开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. RaspberryPi-4-HamRadio
  2. Messages
Expanded Topics Messages Polls
Date
Question of telnet

 

Hello, All;

?Im currently working on a bbs project on one of my pi's. Once I get it running and figures it out I want to try hooking into my broadband hamnet routers I have set-up.

?I have managed to get my way thru installing and setting up arch linux, and then got mystic bbs dwnld and some what configured. To pat myself on the back with alot of hair pulling and not outside help cause Im still learning linux.

Now Im alittle confused on telnet stuff, Do I just need to download telnet client or find telnet server? In everything I have found on my search most people suggest telnetd, but some say server other say client.

Next question is can some one point me to possible a article or show me a example of adding a repoistory for pacman to search for files. Im currently downloading files to usb stick on my laptop and transfering them over to pi.
I have read the txt file on my pi about setting up a repoistory and Im apparently not understanding something cause I have had no luck and even crash my arch once already.

Learn all this slowly and surely,
Jason Hopkins
KF4PMY
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

开云体育

320x256

On 9/4/2014 7:39 AM, Max Harper kg4pid@... [Raspberry_Pi_4-Ham_RADIO] wrote:

?
What is the image size in pixels?
Re: New file uploaded to Raspberry_Pi_4-Ham_RADIO

[email protected]
 


Here is a short video to show how to set the nbfm tool to behave as a RF signal generator.

?



73s
IK1PLD
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

What is the image size in pixels?

From: "Clinton ve7knl@... [Raspberry_Pi_4-Ham_RADIO]"
To: Raspberry_Pi_4-Ham_RADIO@...
Sent: Wednesday, September 3, 2014 6:51 PM
Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Has anyone used a Raspberry Pi to run Slow Scan Television

?
It's working now.? It takes 2minutes 7 seconds from taking the picture to finishing transmission.? I still have to fiddle with the timing to straighten the picture out but that's not a big deal.


On 9/3/2014 11:07 AM, Mathison Ott mathisono@... [Raspberry_Pi_4-Ham_RADIO] wrote:


?
Here is another example. . ?

So what sort of things until its ready for AIR TIME??

Whats the real world transmission frame rate?

mathison




On Tue, Sep 2, 2014 at 8:22 AM, ve7knl@... [Raspberry_Pi_4-Ham_RADIO] <Raspberry_Pi_4-Ham_RADIO@...> wrote:
?
Hi Mathison.? I've been playing around with

Thanks to David's help, I have captured an image with the picam, transmitted it over 2m and captured it with mmsstv. There's still a ways to go before I'm ready to put it on the air but the test run so far looks good.
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

开云体育

It's working now.? It takes 2minutes 7 seconds from taking the picture to finishing transmission.? I still have to fiddle with the timing to straighten the picture out but that's not a big deal.


On 9/3/2014 11:07 AM, Mathison Ott mathisono@... [Raspberry_Pi_4-Ham_RADIO] wrote:

?
Here is another example. . ?

So what sort of things until its ready for AIR TIME??

Whats the real world transmission frame rate?

mathison




On Tue, Sep 2, 2014 at 8:22 AM, ve7knl@... [Raspberry_Pi_4-Ham_RADIO] <Raspberry_Pi_4-Ham_RADIO@...> wrote:
?

Hi Mathison.? I've been playing around with

Thanks to David's help, I have captured an image with the picam, transmitted it over 2m and captured it with mmsstv. There's still a ways to go before I'm ready to put it on the air but the test run so far looks good.
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

Here is another example. . ?

So what sort of things until its ready for AIR TIME??

Whats the real world transmission frame rate?

mathison




On Tue, Sep 2, 2014 at 8:22 AM, ve7knl@... [Raspberry_Pi_4-Ham_RADIO] <Raspberry_Pi_4-Ham_RADIO@...> wrote:
?

Hi Mathison.? I've been playing around with

Thanks to David's help, I have captured an image with the picam, transmitted it over 2m and captured it with mmsstv. There's still a ways to go before I'm ready to put it on the air but the test run so far looks good.
Re: New file uploaded to Raspberry_Pi_4-Ham_RADIO

[email protected]
 

Dear friends,

attached is the updated version of the bash script to make a beacon / telemetry station / autofox.

Now it is possible to adapt it (the mods are very easy to apply) to be:

- an audio voice and/or packet radio beacon (through the Pi audio output jack),
or
- a FM Radio Transmitter for voice and/or packet radio beacon (through the usual GPIO pin).

If all of the options are enabled, the script makes use of Festival as vocal synthesizer and Alsa as audio manager; so they must be installed properly if they're used.

One of the upgrades concerns the adoption of a ramdisk to avoid the risk of damaging the SD card because of too many writing operations.

The activation of a signal/alarm input from a GPIO pin was also added as for example or suggestion for further implementations.

Another GPIO is set as an output port; this is useful, for example, to light on a led indicating RF output or to switch amplifiers, filters, the PTT of an external Radio and so on.

Now the program "says" the Core temperature, the CPU load and internal clock Time. It gives also an alarm message if the level of the, internally pulled-up, GPIO 22 goes low.

All the data are also stored in the file /mnt/ramdisk/Logger.txt
Please take care it is a temporary saving because it's a ramdisk.

Run ./TX-CPUTemp.sh for help and instructions.

Have fun!
73s de IK1PLD
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

Hi Mathison.? I've been playing around with

Thanks to David's help, I have captured an image with the picam, transmitted it over 2m and captured it with mmsstv. There's still a ways to go before I'm ready to put it on the air but the test run so far looks good.
Re: New file uploaded to Raspberry_Pi_4-Ham_RADIO

[email protected]
 

Dear friends,
attached is the modified packets generator (derived from the great DireWolf by WB2OSZ).
The compiled version is ready for Raspbian.

This utility "pkt2wave" is useful to generate wav files containing unproto packets for testing, telemetry, APRS, Cluster purposes, etc.

The so created wav files can be supplied to the narrow band transmitter "./nbfm" to be able to operate packet radio without needing a TNC nor a Radio.

Please run ./pkt2wave for help and instructions.

Have fun!
73s de IK1PLD
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

That did it.? Thanks David.
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

David Hamill
 

ve7knl wrote:

When I enter

gcc -lgd -lmagic -o pisstv pisstv.c, it comes back

/usr/bin/ld: /tmp/cco9lrR5.o: undefined reference to symbol 'sin@@GLIBC_2.4'

//lib/arm-linux-gnueabihf/libm.so.6: error adding symbols: DSO missing from command line
collect2: ld returned 1 exit status

I'm obviously missing something, but I have no idea what.
This is a message from ld, the linker that forms part of the gcc compilation chain.
It's complaining that it can't find the symbol "sin". I assume this is the mathematical sine function.

The usual reason for this sort of error is that you haven't explicitly asked for the maths library to be linked in. It may seem odd, but C compilers don't usually include the maths library by default, even if the source code contains "#include <math.h>"!

Try adding -lm to the command line options and see if that cures the problem:

gcc -lm -lgd -lmagic -o pisstv pisstv.c

David
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

Interest in this subject I have a RPI with the pi camera. Please post your success so others can try it out.

73 Mathison Kj6dzb
Re: HELP!!!!! ax25 setup issues

 

开云体育

Jay,

?

Yes, the serial ports have to be enabled. The simplest way is by adding parameters to uEnv.txt. I don't have access to my BBB at the moment so can't check my files, but this looks like what I did.

?

http://beaglebone.cameon.net/home/serial-ports-uart

?

I installed Debian on my BBB, but if I remember correctly the same process worked on the original OS.

?

I'll be home on Friday, so if you haven't got it working by then I can check exactly what I have.

?

73, John G8BPQ

?

?

?

?

?

From: Raspberry_Pi_4-Ham_RADIO@... [mailto:Raspberry_Pi_4-Ham_RADIO@...]
Sent: 01 September 2014 18:07
To: Raspberry_Pi_4-Ham_RADIO@...
Subject: [Raspberry_Pi_4-Ham_RADIO] Re: HELP!!!!! ax25 setup issues

?

?

John,

?

I looked in the /dev directory and did not see the "/dev/ttyO1". Below is what is in the "/dev" directory.

?

root@beaglebone:/# ls /dev/tty*

/dev/tty ? ?/dev/tty19 /dev/tty3 ? /dev/tty40 /dev/tty51 ?/dev/tty62

/dev/tty0 ? /dev/tty2 /dev/tty30 ?/dev/tty41 /dev/tty52 ?/dev/tty63

/dev/tty1 ? /dev/tty20 /dev/tty31 ?/dev/tty42 /dev/tty53 ?/dev/tty7

/dev/tty10 ?/dev/tty21 /dev/tty32 ?/dev/tty43 /dev/tty54 ?/dev/tty8

/dev/tty11 ?/dev/tty22 /dev/tty33 ?/dev/tty44 /dev/tty55 ?/dev/tty9

/dev/tty12 ?/dev/tty23 /dev/tty34 ?/dev/tty45 /dev/tty56 ?/dev/ttyGS0

/dev/tty13 ?/dev/tty24 /dev/tty35 ?/dev/tty46 /de v/tty57 ?/dev/ttyO0

/dev/tty14 ?/dev/tty25 /dev/tty36 ?/dev/tty47 /dev/tty58 ?/dev/ttyS0

/dev/tty15 ?/dev/tty26 /dev/tty37 ?/dev/tty48 /dev/tty59 ?/dev/ttyS1

/dev/tty16 ?/dev/tty27 /dev/tty38 ?/dev/tty49 /dev/tty6 ? /dev/ttyS2

/dev/tty17 ?/dev/tty28 /dev/tty39 ?/dev/tty5 /dev/tty60 &nb sp;/dev/ttyS3

/dev/tty18 ?/dev/tty29 /dev/tty4 ? /dev/tty50 /dev/tty61

?

Is there a configuration file to edit so that the UARTS are detected or setup on boot?

?

Jay?

KF7ITF

?
Re: HELP!!!!! ax25 setup issues

[email protected]
 

John,

I looked in the /dev directory and did not see the "/dev/ttyO1". Below is what is in the "/dev" directory.

root@beaglebone:/# ls /dev/tty*
/dev/tty ? ?/dev/tty19 /dev/tty3 ? /dev/tty40 /dev/tty51 ?/dev/tty62
/dev/tty0 ? /dev/tty2 /dev/tty30 ?/dev/tty41 /dev/tty52 ?/dev/tty63
/dev/tty1 ? /dev/tty20 /dev/tty31 ?/dev/tty42 /dev/tty53 ?/dev/tty7
/dev/tty10 ?/dev/tty21 /dev/tty32 ?/dev/tty43 /dev/tty54 ?/dev/tty8
/dev/tty11 ?/dev/tty22 /dev/tty33 ?/dev/tty44 /dev/tty55 ?/dev/tty9
/dev/tty12 ?/dev/tty23 /dev/tty34 ?/dev/tty45 /dev/tty56 ?/dev/ttyGS0
/dev/tty13 ?/dev/tty24 /dev/tty35 ?/dev/tty46 /dev/tty57 ?/dev/ttyO0
/dev/tty14 ?/dev/tty25 /dev/tty36 ?/dev/tty47 /dev/tty58 ?/dev/ttyS0
/dev/tty15 ?/dev/tty26 /dev/tty37 ?/dev/tty48 /dev/tty59 ?/dev/ttyS1
/dev/tty16 ?/dev/tty27 /dev/tty38 ?/dev/tty49 /dev/tty6 ? /dev/ttyS2
/dev/tty17 ?/dev/tty28 /dev/tty39 ?/dev/tty5 /dev/tty60 ?/dev/ttyS3
/dev/tty18 ?/dev/tty29 /dev/tty4 ? /dev/tty50 /dev/tty61

Is there a configuration file to edit so that the UARTS are detected or setup on boot?

Jay?
KF7ITF
Re: HELP!!!!! ax25 setup issues

Jay Land
 

John,

I looked in the /dev directory and do not have a ttyO1. Below are the contents of the /dev directory.

root@beaglebone:/etc/ax25# ls /dev/tty*
/dev/tty ? ? ?/dev/tty19 /dev/tty3 ? ?/dev/tty40 /dev/tty51 ?/dev/tty62
/dev/tty0 ? ?/dev/tty2 ? ? ? /dev/tty30 ?/dev/tty41 /dev/tty52 ?/dev/tty63
/dev/tty1 ? ?/dev/tty20 /dev/tty31 ?/dev/tty42 /dev/tty53 ?/dev/tty7
/dev/tty10 ?/dev/tty21 /dev/tty32 ?/dev/tty43 /dev/tty54 ?/dev/tty8
/dev/tty11 ?/dev/tty22 /dev/tty33 ?/dev/tty44 /dev/tty55 ?/dev/tty9
/dev/tty12 ?/dev/tty23 /dev/tty34 ?/dev/tty45 /dev/tty56 ?/dev/ttyGS0
/dev/tty13 ?/dev/tty24 /dev/tty35 ?/dev/tty46 /dev/tty57 ?/dev/ttyO0
/dev/tty14 ?/dev/tty25 /dev/tty36 ?/dev/tty47 /dev/tty58 ?/dev/ttyS0
/dev/tty15 ?/dev/tty26 /dev/tty37 ?/dev/tty48 /dev/tty59 ?/dev/ttyS1
/dev/tty16 ?/dev/tty27 /dev/tty38 ?/dev/tty49 /dev/tty6 ? ?/dev/ttyS2
/dev/tty17 ?/dev/tty28 /dev/tty39 ?/dev/tty5 /dev/tty60 ?/dev/ttyS3
/dev/tty18 ?/dev/tty29 /dev/tty4 ? /dev/tty50 /dev/tty61



On Mon, Sep 1, 2014 at 5:59 AM, 'John Wiseman' john.wiseman@... [Raspberry_Pi_4-Ham_RADIO] <Raspberry_Pi_4-Ham_RADIO@...> wrote:

?

Jay,

???????????????????????????????????????????????????????????????????????????????????

Are you sure the port is /devtty/S0? -On mine it is /dev/ttyO1.

?

73, John G8BPQ

?

From: Raspberry_Pi_4-Ham_RADIO@... [mailto:Raspberry_Pi_4-Ham_RADIO@...]
Sent: 01 September 2014 04:14
To: Raspberry_Pi_4-Ham_RADIO@...
Subject: [Raspberry_Pi_4-Ham_RADIO] HELP!!!!! ax25 setup issues

?

?

Hi all, I just got my TNC-Black and am setting it up and can not get the ax25 working.When I run kissattach command i get this error "tty_speed: tcgetattr: Input/output error"

?

I have my TNC set for UART1 which should be /dev/ttyS0. The command I am using is:

?

root# /usr/local/sbin/kissattach /dev/ttyS0 0

?

Also I the "pitnc_setparams" doesn't work either.



Jay

KF7ITF

?
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

Hi all. My last attempt didn't seem to post so I'll try again.? I've been trying to get the sstv from www.instructables to install. I get as far as 
gcc -lgd -lmagic -o pisstv pisstv.c and it comes back

/usr/bin/ld: /tmp/ccHqMKef.o: undefined reference to symbol 'sin@@GLIBC_2.4'
//lib/arm-linux-gnueabihf/libm.so.6: error adding symbols: DSO missing from command line
collect2: ld returned 1 exit status

What am I missing?
Re: Has anyone used a Raspberry Pi to run Slow Scan Television

 

Hi everyone.? I've been trying to get pisstv installed on my Pi.? When I enter 
gcc -lgd -lmagic -o pisstv pisstv.c, it comes back
?
/usr/bin/ld: /tmp/cco9lrR5.o: undefined reference to symbol 'sin@@GLIBC_2.4'

//lib/arm-linux-gnueabihf/libm.so.6: error adding symbols: DSO missing from command line
?collect2: ld returned 1 exit status

I'm obviously missing something, but I have no idea what.


?
Re: VNC connection problem

 

Many thanks for the information Scott I will give it a try. It seems that I am going to be busy.


Thanks to all of you who responded with most helpful advice.


73 Stan GW3SRM
Re: HELP!!!!! ax25 setup issues

 

开云体育

Jay,

???????????????????????????????????????????????????????????????????????????????????

Are you sure the port is /devtty/S0? -On mine it is /dev/ttyO1.

?

73, John G8BPQ

?

From: Raspberry_Pi_4-Ham_RADIO@... [mailto:Raspberry_Pi_4-Ham_RADIO@...]
Sent: 01 September 2014 04:14
To: Raspberry_Pi_4-Ham_RADIO@...
Subject: [Raspberry_Pi_4-Ham_RADIO] HELP!!!!! ax25 setup issues

?

?

Hi all, I just got my TNC-Black and am setting it up and can not get the ax25 working.When I run kissattach command i get this error "tty_speed: tcgetattr: Input/output error"

?

I have my TNC set for UART1 which should be /dev/ttyS0. The command I am using is:

?

root# /usr/local/sbin/kissattach /dev/ttyS0 0

?

Also I the "pitnc_setparams" doesn't work either.



Jay

KF7ITF

?
AX25 setup help needed for a BBB to support a TNC-Black

[email protected]
 

I was directed to post here for help. I cannot get the AX25 running on either of my BBB using a TNC-Black. I have been to a lot of sites and they just don't help. If some one has done it and can help please email me.


KF7ITF[at]arrl.net


Jay

KF7ITF
12541 - 12560 of 15921