I think you'll find the so239/pl259 combination as well as the bnc were
first standardized by the military and then the commercial industry
picked them up.
Unless you can find a bus standard that has been adopted by the
military first you probably aren't going to find wide acceptance.
tim ab0wr
On Thu, 21 Jun 2018 12:22:54 -0400
"Ralph Mowery" <rmowery42@...> wrote:
I have been a ham for over 40 years and in all that time there is not
even a 'standard' for the microphone jack. Even if the plugs are the
same type , the wiring is often different. Even the 12 V dc
connections are often different. Seems that the pl259 and bnc are
about all that has been mostly constant.
ku4pt
On Thu, Jun 21, 2018 at 12:14 PM, Arv Evans <arvid.evans@...>
wrote:
Jack
After attempting to discuss this with a local ham, it became
obvious that the idea
of a "Standard Ham Radio Bus" is many things to many people, and
maybe not a
manageable concept. It sort of fits with the old saying that "one
should pick battles
that can be won". Probably not even a committee could decide
whether this bus
includes I2C/TWI, RF-signal, RF-power, virtual links, radio links,
24V/12V/5V/3.3V,
keying, PTT, Linear control, regulated voltages, unregulated
voltages, USB, Ethernet,
POE, CAT, terminations, etc. And some have already suggested that
it might be
focused particularly on support of modular BITX specific design
blocks. Maybe the
concept is best kept within the group members who are doing modular
builds of BITX
and BITX related designs?
Arv
_._
On Wed, Jun 20, 2018 at 8:50 PM Jack Purdum via Groups.Io
<jjpurdum= [email protected]> wrote:
Arv:
All tough questions, but worth answering. Think of the
possibilities. Personally, I think this should be of the
free-to-use license, mainly because I don't want to see extensions
to the bus that aren't under someone's control. Otherwise, the
standard slowly dissolves into chaos.
Every time an organization question comes up, I think of a sign I
had on my desk when I was the department chairman:
* For God so loved the world, he didn't send a committee.*
Still, there has to be a *small *knot of knowledgeable people who
know the EE and software side of this. It needs to be small
because it needs to be nimble, yet with enough technical depth to
make things work. I've seen the agony of trying to define a
standard (i.e., the X3J11 committee to write the first standard
for the C language)...it is a formidable task, and the difficult
increases with the size of the committee. There are all kinds of
technical details to think about and the Atlas bus would at least
be a thoughtful starting point.
I think this could be a rewarding endeavor.
Jack, W8TEE
On Wednesday, June 20, 2018, 8:36:53 PM EDT, Arv Evans <
arvid.evans@...> wrote:
If hams were to design and standardize a ham-bus-system approach to
modular equipment,
should the design be placed in public domain, or under one of the
free-to-use licenses?
Should a group be formed specifically for the purpose of bus
design, documentation, and
publication?
How would upgrades, modifications, and alternative bus designs be
handled?
Seems there are lots of questions, lots of possible opinions, and
lots of work to do.
Arv
