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CX2SA > SATDIG 05.07.16 23:11l 832 Lines 29618 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Band designators, Modes (Peter Laws)
2. Any egg beater, K5OE sq egg beater or Texas Potato Masher
antennas for sale? (Tom J. Gentry)
3. Re: Band designators, Modes (skristof@xxxxxxx.xxxx
4. Re: Band designators, Modes (Arthur Feller)
5. Re: Garrison Keillor's callsign? (Rich/wa4bue)
6. Re: Band designators, Modes (RSoifer1@xxx.xxxx
7. Re: Mode K (fact and fiction?) (Kevin Muenzler, WB5RUE)
8. Re: Band designators, Modes (Edson W. R. Pereira)
9. Lunar Module Source Code (Bryan KL7CN)
10. Re: Band designators, Modes (Graham Shirville)
11. Re: Lunar Module Source Code (B J)
12. Re: Band designators, Modes (Arthur Feller)
----------------------------------------------------------------------
Message: 1
Date: Mon, 4 Jul 2016 14:59:27 -0500
From: Peter Laws <plaws0@xxxxx.xxx>
To: AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Band designators, Modes
Message-ID:
<CANVAiQ-5g3Dz86LPJ8afoK+WS8tA15P-9bSus-E0XTS6AwXc3A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I thought AMSAT was moving away from Modes A, B, J, etc, but they seem
too entrenched and still appear in current pubs. Regardless, the band
designations, loosely based on microwave band designators (later
"codified" by IEEE), were for whatever reason interesting to me so I
made a chart. It started out as just the microwaves ... then I added
the satellite stuff ... then I added the stuff that is microwave, but
non-amateur/non-satellite but in the same neighborhood.
It's mostly microwave-centric but I put all the FCC bands designated
for space station use in there, too, and as some of you know, that
goes down as low as 40 m (which is *not* microwave :-) ).
Anyway, the only "name space collision" between AMSAT designators and
IEEE designators is the AMSAT R band (47000 - 47200 MHz), which is
part of the IEEE V band (40000 - 75000 MHz). That happens because
AMSAT's V band is 144 - 146 MHz.
The only other anomaly is that we amateurs have two allocations within
the what the IEEE calls the S-band (2000 - 4000 MHz), which are 2400 -
2450 MHz (13 cm) and 3400 - 3410 MHz (9 cm) -- both ham bands are
wider but these are the FCC space station allocations. I've seen the
amateur allocation at 9 cm referred to as "S2" but I don't know how
official that is.
https://docs.google.com/spreadsheets/d/1oJV0Bv24mHhq_eICUp3L6g4pTy-wItUWfkyT-U
f5z0g/edit?usp=sharing
Anyway, I keep stumbling on allocations that seem relevant so I keep
adding them. I need to add the historical notes, too, like where the
K and X letters came from as well as the
"hopefully-but-not-quite-yet-obsolete" satellite mode designators.
Some of that info is linked to the page.
Looking forward to the Mode CX satellites ...
--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!
------------------------------
Message: 2
Date: Mon, 4 Jul 2016 16:10:46 -0500
From: "Tom J. Gentry" <t.gentry@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Any egg beater, K5OE sq egg beater or Texas Potato
Masher antennas for sale?
Message-ID: <9331BA32-3383-46CC-88AB-000D0C04EA21@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Any egg beater, K5OE sq egg beater or Texas Potato Masher antennas for sale?
Please notify K5VOU@xxxx.xxx.
73,
Tom
------------------------------
Message: 3
Date: Mon, 04 Jul 2016 17:11:49 -0400
From: skristof@xxxxxxx.xxx
To: Peter Laws <plaws0@xxxxx.xxx>, AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: Re: [amsat-bb] Band designators, Modes
Message-ID: <77f3badfd41003ed62cfad666d2256e9@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII
Nice spreadsheet and I'd like to save a copy.
Confession of ignorance: How do I save it as an Excel spreadsheet (or
convert it and then save it, or ???)
Steve AI9IN
On 2016-07-04 15:59, Peter Laws wrote:
> I thought AMSAT was moving away from Modes A, B, J, etc, but they seem
> too entrenched and still appear in current pubs. Regardless, the band
> designations, loosely based on microwave band designators (later
> "codified" by IEEE), were for whatever reason interesting to me so I
> made a chart. It started out as just the microwaves ... then I added
> the satellite stuff ... then I added the stuff that is microwave, but
> non-amateur/non-satellite but in the same neighborhood.
>
> It's mostly microwave-centric but I put all the FCC bands designated
> for space station use in there, too, and as some of you know, that
> goes down as low as 40 m (which is *not* microwave :-) ).
>
> Anyway, the only "name space collision" between AMSAT designators and
> IEEE designators is the AMSAT R band (47000 - 47200 MHz), which is
> part of the IEEE V band (40000 - 75000 MHz). That happens because
> AMSAT's V band is 144 - 146 MHz.
>
> The only other anomaly is that we amateurs have two allocations within
> the what the IEEE calls the S-band (2000 - 4000 MHz), which are 2400 -
> 2450 MHz (13 cm) and 3400 - 3410 MHz (9 cm) -- both ham bands are
> wider but these are the FCC space station allocations. I've seen the
> amateur allocation at 9 cm referred to as "S2" but I don't know how
> official that is.
>
>
https://docs.google.com/spreadsheets/d/1oJV0Bv24mHhq_eICUp3L6g4pTy-wItUWfkyT-U
f5z0g/edit?usp=sharing
>
> Anyway, I keep stumbling on allocations that seem relevant so I keep
> adding them. I need to add the historical notes, too, like where the
> K and X letters came from as well as the
> "hopefully-but-not-quite-yet-obsolete" satellite mode designators.
> Some of that info is linked to the page.
>
> Looking forward to the Mode CX satellites ...
------------------------------
Message: 4
Date: Mon, 4 Jul 2016 18:18:53 -0400
From: Arthur Feller <afeller@xxxx.xxx>
To: Peter Laws <plaws0@xxxxx.xxx>
Cc: AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: Re: [amsat-bb] Band designators, Modes
Message-ID: <52669B2F-E255-47D6-8D32-F48FA3D2C6EA@xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Interesting chart, Peter.
ITU and FCC, at one time, decided never to use these LETTER destination in
favor of frequencies by the numbers. The numbers need no interpretation or
qualification. AMSAT should go the simple route! Stick to the numbers,
which EVERYONE understands.
73, art?..
W4ART Arlington VA
> On 4-Jul-2016, at 03:59 PM, Peter Laws <plaws0@xxxxx.xxx> wrote:
>
> I thought AMSAT was moving away from Modes A, B, J, etc, but they seem
> too entrenched and still appear in current pubs. Regardless, the band
> designations, loosely based on microwave band designators (later
> "codified" by IEEE), were for whatever reason interesting to me so I
> made a chart. It started out as just the microwaves ... then I added
> the satellite stuff ... then I added the stuff that is microwave, but
> non-amateur/non-satellite but in the same neighborhood.
>
> It's mostly microwave-centric but I put all the FCC bands designated
> for space station use in there, too, and as some of you know, that
> goes down as low as 40 m (which is *not* microwave :-) ).
>
> Anyway, the only "name space collision" between AMSAT designators and
> IEEE designators is the AMSAT R band (47000 - 47200 MHz), which is
> part of the IEEE V band (40000 - 75000 MHz). That happens because
> AMSAT's V band is 144 - 146 MHz.
>
> The only other anomaly is that we amateurs have two allocations within
> the what the IEEE calls the S-band (2000 - 4000 MHz), which are 2400 -
> 2450 MHz (13 cm) and 3400 - 3410 MHz (9 cm) -- both ham bands are
> wider but these are the FCC space station allocations. I've seen the
> amateur allocation at 9 cm referred to as "S2" but I don't know how
> official that is.
>
>
>
https://docs.google.com/spreadsheets/d/1oJV0Bv24mHhq_eICUp3L6g4pTy-wItUWfkyT-U
f5z0g/edit?usp=sharing
>
>
> Anyway, I keep stumbling on allocations that seem relevant so I keep
> adding them. I need to add the historical notes, too, like where the
> K and X letters came from as well as the
> "hopefully-but-not-quite-yet-obsolete" satellite mode designators.
> Some of that info is linked to the page.
>
> Looking forward to the Mode CX satellites ...
>
>
> --
> Peter Laws | N5UWY | plaws plaws net | Travel by Train!
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Everyone, in some small sacred sanctuary of the self, is nuts.
-Leo Rosten, author (1908-1997)
http://afeller.us <http://afeller.us/>
------------------------------
Message: 5
Date: Mon, 04 Jul 2016 20:17:40 -0400
From: "Rich/wa4bue" <richard.siff@xxxxxxx.xxx>
To: "Peter Laws" <plaws0@xxxxx.xxx>, "Robert Bruninga"
<bruninga@xxxx.xxx>
Cc: amsat bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Garrison Keillor's callsign?
Message-ID: <250D4C6BB8884BB7AEFC2ED503F996C3@xxxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Maybe he was in the armed services. It could be in his BIO.
Rich
W4BUE
-----Original Message-----
From: Peter Laws
Sent: Monday, July 04, 2016 3:20 PM
To: Robert Bruninga
Cc: amsat bb
Subject: Re: [amsat-bb] Garrison Keillor's callsign?
On Mon, Jul 4, 2016 at 2:15 PM, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>
>
> So, who has a paper callbook say from 1956 to 66 and can look him up?
>
archive.org just put up a bunch of old callbooks, but I don't know if
they have any from that late - many were very early.
Is that his real name? (If not, why would he choose that one! :-)
--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Tue, 5 Jul 2016 12:30:15 -0400
From: RSoifer1@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Band designators, Modes
Message-ID: <6e39be.106b7921.44ad3a97@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
We have been using the term "Mode K" to describe 21 MHz uplink/29 MHz
downlink because that is what AMSAT called it when it first came into use in
1987. Similarly, the terms "Mode A" and "Mode B" came into use in 1974
because that is what the engineers who designed AMSAT-OSCAR 7 called them.
AO-7
actually has four modes: Mode C is a low-power version of Mode B, and Mode
D is "transponder off." Then came Fuji-OSCAR 12 with Modes JA (analogue)
and JD (digital), where "J" stood for "Japan." FCC even included the
definitions of Modes A and B in the written tests of that era.
This "ancient history" has probably served its purpose. Art is right:
we'd do better to stick with the numbers.
73 Ray W2RS
------------------------------
Message: 7
Date: Tue, 5 Jul 2016 12:49:57 -0500
From: "Kevin Muenzler, WB5RUE" <kevin@xxxxxxxxxxxxxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode K (fact and fiction?)
Message-ID: <000001d1d6e5$a5b459d0$f11d0d70$@xxx>
Content-Type: text/plain; charset="us-ascii"
MOST companies will just let you use their stuff (with permission and
reference) but some will require some "fee." If it's a ham asking a ham I
don't see how there could be a problem especially if you aren't going to
make money from it.
If you've been a ham long enough you've probably either had your own cards
printed by or received cards printed by "The Little Print Shop" in
Pflugerville, TX. They went out of business and were bought out by another
company about 15 years ago, I think the founder passed away and the
children/grand children didn't want to continue the QSL business but they
"expanded" into other venues. My current QSL is based on one of their old
designs. I called and got permission to use it and the grandson of the
founder (owner of the current company) was more than happy to give
permission.
In some cases it's easier to ask for forgiveness than to ask for permission
but when it comes to copyrights that's usually not the case, it can cost you
dearly.
Kevin Muenzler, WB5RUE
EL09uf
Eagle Creek Observatory
http://www.eaglecreekobservatory.org
I am Voltohm of Borg! Resistance is E/I, you will be attenuated!
-----Original Message-----
From: Dave Mann [mailto:cwo4mann@xxxxxxx.xxxx
Sent: Saturday, July 02, 2016 10:55 AM
To: Kevin Muenzler, WB5RUE
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Mode K (fact and fiction?)
I forgot about that Copyright thing. I've sent s message to RSGB Hq
requesting permission. I also offered to convert it to Kindle or other eBook
formats should they refuse copy permission. I'll let the group know when I
find out.
Dave
N4CVX
Sent from my iPhone
> On Jul 2, 2016, at 10:31, Kevin Muenzler, WB5RUE
<kevin@xxxxxxxxxxxxxxxxxxxxx.xxx> wrote:
>
> I was bitten by that once. Fortunately all I had to do was apologize
> and ask for permission (get it in writing, email ok) and then site the
> source on the web page. This was unintentional on my part but I'm
> sure the author could have really pushed the issue but he was very
> nice about it and only asked that I site him as the author.
>
>
> Kevin Muenzler, WB5RUE
> EL09uf
> Eagle Creek Observatory
> http://www.eaglecreekobservatory.org
> I'm not very good with advice, can I interest you in a sarcastic comment?
>
>
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of E.Mike
> McCardel
> Sent: Saturday, July 02, 2016 9:28 AM
> To: Dave Mann
> Cc: rsoifer1@xxx.xxxx amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] Mode K (fact and fiction?)
>
> Please consider copyright laws before you copy and place this online.
> Convenient yes, but not necessarily legal.
>
> EMike
>
> EMike McCardel, AA8EM
> Rotating Editor AMSAT News Service
> Sent from my iPhone
>
>> On Jul 1, 2016, at 2:39 PM, Dave Mann <cwo4mann@xxxxxxx.xxx> wrote:
>>
>> I just now ordered it and when it arrives will scan it and post to
>> our files as a searchable pdf. I have a commercial book scanner and
>> Linux .... Easy peasy
>>
>> Dave
>> N4CVX
>>
>> Sent from my iPad
>>
>>> On Jul 1, 2016, at 11:02, Bob Cutter <ki0gqrp@xxxxx.xxx> wrote:
>>>
>>> Amazon has it used.
>>>
>>> Bob
>>>
>>>> On Jul 1, 2016, at 9:29 AM, rsoifer1--- via AMSAT-BB
> <amsat-bb@xxxxx.xxx> wrote:
>>>>
>>>>
>>>> It's 242 pages, and I don't have a scanner.
>>>>
>>>> Sorry.
>>>>
>>>> 73 Ray
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: skristof <skristof@xxxxxxx.xxx>
>>>> To: RSoifer1 <RSoifer1@xxx.xxx>
>>>> Cc: amsat-bb <amsat-bb@xxxxx.xxx>
>>>> Sent: Fri, Jul 1, 2016 8:09 am
>>>> Subject: Re: [amsat-bb] Mode K (fact and fiction?)
>>>>
>>>>
>>>>
>>>> I'm guessing it's many pages, but is there any way to make a copy
> available online (pdf or ???)?
>>>> Then you wouldn't have to worry about shipping it and it would be
> readily available to anyone who wants to read it.
>>>> Steve AI9IN
>>>>
>>>>
>>>> On 2016-07-01 10:30, RSoifer1--- via AMSAT-BB wrote:
>>>>
>>>> Bob,
>>>>
>>>> John wrote up many of his findings in his Space Radio Handbook,
>>>> published by RSGB in 1991. If you can't locate a copy, let me
>>>> know and I can send you mine.
>>>>
>>>> 73 Ray
>>>> _______________________________________________
>>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum
>>>> available to all interested persons worldwide without requiring
>>>> membership. Opinions expressed are solely those of the author, and
>>>> do
> not reflect the official views of AMSAT-NA.
>>>> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
>>>> Subscription settings:
>>>> http://www.amsat.org/mailman/listinfo/amsat-bb
>>>>
>>>>
>>>> _______________________________________________
>>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum
>>>> available to all interested persons worldwide without requiring
>>>> membership. Opinions expressed are solely those of the author, and
>>>> do
> not reflect the official views of AMSAT-NA.
>>>> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
>>>> Subscription settings:
>>>> http://www.amsat.org/mailman/listinfo/amsat-bb
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum
>>> available to all interested persons worldwide without requiring
membership.
>>> Opinions expressed are solely those of the author, and do not
>>> reflect the
> official views of AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
>>> Subscription settings:
>>> http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed are solely those of the author, and do not reflect
>> the
> official views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed are solely those of the author, and do not reflect
> the official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed are solely those of the author, and do not reflect the
official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 8
Date: Tue, 5 Jul 2016 15:24:34 -0300
From: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Band designators, Modes
Message-ID:
<CALNQy49+2iMim-9CAn8rLwWZV7nBALBJ6fsU5CNZv+L5tRFm=w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I agree with Art and Ray. We should just use the frequency or frequency
range when referring to a radio band. I have found myself at times having
to check which of the several standards (isn't it nice to have so many?) an
author used when referring to radio bands. It is much easier and clearer to
just refer a band by the frequency.
73, Edson PY2SDR
---
- We humans have the capability to do amazing things if we work together.
- N?s seres humanos temos a capacidade de fazer coisas incr?veis se
trabalharmos juntos.
On Tue, Jul 5, 2016 at 1:30 PM, RSoifer1--- via AMSAT-BB <amsat-bb@xxxxx.xxx
> wrote:
> We have been using the term "Mode K" to describe 21 MHz uplink/29 MHz
> downlink because that is what AMSAT called it when it first came into use
> in
> 1987. Similarly, the terms "Mode A" and "Mode B" came into use in 1974
> because that is what the engineers who designed AMSAT-OSCAR 7 called
> them. AO-7
> actually has four modes: Mode C is a low-power version of Mode B, and Mode
> D is "transponder off." Then came Fuji-OSCAR 12 with Modes JA (analogue)
> and JD (digital), where "J" stood for "Japan." FCC even included the
> definitions of Modes A and B in the written tests of that era.
>
> This "ancient history" has probably served its purpose. Art is right:
> we'd do better to stick with the numbers.
>
> 73 Ray W2RS
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 9
Date: Tue, 5 Jul 2016 12:15:35 -0700
From: Bryan KL7CN <bryan@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Lunar Module Source Code
Message-ID: <419786B5-F1AA-456F-BE0B-83DE51055A32@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Thought our community would enjoy this article about the Lunar Module source
code:
DON EYLES WALKS US THROUGH THE LUNAR MODULE SOURCE CODE
http://hackaday.com/2016/07/05/don-eyles-walks-us-through-the-lunar-module-sou
rce-code/
Interesting video here:
https://youtu.be/H0ITFbDuJz0
Source Code here:
https://github.com/chrislgarry/Apollo-11
73!
-- bag
Bryan KL7CN/W6
------------------------------
Message: 10
Date: Tue, 5 Jul 2016 21:19:28 +0100
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
To: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Band designators, Modes
Message-ID: <043F8C4790854252B4B870F137A0CBFE@xxxxxxx.xxxxx>
Content-Type: text/plain; format=flowed; charset="utf-8";
reply-type=original
Agreed but we will have to change the behaviour of the professionals who
still use the terminology in general.
That action may take a generation or two I guess!
73
Graham
-----Original Message-----
From: Edson W. R. Pereira
Sent: Tuesday, July 05, 2016 7:24 PM
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Band designators, Modes
I agree with Art and Ray. We should just use the frequency or frequency
range when referring to a radio band. I have found myself at times having
to check which of the several standards (isn't it nice to have so many?) an
author used when referring to radio bands. It is much easier and clearer to
just refer a band by the frequency.
73, Edson PY2SDR
---
- We humans have the capability to do amazing things if we work together.
- N?s seres humanos temos a capacidade de fazer coisas incr?veis se
trabalharmos juntos.
On Tue, Jul 5, 2016 at 1:30 PM, RSoifer1--- via AMSAT-BB <amsat-bb@xxxxx.xxx
> wrote:
> We have been using the term "Mode K" to describe 21 MHz uplink/29 MHz
> downlink because that is what AMSAT called it when it first came into use
> in
> 1987. Similarly, the terms "Mode A" and "Mode B" came into use in 1974
> because that is what the engineers who designed AMSAT-OSCAR 7 called
> them. AO-7
> actually has four modes: Mode C is a low-power version of Mode B, and Mode
> D is "transponder off." Then came Fuji-OSCAR 12 with Modes JA (analogue)
> and JD (digital), where "J" stood for "Japan." FCC even included the
> definitions of Modes A and B in the written tests of that era.
>
> This "ancient history" has probably served its purpose. Art is right:
> we'd do better to stick with the numbers.
>
> 73 Ray W2RS
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 11
Date: Tue, 5 Jul 2016 20:29:51 +0000
From: B J <va6bmj@xxxxx.xxx>
To: Bryan KL7CN <bryan@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Lunar Module Source Code
Message-ID:
<CAP7QzkPCdsmehTcq0Y4r0T3uYP_VmKTU4K8bXK_r8h8wCn_6fw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
On 7/5/16, Bryan KL7CN <bryan@xxxxx.xxx> wrote:
> Thought our community would enjoy this article about the Lunar Module source
> code:
>
> DON EYLES WALKS US THROUGH THE LUNAR MODULE SOURCE CODE
>
http://hackaday.com/2016/07/05/don-eyles-walks-us-through-the-lunar-module-sou
rce-code/
>
> Interesting video here:
> https://youtu.be/H0ITFbDuJz0
>
> Source Code here:
> https://github.com/chrislgarry/Apollo-11
Aha! Another reader of Hackaday!
By the way, it's a great site for tinkerers and it has a number of
pages devoted to amateur radio topics. I found out about it through
listening to the "Solder Smoke" podcasts.
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 12
Date: Tue, 5 Jul 2016 17:07:34 -0400
From: Arthur Feller <afeller@xxxx.xxx>
To: Graham Shirville <g.shirville@xxxxxxxxxx.xxx>, AMSAT-BB
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Band designators, Modes
Message-ID: <1412F03C-6543-40A7-B73D-F3192199F1FF@xxxx.xxx>
Content-Type: text/plain; charset=utf-8
We?ll just have to set a better example. Probably will take a generation to
shed old habits. :-)
73?..
> On 5-Jul-2016, at 04:19 PM, Graham Shirville <g.shirville@xxxxxxxxxx.xxx>
wrote:
>
> Agreed but we will have to change the behaviour of the professionals who
still use the terminology in general.
>
> That action may take a generation or two I guess!
>
> 73
>
> Graham
>
> -----Original Message----- From: Edson W. R. Pereira
> Sent: Tuesday, July 05, 2016 7:24 PM
> To: amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] Band designators, Modes
>
> I agree with Art and Ray. We should just use the frequency or frequency
> range when referring to a radio band. I have found myself at times having
> to check which of the several standards (isn't it nice to have so many?) an
> author used when referring to radio bands. It is much easier and clearer to
> just refer a band by the frequency.
>
> 73, Edson PY2SDR
>
> ---
> - We humans have the capability to do amazing things if we work together.
> - N?s seres humanos temos a capacidade de fazer coisas incr?veis se
> trabalharmos juntos.
>
> On Tue, Jul 5, 2016 at 1:30 PM, RSoifer1--- via AMSAT-BB <amsat-bb@xxxxx.xxx
>> wrote:
>
>> We have been using the term "Mode K" to describe 21 MHz uplink/29 MHz
>> downlink because that is what AMSAT called it when it first came into use
>> in
>> 1987. Similarly, the terms "Mode A" and "Mode B" came into use in 1974
>> because that is what the engineers who designed AMSAT-OSCAR 7 called
>> them. AO-7
>> actually has four modes: Mode C is a low-power version of Mode B, and Mode
>> D is "transponder off." Then came Fuji-OSCAR 12 with Modes JA (analogue)
>> and JD (digital), where "J" stood for "Japan." FCC even included the
>> definitions of Modes A and B in the written tests of that era.
>>
>> This "ancient history" has probably served its purpose. Art is right:
>> we'd do better to stick with the numbers.
>>
>> 73 Ray W2RS
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Everyone, in some small sacred sanctuary of the self, is nuts.
-Leo Rosten, author (1908-1997)
http://afeller.us <http://afeller.us/>
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 11, Issue 222
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