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Excellent review of the small rtx, I own it, I built two rf boards, Hi and Low and I have to build the classic. He criticizes the calibration of the Hi. For the rest I can only speak well. 73

Since you were operating from the car, would a magnetic mount on the car roof been another option? The magic arm was very interesting!

FYI this setup works excellent on JS8Call as well. No CAT control needed for me, as I only use a 40m NVIS antenna configuration. Now... can this little radio work with Winlink... 😎

I use one of the super clamps from my GoPro git stuff. Pretty close to the same. Thanks for the video Morton! 73

It seems a bit big and slightly heavy that mount. So I guess is for drive-in's mostly. But then one of those mounts you put under one of the car wheels seems much more efficient. No buttons to turn when the frost is biting. No parts that will get frozen solid if there is both snow / sleet and cold :-)

Nice! I have been using a spike antenna since last winter and was wandering how to solve this! Thank you!

Ice fishing anchors would also do well as I have drilled into some strong frozen ground with them. Using a portable drill with the ice anchor adapter will of course make it easier.

"Spain is in Europe" 🤣

I'll have to get one of these.

Duuuude I wish we had this WX here... 💯😍👍

Great idea, Morten. It works great for any location, too. 👍

I wanted to put my µSDR on FT8 but didn't want to deal with not having schematics, putting in time on a maybe, spending time on a mode that I only use from time to time, and isolation and ground loop issues between various devices. My solution was to acoustically couple the µSDR to my smartphone. Just like the old FAX machines. I made a video about it and it's a fast and dirty method. I don't know if RUclips allows pasting a link in a comment section however if you search for my video by name I'm sure you will find it. The name of the video I posted is: "Acoustic coupling a µSDR transceiver to work FT8 on a smartphone or tablet." Good job on the cables Morten and thanks for providing the info on hard wiring in the audio cables. FT8 isn't the most pleasant sound HI HI. 73,

what antennae do you use with this. what would i have to buy to get one of these operational?

OMG I've been fighting this thing for 2 days until you said "flip the usb cable around to use it".

I've been using a rybakov this year that I built using a 31-foot fiberglass telescopic pole, a 4:1 unun that I wound, and 6 16.5 ft ground radials. It works great, and I made a lot of contacts with it. Recently, I put together another one using a 25-foot telescopic stainless steel whip and a commercially made 4:1 unun, using the same ground radials. I've been thinking of changing the ground radials to either adding a few more long wires to the bunch or trying a raised radial system, which would have to be tuned. I really like the rybakov configuration. 73. Joe from Chicago (I love the Bears hoodie you're wearing). Go, Bears!

So cool that people can market and sell a product like that, which works, and comes with a 3D printed case 😊

Thanks for comparing it to the Baofeng, LOL

Nice work!

The (tr)uSDX is smaller than the speaker, the battery, the common mode choke. I guess the space saving advantage is lost with the other items.

Forgot to mention . They work well on SSTV as well with same interface I made. George

Rather see it on a spectrum analyzer than on a scale.

A real qrp antenna. Would be interesting to test it with your qrp t-match tuner as well.

Mine works extremely well. I just use my simple interface. Mic, and Spkr connection from an old earpiece wire etc. No cat control. Works perfectly on my DIY mag loop. Vid = "FT8 Digital Mode. Ham Radio. Magnetic Loop Aerial" cheers from old George

Apart from the weight, does it work?

Incredible! i love these tiny simplistic things that just work!

but your schema shows PTT. why USB sound card? why not "regular one"

Sponsored by Ali express, immediately downvote

aliexpress link doesnt work

discord link does not work...

A FT50-43 toroid is much to small, even with qrp. The core will be properly saturated and have much to high losses. Also a 2/14 Winding is not ideal for small toroids. With 3/21 you will have a better match of the XL to your TX. If you looking for a small qrp UnUn, pls have a look to my UniBalun or 221-UnUn project and use a FT82-43 together with an FT50-43 (inside the other toroid) 73 de DG1JAN

Nice antenna. Any idea what max power would be on it? 73

I have one, more than a week time I am struggling connect to FT-450D, no manual arrived. different settings, software VSJT, external audio card. Manually set, start to decode, waterfalls is OK, but can Tx only when radio is "none" and pressing Tx Enable button and this only with Data cable connected However, sometimes is stick to Tx with no releasing it. Very unstable indeed. tested with another USB audio card with same result. Seems CAT interface does not initiate and work at all. Rig control form PC I was not able to manage. Seems the cables I got are not that shielded, over all disappointing unit ...

Antenna connection how?

Just ran across this hoping to get my IC706MKIIG on FT8. This was very informative, thank you. What mode do you set the radio to, there is no data mode, just SSB, CW, RTTY and AM/FM.

Takk for ett ubrukelig tips :-) En sånn må jeg selvfølgelig ha i shacken :-) så en bestillt, 300 NOK. Who you gonna call? Ghostbusters :-)

great!

This is quite interesting, thank you very much. I'll order one of the lilygo devices to try this out. 73

Very nice.

Great video about an extremely cool low power mode. I'll just mention one detail; the tracker firmware is set up to support 3 distinct profiles. That way you can easily switch symbol and call-sign using the buttons on the tracker. But it's also flexible enough that you can set individual operating frequencies for each of the profiles. Very useful if you bring the device to another country where they use a different frequency. Not so good if you're only planning on using it on 433.775MHz. So in that case I would suggest that you set all the 3 profiles to the same frequency, spreading factor and coding rate. For Europe (sans the UK and Poland) is 433.775MHz, spreading factor 12 and coding rate 5! Happy APRS-ing 🙂

Video?

Cool stuff Morten… I’ll be following you on this venture… Totally makes sense to use lora mesh for aprs messages… to be honest it’s a more “regularly useful” application for it than off grid messaging.

I bought this and have had great results with it. Have been running my Xiegu X6100 QRP and made contacts with someone doing POTA in WI (I live in PA) and as far West as OK.

I have had the 705 since June, but I still can't find a suitable power Amp for it.

Learn CW. Also apply your knowledge on how to tune antennas so that they work. Buddipole as well as it's chinese copy you were suffering with work just fine. I have more then 320 countries worked with a buddipole on my balcony from 2006. I am in EA4. No digitals though...😉

thanks Morton great video 73 from kb2uew

Great news for Norway (if you need any info about flashing or anything let me know) , 73 from CA2RXU ;)

Ive just ordered a couple of these, my workplace uses the old RT22, and ive read the data from the old radio and it seems like they are set up on the 462mhz frequency range, i believe the new model i have is 466mhz. I dont have the programming cable for these, but im guessing the frequency cant be changed?

Try frequency 434.855 with BW125kHz CR 4:7 SF 9. It's called "Polish frequency," but it's not used by ISM devices such as garage openers, electric meters, scooters, and so on.

we have something in common - the tin "elektroniklot" 😅 regards from germany

Please keep experimenting with Morten. I love low-cost ways for hams on a budget to experiment and learn. WA1KLI