Date   

Re: Competition heats up

Kristoff Bonne
 

Hi,


On 23-04-13 18:55, vbifyz wrote:
 

http://beagleboard.org/Products/BeagleBone%20Black
It is expected to be $45 when generally available. For $10 more than RPi you get:
- more GPIO
- power supply included
- faster CPU
- 2GB onboard flash

There already was competition:
See here: http://www.pcduino.com/


Anycase, great to see all these new products. No question about that!


73
Kristoff - ON1ARF


Re: Competition heats up

Stephen <squirrox@...>
 

Wow, I want one....if not two...

73s Steve G0XAR

--- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "vbifyz" <3ym3ym@...> wrote:

http://beagleboard.org/Products/BeagleBone%20Black
It is expected to be $45 when generally available. For $10 more than RPi you get:
- more GPIO
- power supply included
- faster CPU
- 2GB onboard flash


Competition heats up

vbifyz
 

http://beagleboard.org/Products/BeagleBone%20Black
It is expected to be $45 when generally available. For $10 more than RPi you get:
- more GPIO
- power supply included
- faster CPU
- 2GB onboard flash


Re: FTDIGI for Raspberry Pi

Michael O'Bannon
 

Mecsr,

Earlier this year, I tried unsuccessfully to get fldigi working on a RPi. I did get it to display a working GUI window and waterfall, but the psk31 decoding was fragmentary. It correctly decoded less that 50% of the characters at best, and sometimes none at all. Performance was worse for other modes. CPU usage was maxed out nearly all the time and overclocking didn't help.

I see from the link provided by Steve that others have had the same problem, although a few report success. Success may be associated with using the SignalLink box, but it's not clear whether that's always true.

I was using an early 256MB RPi with a slow SD card and a low-end USB audio dongle. One or more of these factors may have been the problem. Perhaps someone else on this list has had more success.

73,
Michael KD4SGN


Re: Poll: computing background of people starting of with the RasPi

Dave Cochran <dave@...>
 

What was wrong with the paper tapes?  Lol

An embroidery shop that I did IT work for still used them back in the early eighties.   It was not too long ago I finally tossed my very first program i wrote (late 70s) in the burn barrel...it was on punch cards.   I even gave them the infamous "punch card shuffle" before tossing them in.

Dave - NOTRQ

On Apr 23, 2013 8:22 AM, "Fran Miele" <fran@...> wrote:
 

How about paper tape and punch cards! LOL

--Fran

 


 

I bet you know about wordmarks & tapemarks!

On 4/22/2013 6:43 PM, Fran Miele wrote:

Well lets see, where to begin!  I am a retired IT middle management person of over 40 years  I worked for several major insurance companies in Hartford Connecticut. I started as an IBM 1401 programmer and made my way up to the Director of  Intel infrastructure Department which procured, deployed and managed all the companies INTEL based servers. After 37 years I was laid off and ended up working for a small Manufacturing shop at the hands-on IT manager. That is where I concluded my career.

I have been a HAM since 1988.


--
John Ferrell W8CCW
That which can be destroyed by the truth should be.
P.C. HODGELL
  



Re: Poll: computing background of people starting of with the RasPi

 

How about paper tape and punch cards! LOL

--Fran

 


 

I bet you know about wordmarks & tapemarks!

On 4/22/2013 6:43 PM, Fran Miele wrote:

Well lets see, where to begin!  I am a retired IT middle management person of over 40 years  I worked for several major insurance companies in Hartford Connecticut. I started as an IBM 1401 programmer and made my way up to the Director of  Intel infrastructure Department which procured, deployed and managed all the companies INTEL based servers. After 37 years I was laid off and ended up working for a small Manufacturing shop at the hands-on IT manager. That is where I concluded my career.

I have been a HAM since 1988.


--
John Ferrell W8CCW
That which can be destroyed by the truth should be.
P.C. HODGELL
  



Re: Rasp Pi GMSK modem daughter board

Teton Amateur Radio Repeater Association (TARRA)
 

Oops, sorry was sending this to someone in private and forgot to change the address.

Mick - W7CAT

----- Original Message -----
From: Teton Amateur Radio Repeater Association
To: Raspberry_Pi_4-Ham_RADIO@...
Sent: Monday, April 22, 2013 08:53:56 PM
Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Rasp Pi GMSK modem daughter board

> Hello Chris,
>
> Take a look at this and you may also my be interested in this Yahoo
> group too.
>
> Mick
>
> ----- Original Message -----
> From: "mark_w6sat"
> To: Raspberry_Pi_4-Ham_RADIO@...
> Sent: Sunday, April 21, 2013 03:42:22 PM
> Subject: [Raspberry_Pi_4-Ham_RADIO] Rasp Pi GMSK modem daughter board
>
> > Good morning all.
> >
> > At our monthly luncheon yesterday Jim (KI6ZUM) introduced a project
> he has been working on. Its a daughter board GMSK modem for the Rasp Pi.
> >
> > Software is still being developed for this but its looks very promising.
> >
> > http://www.ki6zum.com/index.html
> >
> > 73
> >
> > Ted
> > W6SAT
> >
> >
> >
>
> --
> Untitled Document
>
> Be sure to check out all the latest at our web site
> and look at our repeater sites
> !
>
>
>
>

--

Be sure to check out all the latest at our web site and look at our repeater sites!



Re: Poll: computing background of people starting of with the RasPi

David Rowell
 

Just missed the IBM 650(?) drum memory machine at Syracuse! Learned FORTRAN and card punching on IBM 7074(?) in '65. Programmed a Systron Donner(?) analog computer to solve some drive train dynamics issues. Then GE timesharing and a bunch of seminars. Programmed system software and Algor drivers for HP 2100. First - of many - home computer was Commodore VIC-20 and it went downhill from there! Currently using a little quad core Gateway mini-desktop with 4 GB RAM and 640GB drive - obsolete probably but I'm really tickled with it!

Started using various linux distro's in the late '90's settling on Ubuntu around '05. Since Unity I've been a happy Linux Mint Cinnamon user. I've done a lot of MS Professional Basic and a little C and Fortran programming at work on Windows and at home on Linux.

Been a HAM for a few years and Extra since 2010. Living in a CC&R situation kinda restricts my activity tho. Dad was a HAM from the spark gap days.

--
Congres' motto - "Never put off today what you can put off tomorrow"


Re: FTDIGI for Raspberry Pi

Stephen <squirrox@...>
 

Hi OM,

See this link.

http://www.amateurradiopi.com/forum/viewtopic.php?f=3&t=2&sid=765e3bb5d12e848e9cc4b8390fb4cf63

You will need some sort of external sound card.

73s Steve G0XAR

--- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "Michael E. Califf,Sr" <mecsr@...> wrote:

Yes it’s probably FLDIGI it’s been awhile since I’ve played with this type of stuff. Need to know how to install it and then what connections to make.

Mecsr AB7OC MikeSr


Re: Rasp Pi GMSK modem daughter board

Heikki Hannikainen
 

On Tue, 23 Apr 2013, Kristoff Bonne wrote:

On 23-04-13 06:49, Heikki Hannikainen wrote:

Speaking of GMSK, the g4klx D-Star software packages contain GMSK DSP
modems too, and they're GPL'd.
Well, it shouldn't be that much different from my code as ... it's actually the same code (only converted from C++ to C).
Ah ok. And Jonathan said his demodulator is based on Tomi's demodulator in gnuais. So, all from the same tree, more or less. :)

Later on, the project moved from D-STAR (to much polities, to little technology) to codec2 (much more fun).
Good good, I think we'll be having fun with your code over here in the near future! Less politics, more code is good.

Hmm. Spare time ... hmmmmm! That would be nice! Where can I buy that:-)
Some employers actually sell that (mine does, luckily), they deduce the price directly from your salary, calling it "unpaid vacation".

- Hessu


Re: FTDIGI for Raspberry Pi

Mecsr
 

Yes it’s probably FLDIGI it’s been awhile since I’ve played with this type of stuff. Need to know how to install it and then what connections to make.
 
Mecsr  AB7OC   MikeSr


Re: Rasp Pi GMSK modem daughter board

Kristoff Bonne
 

Hi Heikki,


On 23-04-13 06:49, Heikki Hannikainen wrote:
 

On Mon, 22 Apr 2013, Kristoff Bonne wrote:

> I have a project for a gmsk modem for codec2 (c2gmsk) which can run on a raspberry pi but using USB audio-dongles.
> (see http://villazeebries.krbonne.net/hamstuff/ and
> https://github.com/on1arf/gmsk/wiki/Installation-procedure-for-the-c2gmsk-modem-on-raspberry-pi)

Speaking of GMSK, the g4klx D-Star software packages contain GMSK DSP
modems too, and they're GPL'd.

Well, it shouldn't be that much different from my code as ... it's actually the same code (only converted from C++ to C).

The c2gmsk project started out as a small personal project as I was interested to known "what is exactly inside all these famous D-STAR GMSK modems". As Jonathan's code was the only that was publically available I started out with that.

After a while, the project resulted in the "what is really inside a D-STAR stream" webpage which is now part of the "D-STAR, DV and GMSK" talk I give from time to time.

(BTW. If people would be in Belgium on the 4th of may. I will be giving that talk again on the anual congress of the UBA (the Belgian national radio organisation). I have not yet descided it I will do it in dutch or english).


Later on, the project moved from D-STAR (to much polities, to little technology) to codec2 (much more fun).


The gnuais project contains a GMSK
demodulator for AIS (https://github.com/rubund/gnuais), I recently
optimized it a bit to make it run much faster on the RPi (well, consume
less CPU anyway).

Well, if you have some inner knowledge on GMSK, I did try out a 2400 bps version of the GMSK modem for c2gmsk modem, but it has never been well tested.



If someone had lots of spare time, it might be a good exercise to compare
the performance of these modems, maybe some of them could be improved
based on the others.

Hmm. Spare time ... hmmmmm! That would be nice! Where can I buy that:-)


- Hessu

73
Kristoff - ON1ARF


Re: Rasp Pi GMSK modem daughter board

Heikki Hannikainen
 

On Mon, 22 Apr 2013, Kristoff Bonne wrote:

I have a project for a gmsk modem for codec2 (c2gmsk) which can run on a raspberry pi but using USB audio-dongles.
(see http://villazeebries.krbonne.net/hamstuff/ and
https://github.com/on1arf/gmsk/wiki/Installation-procedure-for-the-c2gmsk-modem-on-raspberry-pi)
Speaking of GMSK, the g4klx D-Star software packages contain GMSK DSP modems too, and they're GPL'd. The gnuais project contains a GMSK demodulator for AIS (https://github.com/rubund/gnuais), I recently optimized it a bit to make it run much faster on the RPi (well, consume less CPU anyway).

If someone had lots of spare time, it might be a good exercise to compare the performance of these modems, maybe some of them could be improved based on the others.

- Hessu


Re: Poll: computing background of people starting of with the RasPi

 

I remember the 1401.  My first was the 1160. Abt 1971

1st licensed in 1973




Sent from Samsung tablet

Fran Miele <fran@...> wrote:
 

Well lets see, where to begin!  I am a retired IT middle management person of over 40 years  I worked for several major insurance companies in Hartford Connecticut. I started as an IBM 1401 programmer and made my way up to the Director of  Intel infrastructure Department which procured, deployed and managed all the companies INTEL based servers. After 37 years I was laid off and ended up working for a small Manufacturing shop at the hands-on IT manager. That is where I concluded my career.

I have been a HAM since 1988.

--Fran, W1FJM

 




Re: FTDIGI for Raspberry Pi

Michael O'Bannon
 

Do you by any chance mean fldigi? I'm not familiar with ftdigi, but I have experimented with fldigi.

Best regards,
Michael KD4SGN

I am a 73 year old disabled Veteran,and a newbie to Raspberry Pi,I am also a Ham Radio Operator,(callsign AB7OC) Can someone explain to me in little people words how to install FTDIGI onto Pi and run the program for Ham use??? Connections needed would be nice too.

Mecsr AB7OC MikeSr


Re: Rasp Pi GMSK modem daughter board

Teton Amateur Radio Repeater Association (TARRA)
 

Hello Chris,

Take a look at this and you may also my be interested in this Yahoo group too.

Mick

----- Original Message -----
From: "mark_w6sat"
To: Raspberry_Pi_4-Ham_RADIO@...
Sent: Sunday, April 21, 2013 03:42:22 PM
Subject: [Raspberry_Pi_4-Ham_RADIO] Rasp Pi GMSK modem daughter board

> Good morning all.
>
> At our monthly luncheon yesterday Jim (KI6ZUM) introduced a project he has been working on. Its a daughter board GMSK modem for the Rasp Pi.
>
> Software is still being developed for this but its looks very promising.
>
> http://www.ki6zum.com/index.html
>
> 73
>
> Ted
> W6SAT
>
>
>

--

Be sure to check out all the latest at our web site and look at our repeater sites!



Re: Poll: computing background of people starting of with the RasPi

John
 

I bet you know about wordmarks & tapemarks!

On 4/22/2013 6:43 PM, Fran Miele wrote:

Well lets see, where to begin!  I am a retired IT middle management person of over 40 years  I worked for several major insurance companies in Hartford Connecticut. I started as an IBM 1401 programmer and made my way up to the Director of  Intel infrastructure Department which procured, deployed and managed all the companies INTEL based servers. After 37 years I was laid off and ended up working for a small Manufacturing shop at the hands-on IT manager. That is where I concluded my career.

I have been a HAM since 1988.


-- 
John Ferrell W8CCW
That which can be destroyed by the truth should be.
P.C. HODGELL
  


Re: Poll: computing background of people starting of with the RasPi

 

Well lets see, where to begin!  I am a retired IT middle management person of over 40 years  I worked for several major insurance companies in Hartford Connecticut. I started as an IBM 1401 programmer and made my way up to the Director of  Intel infrastructure Department which procured, deployed and managed all the companies INTEL based servers. After 37 years I was laid off and ended up working for a small Manufacturing shop at the hands-on IT manager. That is where I concluded my career.

I have been a HAM since 1988.

--Fran, W1FJM

 




Re: Message postings -

pmooney22 <pmooney22@...>
 

'Trimmed' rather than 'cut' I believe entirely apporpriate

If a subject goes off thread why not delete the items that are not appropriate to the part of the thread that are not pertinent to the part you engaged in?

Yes, I'm an old fart who grew up on bulletin boards where activities such as top-posting carried a death sentence (thanks for Outlook, Microsoft).

Paul
5B8BA

--- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Fran Miele <fran@...> wrote:

I think some inclusions should not be trimmed. If you trim everything then
you don't know what the reply is pertaining too. The subject isn't enough
because many time the threads go off subject.

--Fran



<http://s.wisestamp.com/links?url=http%3A%2F%2Fwww.ccdl.us%2F>
<http://s.wisestamp.com/links?url=http%3A%2F%2Fwww.miele-family.com%2Fweather>


IMPORTANT: The contents of this email and any attachments are confidential.
They are intended for the named recipient(s) only. If you have received
this email by mistake, please notify the sender immediately and do not
disclose the contents to anyone or make copies thereof.


On Mon, Apr 22, 2013 at 5:41 AM, Kutche, Jerry (Mitchell) USA <
JKutche@...> wrote:

**


(Please trim inclusions from previous messages)

Thanks.

Group Owner/Moderator






Re: Rasp Pi GMSK modem daughter board

Kristoff Bonne
 

Hi Mark,


On 21-04-13 23:42, mark_w6sat wrote:
 

Good morning all.

At our monthly luncheon yesterday Jim (KI6ZUM) introduced a project he has been working on. Its a daughter board GMSK modem for the Rasp Pi.
Software is still being developed for this but its looks very promising.

Surely looks interesting.

I have a project for a gmsk modem for codec2 (c2gmsk) which can run on a raspberry pi but using USB audio-dongles.
(see http://villazeebries.krbonne.net/hamstuff/ and https://github.com/on1arf/gmsk/wiki/Installation-procedure-for-the-c2gmsk-modem-on-raspberry-pi)

But I am very interested in a hardware solution for the modem, especially as it seams to be released as open source.


I will surely contact Jim for this.


Thanks for the link.


73
Ted
W6SAT

73
kristoff - ON1ARF

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