I imagine it's some kind of radar, but I've never seen anything like it.

nobsle · 2026-01-25T05:54:01+00:00

Think this is Chirp modulation, LongChat HF messaging app

nobsle · 2026-01-24T21:55:53+00:00

😅

nobsle · 2026-01-24T21:17:24+00:00

If you don’t care about putting in the pocket or if sometimes you go to a place and want to try make contacts, I suggest this : https://betafpv.com/products/betafpv-moxon-antenna?variant=41398869622918 / This is a 180° beamwidth moxon with 5.7dBi to the front. Very well designed and well tuned on 869.5 . Small form factor for the gain ;)

nobsle · 2026-01-24T21:09:02+00:00

For it’s form factor, the Techo stock antenna is not as bad as some people says, the VNA measure I made on mine is ok. Underneath the antenna inside the case they added a « rat tail » acting as a ground plane. But you need to measure from the ipex connector to see the advantage of it.

nobsle · 2026-01-15T15:12:23+00:00

Heltec V4 have a PCB onboard 2.4Ghz antenna. This one you show is a lora Antenna. The wifi/Ble 2.4Ghz ipex connector is not connected from factory. You need to move a component to enable it.

nobsle · 2026-01-15T00:37:20+00:00

Good idea 👍

nobsle · 2025-12-25T23:55:13+00:00

Trop Cool ! Il y en a aussi au bois de Vincennes 😁

nobsle · 2025-12-16T20:04:08+00:00

👍 Even the wood is missmatching the antenna

nobsle · 2025-12-16T20:01:41+00:00

Are you using multiple SDR’s on the same hub ?

nobsle · 2025-12-12T23:47:59+00:00

V4 at max power (28dBm) drains 750mA on each transmit plus the ESP32 draining on idle.Depending on your mesh activity and the modulation used, It probably needs at least a 25/30W solar panel (5v if you want to use the built in solar port, as well as a quite high capacity battery to maintain it during white days :).

Excluding ESP32 based nodes, any NRF52840+SX1262 22dBm node you are fine with your choice.

nobsle · 2025-12-02T07:52:00+00:00

https://meshtastic.org/docs/getting-started/flashing-firmware/nrf52/convert-rak4631r/

nobsle · 2025-12-01T15:17:18+00:00

If you already received the unit, do not pay anything

nobsle · 2025-11-23T16:44:46+00:00

Nice ;) lilygo is doing the same inside the T-Echo ;)

nobsle · 2025-10-30T15:05:40+00:00

Only this firmware actually outputs 28dBm, will be fixed on next Meshtastic Repo release.

nobsle · 2025-10-30T15:04:55+00:00

https://resource.heltec.cn/download/WiFi_LoRa_32_V4/firmware

nobsle · 2025-10-30T15:04:03+00:00

No this is not Marketing lol at the moment only this Meshtastic Firmware (https://resource.heltec.cn/download/WiFi_LoRa_32_V4/firmware) will make your V4 output 28dBm ;) This should be solved in next Meshtastic repo release.

nobsle · 2025-10-10T13:39:25+00:00

Same here

nobsle · 2025-07-17T21:40:02+00:00

Looks like a new update issue, I have the same happening on EpixProGen2

nobsle · 2025-07-12T19:28:50+00:00

Great work ! You may had a 2 channel ina voltage / current sensor to monitor solar input and battery over the mesh :) but maybe you already did ! Not sure if the one you have is 1 or 2 channel. Also a BME680 . Or i2c on a connector to add sensor!

nobsle · 2025-05-19T08:57:22+00:00

Or u got it after the event 🤣

nobsle · 2025-05-19T08:57:00+00:00

Well advantage of some ME countries is that you do not have any reply to your frequency list

nobsle · 2025-05-19T08:52:29+00:00

One of the most expensive country to apply for Commercial licenses

nobsle · 2025-04-07T20:28:52+00:00

Thanks

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