Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #21   Report Post  
Old April 17th 07, 01:08 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 38
Default Putting the Ham back into Ham Radio?

What I had in mind was a slightly higher level
system view.

So starting at the easy end, we might specify that
the AF amp takes 100mW into 600 Ohms, and
delivers 1W out into 8 Ohms. a biscuit to do that
might take many forms but would all be interchangeable.

If an audio filter were to be included, that would
work in and out at 100mV into 600 Ohms with
0dB gain - and would thus be an optional fit
prior to the AF amp.

I'm not thinking in terms of mother and daughter boards,
but of a set of standard biscuit designs that could then
be assembled into whatever, test eqpt or rig.

Although we'd be using small miniature components (is
anything else readily available these days?) that miniaturisation
does not have to feature in our biscuits necessarily, so
we might have SMDs but spaced out by half-an-inch, or so,
to enable us to work with them.

Setting aside the infantile remarks and attention-seeking
from "the usual suspects", I'm proposing that this be a joint
effort.

"Straydog" wrote in message
x.com...

Might we all act together to produce a series
of "biscuits" that could then be assembled
Lego-like fashion to produce any rig or test
equipment?


FWIW (pardon me) but I recognize what you are talking about as "descrete
devices" (i.e. tubes, transistors, resistors, capacitors, etc.).



  #22   Report Post  
Old April 17th 07, 01:15 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 38
Default Putting the Ham back into Ham Radio?

Each biscuit would be a standard size or a multiple
thereof, I'd tentatively suggest 1 1/2" X 2".

Assembly of a transceiver would then consist of
biscuits mounted horizontally. The idea is that we
put HB firmly back on the map as the standard
route into HamRadio, so I'm not after miniaturisation.

Perhaps if we could produce rigs of the size of floor
plan size of the old FT101 we'd be OK for easily
doing our own maintenance....we need to ensure room to
get a soldering iron and a probe in there without fear
of affecting other parts.

For all their simplicity, this spaciousness and room-to-breathe
was something desirable that was lost with the demise
of valve ("tube" to the Yanks) rigs.

wrote in message ...
What I had in mind was a slightly higher level
system view.

So starting at the easy end, we might specify that
the AF amp takes 100mW into 600 Ohms, and
delivers 1W out into 8 Ohms. a biscuit to do that
might take many forms but would all be interchangeable.

If an audio filter were to be included, that would
work in and out at 100mV into 600 Ohms with
0dB gain - and would thus be an optional fit
prior to the AF amp.



  #23   Report Post  
Old April 17th 07, 01:28 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 250
Default Putting the Ham back into Ham Radio?

What I had in mind was a slightly higher level
system view.

So starting at the easy end, we might specify that
the AF amp takes 100mW into 600 Ohms, and
delivers 1W out into 8 Ohms. a biscuit to do that
might take many forms but would all be interchangeable.

If an audio filter were to be included, that would
work in and out at 100mV into 600 Ohms with
0dB gain - and would thus be an optional fit
prior to the AF amp.

I'm not thinking in terms of mother and daughter boards,
but of a set of standard biscuit designs that could then
be assembled into whatever, test eqpt or rig.

Although we'd be using small miniature components (is
anything else readily available these days?) that miniaturisation
does not have to feature in our biscuits necessarily, so
we might have SMDs but spaced out by half-an-inch, or so,
to enable us to work with them.

Setting aside the infantile remarks and attention-seeking
from "the usual suspects", I'm proposing that this be a joint
effort.

=================================
Just for information :
A modular approach to homebrewing (call it biscuit building) is also
very well propagated in the book : Experimental Methods in RF Design ,by
W7ZOI , KK7B and W7PUA. Most modules are built in 'ugly contruction'
style for best possible (RF) stability and low cost .

Frank GM0CSZ / KN6WH
  #24   Report Post  
Old April 17th 07, 05:29 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 42
Default Putting the Ham back into Ham Radio?

"G.A.Evans G4SDW" wrote in message
...
No takers for a joint effort, then?


Really Gareth, I think this is something you should get going.
Prove your idea is a "goer" and I'm sure others will join in.

Good luck with it.

--
73
Brian, G8OSN
www.g8osn.org.uk

Now your amateur licence is free, why not send at least £15 per year to
support the
Radio Communications Foundation or STELAR?


  #25   Report Post  
Old April 17th 07, 05:35 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 12
Default Putting the Ham back into Ham Radio?


Brian Reay wrote:

"G.A.Evans G4SDW" wrote in message
...

Might we all act together to produce a series
of "biscuits" that could then be assembled
Lego-like fashion to produce any rig or test
equipment?


A truely excellent idea Gareth.

Why don't you rough out a plan and design a few of these "biscuits" and
publish them on a website or maybe in one of the various journals that
support the hobby.

Good luck and I look forward to seeing your first designs.


I look forward to seeing the implementation of the design of the first
unit ever to incorporate the Big-K approach to DSP.
--
from
Aero Spike


  #26   Report Post  
Old April 17th 07, 05:46 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 42
Default Putting the Ham back into Ham Radio?

"Spike" wrote in message
...

Brian Reay wrote:

"G.A.Evans G4SDW" wrote in message
...

Might we all act together to produce a series
of "biscuits" that could then be assembled
Lego-like fashion to produce any rig or test
equipment?


A truely excellent idea Gareth.

Why don't you rough out a plan and design a few of these "biscuits" and
publish them on a website or maybe in one of the various journals that
support the hobby.

Good luck and I look forward to seeing your first designs.


I look forward to seeing the implementation of the design of the first
unit ever to incorporate the Big-K approach to DSP.


To be fair, I'd like to see some of his projects published and will even
offer to host them on a website- with full credit for their design etc.
attributed to Gareth.

--
73
Brian, G8OSN
www.g8osn.org.uk

Now your amateur licence is free, why not send at least £15 per year to
support the
Radio Communications Foundation or STELAR?




  #27   Report Post  
Old April 17th 07, 05:58 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 12
Default Putting the Ham back into Ham Radio?


Brian Reay wrote:

"Spike" wrote in message
.. .

I look forward to seeing the implementation of the design of the first
unit ever to incorporate the Big-K approach to DSP.


To be fair, I'd like to see some of his projects published and will even
offer to host them on a website - with full credit for their design etc.
attributed to Gareth.


Quite so. It's just going to be interesting seeing how certain topics
he's posted on in the past turn out in reality.

A cynic might say that by involving others in the design, the
fall-guys are already being lined up ready for any failure that might
arise.
--
from
Aero Spike
  #28   Report Post  
Old April 17th 07, 06:03 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 42
Default Putting the Ham back into Ham Radio?

"Spike" wrote in message
...

Brian Reay wrote:

"Spike" wrote in message
. ..

I look forward to seeing the implementation of the design of the first
unit ever to incorporate the Big-K approach to DSP.


To be fair, I'd like to see some of his projects published and will even
offer to host them on a website - with full credit for their design etc.
attributed to Gareth.


Quite so. It's just going to be interesting seeing how certain topics
he's posted on in the past turn out in reality.

A cynic might say that by involving others in the design, the
fall-guys are already being lined up ready for any failure that might
arise.


Well, if he comes up with some designs he is vindicated. If the biscuits
turn out to never to be at least half baked then you are vindicated.

He has suggested the idea, I've supported it and offered to host the designs
the ball is now in his court.

--
73
Brian, G8OSN
www.g8osn.org.uk

Now your amateur licence is free, why not send at least £15 per year to
support the
Radio Communications Foundation or STELAR?


  #29   Report Post  
Old April 17th 07, 06:10 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 12
Default Putting the Ham back into Ham Radio?


Brian Reay wrote:

"Spike" wrote in message
.. .

Brian Reay wrote:

"Spike" wrote in message
...

I look forward to seeing the implementation of the design of the first
unit ever to incorporate the Big-K approach to DSP.

To be fair, I'd like to see some of his projects published and will even
offer to host them on a website - with full credit for their design etc.
attributed to Gareth.


Quite so. It's just going to be interesting seeing how certain topics
he's posted on in the past turn out in reality.

A cynic might say that by involving others in the design, the
fall-guys are already being lined up ready for any failure that might
arise.


Well, if he comes up with some designs he is vindicated. If the biscuits
turn out to never to be at least half baked then you are vindicated.

He has suggested the idea, I've supported it and offered to host the designs
the ball is now in his court.


Well, I still recall the FT-707 that was bought in order to implement
a DSP CW transceiver for 136 kHz.

It fell at the first hurdle as it wouldn't work on CW.

Despite receiving helpful suggestions via this medium, Gareth never
saw them due to 'an ISP failure'; and nothing more has been heard of
the project - at least on here.

--
from
Aero Spike
  #30   Report Post  
Old April 17th 07, 08:51 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 38
Default Putting the Ham back into Ham Radio?

One notorious attention seeker has milked the suggestion
for everything he could get out of it, and has offered no
support for the proposal at all, but is claiming that he has.

Not a difficult guess to name the culprit, I think!

wrote in message ...
No takers for a joint effort, then?

wrote in message
...
I wonder if we who are the Usenet-frequenting Radio
Hams might somehow get together to sort out the
dreadful mess that has been created in no small
part by the self-interest of those who control
the RSCB?






Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Putting the "Real" back into _REAL_ Ham Radio Polymath Homebrew 18 October 25th 05 03:21 PM
Putting the "Real" back into _REAL_ Ham Radio Polymath Policy 18 October 25th 05 03:21 PM
Putting up an Imax Buther Boy CB 16 October 24th 05 05:02 PM
Putting up an Imax Steveo Policy 0 October 19th 05 11:01 PM
Putting ARRL back "mainstream" with hometown hams KØHB Policy 163 May 22nd 05 09:51 PM


All times are GMT +1. The time now is 08:11 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017