[KYHAM] RE: 5 MHz DRAFT PROPOSAL

Thu Sep 28 22:01:19 EDT 2006

Attached is a comment that was sent to me today.

Bob

Re this proposed allocation.

I recognize the importance of this band to the Amateur service, especially
over the next few years while the sunspots are low. 

However, because of the Primary services already using the proposed 5260 to
5410 area, I strongly recommend that the need for "listen-before-transmit"
technology be made mandatory and that the length of continuous transmission
by an Amateur service be limited to (x minutes - 5?) and followed by a pause
of y minutes ( 1?).

Geographic separation will allow some limited simultaneous sharing of
specific frequencies and some services will be able accommodate time sharing
of the frequency under the above mentioned conditions. Other high volume
continuously operating data systems such as Globewireless will tend to give
the Amateur service very limited opportunity to use specific frequencies.

Here is a brief list of Primary users already using this band (5250-5410)
This is based on records and recent (2006) monitoring.

Are all of these users aware of this proposal?

Military/Govt.

USN, US Mil, USCG (5320), FEMA, UK RN, UK Mil, Algerian Mil, Venezuela Mil,
Moroccan Mil, Swiss Mil, Egyptian Air Def, French AF, NZ Navy, Mosad, Spanish
Civil Guard, Tashkent Met and Chinese Meteo.

Many of the above using Military ALE.

Commercial

Sailmail, Globewireless Canada E x 2, Globewireless San Francisco x 2,
Globewireless Sweden x 3

In view of the above, I believe that the non-interference precautions should
be strengthened.

Regards,

Peter.Kierans at Comcast.net

________________________________

From: Stephens, Bob L MR NGKY
Sent: Thu 9/28/2006 9:55 PM
To: KYHAM at mailman.qth.net
Subject: 5 MHz DRAFT PROPOSAL

COMMENTS PLEASE!  BOB STEPHENS WA4CMO

United States of America

DRAFT PROPOSAL FOR THE WORK OF THE CONFERENCE

Agenda Item 1.13:  taking into account Resolutions 729 (WRC-97), 351 (WRC-03)
and 544 (WRC-03), to review the allocations to all services in the HF bands
between 4 MHz and 10 MHz, excluding those allocations to services in the
frequency range 7 000-7 200 kHz and those bands whose allotment plans are in
Appendices 25, 26 and 27 and those whose channeling arrangements are in
Appendix 17, taking account of the impact of new modulation techniques,
adaptive control techniques and the spectrum requirements for HF
broadcasting;

Background Information:  Changes to Article 25 made at WRC-03 encourage
administrations to take the necessary steps to allow amateur stations to
prepare for and meet communication needs in support of disaster relief. Most
administrations recognize the amateur services as serving humanitarian and
disaster relief agencies as well as non-government organizations such as the
Red Cross and Red Crescent Movement. The amateur services provide emergency
communications on a local, national and international basis as an adjunct to
normal communications, and in many cases provide the first information about
disasters and serve as the only communications link when communications
infrastructures are destroyed. 

Based on the recommendation of the 1978 CCIR Special Preparatory Meeting,
WARC-79 accepted the principle that, like other high-frequency radio
services, the amateur service should have access to a family of frequency
bands so communications can be maintained as propagation conditions change.
Particularly in the higher latitudes, there are many times when the maximum
usable frequency (MUF) is below 7 MHz but is too far above the next lowest
amateur frequency band (3.8, 3.9 or 4.0 MHz, depending upon the Region) for
communication to be supported in that band. 

There is successful experience with amateur operation in the band 10 100-10
150 kHz, which is allocated to the fixed service on a primary basis and the
amateur service on a secondary basis.

Since 1999, a number of administrations have authorized amateur service
operations on specific voice-frequency bandwidth channels, subject to No. 4.4
of the Radio Regulations, as follows:

5 260 CAN, G

5 269 CAN

5 280 CAN, FNL, ISL, NOR, G

5 290 CAN, FNL, ISL, NOR, G

5 300 FNL

5 319 CAN

5 329 CAN

5 332 USA, FNL, ISL, NOR

5 348 USA, FNL, ISL, NOR 

5 368 USA, FNL, ISL, NOR 

5 373 USA, FNL, ISL, NOR

5 400 CAN, FNL, ISL, NOR, G

5 405 USA, CAN, ISL, NOR, G

Operating experience has shown that these frequencies have the desired radio
propagation characteristics and that amateur operations can co-exist without
interference to the fixed and mobile services.

A secondary allocation of 150 kHz would allow sufficient bandwidth to meet
amateur service requirements while dynamically avoiding frequencies in use by
other services.

Proposal:

USA/ /1  MOD

ARTICLE 5

Frequency allocations

Section IV - Table of Frequency Allocations

5 003-7 450 kHz

Allocation to services

Region 1

Region 2

Region 3

5 250-5 450260                                     FIXED

                                                                  MOBILE
except aeronautical mobile

5 260-5-410                                        FIXED

                                                            MOBILE except
aeronautical mobile

                                                            Amateur

5 410-5 450                                         FIXED

                                                             MOBILE except
aeronautical mobile

Reasons:  Allocation of a band at 5 MHz to the amateur service, on a
secondary basis, will provide communications at times when the MUF is below 7
MHz and above the next lower amateur frequency band. Use of
listen-before-transmit techniques avoids interference to the primary
services.

________________________________

From: kyham-bounces at mailman.qth.net on behalf of jd_hudson at comcast.net
Sent: Wed 9/27/2006 6:43 PM
To: KYHAM at mailman.qth.net
Subject: [KYHAM] (no subject)

Sorry guys and gals about the post for the swapmeet and foxhunt.. This is in
Paducah on Oct 14th and when I was clicking email address's, I clicked on
KYHAM without thinking

Sorry BUT if you are in the area..COME ON DOWN!!

73

John
KO4XJ
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