[Lowfer] Should we make comments on 1750M?

Mon, 20 May 2002 18:24:42 -0500

That sounds just fine to me exactly as you have it written. Good idea.

Mike>WE0H
http://www.geocities.com/we0h/lf.html

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of John Andrews
Sent: Monday, May 20, 2002 1:54 PM
To: [email protected]
Subject: [Lowfer] Should we make comments on 1750M?

In the FCC's NPRM for the new amateur allocations, they invited comments on
their exclusion of an amateur allocation at 160-190 kHz. I'm wondering how
they would react to the following items in a counter-proposal:

1. Leave the 160-190 kHz Part 15 rules exactly as-is.

2. Add a secondary Amateur allocation at 160-190 kHz. The rules would NOT be
the same as proposed for 136 kHz, though:
A. No specification of antenna type or dimensions.  Obviously, this would
allow considerably more experimentation than the Part 15 rules, and would
permit use of the same (larger) antennas on 136 and 160-190 kHz.
B. No reference to the transmission line. This relieves the need to keep the
PA at the antenna base.
C. Transmitter power OUTPUT limited to 1 watt PEP only. This is 20 dB lower
than the power level proposed for 136 kHz, and in line with the current Part
15 rules. But it would permit us to use linear PA's without being penalized
for their lower efficiency.
D. Emission BW should be confined to the 160-190 kHz band, but there would
appear to be no need to preclude any reasonable mode.

This would allow continuation of present Part 15 operations, and the overlay
of Amateur operation with improved antennas and more transmitter
flexibility. Since most of us can gain only so many dB within the bounds of
our real estate, I doubt that the Amateur signals could be so dominant as to
foul things up too badly for the unlicensed guys.

I'd be curious to hear comments, pro and con, with any additions or
deletions. Also, thoughts on even turning this rock over would be
appreciated.

John Andrews, W1TAG

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