I have started building myself an Oscar 100 transceiver with a 65cm dish by Trax.
More info will follow soon.
QO-100 / Qatar-OSCAR 100 project
Categorie: Geen categorie
Web cluster PA0ESH-3 on line
Since Oktober the 6th 2024 I have the dxspider data also visually available on the web. Checkout https://dxcluster.pa0esh.nl and let me know if you like it.
It is SSL protected so you should have no complanint from your webbrowser.
The telnet connection is as before : dxcluster.pa0esh.nl port 7300
Happy dx-ing !
Hamradio cluster moved
The hamradiocluster PA0ESH-3 has been moved to another domain. You can now reach it at dxcluster.pa0esh.nl. Soon a grafical webinterface will be available as wel.
Still using port 7300
Please update your cluster software such as log4om, N1NN etc.
FT911A Transmit icon hangs
I solved the issue of the transmit icon staying in blinking mode and not due to hanging PTT or others </p
Procedure:
- Switch OFF your FT991A.
- Power and USB have to be physically disconnected. Pull the connectors.
- Wait for 30 seconds
- Re connect the PWR and USB and switch the FT991A to ON
That’s it !
RS232-TTL
Once upon a time somewhere in 2015 i bought a couple of these little converters RS232 tot TTL.
Here is how they work
From the RS232 Port – RX, TX and GND. Thats the -> -<and the – signs. Easy enough
– GND
-> RX
<- TX
On the TTL (Arduino) side – DO NOT USE 5V use 3.3V as this toasts the device and heats up and like tops itself. It certainly got very toasty when I put 5V across it. This could be because I messed up somewhere in the wiring but it certainly works well for me. I can also use the SoftwareSerial library as well so I don’t need to use TX/RX on the TTL Serial pins 0 and 1
So TTL is
– GND
-> – PIN X
<- PIN Y
For my device I used PIN 0 and PIN 1 – TX/RX – but I guess you can use other pins.
Hope this helps – it does work!
Gadgets schematics
Often i buy myself some small gadgets, only to forget about them .This plcae is my storage of these items and their technical descriptions etc
3Watt audio amplifier
PAM8403A
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Stepmotor driver : EASYDRIVER
http://www.schmalzhaus.com/EasyDriver/index.html
AETHER DIGITAL POTMETER
Supply voltage: 3V-5V
Chip: X9C103S
PCB board size: 2.7 * 1.3CM
10K span potentiometer.
Colour is sent by Random
Potentiometer center tap between 0-10k slide in total 100 (potentiometer wiper typical impedance 40 ohms)
VL and VH digital potentiometer sliding rheostat port corresponding to the low-end and high-end, allowing the input voltage range -5V to + 5V.
Package Included:
X9C103S Digital Potentiometer Module
433MHz RF receiver module specificaties:
– Product Model MX-05V
– Werkt op: 5V
– Ontvangstfrequency: 433.92MHZ
– Ontvanger gevoeligheid:-105DB
– Maten: 30 * 14 * 7mm
433MHz RF transmitter module specificaties:
– Product Model: MX-FS-03V
– Werkt op: 3.5-5.5V
– Werkmodus: AM transfer rate: 4KB / S transmit power: 10mW
– Zendfrequency: 433M
RADAR DETECTOR
AT-09 – Bluetooth
Arduino – AT 09 BLE module
https://www.studiopieters.nl/arduino-at-09-ble-module/
Opentracker_OT+SMT
https://www.argentdata.com/products/otplus.html
Openwrt/Lede & APRX
Just before years end i have compiled the latest OpenWRT LEDE & APRX, and added OpenVPN and OpenSSL to it. The files can be found in the download section. If you have another router, then drop me a line, or call me at DMR at 204 / 2044 or 2045.
Openwrt/LEDE and APRX – New !!!
Openwrt and LEDE have combined forces, and the new firmware including the latest aprx 2.9.0 package is available for download.
Older versions are no longer maintained.
See the respective page on this site.
Latest Openwrt for ASUS WL500G
I have just posted new images for running aprx with Openwrt on a Asus WL500gP. If you need another image for another outer, please let me know.
Erik, pa0esh
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Latest Openwrt – APRX images – 19-05-2017
I have added new firmware packages and the latest APRX package in the download section. In case you need firmware for another router, please let me know and I see what I can do.
To install just the package, do as follows….
ssh into your machine (normally something like sss root@(ip-of-machine)
Then change into the tmp directory and execute:
/etc/init.d/aprx stop
wget https://www.pa0esh.com/svn/aprx_2.9.0-Stable_brcm47xx.ipk
chmod 755 aprx_2.9.0-Stable_brcm47xx.ipk
opkg install aprx_2.9.0-Stable_brcm47xx.ipk
In case the installer tells you that you have already the latest package, change the command into:
opkg install aprx_2.9.0-Stable_brcm47xx.ipk –force-download
Erik, pa0esh
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