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F5NPV – V85NPV
Amateur Radio – Ham Radio – Radioamateur
Menu + × expanded collapsed
* HOME
* Blog
* The Shack
* W8JK Antenna
* W8JK/MOXON
* ENDFED/EFHW Antenna & Choke
* EndFed Random Wire ‘’ EFRW’’ Antenna
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* 1KW ANTENNA TUNER (WIFI)
* PA0FRI S-Match ATU
* UBITX V4
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* SDR TRX & Remote Control
* SDR TRX Remote CW
* TRX & Shack Midi Controller
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* uSDX SDR 1.02 Alternative Design
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SDR TRX REMOTE CW
CW REMOTE CONTROL SETUP
The good thing with SDR TRX is remote control capabilities:
* My SDR is driven by Quisk with a Raspberry PI 3B+ with Rasbian Buster
* For DATA mode i am using VNC
* For Voice i am using Mumble and VNC
* For CW i am using a mod from IW7DMH and for details please check the
following
website: https://iw7dmh.jimdofree.com/utilities-for-remote-operations/sw-keyer-for-remote-operations/
I can drive my Rig from the garden but even from internet or abroad. With all
the software open the Raspberry reach only 60% of CPU (Quisk + Mumble + Bash
sript + CQRLOG).
Regarding the Bash script , find hereafter the one for Rasbian Buster.
You need to install NMAP and GPIO libraries
INSTALL NMAP
In order to have NMAP capabilities for Network scanning (ncat) you need to
install it
sudo apt-get install nmap
To verify the installation :
# nmap -V
Output example :
Nmap version 7.60 ( https://nmap.org )
Platform: x86_64-pc-linux-gnu
Compiled with: liblua-5.3.3 openssl-1.0.2g nmap-libssh2-1.8.0 libz-1.2.8 libpcre-8.39 libpcap-1.8.1 nmap-libdnet-1.12 ipv6
Compiled without:
Available nsock engines: epoll poll select
INSTALL NCAT
Nmap should install NCAT since most of the time they are in the same package .
Therefore it can happen you will need to install it manually
First verify if NCAT is installed :
# ncat -v
If you have no response it means you will need to install it manually .
Download the NCAT package from here : download NCAT package from
: http://ftp.us.debian.org/debian/pool/main/n/nmap/ncat_7.70+dfsg1-6+deb10u2_armhf.deb
#sudo dpkg -i ncat_7.70+dfsg1-6+deb10u2_armhf.deb
Then
# ncat -v
at this stage you should have the ncat 7.70 release installed in your BUSTER
VERIFY YOUR GPIO
To verify if your GPIO is installed :
In a terminal just type : gpio -v
you should have some result likely :
pi@raspberrypi:~ $ gpio -v
gpio version: 2.50
You can verify also typing :
pi@raspberrypi:~ $ gpio readall
Oops – unable to determine board type.
—> This means no gpio libraries are installed
INSTALL GPIO ON RASPBIAN BUSTER
You will need to install WIRINGPI
First you need to download:
wget https://project-downloads.drogon.net/wiringpi-latest.deb
--2019-08-29 10:30:42-- https://project-downloads.drogon.net/wiringpi-latest.deb
Résolution de project-downloads.drogon.net (project-downloads.drogon.net)… 188.246.205.22, 2a03:9800:10:7b::2
Connexion à project-downloads.drogon.net (project-downloads.drogon.net)|188.246.205.22|:443… connecté.
requête HTTP transmise, en attente de la réponse… 200 OK
Taille : 52260 (51K) [application/x-debian-package]
Sauvegarde en : « wiringpi-latest.deb »
wiringpi-latest.deb 100%[===================>] 51,04K 204KB/s ds 0,3s
2019-08-29 10:30:43 (204 KB/s) — « wiringpi-latest.deb » sauvegardé [52260/52260]
--------------------------------------------------------------------------------
Then to install :
sudo dpkg -i wiringpi-latest.deb
(Lecture de la base de données... 158515 fichiers et répertoires déjà installés.)
Préparation du dépaquetage de wiringpi-latest.deb ...
Dépaquetage de wiringpi (2.52) sur (2.50) ...
Paramétrage de wiringpi (2.52) ...
Traitement des actions différées (« triggers ») pour man-db (2.8.5-2) ...
Then to verify
pi@raspberrypi:/tmp $ gpio -v
gpio version: 2.52
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty
Raspberry Pi Details:
Type: Pi 4B, Revision: 01, Memory: 2048MB, Maker: Sony
* Device tree is enabled.
*--> Raspberry Pi 4 Model B Rev 1.1
* This Raspberry Pi supports user-level GPIO access.
pi@raspberrypi:/tmp $
When you have installed the GPIO LIBRARIES you can verify it and type : gpio
readall
you should have a result likely :
TEST IT
To test the GPIO and your Hermes lite , you can use the following script
#! /bin/bash
gpio mode 27 out
while true; do
gpio write 27 1
sleep 1
gpio write 27 0
sleep 1
done
Your Hermes Lite should transmit a brief CW carrier
THE SCRIPT
The following Shell script will need to be started on your RPI in order to
initiate, scan and open the link for your Windows remote computer:
#!/bin/bash
sudo echo "27" > /sys/class/gpio/export
sleep 1
sudo echo "out" > /sys/class/gpio/gpio27/direction
sleep 1
sudo echo "1" > /sys/class/gpio/gpio27/value
sleep 1
PORT=11005
echo "========================================================="
echo "= Remote CW by IW7DMH mod by F5NPV for RASPBIAN BUSTER ="
echo "= Start listening on port $PORT ...ctrl+c to exit" =
echo "========================================================="
while read line
do
#echo $line
#echo $line | od -An -t uC
cmd=${line:0:1}
#echo $cmd
#echo $cmd | od -An -t uC
case "$cmd" in
0) #echo "000"
echo "1" > /sys/class/gpio/gpio27/value
cat /sys/class/gpio/gpio27/value
;;
1) #echo "111"
echo "0" > /sys/class/gpio/gpio27/value
cat /sys/class/gpio/gpio27/value
;;
3) echo "Going to stop listener ..."
break
;;
*) #echo "unknown cmd"
;;
esac
done < <((echo "Welcome. Please give me one of the following commands: 0 | 1 | 3") | ncat -k -l $PORT)
echo "... listener stopped."
GPIO.cleanup()
exit 0
--------------------------------------------------------------------------------
if you intend to reverse the GPIO wiring you will need to modify the code :
The following underline code should be modified
0) #echo "000"
echo "1" > /sys/class/gpio/gpio27/value
cat /sys/class/gpio/gpio27/value
;;
1) #echo "111"
echo "0" > /sys/class/gpio/gpio27/value
cat /sys/class/gpio/gpio27/value
;;
With
0) #echo "000"
echo "0" > /sys/class/gpio/gpio27/value
cat /sys/class/gpio/gpio27/value
;;
1) #echo "111"
echo "1" > /sys/class/gpio/gpio27/value
cat /sys/class/gpio/gpio27/value
;;
Some pics for the CW interface and overview of the setup for RIG remote control
For the Hermes Lite , you will need to connect the CN4 to the GPIO 27 on the
Raspberry + ground
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19 THOUGHTS ON “SDR TRX REMOTE CW”
1. Chris says:
May 4, 2021 at 7:28 am
Bonjour Rene, I notice in the top image it looks like quisk is showing cw
skimmer output. Please tell me how this is done.
Regards and thanks
Chris
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Reply
1. F5NPV says:
May 4, 2021 at 11:44 am
Hello Chris ,
This is not CW skimmer , the callsign are from DXCLUSTER server you can
activate in QUISK configuration . You need to setup the dxcluster Address
and port + the number of lines you want to be display
73s Didier
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Reply
2. Charlie Rubenstein says:
October 23, 2021 at 5:17 am
Hello Rene: You mention for the Hermes Lite “you will need to connect the
CN4 to the GPIO 27 on the Raspberry + ground”. I have a Hermes Lite 2. What
is CN4? I planned to connect ground and GPIO 27 to a 3.5mm plug into the
front of the HL2.
Thanks,
73 de Charlie KB8CR
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Reply
1. F5NPV says:
October 23, 2021 at 9:47 am
Hello Charlie , CN4 is the PTT Key plug from the front panel
73s Didier
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Reply
1. Charlie Rubenstein says:
October 23, 2021 at 9:14 pm
Thank you Didier. I finally looked at the schematic, and saw that CN4
*is* the Key/PTT plug on the front. I plan to build this interface for
my HL2. I have a spare Raspberry Pi Zero that I plan to use. I am very
impressed with the Hermes Lite. It rivals my Flex6400 and Flex3000 for
RX performance. I also have a Pi4 with touchscreen that I am trying
PiHPSDR on, and it is working well with the Hermes.
I noticed on your website a picture where there is a box labeled “wifi
PWR/SWR”. I am very interested in finding plans for a Power/SWR meter
that can be read through a serial port, or via wifi. This is because
all of my equipment is remote to my operating position. Also, if it
can be read by a serial port, I can integrate it with NodeRed to be
viewed on a browser.
Best 73 mon ami,
de Charlie KB8CR
LikeLike
2. F5NPV says:
October 23, 2021 at 11:25 pm
Hello,
For the REMOTE WIFI SWR/PWR i will recommand :
https://github.com/ra0sms/SWR_PWR_meter
The best in town ; Mine is working ok but the one for RA0SMS is better
i am using a lot my Hermes lite remotely from my sofa and i will
recommand SDR CONSOLE . This Software is providing a better latency
and buffer management against the lag from the wifi network.
LikeLike
3. Charlie Rubenstein says:
October 23, 2021 at 10:00 pm
Hello Didier:
Well, I made a script from your site for Buster, and when I ran it, I
got the following errors:
pi@SDRPlay:~ $ ./remotecw.sh
echo: write error: Invalid argument
./remotecw.sh: line 5: /sys/class/gpio/gpio27/direction: No such file
or directory
./remotecw.sh: line 7: /sys/class/gpio/gpio27/value: No such file or
directory
“=========================================================”
“= Remote CW by IW7DMH mod by F5NPV for RASPBIAN BUSTER =”
“= Start listening on port 11005 …ctrl+c to exit” =
“=========================================================”
./remotecw.sh: line 46: ncat: command not found
./remotecw.sh: line 46: 1: command not found
./remotecw.sh: line 46: 3”: command not found
“… listener stopped.”
I don’t know what I did wrong. I have nmap installed.
73 de Charlie KB8CR
LikeLike
4. F5NPV says:
October 23, 2021 at 11:23 pm
Hello Charlie, according the error messages i think you forgot to
install the GPIO libraries.
In a terminal just type : gpio -v
you should have some result likely :
pi@raspberrypi:~ $ gpio -v
gpio version: 2.50
You can verify also typing :
pi@raspberrypi:~ $ gpio readall
Oops – unable to determine board type.
—> This means no gpio libraries are installed
When you have installed the GPIO LIBRARIES you can verify it and type
: gpio readall
73s Didier
LikeLike
5. F5NPV says:
October 24, 2021 at 12:23 am
Hello Charlie,
I have updated the webpage and add all information for how to install
the GPIO and NMAP in RASPBIAN and how to test it . i think it more
clear now since i have realized it is a bit fuzzy regarding the
initial and previous information provided.
73s Didier
LikeLike
3. Charlie Rubenstein says:
October 24, 2021 at 3:17 am
I typed in gpio -v, and got this response:
pi@SDRPlay:~ $ gpio -v
gpio version: 2.52
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty
Raspberry Pi Details:
Type: Pi 4B, Revision: 01, Memory: 4096MB, Maker: Sony
* Device tree is enabled.
*–> Raspberry Pi 4 Model B Rev 1.1
* This Raspberry Pi supports user-level GPIO access.
I tried the “gpio readall” and it gave me a whole list of each of the GPIO
pins and their status.
pi@SDRPlay:~ $ gpio readall
+—–+—–+———+——+—+—Pi 4B–+—+——+———+—–+—–+
| BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM |
+—–+—–+———+——+—+—-++—-+—+——+———+—–+—–+
| | | 3.3v | | | 1 || 2 | | | 5v | | |
| 2 | 8 | SDA.1 | IN | 1 | 3 || 4 | | | 5v | | |
| 3 | 9 | SCL.1 | IN | 1 | 5 || 6 | | | 0v | | |
| 4 | 7 | GPIO. 7 | IN | 1 | 7 || 8 | 1 | IN | TxD | 15 | 14 |
| | | 0v | | | 9 || 10 | 1 | IN | RxD | 16 | 15 |
| 17 | 0 | GPIO. 0 | IN | 1 | 11 || 12 | 1 | IN | GPIO. 1 | 1 | 18 |
| 27 | 2 | GPIO. 2 | IN | 1 | 13 || 14 | | | 0v | | |
| 22 | 3 | GPIO. 3 | IN | 1 | 15 || 16 | 1 | IN | GPIO. 4 | 4 | 23 |
| | | 3.3v | | | 17 || 18 | 1 | IN | GPIO. 5 | 5 | 24 |
| 10 | 12 | MOSI | IN | 1 | 19 || 20 | | | 0v | | |
| 9 | 13 | MISO | IN | 1 | 21 || 22 | 1 | IN | GPIO. 6 | 6 | 25 |
| 11 | 14 | SCLK | IN | 1 | 23 || 24 | 1 | IN | CE0 | 10 | 8 |
| | | 0v | | | 25 || 26 | 1 | IN | CE1 | 11 | 7 |
| 0 | 30 | SDA.0 | IN | 1 | 27 || 28 | 1 | IN | SCL.0 | 31 | 1 |
| 5 | 21 | GPIO.21 | IN | 1 | 29 || 30 | | | 0v | | |
| 6 | 22 | GPIO.22 | IN | 1 | 31 || 32 | 1 | IN | GPIO.26 | 26 | 12 |
| 13 | 23 | GPIO.23 | IN | 1 | 33 || 34 | | | 0v | | |
| 19 | 24 | GPIO.24 | IN | 1 | 35 || 36 | 1 | IN | GPIO.27 | 27 | 16 |
| 26 | 25 | GPIO.25 | IN | 1 | 37 || 38 | 1 | IN | GPIO.28 | 28 | 20 |
| | | 0v | | | 39 || 40 | 1 | IN | GPIO.29 | 29 | 21 |
+—–+—–+———+——+—+—-++—-+—+——+———+—–+—–+
| BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM |
+—–+—–+———+——+—+—Pi 4B–+—+——+———+—–+—–
I think it is installed. But I still get the same errors.
Charlie KB8CR
LikeLike
Reply
4. Charlie Rubenstein says:
October 24, 2021 at 3:29 am
I see that I did not run dpkg on wiringpi. After doing so, I tried again,
and still get an error(s). But now it responds with:
pi@SDRPlay:~ $ ./remotecw
=========================================================
= Remote CW by IW7DMH mod by F5NPV for RASPBIAN BUSTER =
= Start listening on port 11005 …ctrl+c to exit =
=========================================================
./remotecw: line 36: ncat: command not found
… listener stopped.
./remotecw: line 39: syntax error near unexpected token `exit’
./remotecw: line 39: `exit 0′
Charlie KB8CR
LikeLike
Reply
1. F5NPV says:
October 24, 2021 at 7:21 am
Hello,
Ncat/Nmap are not installed properly
you can try to download NCAT package from :
http://ftp.us.debian.org/debian/pool/main/n/nmap/ncat_7.70+dfsg1-6+deb10u2_armhf.deb
And then use dpkg to install it. Then run ncat -v in a terminal to verify
it is installed
73s Didier
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Reply
5. Charlie Rubenstein says:
October 24, 2021 at 5:46 pm
Thanks for the extra info. Yes, it appears that nmap installed but not ncat.
I run the main script now, and get this:
pi@SDRPlay:~ $ ./remotecw
echo: write error: Device or resource busy
=========================================================
= Remote CW by IW7DMH mod by F5NPV for RASPBIAN BUSTER =
= Start listening on port 11005 …ctrl+c to exit =
=========================================================
It looks like it is running now. I will have to connect to the GPIO pin now
and test it.
73 de Charlie KB8CR
LikeLiked by 1 person
Reply
1. F5NPV says:
October 24, 2021 at 9:39 pm
All good Charlie, you will need to try now
LikeLike
Reply
6. Charlie says:
October 24, 2021 at 10:44 pm
Thank you so much, Didier ! I’m awaiting a 4N35 optoisolator to connect it,
but can see the 0’s and 1’s on the terminal when I key it, so I’m sure it’s
working.
73 de Charlie KB8CR
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Reply
7. Suitbert says:
April 19, 2022 at 11:23 am
Hello,
when downloading the the CW-keyer-program I do get a message, that there is
a “Trojan.Crypt.MSIL.Generic” included! Is there anything I can do? Is this
topic known already? Thanks for your help.
regards,
Suitbert, DF2PI
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1. F5NPV says:
April 19, 2022 at 1:35 pm
Hello,
i think you are referring to the program you found here
https://iw7dmh.jimdofree.com/utilities-for-remote-operations/sw-keyer-for-remote-operations/.
i downloaded the CW software years ago and maybe there is a new release
infected by a virus. Maybe you can contact iw7dmh and check with him.
73s Didier
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8. Dale says:
December 26, 2022 at 8:25 am
Didier, I found my remote RasPi CW bash script not working and eventually
found your page. I have been using the IW7DMH version originally on my
Apache SDR and now my Flex 6400. I think my Pi automatically upgraded to
Bullseye which caused the original script to stop working. Thanks for
providing a solution for my Flex and RasPi remote setup. Dale VK5DC
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1. F5NPV says:
December 26, 2022 at 1:00 pm
Hello Dale , since i am not using Raspbian bulleye i have no idea at this
stage . I will recommand to check if Ncap, Nmap and Gpio are properly
installed. You will need to check with Raspi-config if the Gpio are
activated. My understanding is bulleye is providing a lot of issues to
users and my recommandation is to stick on Buster for sure.
73s Didier
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