News items for tag shiny - Koos van den Hout

2023-01-27 I bought a new radio transciever: the Yaesu FT-991A
Eight and a half years and over 14000 contacts after I bought a Yaesu FT-857D I thought it was time to upgrade. The basic requirements haven't changed a lot: HF, 2 meter, 70 centimeter bands, SSB, Morse, FM, support for computer control. What I wanted to improve on is noise filtering, handling of strong adjacent signals and a waterfall display.

So the choice is the Yaesu FT-991A although I also looked at HF-only radios from Yaesu but decided on this one in the end. This will be the base station radio for a while and I will only use the FT-857D for operating away from home.

The basic installation went fine and I think this is a great amateur radio and good value for money. It is an advanced technological device so I had to dig into manuals and on-line documentation several times to get things set up the way I wanted it.

The good innovation is that the Yaesu FT-991A has an USB port on the back. This USB connection gives the computer 2 serial ports and audio over USB. The first serial port is for Computer Aided Tuning (CAT) control which can control the radio from the computer.

I directly wanted to set up an udev rule to map this to a fixed symlink so I can start rigtctld easily. The new rule:
SUBSYSTEM=="tty", ENV{ID_MODEL}=="CP2105_Dual_USB_to_UART_Bridge_Controller", \
        ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea70", \
        ENV{ID_USB_INTERFACE_NUM}=="00", \
The ENV{ID_USB_INTERFACE_NUM}=="00", filter only makes this rule activate on the first of the serial ports offered by the CP2105 chip.

My current experience is that the noise filtering is indeed better which helps a lot in the noisy RF environment at home.

Tags: , , ,
2022-10-31 Trying mastodon for amateur radio
All the news about twitter makes me wonder if I want to stay there in the long run.

But changing a social network is always a negative experience, you lose contacts. I still remember some several people who I haven't heard much from since google+ and wonder how they are doing!

For amateur radio I'm having a look at mastodon as

One conclusion is that my own site is more permanent than any social media. My own website survived the rise and fall of google+ while importing my posts so those are still available here. But interaction on my own site is complex and needs constant maintenance to avoid spam.

Tags: , , ,
2022-09-01 Finding interesting requests for timepro.cgi in the logs
There are always attacks in the logs, but this one caught my eye because someone mentioned it, I saw it in logs and searching for a simple explanation for what I saw gave no answers.

Those are the interesting ones. So here is the logline split into multiple parts in an attempt to make it more readable:
"GET /cgi-bin/timepro.cgi?tmenu=netconf&smenu=wansetup&act=save&
sdns1=&sdns2=&sdns3=&sdns4=&static_mtu=150 HTTP/1.1"
Searching for timepro.cgi finds a2004ns-mod/timepro.cgi at master · hklcf/a2004ns-mod · GitHub which seems to be compiled code: ELF 32-bit MSB executable, MIPS, MIPS-I version 1 (SYSV), dynamically linked, interpreter /lib/, stripped.

Based on Honware: A virtual honeypot framework for capturing CPE and IoT zero days my best guess is that requests to timepro.cgi attempt to reconfigure a home router. And my next guess is that the attempt is to set the DNS resolvers to and Further searching finds another attempt from the same source IPv4 address which also looks a lot like an attempt to reconfigure DNS settings:
"GET /dnscfg.cgi?dnsPrimary= HTTP/1.1"
The theory that this is an attempt to redirect DNS traffic is somewhat confirmed by the fact that indeed runs an open resolver which will give me answers. For the few things I have tried those are valid answers (no clear attempts to redirect traffic to other places). I get no answers from at the moment.

Update: Searching for the string 128.0.104 finds more:
"POST /dnscfg.cgi?dnsPrimary= HTTP/1.1"
"POST /Forms/dns_1?Enable_DNSFollowing=1&dnsPrimary= HTTP/1.1"
Based on the names of the parameters I guess more of the same: attempts to redirect DNS traffic.

Tags: , ,
2021-06-22 Ik was op zoek naar een creative commons afbeelding van een marifoon
Voor mijn stukje over het luisteren naar marifoon kanalen zocht ik eigenlijk naar een afbeelding van een marifoon op een schip.

En het aanbod viel zwaar tegen. Via de de wikipedia pagina over het ontwerp Marifoon kom ik wel een creative commons afbeeldingen tegen van een oude marifoon, maar niets actueels. Kwa beeld zocht ik iets als een moderne marifoon zoals te koop via Inbouwmarifoons - Maritiem - en dan ingebouwd op een schip, want dat is mijn persoonlijke beeld. Blijkbaar heeft nog niemand die foto gemaakt en onder creative commons beschikbaar gesteld. Termen 'marifoon', 'marine radio' en 'ship radio' in combinatie met de juiste licentie leveren niet het beeld op wat ik heb.

Als ik de vraag om een open licentie er af laat kom ik best voorbeelden tegen zoals in het artikel Marifoon aan boord - Myon zeiljacht verhuur maar die zijn niet expliciet vrij te gebruiken.

Tags: , ,
2021-06-20 Ik luister ook eens wat marifoon kanalen
Gisteren op een zeilboot geweest en vanuit mijn hobby als radioamateur was ik natuurlijk ook benieuwd naar de radio aan boord. Daar werd niet veel mee gedaan omdat de eigenaar van de zeilboot nog geen marifoon bedienings certificaat heeft. Verder leuk een stukje mee gevaren. Ik heb geen idee van zeilen maar met iemand er bij met kennis en inzicht is het leuk om mee te maken.

Dat was natuurlijk wel aanleiding om me eens te verdiepen in de ontvangst van het marifoon verkeer. Hier in Utrecht is er niet zoveel te beleven maar er zijn een paar bruggen en sluizen met misschien wat verkeer wat ik zou kunnen ontvangen. Dus ik heb de programmeerkabel voor de QYT KT-8900 opgedoken en na wat zoeken deed deze het weer. Marifoonkanalen en gebruik gevonden op Marifoon kanalen en marifoon frequenties en de frequenties via Overzicht VHF marifoonkanalen - frequentieland en daarnaast nog Marifoonkanalen Nederland - Binnenvaart kennis.

Uiteindelijk een set kanalen gevonden die kans gaven op verkeer en deze in de radio geprogrammeerd. Puur voor ontvangst, niet om daar ooit op te willen zenden!

De kanalen en frequenties waarvan ik denk dat ze interresant zijn:
KanaalFrequentie schipFrequentie walGebruik
1156.050 MHz160.650 MHzCentrale meldpost IJsselmeer
6156.300 MHzSimplexIntership
10156.500 MHzSimplexIntership
13156.650 MHzSimplexIntership
15156.750 MHzSimplexIntraship
17156.850 MHzSimplexIntraship
16156.800 MHzSimplexNoodoproepen
18156.900 MHz161.500 MHzSluizen en bruggen, Merwedekanaal
20157.000 MHz161.600 MHzSluizen en bruggen
22157.100 MHz161.700 MHzSluizen en bruggen
61156.075 MHz160.675 MHzVerkeersbegeleiding blokkanaal Maarssen Amsterdam-Rijn kanaal
72156.625 MHzSimplexSociaal
77156.875 MHzSimplexSociaal
84157.225 MHz161.825 MHzSluizen en bruggen
85157.275 MHz161.875 MHzSluizen en bruggen
Een deel van de kanalen zoals die voor sluizen en bruggen hebben een aparte schip en wal frequentie. Dat zorgt natuurlijk dat de brugwachter of sluiswachter altijd het woord kan nemen en een mededeling kan doen zonder dat er een radio vanaf een schip doorheen kan storen.

Met het lezen over marifoon gebruik en kanalen is het wel duidelijk dat het allemaal zeer goed gestructureerd is en gebruikers dienen te weten welk kanaal voor welk gebruik is en hoe de procedures zijn. Sociaal gebruik was eerst helemaal niet de bedoeling, bij uitbreiding van de kanalen is daar iets ruimte voor gekomen. De frequenties laten zien dat de uitbreiding van de beschikbare kanalen is gekomen door het overschakelen op een ander kanaalraster.

Dus nu staat de radio constant deze frequenties en daarnaast diverse amateur frequenties en pmr frequenties te scannen. Voorlopig is de conclusie dat het vrij rustig is op de marifoon kanalen en dat als ik wat hoor de communicatie volgens nette regels gaat en vrij kort is, er is duidelijke etherdiscipline. Daarnaast hoor ik op PMR kanaal 7 soms een babyfoon en soms gesprekken die me het idee geven dat een restaurant dat kanaal gebruikt voor communicatie. Ik denk dat ze elkaar niet horen, ik heb een veel hogere antenne.

Tags: , ,
2021-06-07 Wireless enviromental monitoring with zigbee
Since January 2008 I measure temperatures and other environmental data in and around the house with 1-wire sensors and adaptors. These work fine but need wires between the sensors and that isn't ideal for quick spot measurements.

So I looked into other options recently, and found affordable zigbee temperature/air pressure/humidity sensors. And an USB zigbee interface which works with linux and with a lot of the available application software. Because the next problem is going sensor - zigbee network - zigbee usb interface - some magic - database of measurements.

Because I see myself wanting long series of measurements from a number of places in the house and testing without breaking those series I ordered two USB zigbee interfaces and eight environmental sensors. I guess I want production and development enviromental monitoring.

The zigbee stick is not the cheapest solution but it is documented to work with zigbee2mqtt and buying one supports work on that software.

Tags: , ,
2021-03-27 I bought a secondhand morse paddle and made a video about it
For a while I had a notification set for someone selling a morse paddle. Finally one came along at a reasonable price so I bought it.

And.. I mentioned this detail to some people at work. Who had an idea of what a morse key is, but didn't know about morse paddles. So with my big mouth I said "I'll make a video about it". This was triggered by the fact that I recently learned about OpenShot non-linear video editor which is available for Linux too.

So I created a video. And found out making a video of 30 seconds is a lot more work than 30 seconds. I watched some tutorial videos about OpenShot first and thought about what I wanted to show. I haven't added spoken comments because I didn't feel like doing those too.

The video isn't great, I can see several beginner mistakes. But I get the point across of what a paddle does. There is a continuity problem because I used sunlight. Which isn't very constant. And I made several clips because I didn't think I would get everything I wanted to show right. But now there are changes in light and a bit in camera angle, even with using a tripod.

And our neighbours were busy hammering indoors, so that can be heard too.

Tags: , , , ,
2021-02-15 Snow over the Netherlands satellite image
Satellite image of the Netherlands 2021-02-13 with snow cover. I acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Observing System Data and Information System (EOSDIS).
Satellite image of the Netherlands 2021-02-13 with snow cover.
I acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Observing System Data and Information System (EOSDIS).
In the weekend of 6 and 7 February 2021 the Netherlands got covered in snow and temperatures dropped to -10 degrees Celcius. In the week after that weekend temperatures stayed low and clear skies made for nice weather for outdoor skating and other wintersports. I was reminded of being on wintersport holiday.

I just had to look up the available images from the NASA Global Imagery Browse Services (GIBS) and found a great image from 13 February 2021. Click for more pixels!

Tags: , , ,
2021-01-28 Found on YouTube: Cruising The Cut
A while ago the YouTube suggestion algorithm came up with a video about a TV journalist / cameraperson who decided to live and work full-time on a narrowboat in the canals of England. The suggested video: TV Journalist Quits His Job to Live on a Tiny House Boat & Cruise UK Canals Full-Time.

I guess the suggestion was in relation to some videos I watched about people with expedition vehicles.

After that video I checked out the YouTube channel mentioned in the video: Cruising the Cut and I got addicted. By now I have watched more than two-thirds of the videos in the channel. David Johns describes the first steps in buying the boat, getting the boat ready to live on and the journeys along the canal network in England. The exact measures of the narrowboat are to make it fit in the canals that were dug in England as the first way to move goods when the industrial revolution allowed centralized production. The boats are 2.08 meter (6 feet 10 inches) wide to fit in all the canals and locks. The canals were dug by hand, so they are no wider and deeper than needed to transport goods.

I did ask David about the term 'the Cut' because I couldn't find a good explanation for it. It is the term for the canal, because the canals were cut out of the land by hand.

For my Dutch readers who wonder about canals in a not completely flat landscape: canals in England have lots of locks, tunnels and aqueducts to deal with those.

Somehow this idea of a moveable home is nice to me. At the same time I am not a person for living on the water, and with all the plans for long cycling tours I still want to return to a nice home with all the comforts.

One note: I do notice that David Johns comes from a background in television. Great quality video. And yes, I am fully aware that takes a lot of editing.

Tags: , ,
2020-08-23 Getting work done on the Camp Wireless rewrite
In the last few weeks I had actual time to work on the planned rewrite of Camp Wireless in perl.

I rewrote it in perl and redid a small part of the CSS to use the CSS grid model to optimize Camp Wireless based on screen size. In the coming days I will create an 'acceptance' version of the site using the production version of the database, to iron out the last errors.

I still need to finish the correct 404 generation from within mod_perl scripts, advertising and some specific cases. And it's a good idea to run a website security scan on my work.

The look and feel hasn't changed a lot. I decided to present the same information in the same order and maintain most of the screenlayout.

Tags: , , ,

IPv6 check

Running test...
, reachable as PGP encrypted e-mail preferred. PGP key 5BA9 368B E6F3 34E4 local copy PGP key 5BA9 368B E6F3 34E4 via keyservers

Meningen zijn die van mezelf, wat ik schrijf is beschermd door auteursrecht. Sommige publicaties bevatten een expliciete vermelding dat ze ongevraagd gedeeld mogen worden.
My opinions are my own, what I write is protected by copyrights. Some publications contain an explicit license statement which allows sharing without asking permission.
Other webprojects: Camp Wireless, wireless Internet access at campsites, The Virtual Bookcase, book reviews
This page generated by $Id: newstag.cgi,v 1.40 2022/12/12 15:34:31 koos Exp $ in 0.043360 seconds.