[FedCom] 400-406 Inquiry

[DCFT2001]

Aaaah. Thank you for the refresher. I was confusing those two...The Red Book does sound pretty intriguing.  Oh im definetly gonna read more than the tables...i was just doing a quick scan of it. Thanks again for the info!

MHZScab




________________________________
From: "lists at lazygranch.com" <lists at lazygranch.com>
To: Discussion of Federal Government Communications <fedcom at mailman.qth.net>
Sent: Mon, December 21, 2009 4:59:52 PM
Subject: Re: [FedCom] 400-406 Inquiry

I suspect you are thinking of the IRAC, not the Red Book. 

Incidentally, you need to do more with the Red Book than read the tables. All the exceptions to the tables are buried in the text.

-----Original Message-----
From: DCFT2001 <dcft2001 at yahoo.com>
Date: Mon, 21 Dec 2009 13:51:14 
To: Discussion of Federal Government Communications<fedcom at mailman.qth.net>
Subject: Re: [FedCom] 400-406 Inquiry

Thanks Chris for the URL.... It has been over 8 years since I used to monitor fed comms on a regular basis. When you mentioned the avialability of the red book and the URL, I was shocked. I thought this book was restricted to only fed agencies...I remember back then going to the FCC offices in Miami and requesting info on this book and getting denied.  When did the status of this book change from confidential to public? From looking over the PDF I still see that it wont list the users or licensees for a given frequency, it only gives you a general overview in the frequency allocation tables. Its been a long time and I DO have a bad memory, maybe this has been available all the time. Care to clarify? Thank you!

MHZScan



________________________________
From: Chris Parris <chrisparris at monitoringtimes.com>
To: Discussion of Federal Government Communications <fedcom at mailman.qth.net>
Sent: Mon, December 21, 2009 10:54:12 AM
Subject: Re: [FedCom] 400-406 Inquiry

On Dec 20, 2009, at 8:03 PM, MONIX wrote:

> I have been doing some research lately and am wondering what is in the
> 400-406 MHz band?
>
> Apparently it is restricted to only use by US government and  
> Military users!
>
> MONIX


If you look through your copy of the NTIA Redbook, you will see that  
various chunks of spectrum from 399.9 MHz to 406.0 MHz are assigned to  
several services, including:
METEOROLOGICAL AIDS
SPACE OPERATION (space-to-Earth)
EARTH EXPLORATION-SATELLITE (Earth-to-space)
METEOROLOGICAL-SATELLITE (Earth-to-space)

There is also mention of "Fixed & Mobile except aeronautical mobile"  
use, which appears to be some rare federal & military land-mobile use.

There are quite a few uplinks to the GOES satellites (I think) in the  
401-402 MHz range. I often see a small UHF crossed polarized Yagi  
antenna pointed up. They seem to be often located near rivers, streams  
and lakes monitoring water movement and levels.

Don't have a copy of the NTIA Redbook? Well head on over to hear and  
download it:

http://www.ntia.doc.gov/osmhome/redbook/redbook.html

Chris

  --
Chris Parris
Fed Files Columnist
Monitoring Times Magazine
chrisparris at monitoringtimes.com
http://www.monitoringtimes.com
http://mt-fedfiles.blogspot.com/
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