in Europe and also Canada?

I would like to include this info in my response to the FCC.

Tnx!

--
73 Warren K2ORS
WD2XGJ
WD2XSH/23
WE2XEB/2
WE2XGR/1

ve1vdm_eu_121120_0120.jpg
Description: image/pjpeg

<Prev in Thread]	Current Thread	[Next in Thread>
LF: Re: 137kHz Rules and Regs - PLC QRM?, Markus Vester <=

Previous by Date:	Re: LF: 137kHz Rules and Regs, Alan Melia
Next by Date:	Re: LF: XPQ - in Bucharest?, Markus Vester
Previous by Thread:	LF: XPQ, Laurence KL1 X
Next by Thread:	Re: LF: XPQ - in Bucharest?, Markus Vester
Indexes:	[Date] [Thread] [Top] [All Lists]

LF: Re: 137kHz Rules and Regs - PLC QRM?