Wednesday, August 19, 2026

Updated my Meshcore devices

 Updates

 The plan was to finally update my repeater and repeater antenna. This went well. But did it really make a difference? I don't really know. I will have to measure some day.



Some photos from the repeater hardware setup here. See the difference between antennas. The old black antenna is visible left of the new one.



12V is coming out of the solarpanel and 5Ah battery setup originally ment for outdoor cameras. I convert the 12V to 5V with a very cheap car battery charger. A powerbank will not work here because the Seeed studio Xiao nRF52 lora device is using very little power and it would switch off.

The situation at this moment is:

At home: Repeater: PE4BAS Roodeschool - Roomserver: PE4BAS BBS/Room (Antenna height 10m)

At the job: Repeater HB Uithuizen - Roomserver: HB BBS/Room (Antenna height 5m)

The distance between the two repeaters is 6 km. 


According to the Meshcore app I have a huge range. But in reality I'm not so sure about that. I think the app does not take buildings around the antenna in account. I've also updated the repeater on my job and since I suddenly could not access the roomserver there. I updated that as well. Then I came home today and my roomserver at home was not working as well, so I updated it to the newest firmware. 

So far I am not able to directly connect to the roomserver at my job and from my job I am unable to connect the roomserver at home. I hoped the new antenna would be adding extra dB to reach it but it doesn't. The plan is to replace the antenna at the repeater at my job. I might have to look for a better place for the repeater there. My opinion is that this link between my home and job repeater should be reliable. At this moment it is only possible to connect under special circumstances. This happened only 2 times.

Roomserver bug?

I don't use the Meshcore system all days since the whole thing is not really reliable. Once and a while I update all my devices to see if there is any progress. But features stay almost the same and I don't see any use in the new features build in. For a long time I have an issue with the roomservers. The problem is that messages left on the server from my phone with the heltec V3 connected are perfectly readable by the same system. But if I connect to the same roomserver with my standalone TDeck I can't read the those messages. I can only write and read messages that are left from the TDeck. Like the roomserver has two rooms with a wall in between. This issue appears on both roomservers and probably it is a bug. However I cannot find anything about it on the internet yet? Am I the only one with this issue?

I think the roomserver is the most important station in this mesh network. I wrote about that a while ago. If you're in an emergency your first need is water, shelter and food. When you are busy looking for that you can't be on the phone all the time to read messages. Your phone and companion device might run out of power and you're disconnected from the network. In that case the roomserver on solarpower shines. It stores the messages from others till you're able to retrieve them.

However, I feel the roomserver firmware has issues. And I think the roomserver needs some more development. What and how? I don't know. I am no expert. But at least the "separate rooms" issue should be solved first.

Future plans

Not really. I will leave everything running. I hope to play it once and a while. You never know if you'll need this system. The only thing I will change is to power the roomserver at home with solarpower. Hopefully there will be some more repeaters in the neighbourhood. Experimenting with these LoRa devices is not that expensive and everyone with a little tech interest can do this. 

Sunday, August 16, 2026

International Lighthouse and lightship weekend.

 This weekend there was the lighthouse and lightship activation. Have been hunting for it before. This time I was looking for OZ1NBG since one of the participants Kees PA3KL was one of the activators there. And of course I love Denmark.


Pilsummer lighthouse By kaʁstn Disk/Cat - Own work, CC BY-SA 3.0 de, https://commons.wikimedia.org/w/index.php?curid=11868935

Tried many times to hear OZ1NBG on several bands, But only heard them briefly at 40m SSB. I managed to break the pile-up and made the contact. Would like to work them on CW as well but have not heard them since, A list of lighthouses and lightships I worked below.

Groote Kaap lighthouse

V55LH Diaz Point NA-0004

DA0DH Dahneshoeved DE-0003

PI4WAL Westkappele high NL-0017

OJ0YL Market Reef FI-0011

OR5R Westhinder 1 lightship BE-0004

TM22LH Bodic FR-0027

DL0EM Campen DE-0048

DA1HW Plau am see DE-0119

PD0FSB/P Den Oever NL-0041

PA0XAW Groote kaap NL-0037

Nordborg fyr (lighthouse)
OZ1NBG Nordborg OZ-0006

PA/DA1MT/LT Zoutelande NL-0046

DK0MAR Fehmarbelt lightship DE-0018

DK0OC Pilsum DE-0066

DL6WWM Heidkate DE-0038

GB2LG Mull of Galloway UK-0086



Fun contact was with the station at Pilsummer lighthouse. It is almost visible from here and signals were very strong. Some laughter when I told my location.

Thursday, August 13, 2026

Small experiment during eclipse

Photo made by my daughter


   We had an eclipse yesterday. The moon covered the sun for about 88% for a second. I've been watching but didn't find it spectacular at all. During the eclips I had my radio on 80m WSPR for a small experiment. It was interesting to see that during the eclipse the amount and distance of spots increased.




Some pictures made with the excellent WSPR watch app on my iphone.

Spot amount

Spot distance


You can easily see that around 18 UTC when the eclipse occured there is a peak. Then it goes down till after the sunset.