Phoenix Rising BBS/phoenixrising.zip/phoenixrising/tele-dig/td14-086.txt

Text File | 1994-02-17 | 25KB | 604 lines

TELECOM Digest     Thu, 17 Feb 94 00:56:00 CST    Volume 14 : Issue 86

Inside This Issue:                          Editor: Patrick A. Townson

    An Inside Look at the Panasonic KXT-9000 (Joshua Hosseinoff)
    Program For Microwave Radio Links? (Dino Moriello)
    Help Needed Building Voice Mail Indicator Light (Marc A. Sarrel)
    Big Brother Inside Logo (Dave Banisar)
    Cellular/One * Codes (Johnny J Chin)
    Australian Broadband Services Inquiry - Call For Submission (T Worthington)
    Symposium on Design Productivity Improvement (Patrick Pype)
    Power Supply For Digital Cordless Phone ([e-mail])

TELECOM Digest is an electronic journal devoted mostly but not
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The Digest is compilation-copyrighted by Patrick Townson Associates of
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long distance resale services including calling cards and 800 numbers.
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TELECOM Digest is gatewayed to Usenet where it appears as the moderated
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----------------------------------------------------------------------

Date: Wed, 16 Feb 1994 23:48:51 -0500
From: [e-mail] (Joshua Hosseinoff)
Subject: An Inside Look at the Panasonic KXT-9000


I've had my Panasonic 900MHz phone for about three months now and I
thought the Digest readers might be interested in some of my observa-
tions on it.  I use the phone in my college dormitory where I get
excellent coverage one floor above my room and two floors below, and
decent coverage up to three floors above and all the way down to the
basement.  I currently am on the third floor of my building and I've
tested the range outside the building and I've been able to get decent
coverage up to a half block away (about 150 feet) outside, and
absolutely no reception inside a different building than the base
unit.  I recently tested it by putting the base by a window on the eighth
floor of the dorm and I was very surprised to see the range increase
alot.  I was able to go about 1 1/2 blocks away, and I could even
connect while in another building.

My next experiment was to open up the base unit and have a look
inside.  The first thing I noticed was two dipswitches located right
next to where the tone/pulse switch is.  The dipswitches were both set
to the 0 position.  The dipswitch on the left did nothing as far as I
could tell.  The right dipswitch changed between a fast pulse dialing
and a slow pulse dialing, both of which dialed properly.  It was
originally set to the 0 position for slow pulse dialing. They have no
effect on touch tone dialing as far as I can tell.  The other
interesting things were some little knobs recessed inside a metal
cage.  Most of them can be adjusted with a small screwdriver.  Here is
a list of the labels on the cage and my notes on what they did:

30db: this was only a hole in the metal cage and no knob was visible that
        I could see.
20db: the knob in here affects the transmission between the base and handset.
        In a certain position, the base will page the handset but the handset
        won't hear it.  However, if the handset pages the base, the base will
        hear it.
Level: same as 30db.
Det:   same as 30db.
Tx Pwr: this knob didn't seem to do much.  It would either be in a position
        that worked or one that didn't work with no in between level.
        This knob would spark a little if I adjusted it while the base
        and handset had a connection.
Rx VCO: same as Tx Pwr.
Tx VCO: same as Tx Pwr.
Fre:    I assume this meant frequency, it had some effect on the voice
        quality ranging from totally garbled to crystal clear.
Base Unit Upper: same as 30db.
IFT:  didn't do anything at all.
Dev: didn't do anything at all.

I assume that opening up the base and playing around with the knobs
voids the warranty and is a shock hazard so the usual disclaimers
apply.


Josh Hosseinoff ------------ [e-mail]

------------------------------

From: [e-mail] (Dino Moriello)
Subject: Program For Microwave Radio Links
Date: Wed, 16 Feb 1994 23:17:39 -0500
Organization: VE2DM


I'm a microwave radio tech.  My company has over 300 microwave sites
and I have the following question:

We installed a hop last summer that runs east-west and we noticed that
at a certain time during the summer the sun got right in line with one
of the dishes causing the noise level on the receiving antenna to go
sky high and cause a cut off of the link during the entire time that
the sun is in line with the two dishes at 7GHZ.

Is there a way to predict when these outages will occur, either using
a software program or by hand?


Thanks for reading this.

Dino Moriello
PO BOX 105       Internet: [e-mail]
Radisson,Quebec  Compuserve: 76120,1472  Tel.: [phone]
CANADA  J0Y 2X0  Packet:   VE2DM@VE2FKB        819-638-8281
Please E-mail replies since I can't always read the USENET postings.

------------------------------

From: [e-mail] (Marc A. Sarrel)
Subject: Help Needed Building Voice Mail Indicator Light
Date: 17 Feb 1994 00:32:33 GMT
Organization: Jet Propulsion Laboratory


Does anyone have plans to build a small (less than a few cm^3) circuit
that would detect the presence of messages and flash an LED or
something?

Alternatively, I have a SPARCstation LX (Solaris 2.3) sitting on my
desk with a couple of unused ISDN ports.  Is there some software that
would allow me to run my phone line through those ports and give me an
indication on my screen when I have messages (sort of like xbiff)?

We're soon to get Pacific Bell voice mail in our section at work.  The
voice mail is already installed where I work, but it is not
universally used.

Anyway, the way the system is set up, we have to lift the handset and
listen for the beeps to tell if we have messages.  We have to pay
extra to get a phone with an indicator light or even more for a phone
with an LCD type display.  That's not going to happen.

I'm not a EE, but I can probably build the thing if it's not too
complex ...

Also, please reply by email.  I don't regularly read this newsgroup


advTHANKSance

Marc Sarrel  Jet Propulsion Laboratory
[e-mail]    N7OLI

------------------------------

Organization: CPSR Washington Office
From: Dave Banisar <[e-mail]>
Date: Wed, 16 Feb 1994 10:24:49 EST
Subject: Big Brother Inside Logo


  Big Brother Inside Logo

A parody of the Intel's Logo modified for the Clipper Chip is now
available for use for stickers, posters, brochures etc.

The Big Brother Inside graphic files are now available at the CPSR
Internet Archive - ftp/gopher cpsr.org /cpsr/privacy/crypto/clipper

big_brother_inside_sticker.ps (postscript-scale to fit your project)
big_brother_inside_logo.gif (Color GIF - good startup/background screen)
big_brother_inside_picts_info.txt (Info on the files)

The files have also been uploaded to America Online in the Mac Telecom
and Graphic Arts folders.

big_brother_inside_sticker.ps is a generic postscript file, created in
CorelDraw. The postscript image lies landscape on the page, and consists
of the intel-logo's ``swoosh'' and crayon-like lettering on the inside.

This design was originally created for the sticker project: the image
was screened onto transparent stickers 1" square for the purpose of
applying them to future clipper-chip products. ([e-mail]
was in charge of that project; as far as I know he's still
distributing them for a small donation to cover printing & mailing
costs).

The design was created by Matt Thomlinson <[e-mail]>

------------------------------

From: [e-mail] (Johnny J Chin)
Subject: Cellular/One * Codes
Date: 16 Feb 1994 03:20:49 -0500
Organization: Onesimus Enterprises International, Inc.


I am a Cellular/One customer and I was wondering does anyone have a
complete list of the * (star) codes?  In other words, like in the NYC
area, I only know of one ... *FILM to get info on movies.

Any and all replies appreciated.  I will post a summary of all replies.


Thanks,

Johnny J. Chin ([e-mail])
LAN/WAN/PC Consultant/Reseller   Onesimus Enterprises Int'l Inc.


[TELECOM Digest Editor's Note: The thing to remember is that this will
vary from one community to the next. What works on Cellular One in
Chicago won't necessarily -- or even probably -- work in New York, etc.
Each 'Cellular One' company is an independent entity doing its own thing
and no single standard applies.  PAT]

------------------------------

From: [e-mail] (Tom Worthington)
Subject: Australian Broadband Services Inquiry - Call for Submissions
Organization: Australian Defence Force Academy, Canberra, Australia
Date: Wed, 16 Feb 1994 06:42:46 GMT


On 8 December 1993, the then Minister for Communications, Mr. David
Beddall, announced an inquiry into issues relating to the delivery of
new communications services to homes, schools and businesses.

These services could provide entertainment to consumers in the form of
video-on-demand and interactive TV, or information in the form of
electronic newspapers, and electronic and video mail.

The Broadband Services Expert Group was established to conduct the
inquiry, drawing its twelve members from industry, users, carriers, the
union movement, and research, education and finance areas.

The Group is now calling for submissions from interested groups and
the public.  This reflects both the Government's desire that the Group
consult as widely as possible to ensure all interested individuals and
organisations have an opportunity to contribute to the study, and a
recognition of the potentially major implications of the availability
of broadband services for the Australian community.  Invitations to
make submissions were published in major newspapers on Tuesday 1
February.

A discussion paper identifying a range of issues relevant to the study
follows.  The paper lists the Terms of Reference and includes details
on how to make submissions.  It is expected that most submissions will
be mailed, but an e-mail address is also provided.  The Expert Group
is seeking submissions by 18 March to enable the Group to produce a
draft report for public discussion by mid-1994.


Geoff Luther   Manager - Secretariat
Broadband Services Expert Group
GPO Box 2154  Canberra  ACT  2601
E-mail:   [e-mail]
4 February 1994

                   -------------------------------

Posted by Tom Worthington <[e-mail]>, Director of the
Community Affairs Board, Australian Computer Society Inc., as a
community service.  16 February 1994

NOTE: The discussion paper can be found on FTP archive "archie.au" in
directory "ACS/Broadband-Enquiry/".

The announcement and paper are distributed at the request of the
Secretariat of the Broadband Services Expert Group. The views
expressed are not necessarily those of the ACS. Please direct all
comments to the Secretariat. Submissions close Friday 18 March.

This enquiry was first mentioned by Paul Keating, Prime Minister of
Australia, in an election speech 24 February 1993. At that stage it
was to be limited to optical fibre networking, but was later
broadened.

ABOUT THE ACS: The Australian Computer Society is the professional
association in Australia for those in the computing and information
technology fields. Established in 1966, the ACS has over 14,000
members and on a per capita basis is one of the largest computer
societies in the world. Activities are announced in the Usenet
newsgroup "aus.org.acs".  Information is available via e-mail from
[e-mail] or the Gopher at acs-gopher.mit.csu.edu.au Port=1605
courtesy of Charles Sturt University.

------------------------------

From: [e-mail] (Patrick Pype)
Subject: Symposium on Design Productivity Improvement
Organization: IMEC, Belgium
Date: Wed, 16 Feb 1994 10:35:21 GMT


Improving Design Productivity for DSP Telecom & Multimedia Implementations

                          Symposium & Hands-on
                              organized by

                        IMEC   Mentor Graphics/EDC

in cooperation with HP, Texas Instruments, IEEE Benelux Section

A "DSP Valley" initiative -

This symposium is the first in a series organized by the IMEC-EDC
Center of CompetenceS, member ob the RDSP Valley group in Leuven.  The
symposium will form the launch of the IMEC-EDC Center of Competence.
The goal of this cente is to perform initial design services and
software customization in the domain of DSP system design, based on
research results from IMEC and commercial DSP design tools from EDC.
The DSP Valley group is a joint marketing initiative of the research
centers IMEC and ESAT (KU Leuven), and the companies Easics,
EDC/Mentor Graphics, ISI and ITCL.

Who should attend?

The course in oriented to developers of telecom and multimedia systems,
system implementers, DSP programmers, users of DSP processors and VLSI
designers.

Focus of the SYMPOSIUM

The current ongoing digitization of the world has created a strong
need for highly complex signal processing under stringent real-time
constraints.  Digital signal processing has experienced a booming
growth in all types of applications, ranging from speech and image
processing, via telecomunications and audio/video, towards the recent
multimedia revolution.  The aim of this course is to satisfy the need
for an international symposium which bridges the gap between the DSP
system designers community and the IC-designers community.  The goal
is to reduce time-to-market between a systems idea and its final
implementation in a product.

Course content

The course will concentrate on the description, specification, simulatin and
implementation of DSP sustems, covering the full range of commercial DSP
processor solutions to full customized VLSI chips.
This will be done by means of:

  - Efficient multiformat system specifications consisting of a mixture of
    schematics in terms of predefined functional library blocks and textual
    editing supporting multiple languages, such as VHDL, C, C++, Verilog,
    DFL and so on.
  - System-level simulation
  - Fast system-level exploration by comparing implementation alternatives
    in terms of high-level models of cost, area, throughput, power dissipation.
  - Studying the impact of implementation decisions at algorithmic level and
    vice-versa.

Course material

The participants will be provided with a comprehensive set of lecture notes
which will be distributed upon arrival at the course location.  The material
is not available for sale outside the course.

Symposium Programme

April 18

1.      DSP for tomorrow
        *       The importance of DSP in telecom and multimedia
        *       The role of DSP Valley and the "DSP Center of Competence"
        *       The history and evaluation of the CATHEDRAL/DSP StationTM

2.      Demonstration
        *       Explanation on demonstrator design used throughout symposium

3.      Architectures and Design Methods for DSP
        *       DSP hardware architectures and implementation targets
        *       DSP design flow and optimisation steps

4.      Specification or simulation of DSP Systems
        *       A global specification language for DSP algorithms
        *       Synchronous & Asynchronic Data Flow Simulations
        *       Simulation and analysis libraries

April 19


5.      Implementation of DSP systems on microcoded processors
        *       Architecture Model
        *       MISTRAL-II design route

6.      Extensions to hardwired implementations
        *       Architectural extension
        *       New optimisation tasks for datapath synthesis
        *       Optimization of memory management


April 20

7.      Final implementation issues
        *       Link of architectural synthesis tools to commercial CAD-tools
                (Mentor Graphics, Cadence, Synopsys)
        *       VHDL-interfaces

8.      DSP filter analysis & design
        *       Architecture Model
        *       MISTRAL-1 Design Route

9.      Commercial DSP-Processor solutions
        *       Code generation for TI and Motorola processors
        *       Emulations in multi processors

10.     Future strategic research directions
        *       Evolution to a design technology for heterogeneous systems
        *       Retargetable code generation
        *       Synthesis for interprocessor communication

Program Hands-on sessions

Participants will have the occasion to follow a complete demonstrator
design during the first three days.  During two additional days of
hands-on sessions they will have to implement applications such as a
Viterbi decoder and a modulator/demodulator.

The complete design flow will be experienced:
        1.      Explanation of application
        2.      Description in DFL
        3.      Simulation
        4.      Design space exploration (trade-offs different implementations)
        5.      Implementation
        6.      Final improvements with new datapath optimization
        techniques


Please complete and return this form (email, fax, letter) :


IMEC/EDC Symposium
Annemie Stas   IMEC-VSDM
Kapeldreef 75  B-3001 Leuven
Belgium
Fax: [phone]  e-mail: [e-mail]

IMEC/EDC Symposium

Surname/Family Name...................................................
Organisation..........................................................
Address...............................................................
 .....................................................................
Country...............................................................
Post Code............................
Telephone.............................................................
Fax.......................................
e-mail: ..............................................................

I subscribe to:

O       Symposium, April 18-20, price 25000 BEF (industry)
O       Symposium & Hands-on Sessions, April 18-22, price 40000 BEF (industry)
O       Symposium, April 18-20, price 15000 BEF (university/IEEE)
O       Symposium & Hands-on Sessions, April 18-22, price 25000 BEF
                                                (university/IEEE)

IEEE Membership Nr. ...........................
I wish to make a hotel reservation in

O       Hotel Arcade, Leuven
        (2350,- BEF per night, payable upon departure at hotel desk)
        Arrival........................................
        Departure...................................

O       Begijnhof Congres Hotel, Leuven.
        (3650,- BEF per night, payable upon departure at hotel desk)
        Arrival........................................
        Departure...................................

We have an option on these hotel rooms till February 25, 1994.  Reservation
requests received after this date are subject to availability.

If you want to obtain a travel grant, please add an application letter.

Signature       Date

Venue

The symposium and hands-on sessions will be held at IMEC, Kapeldreef
75, 3001 Leuven, Belgium.

Accomodation

Hotel Reservation is possible if subscription takes place before
February 28.  Reservation requests received after this date are
subject to availability.  Please fill out the registration leaflet,
make your hotel choice, and inform us on your arrival and departure
days.  You will receive a confirmation at the beginning of March.

Travel grants

A few travel grants will be available in the scope of the European LIP
(Large Installation Plan) programme for interested European attendees.
Applications should be sent to the Chairman not later than February
15, 1994.

General Chair

Patrick Pype

Program Chair

Herman Beke
Ivo Bolsens
Hugo De Man
Dominique Genin

Local Organization and Secretariat

Annemie Stas

Instructors

Dr. Ivo Bolsens received the Electrical Engineering Degree and Ph.D.
degree at the Katholieke Universiteit Leuven, Belgium.  Since 1981 he
was member of the CAD group at the ESAT Laboratory of the Katholieke
Universiteit Leuven, Belgium, where he was working on the development
of an electrical verification program for VLSI circuits and on
mixed-mode simulation.  In 1984 he joined the IMEC-Laboratory, where
he was doing research on the development of a knowledge based
verification program for VLSI circuits, exploiting AI tools.  Since
1989 he became head of the Applied Behavioural Synthesis group.  In
this context he is responsible for the application and development of
the CATHEDRAL-II silicon compilation environment for real-time signal
processing applications.

Dominique Genin received the degree of Electrical and Software
engineer from the University of Liege, Belgium in 1980.  He got the
montefiore prize in 1981.  He is currently director at the European
Development Center of Mentor Graphic, responsible for the development
of the DSPStation.  From 1986 to 1989, Dominique was the manager of a
research team at Tektronix working on object oriented compilers and
databases.  Prior to tektronix he was project leader at the research
center of Bell telephone.

Mark Van Canneyt received the degree of Industrial Engineer Micor
Electronics form the Industriele Hogeschool van het Rijk, Gent.  He
received the RBest Engineer 89S award from the same institute.  Since
1990 he has been Application Engineer for Mentor GraphicsU DSP
station.  He is currently Technical Marketing Engineer, responsible
for the European DSP market.

Prof. Francky Catthoor received the Engineer degree and a PhD. in El.
Eng. from the KU Leuven, Belgium in 1982 and 1987 respectively.  Since
1987, he has headed research domains in the area of architectural and
synthesis methodologies, within the VSDM division at IMEC.  His
current reserach activities mainly belong to the field of application-
specific architecture design methods with emphasis on memory architectures
and system-level transformations.


Pype Patrick              e-mail: [e-mail]
Imec vzw.                 Tel.:   [phone]
Kapeldreef 75             Fax.:   [phone]
3001   Leuven,  Belgium   Telex:  26.152

------------------------------

From: [e-mail] (Flying Dutchman)
Subject: Power Supply For Digital Cordless Phone
Organization: University of Victoria, Victoria, BC, Canada
Date: Tue, 15 Feb 94 22:29:03 GMT


I need a 3 V supply for the "new" logic chips.  I intend to use only
three AA batteries.

I have tried simulating a transistor/zener regulator but with a load
of about 10 ohms, the voltage drops too low.  I have not been able to
find an IC regulator that will operate at such a low voltage (only a
0.6 V drop).  A voltage divider setup is no good since the voltage
will vary from about 3-4 V from the NiCAD batts.

Any ideas?  Please forward to my E-mail address ONLY.  I don't want to
switch batteries, or add more of them.


Thanks,

Mark

------------------------------

End of TELECOM Digest V14 #86
*****************************