Doing some experiments with #meshcore on #433MHz A drive test shows very good results. Heltec v3 as companion and lily as repeater. At 2km distance still 10dB report. #hamradio #hamr #AmateurRadio #antenna #UHF #70cm #meshtastic #prepping

Can the Best Firmware even be better? Yes, it can! Now direct frequency entry has been added. Also, there is a 5 hour bandscope available. #hamradio #hamr #AmateurRadio #firmware #SI4732 #prepping #antenna #shortwave #FM

This morning I was in a 42m high #church in #Zeist and with this 20dBm #meshcore #transceiver I was able to reach the #repeater in #Almere easily. Distance is 40km. #hamradio #hamr #AmateurRadio #antenna #prepping #Emergency #tower #Meshtastic #mesh

This article is today on the SVR website, a Swedish TV station. Callsign is SM5DGX. svt.se/nyheter/lokalt…#hamradioi#hamrm#AmateurRadioi#EMEM#Swedene#antennan#moono#Moonbouncec#televisionon

It is so fascinating to see #RTTY decoding on this little SI4732 ESP32 #radio Station is Pinneberg DDH9 #weather on 10100 kHz. New #firmware also includes EiBi import via USB #hamradio #hamr #AmateurRadio #prepping #emergency #antenna #decoder #ship #receiver #shortwave #maritime

Doing some radio experiments with #meshcore on #868MHz Transceiver is Heltec v4 and #antenna a 8dBi vertical. Just placed this #repeater in the mast. #hamradio #hamr #AmateurRadio #prep #EmergencyResponse

QRV in cq ww cw contest. At Saturday under callcall pi4kar. #hamradio #hamr #AmateurRasio #amateur #radio #antenna #HF #contest #cw #morse #weekend #Saturday #Sunday

QRV in cqww cw contest. This morning from clubstation PI4KAR and now from home. #hamradio #hamr #AmateurRadio #contest #cw #morse #HF

Connected a BME280 sensor to the #Meshcore transceiver Heltec V4. SDA goes to GPIO 17 SCL goes to GPIO 18 Vcc = 3.3v Needs some calibration 😄 #hamradio #hamr #AmateurRadio #868MHz #prepping #Weather #temperature #pressure #humidity

Playing again with 868MHz #meshcore #mesh network. The #swr plot of the stock #antenna of my Heltec t114 and a few-minutes-build GP. #hamradio #hamr #AmateurRadio #measurement #DIY

Local #interference makes #reception below 5 MHz impossible. But this solution with a miniwhip #antenna and mixing this signal out of phase, the #QRM is almost gone. #hamradio #hamr #AmateurRadio #residential #solution #HF #shortwave

March 3th 1980, it was legal to use #CB #radio in the #Netherlands. In the first weeks, more than 300000 licences were sold but only 22 channels were available. The result: very crowded channels. Hear the mess of #channel 14. #hamradio #hamr #AmateurRadio #antenna #FM

#testing the #waterfall #display Can be activated at backlight 32 or 33 and use ETM mode. By turning and pressing the #VFO button you can enter the #station showed on the waterfall. #hamradio #hamr #AmateurRadio #radio #SI4732 #antenna #SDR #firmware

With this mod, you will have a #RTTY #decoder New is the terminal #display to have a larger read back window. #conditions are bad today but here is a small #demo with Pinneberg #weather #station #hamradio #hamr #AmateurRadio #antenna #tadio #SI4732 #WX #HF #shortwave

Two weeks ago, during #JOTA , someone was really impressed by the #SI4732 #mini #radio so I give my device to him. I bought a new one (V3) and the #hardware #mod for #RTTY decoder is already made. Playtime. #hamradio #hamr #AmateurRadio #YOUTH #scouting

QRV as PI6SBW/J at the #JOTA #JOTI 2025 Giving the #children a great #weekend #hamradio #hamr #AmateurRadio #scouting #Eindhoven #antenna #children #volunteer #volunteering #transceiver

During the UHF and up #contest we made some QSO on 122 GHz (wavelength is 2.5mm) between #Netherlands and #Germany RF power was only 0.5 mW (-3dBm) in FM F3E. #QTH is JO21XC Also #10GHz experiments #hamradio #hamr #AmateurRadio #radio #SHF #122GHz #antenna #Microwave #dish

Lowband #DX on topband #160m and #80m There was a time I really loved it. Hearing signals from westcoast W7/VE7 via #longpath Building #antenna like beverage Greyline around December 14th. Forever gone #hamradio #hamr #AmateurRadio #QRM #power #GRID #interference

The #Baofeng UV-5R mini is a nice looking handheld #radio #transceiver but the stock #antenna is worthless on #2m #145MHz This Retevis RHD-701 works much better. #hamradio #hamr #AmateurRadio #RadioAmateur #VNA #measurement #VHF #UHF #70cm

In between some appointments, I stopped near a small forest for a #test in a #QRM free area There only was some QRM from the #SI4732 itself but I could #decode #Pinneberg good on #longwave 147 kHz #hamradio #hamr #AmateurRadio #RTTY #Weather #SDR #radio #antenna #DDH47 #Germany

CQ WW RTTY contest but now on this #SI4732 #radio Receiving YT3X in 45 baud, on this small #receiver is almost a #JamesBond #movie #hamradio #hamr #AmateurRadio #RTTY #telex #Espionnage #contest #antenna #RadioAmateur

#sundayvibes Have some time to install the newest #firmware on the #SI4732 #radio This video shows #RTTY decoder of Pinneberg #weather station at a speed of 50 baud on the 30m band. #hamradio #hamr #AmateurRadio #RadioAmateur #Shortwave #antenna #weekend

I was in "Sint Oedenrode" for Market Garden #memorial show. Nice to see, hear and smell those over 80 year old #vehicles #WorldWar2 #WW2 #War2 #USA #vintage #Memories #MarketGarden #MarketGarden81 #Bridge

"The Singing Skulls" are ready! Working around a Raspberry Pi 3, an #Arduino Uno, some webshop items and deep dive in my junkbox. Ready for #Halloween at the local Scouting #raspberrypi #programming #C #scouting #LED #DIY #electronics

Another "useless" #easteregg for the Baofeng UV-5R mini. Press and hold menu for a #stopwatch #hamradio #hamr #AmateurRadio #radio #transceiver #handheld #surprise

This #VHF #emergency frequency is active in this area in the Swiss #Alps #hamradio #hamr #AmateurRadio #radio #SOS #antenna #transceiver #helpinghand #help #Switzerland

In 5 days I received the new #Baofeng UV-R5 mini #handheld Nice color menu, compact, USB-C charging on #battery, 5W on #VHF and #UHF, wireless (or wired) programming. For only 21 euro And #AM reception on #airband #hamradio #hamr #AmateurRadio #transceiver #handheld

Sunday morning at 9u, we started to work the whole day to get #23cm #FM #repeater PI6EHN active again. Antenna is at 65m Output is 1298.400 MHz See all information in the link below. Report are welcome #hamradio #hamr #AmateurRadio #antenna #Eindhoven #UHF #mobile #handheld

Again a new #firmware update for the #SI4732 mini #radio This time some nice features for #FM #DX Mono stereo indicators, also in percentage. And AFC fine tuning. As we had on high end tuners in #70s and #80s #hamradio #hamr #AmateurRadio #software #STEREO #mono

@Feargal_Sharkey congratulations with your 67th birthday. 73 Arno #hamradio #hamr #AmateurRadio #music #NEWWAVE

#Sundaymorning, 0630u. Let's wake up to do some work to get #hamnet and #23cm #FM #repeater PI6EHN qrv again. 27 degrees C but we have a job to do. The #antenna is on the roof, the #repeater in the rack and 3 #hamnet links are active again. We went home at 17u #hamradio #hamr #AmateurRadio #UHF

A few days ago I was QRV from DM/TH-004 #SOTA Inselsberg on 20, 17 and 15m in #CW 5W, qmx, endfed, powerbank, begali. 915m above sealevel Bad #HF conditions and no takers so I took a #beer #hamradio #hamr #AmateurRadio #antenna #QRP #mountain

After the modification, I can decode #RTTY with the #SI4732 #radio No luck in #CW decoding yet. #hamradio #hamr #AmateurRadio #mod #hardware #ESP32 #DIY #electronics #weather #Pinneberg

The #SI4732 #radio has some more new features. - ETM, preprogrammed channels - New GUI - CW decoder - RTTY decoder And many more. I try to make video when conditions are better. #hamradio #hamr #AmateurRadio #firmware #CW #RTTY #shortwave #portable #RDS #FM

My old #frequency #counter couldn't handle #23cm so that's a good reason to build a new one (up to 2.4 GHz). After adding a #preamp, the counter easily picks up #70cm from 5m. #hamradio #hamr #AmateurRadio #equipment #DIY #measurement

Or do some #FlappyBird #RetroGaming and the #Raspberry Pi #pico #GameBoy #emulator #pythonprogramming #RetroGame #retrogames #DIY #programming #hamradio #hamr #AmateurRadio #gaming #Gameplay #eSports

Playing around with a #raspberry pi #pico and a #ST7789 IPS screen. With some #micro #python code you can have this #GameBoy #emulator and the #RetroGame #tetris #pythonprogramming #pythonlearning #retrogames #programming #hamradio #hamr #AmateurRadio #DIY #electronics

How to build a site for a #23cm #FM #repeater Part 2: adding 7/16 connector and making 1/2 inch jumpers. #hamradio #hamr #AmateurRadio #UHF #coax #antenna #PI6EHN #Eindhoven

The PJL 8LED is a cheap #frequency #counter up to 2.4 GHz but isn't that sensitive This was solved by adding a cheap #preamp which I found in the famous #junkbox Now, the counter picks up the signal from a few meter distance #hamradio #hamr #AmateurRadio #measure #equipment

Hot! 32 degrees and inside the steel #tower even higher. Installing 7/8" #coax, Procom #antenna for #23cm, Ubiquiti 5GHz #hamnet #DISH and many meters #cat6 #UTP All for activating 23cm #FM #repeater PI6EHN at 65m. #hamradio #hamr #AmateurRadio #radio #Eindhoven #hot #UHF #internet

The first test with an external #microphone for #SSB operation with the #QMX #QRP #transceiver This was the easy part. Second part is making QSOs. #hamradio #hamr #AmateurRadio #radio #POTA #SOTA #WWFF #antenna #HF #voice

There is some nice SporadicE on 6m but the #solarpanel #QRM is killing the fun. #hamradio #AmateurRadio #hamr #Solar #interference #Italy #TheMagicBand #50MHz #6m

Almost holiday so dismantling my #transceiver Putting all the #electronics where my #wife will never find them. When I am at my #holiday QTH, the only thing I have to do is some searching and soldering the transceiver again. #hamradio #hamr #AmateurRadio #holiday #humor

The post delivered me this Alientek DM40c #multimeter Very good probes, good readable display, very fast continuity test. Nothing to complain until now. #WorthEveryPenny Also #oscilloscope and #frequency #generator on board. #hamradio #hamr #AmateurRadio #equipment #testing #meter

"AntiVax Radio" is qrv again on 7000 kHz in USB. According to TDoA, the qth is near Roma. #hamradio #hamr #Amateur #AmateurRasio #antivax #pirate #intruder #medical #fake #Italia #Italy #Roma #Rome #Kiwisdr #antenna

Both #Eindhoven #websdr are active again. #10GHz #3cm websdr.pi2ehv.ampr.org:8901 #13cm websdr.pi6ehv.ampr.org:8073 Antenna are at 65m above ground. #hamradio #hamr #AmateurRadio #UHF #SDR

"Holiday. Celebrate" #hamradio #hamr #AmateurRadio #building #electronics #DIY #soldering #arduino #holiday #sun

It's #June and #summer but already busy with #Halloween #Halloween2025 These Singing Skulls are triggered via FPP and Vixen #sequence Running at #Arduino Uno and #RPI Raspberry Pi 3. Waiting for 2 small servo for both small #skulls #programming #DIY #Scary #autumn #Ideas #LED

"Make #Blahaj Great Again" #IKEA #IKEAshark #shark #MAGA

Bad #HF #propagation So playgeound time and connecting the #Belka #receiver to HDSDR. Please use an 1:1 transformer to protect the receiver. Just in case. #hamradio #hamr #AmateurRadio #SDR #radio #IQ #computer #software