Date: Fri, 11 Mar 94 11:01:35 PST
From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
Errors-To: Info-Hams-Errors@UCSD.Edu
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Precedence: Bulk
Subject: Info-Hams Digest V94 #277
To: Info-Hams
Info-Hams Digest Fri, 11 Mar 94 Volume 94 : Issue 277
Today's Topics:
* SpaceNews 14-Mar-94 *
1x1 Callsigns? (2 msgs)
[News] Auctioning Rules set up by FCC
Alinco DJ-F1T mod
Best cars for mobile HF/VHF??
copying cw on typewriters
Dayton parking
Definition of CW speeds
Good car for HF/VHF mobile??
Need LA5VK's address
QSL Route, help.
Where can I find "netrom"?
Yaesu 2400H recs
Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
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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: 11 Mar 94 16:52:54 GMT
From: news-mail-gateway@ucsd.edu
Subject: * SpaceNews 14-Mar-94 *
To: info-hams@ucsd.edu
SB NEWS @ AMSAT $SPC0314
* SpaceNews 14-Mar-94 *
BID: $SPC0314
=========
SpaceNews
=========
MONDAY MARCH 14, 1994
SpaceNews originates at KD2BD in Wall Township, New Jersey, USA. It is
published every week and is made available for unlimited distribution.
* SPACE CALENDAR *
==================
March 1994
Mar ?? - TC-2C Launch
Mar ?? - Solidaridad II Ariane Launch
Mar 02 - GPS Launch
Mar 05 - 15th Anniversary, Voyager 1 Jupiter flyby
Mar 08 - Galileo, Ida Data Playback, Part 2 (for 3 months)
Mar 14 - Albert Einstein's 115th Birthday
Mar 25 - DSPSE (Clementine) Lunar Mapping Orbit Change
Mar 27 - 25th Anniversary, Mariner 7 Launch (Mars Flyby Mission)
Mar 29 - 20th Anniversary, Mariner 10, 1st Mercury Flyby
Mar 31 - Galaxy 1R Delta 2 Launch
Mar 31 - STS-59, Endeavour, SRL-1
[Info via NASA/JPL]
* OSCAR BANDPASS *
==================
SUNDAY 6:
145898.6 TI5RLI 2129Z AO-13
145889.6 VP2EEE 2119Z AO-13
145906.9 TI5RLI 2003Z AO-13
MONDAY 7:
145896 HL9KT 0541Z AO-13
145885.3 VP2EEE 2043Z AO-13
TUESDAY 8:
145874.0 W3QBK 2037Z *** cross SAT AO13/AO10
145889.0 VP2EEE 2024Z AO-13 QSL via KK3K
WEDNESDAY 9:
145900.3 TU2OJ 1837Z AO-13 laut
145889.8 YO3AC 1837Z Andy AO-13
145885.0 VP2EEE 1815Z AO-13
145909.0 8P6SM 1621Z AO-13
[Info via Sergio, IK5AAX]
* UoSAT-OSCAR-11 NEWS *
=======================
The following is from the UoSAT-OSCAR-11 satellite control center and is
currently being transmitted by the spacecraft on its VHF downlink:
Surrey Satellite Control Centre
University of Surrey
Guildford, Surrey GU2 5XH
England
February 8, 1994
Greetings to all UO-11 users around the world.
As followers of this mission know, during the past several months UO-11 has
experienced some problems which have led to a disruption of regular
services. Thanks to the efforts of G8NOB and a core of engineers at UoSAT,
we can report that the spacecraft has been returned to a reasonable
operating state.
We are now going to take this opportunity to make some adjustments to the
UO-11 operating schedule. For the past several weeks the spacecraft has
been exclusively transmitting binary WOD and telemetry data. This step has
been taken to allow us to download the maximum amount of data as possible
for diagnostic purposes. This will continue for the foreseeable future.
However, we understand that many of the UO-11 tracking stations around the
world are only equipped for ASCII data format, therefore we are proposing
to set aside two days a week, Wednesday and Saturday, where the primary data
format will be ASCII. The spacecraft will transmit ASCII WOD, telemetry and
bulletin material during this period in addition to short durations of
binary telemetry. In addition, ASCII bulletin material will be included in
the daily transmission cycle so that bulletin material may be available
daily.
As of 09-Feb-94, the 2.4 GHz beacon aboard UO-11 has been activated. This
beacon will be left on whole orbit as long as the power budget permits. We
would be interested in reception reports and observations of the 'S' band
transmissions from UO-11.
More activities are planned, memory space aboard the spacecraft limits us
from going into more detail in this bulletin. Watch this space for more
details. We are interested in your comments, please let us hear from
you at the address above.
73, G0SYX for UoSAT
* FO-20 SCHEDULE *
==================
The FO-20 command station announced that FO-20 will be placed in Mode JA
(Analog transponder mode) during Field Day 1994 (25-Jun-94 18:00 UTC through
26-Jun-94 18:00 UTC).
The current operating schedule is as follows:
Analog mode:
09-Mar-94 07:05 -to- 16-Mar-94 07:30 UTC
23-Mar-94 07:52 -to- 30-Mar-94 08:15 UTC
Digital mode: Unless otherwise noted above.
[Info via Kazu Sakamoto, JJ1WTK]
* AWARD NOMINATIONS SOUGHT *
============================
The Westlink Report ham radio newsletter indicates that the nominating
period for its annual Young Ham of the Year Award closes on Saturday
April 30th.
The Westlink Report Young Ham of the Year award was conceived back in 1986
to honor the younger members of the Amateur Radio Community.
This is not a prize drawing or lottery! There is no filing fee or any other
charge to submit a nomination. However, the sponsors of this young peoples
award have set very strict criteria for who may even be nominated. A
nominee must be age 18 or younger, must hold a valid United States Amateur
Radio license issued by the FCC and he/she must have, in the eyes of the
judges, made a significant contribution to the nation, to his/her community,
to the Amateur Service (or any combination there-of) through the use of
Amateur Radio. All nominating packages must include detailed information
on and proof of any claim made for the person being proposed to receive the
award.
By way of example (and exaggeration) -- nominating a 5 year old Extra Class
ham whose only achievement has been attaining his/her Extra class license by
age 5 would only prove that wrote memorization is possible in a young child
and nothing more. Such a nomination would be rejected by the judges. Let
that same 5 year old Extra run an Emergency Net for 72 hours following a
7.7 earthquake and you have a situation where the judges would give careful
consideration.
With corporate underwriting from Yaesu USA Corporation, the 1994 winner will
receive a trip to the Sea Pac convention in Seaside Oregon (June 4-5), a
piece of ham radio equipment and a special plaque denoting his or her
accomplishments to the Amateur Radio service.
All nominations must be submitted on an official application available for
a Self Addressed Stamped Envelope to the Westlink Report Young Ham of the
Year, 28197 Robin Avenue Saugus California 91350. (Application requests not
accompanied by an SASE will be discarded.)
The name and call sign of the individual selected as the 1994 Westlink
Report Young Ham of the Year for 1994 will be announced in early May.
For further information please contact Burt Hicks WB6MQV at (805) 251-5558
or Bill Pasternak WA6ITF at (805) 296-7180
[Info via Bill Pasternak, WA6ITF]
* FEEDBACK/INPUT WELCOMED *
===========================
Mail to SpaceNews should be directed to the editor (John, KD2BD) via any
of the following paths:
FAX : 1-908-747-7107
PACKET : KD2BD @ N2KZH.NJ.USA.NA
INTERNET : kd2bd@ka2qhd.ocpt.ccur.com -or- kd2bd@amsat.org
MAIL : John A. Magliacane, KD2BD
Department of Engineering and Technology
Advanced Technology Center
Brookdale Community College
Lincroft, New Jersey 07738
U.S.A.
<<=- SpaceNews: The first amateur newsletter read in space! -=>>
/EX
--
John A. Magliacane, KD2BD * /\/\ * Voice : 1-908-224-2948
Advanced Technology Center |/\/\/\| Packet : KD2BD @ N2KZH.NJ.USA.NA
Brookdale Community College |\/\/\/| Internet: kd2bd@ka2qhd.ocpt.ccur.com
Lincroft, NJ 07738 * \/\/ * Morse : -.- -.. ..--- -... -..
------------------------------
Date: 11 Mar 1994 15:35:17 GMT
From: ihnp4.ucsd.edu!usc!yeshua.marcam.com!charnel!olivea!news.bbn.com!news!levin@network.ucsd.edu
Subject: 1x1 Callsigns?
To: info-hams@ucsd.edu
In article <2lo1ii$g94@oak.oakland.edu> prvalko@vela.acs.oakland.edu (prvalko) writes:
Path: news.bbn.com!seismo!lll-winken.llnl.gov!overload.lbl.gov!dog.ee.lbl.gov!ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!news.msfc.nasa.gov!sol.ctr.columbia.edu!newsxfer.itd.umich.edu!news1.oakland.edu!vela.acs.oakland.edu!prvalko
They should allow for ANY combination of legitimate US-amateur allocated
calls. If I remember correctly, In the US, the call must BEGIN with "A,
K, N, or W" then have a SINGLE DIGIT NUMBER and followed by at LEAST one
letter.
No 1x1s with A are allowed: US only has AA through AL. AM - AZ
and A0 - A9 belong to other countries.
SO... W8A, would be OK.
I already sent in a request for MY choice, NNN6N.
The IARU or ITU rules require at most two letters before the single
digit. (Or one letter and one digit, for such prefixes as P4.) So
this is not a valid request.
/JBL KD1ON
=
Nets: levin@bbn.com | "GO TO JAIL. Go directly to jail. Do not pass
POTS: (617)873-3463 | Go. Do not collect $200."
KD1ON (@KB4N.NH.USA) | -- Parker Brothers
------------------------------
Date: 11 Mar 1994 14:37:31 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!news.ans.net!malgudi.oar.net!news.ysu.edu!yfn.ysu.edu!as779@network.ucsd.edu
Subject: 1x1 Callsigns?
To: info-hams@ucsd.edu
A glance at the ITU Callsign prefix allocations will show that
the United States is assigned "A" prefixes in the range AA through
AL, so a A1A call is not permitted under current International
agreements. The W,K and N series can be used as single letter
prefixes because the US is allocated WAA-WZZ,KAA-KZZ,NAA-NZZ.
Chuck Reti WV8A Detroit,MI
------------------------------
Date: 11 Mar 1994 15:31:08 GMT
From: ihnp4.ucsd.edu!usc!yeshua.marcam.com!charnel!olivea!news.bbn.com!news!levin@network.ucsd.edu
Subject: [News] Auctioning Rules set up by FCC
To: info-hams@ucsd.edu
In article <CMGsJ6.EqB@news.Hawaii.Edu> jherman@uhunix3.uhcc.Hawaii.Edu (Jeffrey Herman) writes:
While we're on the subject, until recently I had an older FT-101 xcvr -
it was an early 70's model - analog tuning and solid state except for
PA tubes in the final. The band switch included an 11 meter position.
This 11m slot has always perplexed me, since the amateur service lost
11m back in the 50's; why would a 70's era rig still carry 11m?
On the FT-101EE (a slightly later model) that band was RX only. Same
for the 30 meter band, which I assumed was there so one could receive
the 10MHz time standard.
/JBL KD1ON
=
Nets: levin@bbn.com | "A religion that must depend upon the state to do
pots: (617)873-3463 | what it cannot do is not worthy of existence."
KD1ON (@KB4N.NH.USA) | -- Robert H. Meneilly
------------------------------
Date: 11 Mar 94 07:25:12 GMT
From: news-mail-gateway@ucsd.edu
Subject: Alinco DJ-F1T mod
To: info-hams@ucsd.edu
Modifying Alinco DJ-F1T: Open the unit by removing battery
pack, then the three recessed screws in metal back, and the
recessed screw on side below the Xmit button. With unit face
down, Xmit button to the right, hold the battery release
button so that metal back will come out as you lift the
right edge of the metal back. Open as if it were hinged on
the left. It is NOT hinged here, in fact there are two
delicate ribbon cables you must be careful not to damage.
With the unit open, you will see two wire jumpers, one
red, one blue. Cutting the RED wire enables air band
receive. Cutting the BLUE wire enables extended transmit.
I suggest you don't cut the blue wire unless you have good
reason to.
Put the unit back together, and RESET it by holding in the
function button while you turn it on. This will erase everything
stored in channel memory, but is necessary for the processor
to re-read the jumpers. The extended functions are now available.
The "B" button now toggles AM/FM receive. In AM mode, your
frequency range is extended to include the Air band.
-- Gary KD1TE gthorbur@ub.com -or- compuserve 76500,746.
------------------------------
Date: Fri, 11 Mar 1994 15:14:37 GMT
From: ihnp4.ucsd.edu!sdd.hp.com!apollo.hp.com!hpwin052!hpqmoea!dstock@network.ucsd.edu
Subject: Best cars for mobile HF/VHF??
To: info-hams@ucsd.edu
I'm happy with my choice, a Diesel powered Range-Rover derivative
called a "Discovery"
Give serious thought to Diesels, no ignition, no computers
David GM4ZNX
------------------------------
Date: 11 Mar 1994 09:01:55 -0800
From: ihnp4.ucsd.edu!agate!apple.com!apple.com!not-for-mail@network.ucsd.edu
Subject: copying cw on typewriters
To: info-hams@ucsd.edu
ez006683@chip.ucdavis.edu (Daniel D. Todd) writes:
>Derek Wills (oo7@astro.as.utexas.edu) wrote:
>: Because when you are shipwrecked and have built your CW radio transmitter
>: out of coconuts and paper clips, you won't be able to decode any messages
>: received in response to your distress call. You have to know whether
>: someone is saying "Ship will be there in 2 days", "pse QSY have been on
>: this freq for last 10 hrs", or "599 TX qsl via buro, QRZ?"
>Perhaps we should just lobby the FCC to change the law so that any
>amateurs who pass the code elements with a keyboard be required to be
>able to homebrew a typewriter to get their license.
>ps. If the professor was a Ham "Gilligan's Island" would have lasted only
>three episodes. (unless he was a no-code :-)
But, *our* perfesser *is* a Ham, and professes to know his code, no
less.
However, I think Prof. Dr. Derek is confusing varieties of home-brews.
The young shoots of the coconut palm make mighty fine "home-brew," but
of the spirits kind, that is. Folks in the South Indian and Malayan
Peninsulas call it Toddy.
A few chugs of that home-brew later, the sea gulls on your deserted
island will all appear to be saying "CQ dah-dit-dididit-dah" to you!
Kok "CQD" Chen, AA6TY kchen@apple.com
Apple Computer, Inc.
------------------------------
Date: 11 Mar 1994 17:56:36 GMT
From: meaddata!ruthy@uunet.uu.net
Subject: Dayton parking
To: info-hams@ucsd.edu
In article <2ke42t$144@transfer.stratus.com>, fms@sw.stratus.com (Faith Senie) writes:
|>
|> Last year at Dayton, we were staying at the Radisson (with the rest of the
|> RTTY types!). After an afternoon of wandering around the show, I had myself
|> a craving for a bit of orange juice. I'd have ordered from room service, but
|> I wasn't about to pay that kind of money for simple OJ. I checked at the
|> gas station right there at the Radisson -- no luck. I asked at the front desk
|> if there was some place I could go. They suggested a mall down the street.
|> Having no car, I asked them if the mall was within walking distance. Their answer
|> was to strongly suggest that I NOT walk along the road, no matter how far I
|> was going, because the road was DANGEROUS. Of course, I DID end up walking along
|> the road -- across the street and down to the convenience store a half-block down.
|> No death or dismemberment, but it wasn't a good time, either (no sidewalk except
|> across the I-75 bridge, rushing traffic, etc.)...
|>
|> I'm personally hoping that the Radisson is going to be running shuttles to the
|> show, because I don't relish sitting in the traffic jam (which happened last
|> year, even with loaded busses) for an hour or more in a Standard-Shift vehicle,
|> and it's WAAAAAY too far from the Radisson to walk, even if the road wasn't
|> 'DANGEROUS', as the folks at the Radisson claim.
Of course, Faith, dangerous here in Dayton, Ohio may be a little different than some other folk's view of dangerous. Downtown Dayton is pretty highly patrolled, just don't cross over 75 to the west (that tends to be a high crime area for us). I thought shuttles ran from one of the downtown hotels (Stouffers maybe?). Perhaps another Daytonian subscriber knows more, but I'll try to find out for you.
Until then, I'm looking forward to showing "y'all" some Dayton hospitality!
|>
|> 73 de Faith "It's HOW far???" N1JIT
|> --
|> Faith M. Senie InterNet: fms@vos.stratus.com
|> Stratus Computer, Inc. InterNet: fms@hoop.sw.stratus.com
|> 55 Fairbanks Blvd. Pkt Radio: n1jit@wa1phy.ma.usa.na
|> Marlboro, MA 01752 Phone: (508)460-2632
Ruthann Weaver Todd
ruthy@meaddata.com
Mead Data Central
Miamisburg, Ohio
|>
|> Curiosity doesn't flourish among the burned-out...
------------------------------
Date: 11 Mar 94 17:18:02 GMT
From: news-mail-gateway@ucsd.edu
Subject: Definition of CW speeds
To: info-hams@ucsd.edu
Text item: Text_1
Subject: Definition of CW speeds
>You've make quite a leap in going from PARIS to 50 units! What
>asumptions did you make about dash per dot ratio? And how many
>dots per space? 73, Ned Hamilton, AB6FI.
Hi Ned,
All this is spelled out in detail in the Morse Code section
of the ARRL Handbook. PARIS is exactly 50 units! The assumptions
are also spelled out in detail there. What might help the original
poster is:
ten WPM is 120 mS per unit... 12 WPM is 100 mS per unit... etc.
73, KG7BK, Cecil_A_Moore@ccm.hf.intel.com
(I do not speak for Intel on Internet)
------------------------------
Date: Fri, 11 Mar 1994 16:01:35 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!cs.utexas.edu!convex!news.utdallas.edu!feenix.metronet.com!serafin@network.ucsd.edu
Subject: Good car for HF/VHF mobile??
To: info-hams@ucsd.edu
In article <2lpmsf$8do@brahms.udel.edu>,
Robert Penneys <penneys@brahms.udel.edu> wrote:
>I need to get another car and want one which will be radio-friendly for 100
>watts or so of HF, mostly CW, and 50 or so of 2 meters and 440.
Shees, and people complain about the cellphones stuck to peoples ears
while in traffic. :-)
>
>Criteria are:
>No interference to electronics of car by RF
>Minimal noise generated by car
>Reasonable space for rigs
>Reasonable mounting of antennas
>
>Car will probably be four door sedan in size range from Corolla to Taurus.
How about a Suburban with a Diesel engine? Only interfering electronics
you should have to worry about is the alternator. And it has tons of
space for antennas.
------------------------------
Date: 11 Mar 1994 16:48:54 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!pipex!sunic!trane.uninett.no!nac.no!nntp-oslo.uninett.no!mac_inge!tomrune@network.ucsd.edu
Subject: Need LA5VK's address
To: info-hams@ucsd.edu
Hello!
My father and I are going to Svalbard Isl.
March 18 until March 21.
I want to know if my father is in the newest call-book.
Or if I am there.
The reason why I ask is that LA5VK will be the manager
for the "dx'pedition", and I want to know if he is in the
newest call-book.
By the way, we will be operating all bands, including
WARC, mostly on SSB.
This is probably one of the first times JW is activated
on SSB on the new WARC bands.
The WARC bands was opened for SSB for Norwegian amateurs
January 1 1994.
Please help me, I must have the answer before Friday...
de
We will be using this call signs:
JW1BJA TOM (that's me, homecall LA1BJA)
JW5VK INGE (my father, homecall LA5VK)
vy 73 de Tom, LA1BJA
------------------------------
Date: Fri, 11 Mar 1994 12:22:00 GMT
From: ax!sec21!gerson.rissin@uunet.uu.net
Subject: QSL Route, help.
To: info-hams@ucsd.edu
From: sec21!grissin@ax.apc.org (Gerson Rissin)
Newsgroups: rec.radio.amateur.misc
Subject: QSL ROUTE - HELP
Date: Mon, 11 Mar 1994 13:12:09 GMT
Hi,
I need help with QSL route for the following:
TM0P, FQ2M, GS3IDS, RN7WPX, XR1X, CV5A, 9A7A, LO3A, L3D, V26N, US7I,
L40A, GX0FOS, LY5A, IB4M and CH1YX.
TKS.
73, Gerson Rissin
############################ Super Tag #############################
# #
# [] Gerson Rissin - Rio de Janeiro, RJ. - BRASIL #
#
------------------------------
Date: Fri, 11 Mar 1994 17:39:41 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com!dgf@network.ucsd.edu
Subject: Where can I find "netrom"?
To: info-hams@ucsd.edu
A friend of mine (nq9i) wants to connect his PC though his TNC to a
TCP/IP-based frequency using his PK-232. What software does he need
in his PC? What firmware would he need in his PK-232 (it has firmware
about 4 years old)?
Sorry if this is a FAQ...
Thanx!
73 Dave WB0GAZ dgf@netcom.com
------------------------------
Date: 11 Mar 94 09:43:02 PDT
From: ihnp4.ucsd.edu!library.ucla.edu!csulb.edu!nic-nac.CSU.net!clstcs!armyrman@network.ucsd.edu
Subject: Yaesu 2400H recs
To: info-hams@ucsd.edu
In article <Bg6soUO.wcarty@delphi.com>, wcarty@delphi.com writes:
> best radio i have ever purchased! It goes with me from the house, to the car to
> the house, to the red cross truck to red cross national assignments back to the
> house. It's been dropped once or twice and doesn't seem to mind it.
Totally agree. I to use it in the house and in the field, which includes
disaster communications, (Here in Los Angeles we've had alot of that lately!)
and off road racing. It's had a lot of dust and vibration with out a single
problem.
What I need is a quick release kind of mobile bracket similar to the MMB-37
bracket sold for the FT-5100. That would make moving it from house to car to
truck to box etc etc much nicer. Anybody got somethin' like that?
> It is also if memory serves me right, the only ham rig that is built to
> millitary specs.
Only MIL-STD 810C mechcanical spec which is for shock and vibration using
methods 514.2/VII and 516.2/I. Supposedly the sister radio FT-7400H is the
440 MHz version of the same.
I would a very exspensive radio to be completely built to MIL-STD
But it's the only one I know of that is built to those standards.
Trying to decide between a FT-7400H or a FT-5100.
---
Alex R. Myrman - KC6TMB - LA Co DCS W-03 - armyrman@vms4.sci.csupomona.edu
College of Science Computational Systems - (909) 869-4226
California State Polytechnic University, Pomona, CA. USA
------------------------------
Date: Fri, 11 Mar 1994 13:21:52 GMT
From: world!drt@uunet.uu.net
To: info-hams@ucsd.edu
References <CMD7Gw.2wo@usenet.ucs.indiana.edu>, <CMDD89.1pH@world.std.com>, <CMEG3M.GJ9@murdoch.acc.Virginia.EDU>
Subject : Re: Definition of CW speeds
Carole L. Hamilton (clh6w@faraday.clas.Virginia.EDU) wrote:
: In article <CMDD89.1pH@world.std.com>,
: David R Tucker <drt@world.std.com> wrote:
: >Laurence Gene Battin (battin@cyclops.iucf.indiana.edu) wrote:
: >: I am writing a code-practice program for my Amiga computer, and
: >: I wonder if anyone can give me a definitive answer to exactly
: >: how many milliseconds long a dit at 18 wpm is supposed to be?
: >
: Then David R. Tucker wrote:
: >You're right. There is a more exact standard.
: >
: >The average English text word length is 50 units, which is the same as
: >the work "PARIS", and that's considered the "standard" word length.
: ...
: You've make quite a leap in going from PARIS to 50 units! What
: asumptions did you make about dash per dot ratio? And how many
: dots per space?
Well, I assumed he understood this from another source, since he
didn't ask that question, and could look it up in the source I gave.
Still:
dit = 1 unit
dah = 3
intracharacter space = 1 unit
space between characters = 3 units
space between words = 7 units
(BTW, a fast way to figure out the number of units in a text is to
count all the dits, dahs, characters, and words. Then
Length = 2*(dits+chars) + 4*(dahs+words)
The proof of this is left as an exercise, but it works.
PARIS : 10 dits, 5 letters, 4 dahs, 1 word = 50 units. Or, you can
count all the units up.)
: Also some code is sent Farnsworth (sp?) where the characters are
: sent at one (faster) speed while the spaces between words are spread
: out.
Between characters and between words. I assume you keep the
word space:character space ratio at 7:3, extending the duration of
word spaces and character spaces so that when you combine everything,
PARIS comes out at the speed you desire, despite faster characters.
This, the formula I gave before, and a bit of algebra should give a
formula for char and word spaces for any overall speed and character
speed specified. Then it's plug & chug.
: Your final conclusions are approximately correct but you need
: to account for the above spacings.
"Approximately"??? 66.6666666666666... ms for a dit length at 18 wpm
is approximate?? Boy, you're a tough one! :-> (Maybe, "correct as
far as it goes"?)
: By the way to the original poster: the best to write a program that
: sends code is to start with the dot length. Then make all the
: other ratios a function of that dot length. (e.g. dash-dot ratio,
: space length in units of dots, and character speed versus word
: speed). Then adjust the ratios until you get a pleasant sounding
: "fist."
: 73, Ned Hamilton, AB6FI.
You could also allow the user to vary those ratios to taste, as an
option.
Sorry if it wasn't clear. Happy ... coding!!! :-) (groan ...)
-drt
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|David R. Tucker KG2S drt@world.std.com|
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End of Info-Hams Digest V94 #277
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