[Azham] Fwd: Hams may loose the 70 cm band!!!!!!

Taliesin MacAran [email protected]
Tue, 8 Oct 2002 16:50:44 +0000


----------  Forwarded Message  ----------

Subject: Hams may loose the 70 cm band!!!!!!
Date: Tue, 8 Oct 2002 08:04:47 -0700
From: "Joe Ruby" <[email protected]>
To: <Undisclosed-Recipient:@pcslink.com;>

Hi Gang,

I thought you might want to know about this, especially since we are savi=
ng
 and planning to move our IRLP node 3820 to 70 cm soon. See below:

~~~~~~~~~~~~~~~~~~~~~~~~~
RADIO REGULATIONS:  A WORLDWIDE CHALLENGE TO 70 CM

If you operate on 70 centimeters anyplace in the world, listen up.  Your
future access to that band is in peril.  Q-News Graham Kemp, VK4BB, has
the details on how a proposed satellite system could run hams off of the
band:

--
It has come to the attention of the South African Radio League, SARL
that the threat to the 70-cm band -- world wide --  is once again very
real.   The SARL has just received a discussion paper which will be
tabled at the World Radio Conference next year -- WRC-03 -- which
directly  targets the portion of 432 to 438 MHz for exclusive use by the
planned Earth Exploration Satellite Service or EESS,  due to be launched
soon.

If this proposal is carried at the World Radio Conference next year it,
will see this portion of spectrum allocated on a worldwide basis and
this spells the death knell of all 70-cm ham radio operation.

The section of the proposal and the motivation is as follows:  Agenda
Item 1.38: '...to consider provision of up to 6 MHz of frequency
spectrum to the Earth exploration-satellite service active in the
frequency band  420-470 MHz, in accordance with Resolution 727 that was
revised at WRC-2000.
--

But why target the Amateur Radio allocation at 70 centimeters?  The
researchers who want it say its the only frequency that will work.
Again, Q-News Graham Kemp, VK4BB:

--
According to the United Nations Conference on Environment and
Development  -- UNCED --  held in Rio de Janeiro in 1992, there is an
urgent need for assessment and  systematic observations of forest cover
and rate of forest degradation in  tropical and temperate regions.
Active space borne sensors Synthetic Aperture Radars (SARs) are needed
to enable the monitoring of forest biomass.

Systems operating on frequencies around 450 MHz can penetrate the canopy
of forests, and have the capability to determine the ground-trunk
interaction and are in the context of forest cover information of
particular importance.

Systems operating at 1.3 GHz, or higher frequencies cannot penetrate the
canopy.  The spectrum around 450 MHz is also optimal for monitoring of
continental ice and for monitoring of vegetation and soil surfaces for
desert and  tropical areas.
--

More on this story in future Amateur Radio Newsline reports.  (Q-News,
SARL, ARNewslineT)

~~~~~~~~~~~~~~~~~~~~~~~~~~

Keep at least two wheels on the Slickrock!
and
Keep all of the old Jeep trails OPEN!
and
Stay ON the trail!

Joe Ruby
KC7GHT
(Kilo Charlie 7 Going High Tech)
IRLP Node 3820, Phoenix, Arizona, USA
Uplink DTMF 3820    Downlink DTMF 73
http://www.qsl.net/vk3irl/hi_gang.htm
http://www.qsl.net/wb7tjd/irlp.html
http://www.irlp.net
http://www.ecso.com/jima/kc7ght.htm

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