HDTenEightyP/NetNews huggingface dataset:
Newsgroups: alt.radio.scanner
Subject: <None>
From: alomesd@underdale.unisa.edu.au
Date: 7 Jan 93 16:34:54 CST
Organization: University of South Australia - UNDERDALE

Hi There,
	I have just bought a AR1500 Wideband Scanner and I am looking for 
frequecies to fill the 1000 memories in the Adelaide South Australia 
Area.


All the best 
Darren.







c/lm, LJQAZ
From: gedwards@ncratl.AtlantaGA.NCR.COM (Gordon Edwards)
Newsgroups: alt.radio.scanner
Subject: Re: Looking for a scanner w/ full coverage.
Keywords: scanner wanted full coverage 800 mhz
Date: 8 Jan 93 17:37:41 GMT
Organization: NCR Engineering and Manufacturing Atlanta -- Atlanta, GA

In <C0IvE9.3rF@olwejo.UUCP> bob@olwejo.UUCP (Bob Kupiec) writes:
...
>Uniden Bearcat's New Scanners
>-----------------------------
...
>2500-XLT
...
>8500-XLT
...
>They sound great, I can't wait to get my hands on them!  Watch for
>further announcements and reviews.

I called Grove Enterprises and they said they won't have them for about
6 months... called Scanner World and they didn't know when they might
have them.

The CEI add says "Due to the high demand for this product, allow 120-180
days for delivery A.R.O."

What's A.R.O. stand for?  Is it equivalent to saying Bearcat isn't going
to ship them to distributers for another 6 months?

-- Gordon

-- 
=============================================================================
Gordon Edwards, N4VPH              |         "Nothing Unreal Exists"
NCR Engineering & Manufacturing    |
gedwards@ncratl.atlantaga.ncr.com  |  Kiri-Kin-Tha's First Law of Metaphysics
From: urbina@novax.llnl.gov
Newsgroups: alt.radio.scanner
Subject: Re: what is wrong with my scanner?
Date: 8 Jan 93 04:38:52 GMT

In article <82352@ncratl.AtlantaGA.NCR.COM>, gedwards@ncratl.AtlantaGA.NCR.COM (Gordon Edwards) writes:
> In <1993Jan6.185918.879@uoft02.utoledo.edu> cscon0151@uoft02.utoledo.edu writes:
>>That reminds me of something I saw in one of those electronics magazines.  I
>>remember reading about being able to actually eavesdrop on a computer.  Does
>>anyone know how this could be accomplished?  Not that I'm going to do it of
>>course....;-)
> 
> Once I had an ADDS Terminal in the downstairs of the house... when it was
> in use could go to another TV and see what was appearing on the ADDS terminal
> by tuning to a certain channel... the picture wasn't very clear (couldn't
> make out the individual letters) and the TV was an old black and white
> one.
> 
> -- Gordon
> 
> -- 
> =============================================================================
> Gordon Edwards, N4VPH              |         "Nothing Unreal Exists"
> NCR Engineering & Manufacturing    |
> gedwards@ncratl.atlantaga.ncr.com  |  Kiri-Kin-Tha's First Law of Metaphysics



The way someone explained it to me, when the electron gun paints across the
phosphor coated screen that gives off electromagnetic waves. (RF) Most computer
monitors with few exceptions sweep approx. 50 - 75Mhz.

About 10-15 years ago a Dutch engineer named Van Eck built a device that
receives these signals or strong harmonics of these signals. Since computer
monitors and television sweep and sync rates are different Van Eck's device
took the computer monitor's signal and injected a TV sync signal with it for
display on a television receiver. In effect, with the Van Eck device you can
watch in real time, what your neighbor is typing on his computer. 

You can buy plans for a Van Eck device from Consumertronics, Alamogordo, New
Mexico. This information was given to me second hand, so if some of you more
knowledgeable people know more about it, let me know.

Guy
Urbina@novax.llnl.gov

Newsgroups: alt.radio.scanner
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: Antenna Design
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Distribution: usa
Date: Thu, 7 Jan 1993 00:20:35 GMT

mjc@iegate.mitre.org (Mick Costa) writes:
: 
: The question is, after using these antennas and seeing the differences
: between them, I could use some information about antennas, including types
: of antennsas and their suitability for scanners or other receivers.  I am
: also interested in understanding basic antenna design.  Are there any
: recommended sources for this type of information?  I am looking for
: proctical applications of antennas as opposed to a lot of heavy theory
: (although some theory is expected).

Try to find a copy of "The Radio Amateur's Handbook". Another reference
is called something like "The Amateur's Antenna Book" - I can look it up
if anyone needs it. Both are published by the ARRL. They contain theory,
as well as practical information.

For example, you would find that the discone antenna has the greatest
bandwidth. However, it is rated as 0 db gain. You can get about 3db
gain from a 5/8 wave antenna - but the bandwidth is fairly narrow.

Bill
From: oppedahl@panix.com (Carl Oppedahl)
Newsgroups: alt.radio.scanner
Subject: archive where?
Date: 6 Jan 93 17:39:34 GMT
Organization: PANIX Public Access Unix, NYC

Can someone tell me, please, if postings to alt.radio.scanner
are archived anywhere?

Barring that, I am curious if anyone happens to have saved the
"scanner sex" original posting and can make it available to me?

Thanks.

-- 
Carl Oppedahl AA2KW  (intellectual property lawyer)
30 Rockefeller Plaza
New York, NY  10112-0228
voice 212-408-2578     fax 212-765-2519
From: ron@hpfcso.FC.HP.COM (Ron Miller)
Date: Tue, 5 Jan 1993 22:32:58 GMT
Subject: Re: what is wrong with my scanner?
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: alt.radio.scanner

Re: sticking freqs

My PRO-43 seems to hang in the 155 Mhz range. I found a particularly awful
signal that hung the radio at 155.475.

I traced it to my wife's PC when it was in screen-saver mode with a little
clock face floating around the screen. Text or other screen savers are ok.

Look for RFI from many different sources. 

Ron Miller
From: ron@hpfcso.FC.HP.COM (Ron Miller)
Date: Wed, 6 Jan 1993 22:18:56 GMT
Subject: Re: what is wrong with my scanner?
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: alt.radio.scanner

> > 
> > I traced it to my wife's PC when it was in screen-saver mode with a little
> > clock face floating around the screen. Text or other screen savers are ok.
> > 
> > Look for RFI from many different sources. 
> > 
> > Ron Miller
> 
> 
> It sounds like it locked on to the 3rd harmonic of the VDT. VDT's raster rates
> are from 50 - 75 Mhz. If you listen to your scanner while you type on your pc,
> you can actually hear the characters as they appear on the screen. 
> 
> Guy
> Urbina@novax.llnl.gov
> 

I didn't care enough to check for actual freqs vs. intermod or whatever.

After having been the guy who took some oem'd monitors through FCC Class A
to turn them into Hewlett-Packard workstation monitors, I knew as much as 
was necessary to get my wife to kill off that annoying pattern because RFI 
from monitors is often pattern-related. Killing that pattern killed my RFI 
problem.

Ron Miller
NW0U
Newsgroups: alt.radio.scanner
From: schuster@panix.com (Michael Schuster)
Subject: Re: Cordless Freqs.
Organization: Panix Public Access Internet & Unix, NYC
Date: Thu, 7 Jan 1993 14:04:30 GMT

In article <208@beretta.UUCP> todd@beretta.UUCP (Todd Wall) writes:
>
>	What are the common frequencies for cordless phones???

Search between 46.61 to 46.97 MHz at 20 KHz intervals.


-- 
_______________________________Mike Schuster________________________________
NY Pub. Access UNIX/Internet: schuster@panix.com | 70346.1745@CompuServe.COM
The Portal (R) System: schuster@shell.portal.com | MCI Mail,GEnie: MSCHUSTER
From: gkd@wpi.WPI.EDU (Gregory K Doerschler)
Newsgroups: alt.radio.scanner
Subject: Re: 800MHz Trunked Radio System Signals
Date: 6 Jan 1993 05:24:57 GMT
Organization: Worcester Polytechnic Institute
NNTP-Posting-Host: wpi.wpi.edu
Keywords: The Control channel

In article <2B49E599.3879@news.service.uci.edu> lockhart@mothra.nts.uci.edu (Jack C. Lockhart) writes:

>So, if the controller is programmed to perform ruthless pre-emption,
>the control channel would reassign the pre-empted repeater to the unit
>making the emergency call.  However, the possiblity and probability
>exists that a part or all of the emergency call stations transmission
>will be blocked.  This will occur if the pre-empted transmitting
>station has captured the repeater.

And murphy's law would probably dictate that the pre-empted station was
some garbage collector in the middle of a 60 second diatribe about some
house with too many trash bags in front of it.  There would likely be
another channel free before the garbage collector unkeys.  The question
is whether the system would be able to re-assign the unit with the
emergency to one of the newly freed channels after it had already
decided to pre-empt the garbage collector.

                                     Greg
Newsgroups: alt.radio.scanner
From: parnass@cbnewse.cb.att.com (Bob Parnass, AJ9S)
Subject: Re: The New Bearcat 2500XLT-D (and 8500XLT-D)
Organization: AT&T Bell Laboratories, Naperville, IL
Date: Mon, 11 Jan 1993 14:21:01 GMT


Uniden won't have sales literature for consumers on the
2500XLT and 8500XLT until the end of February.

For dealers to advertise these unavailable scanners in magazines
is misleading.
-- 
==============================================================================
Bob Parnass, AJ9S  -  AT&T Bell Labs  -  parnass@ihlpm.att.com - (708)979-5414
Newsgroups: alt.radio.scanner
From: hgpeach@ms.uky.edu (Harold Peach)
Subject: Re: 800MHz Trunked Radio System Signals
Keywords: The Control channel
Organization: University Of Kentucky, Dept. of Math Sciences
Date: Tue, 5 Jan 1993 17:47:00 GMT

lrk@k5qwb.lonestar.org (Mr. Lyn R. Kennedy) writes:

>puma@halcyon.com (puma) writes:

>> lrk@k5qwb.lonestar.org (Mr. Lyn R. Kennedy) writes:
>> 
>> > This is another typical mis-representation. Unless the transmitting 
>> > unit is full-duplex, it will continue transmitting, blocking that 
>> > channel. Even though the system might prevent the next transmission, 
>> 
>> If the remote unit that was using the repeater and the remote unit
>> requesting emergency access are on different incoming frequencies,
>> why CAN'T the system immediately turn over the repeater channel
>> to the emergency unit?  What difference would it make if the first
>> remote unit continued transmitting?

>Say it's a five-channel system and all four talk channels are in use. 
>There are four mobiles transmitting on the four talk channels. If one 
>is full-duplex then it could be disabled but that is not common. Even 
>though the unit needing the emergency access could tell the controller 
>on the control channel (mobile side), it can't tell one of those other 
>mobiles to stop transmitting so there is no repeater available. 
>Whichever one quits first may lose it's repeater but how do you know 
>it's not something important? Do you wait for the lowest priority one 
>to stop transmitting? That may be the guy talking the longest.
>I'm not saying it's a bad plan, it just isn't usually explained 
>properly.

From a practicle standpoint you are correct, but in the trunked system
I know of, any mobile unit can be disabled from the control channel.
Therefore, you could theoretically turn off the transmitter on any
radio via the data channel.  One of the big advantages to trunking is
that the transmitter and receiver can be programmed out of a system if
they are stolen, etc.
-- 
Harold G. Peach, Jr.       ><>       N4FLZ       _%       hgpeach@s.ms.uky.edu
From: gedwards@ncratl.AtlantaGA.NCR.COM (Gordon Edwards)
Newsgroups: alt.radio.scanner
Subject: Re: what is wrong with my scanner?
Date: 7 Jan 93 18:13:34 GMT
Organization: NCR Engineering and Manufacturing Atlanta -- Atlanta, GA

In <1993Jan6.185918.879@uoft02.utoledo.edu> cscon0151@uoft02.utoledo.edu writes:
>That reminds me of something I saw in one of those electronics magazines.  I
>remember reading about being able to actually eavesdrop on a computer.  Does
>anyone know how this could be accomplished?  Not that I'm going to do it of
>course....;-)

Once I had an ADDS Terminal in the downstairs of the house... when it was
in use could go to another TV and see what was appearing on the ADDS terminal
by tuning to a certain channel... the picture wasn't very clear (couldn't
make out the individual letters) and the TV was an old black and white
one.

-- Gordon

-- 
=============================================================================
Gordon Edwards, N4VPH              |         "Nothing Unreal Exists"
NCR Engineering & Manufacturing    |
gedwards@ncratl.atlantaga.ncr.com  |  Kiri-Kin-Tha's First Law of Metaphysics
Newsgroups: alt.radio.scanner
From: mjr@netcom.com (Matthew Rapaport)
Subject: Re: Scanner sex?
Organization: Netcom Online Communications Services (408-241-9760 login: guest)
Date: Tue, 5 Jan 1993 05:13:48 GMT

I can't believe someone posted this story to this group. Not that I'm
offended, but I could well understand if some people were. The newsgroups
line shows this was originally posted to alt.sex.stories. As such I
consider it a STORY, better written then some, perhaps, and then again,
perhaps not... Anyway, its use of a scanner was purely a device to get
into the story, hardly meat for this group!



-- 
matthew rapaport     Philosopher/Programmer At Large      KD6KVH
           mjr@netcom.com     70371.255@compuserve.com
From: bennett@reg.triumf.ca (P.Bennett)
Newsgroups: alt.radio.scanner
Subject: Re: 800MHz Trunked Radio System Signals
Date: 5 Jan 1993 12:44 PST
Organization: TRIUMF: Tri-University Meson Facility
Distribution: world
NNTP-Posting-Host: reg.triumf.ca
News-Software: VAX/VMS VNEWS 1.41    

In article <9301051708.AA25415@deepthought.cs.utexas.edu>, PLAWS@UAFSYSB.UARK.EDU writes...
>On 4 Jan 93 08:07:39 GMT you said:
>>puma@halcyon.com (puma) writes:
>>> why CAN'T the system immediately turn over the repeater channel
>>> to the emergency unit?  What difference would it make if the first
>>> remote unit continued transmitting?
>>
>>Say it's a five-channel system and all four talk channels are in use.
> 
>But if the site controller reassigns a repeater to the guy with the
>Ebutton pushed, and it "ruthlessly pre-empts" the lowest priority user,
>won't it just drop that radio, transmitting or not?
> 

You are missing a vital point here.  A five channel system uses 5 _fixed_
frequency pairs, one for control, and 4 for talk. If all the channels are busy,
this implies that 4 different radios are transmitting, one on each talk
channel.   Now a fifth user pushes his "Emergency" button - The controller's
only option is to _wait_ until one off the present users stops transmitting,
then tell that user's radio (and those he was talking to) "sorry, no channel 
available". THEN, the controller can say to the Emergency unit "OK, go on
channel n".

If the mobiles continuously monitor the control channel while transmitting on
the talk channel, then the controller could tell one group "Shut up - we got an
emergency" at any time, and immediately give their channel to the unit needing
it.

Peter Bennett VE7CEI                | Vessels shall be deemed to be in sight
Internet: bennett@erich.triumf.ca   | of one another only when one can be
Bitnet:   bennett@triumfer          | observed visually from the other
TRIUMF, Vancouver, B.C., Canada     |                          ColRegs 3(k)
From: cscon0151@uoft02.utoledo.edu
Newsgroups: alt.radio.scanner
Subject: Re: The New Bearcat 2500XLT-D (and 8500XLT-D)
Date: 8 Jan 93 04:03:10 EST
Organization: University of Toledo, Computer Services

gedwards@ncratl.AtlantaGA.NCR.COM (Gordon Edwards) writes:
> On page 23 of Monitoring Times January issue Communications Electonics
> is advertising new Bearcat scanners... the 8500XLT-D and 2500XLT-D look
> particularly interesting...  
> 
> Anyone have any more information than appears in the ads?
> 
> I'd sure like to see how the 2500XTL-D compares to the Pro-43 in downtown
> Atlanta...
[stuff deleted]

> Frequency range: 29.0000 MHz - 1,300.000 MHz continuous coverage.
> Excludes 823.9875 - 849.0125 and 868.9875 - 894.0125 MHz.
> Due to high demand for this product, allow 120-180 days for delivery A.R.O.
> 
> The Bearcat 2500XLT-D gives you pure scanning pleasure with continuous band
> coverage to 1,300 MHz in a handheld scanner.  The Bearcat 2500XLT scanner has
> 400 programmable channels with 20 scanning banks, 20 priority channels,
> automatic frequency storage, VFO knob, instant weather, speedy turbo scan,
> illuminated LCD display, reception counter, step select, and much more.  
> Includes antenna, carrying case with belt loop, ni-cad battery pack, 
> AC adapter, and earphone.
> 
> -- Gordon

I wonder if the unit uses upward conversion?  With the new scanner bill coming
into effect within a year, I wonder how Uniden 'locked out' celluar?  And if the
diode 'lock out' method won't satisfy the new law (just a guess)...  It makes
me wonder if it might of been put in an IC...

Later...

Brad Steinman
University of Toledo Computer Services
cscon0151@uoft02.utoledo.edu
Newsgroups: alt.radio.scanner
From: kh@sei.cmu.edu (Kurt Haverstock)
Subject: Re: Motorolla anit-scanner corldless telephones
Organization: Software Engineering Institute
Distribution: usa
Date: Thu, 7 Jan 1993 14:38:34 EST





Ramsey sells a voice-inversion encryption/decryption kit for somewhere in
the $30 range.


Kurt
From: plaws@uafhp.uark.edu (Peter Laws)
Newsgroups: alt.radio.scanner
Subject: Monitor America, 2nd Ed.
Date: 9 Jan 1993 21:38:47 -0600
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu


So?  What do people think of the 2nd Ed.?  

I think it's a worthy successor to the original.  I especially liked the
Arkansas section!

8-)  8-)

Peter Laws|GEnie:P.LAWS1|"The '90s are gonna make the '60s|plaws@uafhp.uark.edu
n5uwy@ka5bml.ar.usa.noam| look like the '50s"  --D. Hopper|plaws@uafsysb.bitnet


Newsgroups: alt.radio.scanner
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: what is wrong with my scanner?
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Mon, 4 Jan 1993 21:07:37 GMT

larsenp@mace.cc.purdue.edu (Paul Larsen) writes:
: I just received a Bearcat 855XLT for Christmas.  I like it quite a bit except
: for one thing.  There are certain frequencies which it will pick up permanent
: static on no matter what the squelch setting is at.  When I check these 
: frequencies with my 100XLT, I do not pick up any of this static.  I know that
: this is not right and I was wondering if I am doing something wrong or if I
: should send my scanner to the company.  Any advice is appreciated.  Please
: reply to:

... delided ...

: By the way, one of the frequencies I am having problems with is a heavily
: used frequency in my area, so I am pretty sure that there shouldn't be this
: problem with it.

It may be that you are hearing birdies. These vary, depending on the model
of receiver - all receivers have them. 

Try removing the antenna from the scanner. If the static remains at the
same level, then it is coming from inside your radio. You could try calling
Uniden and asking them if there is a birdie at that frequency.

Bill
From: PLAWS@UAFSYSB.UARK.EDU
Newsgroups: alt.radio.scanner
Subject: Re: 800MHz Trunked Radio System Signals
Date: 5 Jan 1993 15:56:51 -0600
Organization: University of Arkansas, Fayetteville
NNTP-Posting-Host: cs.utexas.edu

>[snip snip... stuff deleted]
>I guess I started this mess.  Sorry about that.

Nahh...think nothing of it...


>evaluate the bid.  I guess I learned something today.

You're not the only one!

I'm surprised though.  I'd hate to think that if the room flashed or
my partner got shot or the Narcan woke up the OD and he got pi****, that
I might have to wait until the Garbage collector and the metermaid and
the animal control guy stopped talking...

Maybe VHF-HI *is* better. 8-(

Thanks for doing the footwork, Jack.


Peter

Peter Laws              |"The '90s are gonna make the '60s|plaws@uafhp.uark.edu
n5uwy@ka5bml.ar.usa.noam| look like the '50s"--D. Hopper  |plaws@uafsysb.bitnet
From: arny@vesta.unm.edu (L Alan Dye)
Newsgroups: alt.radio.scanner
Subject: Rat Shack Amplified Antenna...
Date: 8 Jan 93 17:55:34 GMT
Organization: University of New Mexico, Albuquerque
To: cscon0151@uoft02.utoledo.edu, Sherrod.Munday@launchpad.unc.edu, urbina@novax.llnl.gov, mjc@iegate.mitre.org, brett@surfpix.princeton.edu

There have been a lot of requests of late for info on the Radio Shack portable amplified antenna mentioned earlier on this group. I recently purchased and modified one myself, so here is all I know (or can recall off hand):

The antenna runs ~ $25 w/o the additional parts for modifications. The Shack (conveniently) doesn't carry any 1/8 to BNC male conversions pre-fab, so you must build one yourself if for want to use this antenna for a scanner. I toyed with the idea of building this conversion so that I could also use the antenna for my SW receiver, but the included specs indicate that it is designed to receive (or best receive) much higher freq's than SW. The stated range is 50-900 MHz (not bad for such a little toy), and th






e stated battery life (3V, i.e. 2 AA cells) is 50 hours of continuously amplifying use (again, not bad for such a little box). Once I had decided to scrap the 1/8 plug (SW runs from about 2 to 22 MHz, so it is not much good for my SW receiver), I cut off the original plug and cord, down to about 3 or 3.5 inches. Since RS didn't have a straight solder-on BNC male plug, I had to hack together one from a combination of a solder-on Motorola plug plugged into a Motorola jack to BNC male plug converter (there is






n't actually much signal loos throught this ugly combo...). Anyway, from there, I removed the belt clip from my scanner and used wide strips of self-adhesive Velcro to attach the amp. antenna to the back of the unit. This actually works very well, making the entire assembly only about 1/2 inch thicker with collapsable dual antenna rods which fold in neatly to the sides of the scanner and making it (@ least to my taste) much more portable. The reception is much better and so far the combination has worked e






xcellently for me. Anyway, off hand, I believe the important specs were as follow:
	Power supply 3V (2 AA batts) or included power supply
	Freq Range: 50 to 900 MHz
	Gain (Max): 10dB
	Operating time with amplification on: 50 hours.
	Cat. #: (i think... just off the top of my head) 15-1746
If you use you radio inside frequently as I do and would like some inexpensive way to increase/improve reception, I would highly recommend this little gadget.

Knock yourselves out...
Arny
  
----------------------------------------
Alan Dye

Professional Spectator

Address E-mail to:
      arny@carina.unm.edu
----------------------------------------
From: rens@ubvmsb.cc.buffalo.edu (Frank Rens (Associate Director))
Newsgroups: alt.radio.scanner
Subject: Re: Radio Shack Service Manuals?
Date: 5 Jan 93 00:35:00 GMT
Organization: University at Buffalo
News-Software: VAX/VMS VNEWS 1.41

In article <1iak4jINN199@usenet.INS.CWRU.Edu>, ba562@cleveland.Freenet.Edu (James R. Lytle) writes...
> 
> 
>What is the catalog number of the service manual for the
>PRO-34 scanner?
> 

	20-135/9135

>What is the price of the service manual?
> 
	It wasn't much...less than $10 I believe.

>Should the local Radio Shack be able to order this for me or
>do I have to order it directly from Tandy?

	I've ordered manuals from two different stores with no problem.  The
part numbers are on their computer/cash registers.  They enter the catalog
number of the scanner and the manual part number is displayed on request. 

>Could those of you who already have the service manuals for
>their Radio Shack scanners please post those catalog
>numbers? It would save those of us who would like these
>service manuals a lot of time and trouble.

	Pro-2006...catalog number 20-145/9145