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Enfin qqch en français! Merci pour le commentaire et la présentation. Amitiés, 73 de la Suède, ex FY.

Thanks for the video Gil. One simple way to see if there is common mode current in the coax is simply touching it and/or moving it while looking at the VNA. If the curve changes just by touching or moving the coax you know you have common mode currents. From experience it’s almost always necessary to have a 1:1 balun / choke in almost any kind of antenna to eliminate cmc. In verticals with radials on the ground you can get away without it but .. losses..

Bonjour Gil. Où meutitrouver les boites, dans lequel metre la carte lora ? 73 de F4LCF

The orange alarm button can be disabled in the software FYI

I am going to build this antenna, so simple and cheap. Good idea.

Lead free, good for the nature but very very bad for techs. The trick with rosin will work but the melting temperature is so much to high, especialy with smd components.

This is one of the best choices for a Prepper/MAG group IMHO Anolog/DMR(digital) Ip67 Text message SMS USB-C TRI band uhf/vhf 220 (136-174MHz 222MHz-225MHz 400-520MHz) AES-256 encryption Front panel programmable Proper multpin waterproof accessory/speaker mic port. (Motorola m3)

I have noticed some reports of spurious emissions. Do you have some further insides on that?

Thanks from 🇹🇷

Je sais pas men servir 😭😭😭

Bravo. Did your friend wind the cable through the ferrite core in the same direction or 5he opposite direction as your construction? Does the direction of winding make a difference?

Is the front end any good on this or does it get bombarded by interference frequently?

Excellent, thank you

At this point I have 7 different hand helds, but you almost convince me I need one more✋73's🎙KD9OAM🎧

There have been Bluetooth equipped radios for years my AnyTone 878 and my Icom ic52 both have Bluetooth that’s nothing new!

I have both. for me, hd2 has much better reception, can "work" with the screen in the sun, the center dial works a little bit better (yet slow response), the c usb for charging is good, the antenna seems to me with better swr, bluetooth is nice to have, extra upper button is an improvement, gps is slow locking the sattelites and when using gps with aprs would like to have the channel transmiting location even when not selected (blue background) en the screen... what else?? well thats for now

The screen is slightly bigger it would be interesting what firmware will bring later in future

The radio doesn't pass the regulations regarding spurious emissions. It's just another expensive Baofeng.

I've seen several videos, the features appear to be plentiful, but several reports claim spurious emissions. Thanks for sharing.

for the bluetooth mic to trigger vox it would have to keep the bluetooth audio channel open which would kill both devices batteries. you would need a bluetooth push to talk button which are available fairly inexpensively. the earpiece that it came with probably has a ptt on it.

Great video sir, thanks!

F4iss merci❤❤

@RadioPrepper Will these devices be rendered useless if not stored in a faraday bag or faraday cage during an EMP (Electro-Magnetic Pulse) or CME (Coronal Mass Ejection)? I want to get a group of my family and friends along with myself to purchase some sort of mesh device for emergency comms in the near future if affordable. I also want to make sure that someone in their 70s is is not very tech savvy can use if phones and other mainstream communication means go down.

due to repetative strain injury i am learning with a paddle.

He usado esta version -micro W3EDP con buen resultado en 20m . Contactos en la primera prueba con : Rusia, Islandia, Finlandia ... @ 2500 km en el primer intento con solo 10W. Buenos reportes. La antena diispone de otro pico de resonancia alrededor de 10m que es muy sensible al uso de un contrapeso.Este contrapeso es de longitud muy corta y está conectado en el punto de salida "fría" del balun 1:4 , donde se une con la linea abierta de 450 ohmios. Con este contrapeso, puedo despazar el pico de 10m y llegar a 11m con una pérdida lógica de rendimiento.También afecta, pero en menor medida al pico de 20m. La zona intermadia entre picos es adaptable con ATU, pero no espero grandes cosas. El contrapeso es un punto a favor. Comentar además que el balun 1::4 mejor que sea de corriente (dos toroides separados) ya que la version de voltage ( un toroide común) no limita la corriente de modo común generada por la asimetría de la antena. En cualquier caso un choke RF siempre es más que recomendable, es necesario. Buena relización y excelente video.

Vidéo très instructive en ce qui concerne les "baluns" et la distribution des courants dans l'antenne.

La NSA ( ou d'autres agences ... ? ) est-elle apte à lire les échanges de meshstatic ?

Bonjour y a t’il moyen de trouver un wt programmable pour le 27 mhz pour pas trop cher, je sait que c’est pas aussi top qu’un poste fixe,je compte passer ma licence prochainement,et je cherche un wt ,peut être un dmr cordialement et merci pour toutes ces vidéos .

Thank you for the video! I have built this project but with the only difference being I used a 100w resistor. As far as the "rf probe" function goes, I am getting a reading with a multimeter set to DC but it seems to be about 27% off (to high) with the calculation you hold up on the paper. Am I missing something?

Could you stack speaker voice coils to get the antanner the right length?

Isn't that why there are specific WARC Bands where no contesting is allowed ? 5, 10, 18, and 24 MHz are deemed no contesting ! 🤔.....? Just Say'n !

👎

I think the Germans left lots of lead, At least twice. good video.

Great video, he speaks the truth. Really well done and excellent advice to anyone learning CW!

Bonjour Gilles , tu parles de la longueur du fil mais qu'en est-il de la longueur du coax ? la longueur du coax a t'elle une incidence sur le ROS ? si oui quelle longueur de coax faut-il ? Merci . 73'

So where is the antenna?

Took a long time to ship, mod in 1 hour, works great! Gene

He gives off such strong narcissist vibes. wouldn't want to have to deal with this dude irl...

You do know that a HALF WAVE end fed antenna is only a half wave on one frequency, right?

Use the AMS if only for covienence of not messing about with filament.

Merci pour la francisation du sujet ; ) J'ai quand même une question : Je ne parle pas que de ce cas là, mais est-ce que la section du fil utilisé a son importance pour une antenne ?

I wouldnt use these for prepping. I bet even with GPS off there is a backdoor way of turning it on letting some scrotes find you, your stuff and family.

There is an option to add your amateur radio callsign. Is that what disables encryption? It seems like in the USA you are better off not using the callsign which isn’t required on 915Mhz even if you have one.

You mentioned having something like 9 or 10 meshtastic devices. Do you have 1:1 ratio pairing to a single phone/tablet per meshtastic node or do you have multiple coexisting on the same phone?

Good session, regards from meshtastic user in The Netherlands!!

A little strange video... 🤔

Good info Gil, thank you

How much more distance is it possible to achieve switching from Long Range fast/fast to Very Long Range/Slow? I live in a crowded city so looking for ways to achieve better distance even if it's way slower.

Thanks Gil for the great information on meshtastic device for communication when everything else is down ..... nice to setup a network of them =) de Pat N5VMO

Never mind