Re: [amsat-bb] Sunsat switches to Mode J

[Glenn Little <glittle@xxxxxxxx>]

Some answers below:

alf sauve wrote:
> 
> Johann,
> 
> First, thanks so very much for the update and especially for providing
> SunSat.  It is a great ham radio resource and I do appreciate the time,
> effort and monies that went (and are still going) into building, launching
> and maintaining that satellite.
> 
> Now like many ignorant Americans, I'm not fully cognizant of the various
> conventions used in other countries.   I know a lot of countries use a
> common (,) for their decimal point and there are other differences in the
> way we represent things.  (Not to mention the whole metric mess.)
> 
> However, I'm curious about the 'nkn' (e.g. 9k6 baud) convention ESL uses on
> the SunSat page.   Wouldn't that convention indicate 9006 instead of 9600?
> I would think and maybe I'm just aneed'n'  educatin' in the ways of the rest
> of the world, but wouldn't 9.6k be more accurate?  I notice that you don't
> use that convention on the frequency,  145.825Mhz  instead of 145M825Hz?

nkn is used a lot in Europe and I wish that it would catch on here. 
Have you ever had to guess as to the notation of a copied schematic? 
Was that a decimal point or was it a spot from the copier?  The k in the
example takes the place of the decimal point and indicates the
multiplier of 10e3 (K).  This letter can be an R as in 1R0 to indicate
1.0, a K as in the example, an M to indicate a multiplier of 10e6.  I am
sure that there are others, but these are what I have seen used. 
Actually 1K6 takes up less room than 1.6K and takes all the fun out of
guessing, was that 1.6K or 16K for the value.

> 
> Maybe I'm just in a picky mode this morning, but am willing to learn new
> things.
> 
> Again, thanks for the satellite and the frequent updates and changes in
> mode.  It has been fun tracking, though the recent shift in modes has taken
> me a day or two to adjust to.  (I'm old and slow to change sometimes.)
> 
> Alf -W4ADS
> 
> ----- Original Message -----
> From: "Johann Lochner" <lochner@ing.sun.ac.za>
> To: <amsat-bb@AMSAT.Org>
> Sent: Wednesday, July 12, 2000 7:24 PM
> Subject: [amsat-bb] Sunsat switches to Mode J
> 
> > Hi folks,
> >
> > Sunsat will operate in Mode J during the coming weeks (with weekdays
> > included).  A schedule for all voice passes to the end of July was
> > uploaded to the Sunsat web page <http://sunsat.ee.sun.ac.za> today.
> > The uplink is 145.825 MHz, downlink 436.250 MHz.
> >
> > The voice schedule for this weekend is attached below.  Except for
> > when a voice pass is in progress, Sunsat will digipeat unconnected
> > 1k2 AFSK (uplink 145.900 MHz) and 9k6 PAM/FSK (uplink 145.825 MHz)
> > data to 9k6 PAM/AFSK (downlink 436.250 MHz).  Use 'SUNSAT' in your
> > unproto path.
> >
> > Kind regards,
> > Johann, ZR1CBC
> >
> >
> > Japan
> >
> > 15/07/2000  08:49
> > 16/07/2000  09:48
> >
> > Australasia
> >
> > 15/07/2000  09:05
> > 16/07/2000  08:25
> >
> > South-Eastern Asia
> >
> > 15/07/2000  12:16
> > 16/07/2000  13:15
> >
> > Southern Africa
> >
> > 15/07/2000  15:47
> > 16/07/2000  16:45
> >
> > Europe
> >
> > 15/07/2000  18:45
> > 16/07/2000  18:05
> >
> > South America
> >
> > 15/07/2000  22:22
> > 16/07/2000  21:42
> >
> > North America
> >
> > 16/07/2000  01:27
> > 17/07/2000  00:47
> >
> >
> > +------------------------------------------------+
> >    JG Lochner  ESL, Universiteit van Stellenbosch
> >    e-pos:      lochner@ing.sun.ac.za
> >    webtuiste:  http://esl.ee.sun.ac.za/~lochner
> > +------------------------------------------------+
> >
> > ----
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> 
> ----
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-- 
Glenn Little
Engineer
HARK Systems, Inc.
Voice (843) 764-1560
Fax   (843) 764-3692
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