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- From: Info-Hams Mailing List and Newsgroup <info-hams-relay@ucsd.edu>
- Reply-To: Info-Hams@ucsd.edu
- Subject: Info-Hams Digest V91 #197
- To: Info-Hams@ucsd.edu
-
-
- Info-Hams Digest Mon, 4 Mar 91 Volume 91 : Issue 197
-
- Today's Topics:
- 800 MHZ frequency allocation
- Wanted DUPLEXER
-
- Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
- Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Info-Hams Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
-
- We trust that readers are intelligent enough to realize that all text
- herein consists of personal comments and does not represent the official
- policies or positions of any party. Your mileage may vary. So there.
- ----------------------------------------------------------------------
-
- Date: 3 Mar 91 18:21:16 GMT
- From: sun-barr!newstop!grapevine!male!texsun!letni!rwsys!kf5iw!k5qwb!lrk@apple.com (Lyn R. Kennedy)
- Subject: 800 MHZ frequency allocation
- To: info-hams@ucsd.edu
-
- c135rmz@utarlg.uta.edu (RAMI ZUREICK) writes:
-
- > I am new to the scanning world. In my new scanner's book, there's a frequency
- > allocation list which contains the following:
- >
- > 806.000 - 816.000 Domestic Public (Mobile)
- > 816.000 - 821.000 Mobile Trunking
- > 851.000 - 861.000 Domestic Public (Base)
- > 861.000 - 866.000 Base Trunking
- >
- > Could someone tell me what the above terms mean? who is using the above
- > frequencies? what is in between 821.000 - 851.000 and 866.000 - 902.000? (is
-
- The systems use repeaters with 45 Mhz between mobile (lower freq)
- and base. These are general allocations as non-trunked systems are
- usually in the lower 5Mhz and only trunked systems in the upper 5Mhz.
- However, any combination is possible.
-
- 824 to 849 is the mobile side of cellular and 869 to 894 the base
- side. 850 to 851 and 895 to 896 is used for aircraft public telephone.
-
- > that cellular!) Is there an up to date frequency list on the net?
-
- if you find one let me know. the best references are the radio shack
- police call book and in your area n5aux's DFW freq list. both are
- full of errors. if you have specific questions e-mail me. I'm an
- expert but i don't publish everything i know.
- >
- >
- > Rami Zureick
- > University of Texas at Arlington
- > Academic Computing Services
- > ================================
-
-
-
- ---------
-
- 73, lrk utacfd.utarl.edu!letni!rwsys!kf5iw!k5qwb!lrk
-
- P.O. Box 5133, Ovilla, TX, USA 75154
-
- ------------------------------
-
- Date: 3 Mar 91 15:57:27 GMT
- From: zaphod.mps.ohio-state.edu!lavaca.uh.edu!menudo.uh.edu!lobster!urchin!f8324.n106.z1.fidonet.org!Christopher.Boone@tut.cis.ohio-state.edu (Christopher Boone)
- Subject: Wanted DUPLEXER
- To: info-hams@ucsd.edu
-
- If you are using horizontal seperation, you will have big problems unless you
- are several miles apart! If you can go vertical seperation, try about 75-150
- ft which should do it...both antennas need to be in a stright up and down line
- with each other...and use Belden 9913 or similar, NOT RG8 or single braided
- coax...a solid or double shield coax is a MUST in duplex work...of course if
- you get a duplexer, then you can use any good coax/heliax to the antenna but
- double shield is a MUST everywhere else, especially on a 2mtr rptr!
- Also, do not use cheap gear on a 2mtr rptr.....I have some GE MVPs coming that
- make a nice 2mtr rptr in the box and all they need are xtals and tuning into
- two meters...30 or so watts out and good helical rcvrs....$200 apiece if
- you're interested..(they also can be converted to 200 easily!!!)
- 73
- Chris WB5ITT
- (I'll keep an eye open for duplexers for ya!)
-
- ------------------------------
-
- End of Info-Hams Digest
- ******************************
-