Date   

Re: Raspberry Pi

Jeremy Utley
 

I have a R-Pi here at home, running an APRS Digi/I-Gate.  I'm a linux guy in the day job, so I'll be happy to help you out with any questions you might have.  Just drop me a line!

Jeremy, N9PH

On 4/16/2013 6:35 PM, Jim Sheldon wrote:
 
Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


Re: Raspberry Pi

Jim Sheldon
 

Having successfully put the Android OS on a Barnes and Noble Nook, I already had the resources on hand to load Raspbian on a 16 gig Micro SD card and have it ready for when the Rpi gets here. It passed the hash code check so I'm pretty sure it'll boot up. I've got a little 20 gig USB hard drive that might run via the powered hub as well - remains to be seen, but worth a try at any rate. Got big plans for it, now to see how much will work. I've got an adjustable 2 amp regulator board that I plan on setting up to power it off a 12 volt supply and/or an 8 amp hour battery pack.

Jim

Sent from my iPad

On Apr 16, 2013, at 9:33 PM, Nate Bargmann <@n0nb> wrote:

I received mine about three weeks ago from MCM. I went the cheap route
and opted to write the OS to the SD card myself. It took a couple of
tries as I had to read the instructions *carefully* after the first
couple of failed writes (I was writing to the wrong device (partition)).

Regardless, it is running a custom version of Debian--Raspbian--so it is
quite familiar to me as that is the same distribution I use. I hope to
use mine for the brains of a satellite az-el controller with a custom
Hamlib backend. I'm too busy with other stuff right now to start on it,
perhaps next winter. I plan to have it drive the interface described in
December 1998 QST which used two U-100 rotors. I have a few of those
laying around.

With the Hamlib network rotor daemon running, it should be a simple
matter of having Gpredict aim the antennas. Yes, it's overkill for
LEO's, but sometimes reinventing the wheel with complexity is its own
sort of enjoyment. :-)

72, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us


------------------------------------

4SQRP Website: http://4sqrp.com
OzarkCon is coming April 5-6 in Branson, MO
View Details at http://www.ozarkcon.com/index.phpYahoo! Groups Links



Re: Raspberry Pi

Jim Sheldon
 

Thanks Nate, I had already gathered that. I've got a nice powered USB 2.0 hub just waiting for the pi to get here. I'm sure I'll find lots of stuff that won't run on it, but for $35 it's worth a shot.

Jim

Sent from my iPad

On Apr 16, 2013, at 9:40 PM, Nate Bargmann <@n0nb> wrote:

A word on the Pi's USB ports, they cannot source much power so it is
wise to connect the USB devices to it using a powered USB hub. A
keyboard and mouse is probably the limit that it can support without a
hub.

72, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us


------------------------------------

4SQRP Website: http://4sqrp.com
OzarkCon is coming April 5-6 in Branson, MO
View Details at http://www.ozarkcon.com/index.phpYahoo! Groups Links



Re: Raspberry Pi

Ray Cadmus
 

The Pi is a neat little computer - unfortunately not enough zip to handle fldigi.  There is an alternative that works.  Check out the linpsk demo on AmateurLogic.tv episode 53.  George has tried fldigi and gave up.  linpsk seems to work OK.   An older episode of AmateurLogic.tv has George making a nice case for the Pi from a common electrical box.  Then a later episode still he builds a 12v to 5v regulator to power his from the shack power supply.

Do you get the idea that I like AmateurLogic?  Nice shows...

My Pi is loafing along doing lots of nothing right now.  Had it set up as a web server for a while but since I have another that isn't really needed.  I just do a remote login now and then and ask it how it's doing.  Still looking for the killer app to put on it.  Playing with call sign lookup,  Reverse Beacon reads,  logging and such.   Am finding my programming skills a bit rusty so am having to re-learn lots of stuff myself.

Don't be afraid to try it - lots of help available.  Good tutorials on AdaFruit,  RaspberryPiSpy and others.

should you be really desperate,  I'm here to answer whatever I can.

Enjoy,

ray    W0PFO

--

On 04/16/2013 06:35 PM, Jim Sheldon wrote:
 
Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


Re: 5 watts

Johnny AC0BQ
 

Ge Dan:
Sometimes the QRO boys will go deaf on you!
You were 599 or so when they heard you and all of a sudden you  got lost in the QSB.
Would you call that "selective hearing"
Have Fun, good job!
72
Johnny AC0BQ


On Tue, Apr 16, 2013 at 9:10 PM, Daniel J. Mullen <hamdad2m@...> wrote:
 

4sqrp,
Tonight I was talking to a station down in Texas and sent that I was running 5 watts. His next exchange was "r r ok Dan did you say 5 watts ?".
Tell me if that wasn't fun!
73 es God Bless KD0SZS

Sent from my iPhone



Re: Raspberry Pi

 

A word on the Pi's USB ports, they cannot source much power so it is
wise to connect the USB devices to it using a powered USB hub. A
keyboard and mouse is probably the limit that it can support without a
hub.

72, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us


Re: Raspberry Pi

 

I received mine about three weeks ago from MCM. I went the cheap route
and opted to write the OS to the SD card myself. It took a couple of
tries as I had to read the instructions *carefully* after the first
couple of failed writes (I was writing to the wrong device (partition)).

Regardless, it is running a custom version of Debian--Raspbian--so it is
quite familiar to me as that is the same distribution I use. I hope to
use mine for the brains of a satellite az-el controller with a custom
Hamlib backend. I'm too busy with other stuff right now to start on it,
perhaps next winter. I plan to have it drive the interface described in
December 1998 QST which used two U-100 rotors. I have a few of those
laying around.

With the Hamlib network rotor daemon running, it should be a simple
matter of having Gpredict aim the antennas. Yes, it's overkill for
LEO's, but sometimes reinventing the wheel with complexity is its own
sort of enjoyment. :-)

72, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us


Re: 5 watts

Bill Cromwell
 

On Tue, 2013-04-16 at 21:10 -0500, Daniel J. Mullen wrote:

4sqrp,
Tonight I was talking to a station down in Texas and sent that I was
running 5 watts. His next exchange was "r r ok Dan did you say 5
watts ?".
Tell me if that wasn't fun!
73 es God Bless KD0SZS

Sent from my iPhone
Heh,

Once upon a time I fired up an Argonaut on 15 meter SSB and answered a
CQ from Florida (I'm in Michigan). That guy was running a full legal
limit amp turned right up. He gave me a five nine report and some more
information. When I went back and reported my 2 watts to a very low
dipole I heard a loud noise when his dentures fell out and hit the desk,
tripping his VOX! (evil grin). He was astounded.

When the propagation fairies are playing we don't need much power at
all. A fellow in Sweden once told me he worked a Kansas station on 20
meter SSB with 200 milliwatts with 59 reports! He couldn't turn his
drive down any lower.

Ain't it great!?!

73,

Bill KU8H


Re: Raspberry Pi

Bill Cromwell
 

On Tue, 2013-04-16 at 20:51 -0500, Charlie , W5COV wrote:

I am not up to speed on these Raspberry Pi's . I have seen them
mentioned on other groups , plus an article on one hams web page that
was using his as a transmitter . Same ham that wrote the QST January
2013 article about using the foreign TV USB Dongle , as an SDR and an
up converter to also use it on MW , LF , in addition to its original
VHF/UHF configuration I think .

So for a beginner , I am looking for help and guidance in what to
order to get started . I want a good enough unit that I will be able
to use as I advance . On the MCM web page I think I am looking for
something from the "B" group , since the ones I assume that are being
used are the ones with more memory and in my case , I also want one ,
from what I can tell , that already has Linux installed . Linux is
also a pretty weak area of mine also .

So what do you all recommend ? I don't want to go all out right off of
the bat , so I also want to be frugal "read cheap" at first :) I have
far more time than money :)

Charlie , W5COV

Hi Charlie,

I am not up to speed on those PIs either so I went and looked at their
web site. I think you are right about the B model being the one to get.
The prices I saw were $35 for that compared to $25 for the lesser A
model. I think the A would work but $10 for for the better one is a
no-brainer. That $10 difference would be big deal for somebody who needs
a boxcar full of them for a school. Not for us. I plan to play with one.
I have several things in mind to try with it but like you, I don't want
to go whole hog right up front. I'll run mine with a television for a
display. I have been using Linux for decades now so that part is
something I won't have to deal with. I am still using a television as
the display for my Apple II (grin). I intend to use a USB "thumb"
drive..they're cheap AND I already have two or three laying around here
that I use for "sneakernet". Small keyboards and mice/trackballs are
also inexpensive and can use the USB ports.

Finally...something new that's digital AND that I can get excited about!
If my experiments work out I may need several!

73,

Bill KU8H


5 watts

Daniel Mullen
 

4sqrp,
Tonight I was talking to a station down in Texas and sent that I was running 5 watts. His next exchange was "r r ok Dan did you say 5 watts ?".
Tell me if that wasn't fun!
73 es God Bless KD0SZS

Sent from my iPhone


Re: Raspberry Pi

Charlie Vest
 

I am not up to speed on these Raspberry Pi's . I have seen them mentioned on other groups , plus an article on one hams web page that was using his as a transmitter . Same ham that wrote the QST January 2013 article about using the foreign TV USB Dongle , as an SDR and an up converter to also use it on MW , LF , in addition to its original VHF/UHF configuration I think .

So for a beginner , I am looking for help and guidance in what to order to get started . I want a good enough unit that I will be able to use as I advance . On the MCM web page I think I am looking for something from the "B" group , since the ones I assume that are being used are the ones with more memory and in my case , I also want one , from what I can tell , that already has Linux installed . Linux is also a pretty weak area of mine also .

So what do you all recommend ? I don't want to go all out right off of the bat , so I also want to be frugal "read cheap" at first :)  I have far more time than money :)

Charlie , W5COV

 

Jim,
    I ordered and received mine before OzarkCon but haven't powered it up yet.

On 04/16/2013 06:35 PM, Jim Sheldon wrote:
 
Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


--
David Martin - K5DCM ---o0o---
Mountain Home, Arkansas

Guns don't kill people, any more than spoons & forks cause obesity.
Automobile efficiency is measured in MPG, NOT Gallons per Mile.
Amateur Radio efficiency, fun & skill is measured by Miles Per Watt, NOT Watts per Mile.

 



Re: Raspberry Pi

David Martin <davemrtn@...>
 

Jim,
    I ordered and received mine before OzarkCon but haven't powered it up yet.

On 04/16/2013 06:35 PM, Jim Sheldon wrote:
 
Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


--
David Martin - K5DCM ---o0o---
Mountain Home, Arkansas

Guns don't kill people, any more than spoons & forks cause obesity.
Automobile efficiency is measured in MPG, NOT Gallons per Mile.
Amateur Radio efficiency, fun & skill is measured by Miles Per Watt, NOT Watts per Mile.

 


Re: Raspberry Pi

Walter - K5EST
 

RP's are awesome. There is a great bunch if us on Twitter!

My Pi is not hooked up yet to any rigs. The HDMI output will look great on a big screen TV:-)

73....Walter . K5EST

On Apr 16, 2013 6:35 PM, "Jim Sheldon" <w0eb@...> wrote:
 

Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


Re: W0RW

Paul Smith
 

Hey I heard u good job. The PRC is a pack radio  Vietnam nam era and before. Rock bound I believe. I have worked him before. He uses a short loaded whip and a drag wire. It probably helps when he is transmitting from 5k feet or higher. De Paul 

Sent from my iPad

On Apr 16, 2013, at 7:27 PM, Johnny Matlock <jomatlock@...> wrote:

 

Hey Paul 

I tailgated you!
I have to ask what is a PRC 64 6?

On Tuesday, April 16, 2013, Paul Smith wrote:
 

I just worked Paul on his PRC 64 6 his six watts sounded good.. He is calling CQ about 70299 de Paul N0NBD

Sent from my iPad


Re: W0RW

Johnny AC0BQ
 

Hey Paul 
I tailgated you!
I have to ask what is a PRC 64 6?


On Tuesday, April 16, 2013, Paul Smith wrote:
 

I just worked Paul on his PRC 64 6 his six watts sounded good.. He is calling CQ about 70299 de Paul N0NBD

Sent from my iPad


W0RW

Paul Smith
 

I just worked Paul on his PRC 64 6 his six watts sounded good.. He is calling CQ about 70299 de Paul N0NBD

Sent from my iPad


Re: Raspberry Pi

Johnny AC0BQ
 

Ge Jim

Sounds like fun!
Where did you get the main Board?
Is like one of the miniature Scopes some of the guys were playing with a while back?
Tnx
72
Johnny
AC0BQ



On Tuesday, April 16, 2013, Jim Sheldon wrote:
 

Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


Re: Raspberry Pi

Gary <countyhunterw4gns@...>
 

  Have fun with it Jim ! I have wanted one really bad, but I bought a Beaglebone, so I can’t really justify a Raspberry Pi.
 
73 Gary W4GNS
 

Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards. 
Jim - W0EB
 


Raspberry Pi

Jim Sheldon
 

Well, I did it.  Took the plunge and ordered one of those little Raspberry Pi credit card sized Linux computer boards.  I've wanted a good reason to learn Linux but I didn't want to set up a dual boot partition on my main Windows computer or the laptop so this little board will fill the bill nicely.  It even has HDMI video out and I ordered an HDMI to VGA adapter so I can hook it to a decent extra flat screen monitor I happen to have laying around here.  I've heard that quite a few of the ham radio apps that have been compiled for Linux will run on it, and FLDIGI for certain, so it looks to become a really nice field companion for my Elecraft KX3.  
 
If anyone on here has one of these, I'd appreciate any help available to get started with it.  I should receive it probably early next week.  These things are so popular that most places can't seem to be able to keep 'em in stock but I lucked out and found that MCM Electronics had some left.  I've dealt with them before and always had good luck with their customer service so I ordered the board from them.  The rest of the stuff I'm getting from www.adafruit.com who was out of the computers but had the accessories I wanted in stock.  I'll probably order one of the add on "real world" controller/breadboard cards to enable all sorts of neat external device control possibilities.
 
Jim - W0EB
 


Re: QRP Gear Temptations

James Rodenkirch
 

 I have the Ten Tec VI, Gary, and LOVE it...that receiver is SO easy to listen to!  72, Jim Rodenkirch K9JWV

 

To: 4sqrp@...
From: gary.w5rej@...
Date: Tue, 16 Apr 2013 22:56:49 +0000
Subject: [4sqrp] QRP Gear Temptations

 
Greetings gang,

The title is not my own doing. It is a subject in new member Mike/AD5A's blog at ad5aradio.blogspot.com. The entire blog is great reading but that particular article struck a chord with me.

I was looking on a shelf in my office and did a quick inventory:
1. An original DSW-20 from SWL.
2. A two band K1 for 40 and 20
3. A Ten Tec Scout turned down to 15 watts to satisfy my QRO urge.
4. An Argonaut V
5. A yet to be built Pig Rig.
6. A yet to be built Fire Fly transceiver for 30m
7. A yet to be built Softrock Ensemble RX II.
8. A yet to be built Softrock RxTx II.
9. A yet to be built Softrock RxTX v6.2 for 20 and 30m.

Like Mike I am wondering just how many QRP rigs to I really need?

And then I see the ads for the KX3 and the Argonaut VI. (drooling)

Does this ever end? (After 45+ years at this I am afraid I know the answer!)

Gary/W5REJ