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Tibi can you send me an email ? I'll send you a voice message to explain a bit how to get it to work. Also... if is the older version that had no trimmer capacitor on the crystal as the new version has... then try listening to 26.9 MHz or around there instead of 27MHz.

Usually yes... once the temperature becomes stable on the components, then it also becomes more stable in frequency. That is the reason why normally we should use NPO capacitors that have little drift in capacitance when we have temperature changes. But of course we use whatever we have. Built well with quality capacitors it can be pretty stable. I remember I made a test last year... and in 12 hours it only drifted 10Hz... not bad. When building a regenerative receiver it needs the same atention as you would build a VFO. The better the components and more attention to details, the better the performance.

You have to be careful on where is the regeneration control. The problem with the regenerative receiver is that to read the frequency with the counter... the regen control must be in a specific spot and constant... otherwise the counter will be all over the place. Let me know if it works this way.

If we take two parallel wires used in an inductor.. that are basically identical... does it makes a difference what wire we are measuring ? Both show the same results right ?

@@dxexplorer I am strictly referring to the test on the coax wound onto the toroid. Not the two identical wires. The coax shield will carry the common mode interference. The coax shield will act as an antenna and carry unwanted RF back to the radio.

@deanberglund2332 Yes I understand that... but when making the test... are not the shield and the center conductor two parallel windings just as it is in the case of the regular wires ? In real life indeed the common mode current will be on the shield not on the center conductor... but if you connect the wires for measurement the other way around.. as you say... the results are idendical. Ok maybe just minor differences since the shield is actually closer to the toroid than the center conductor and the result of that may actually be a little better than measuring the center conductor. But in conclusion... the coax also is nothing but two parallel wires separated by an insulation. I hope it makes sense. P.S. I did tested long before making the video the other way around as well out of curiosity .. almost no difference. The reason why 99% of the people are measuring this way is for convenience as is much easier to make the necessary connections to the connectors. No other reason.

@@dxexplorer First off, thank you for your speedy response. I do see your point although, my logic of thinking is that the center conductor is actually being shielded by the coax's braid and the toroid isn't having as much effect on the readings you get. Thanks again for posting this video. Every bit of experimenting and video helps in understanding. Thanks again.

@deanberglund2332 Always a pleasure. Do not worry... some of the comments on the video and other similar videos also confused me very much... that is why I decided to do the measurements myself so I can experiment and see on my own if there is a difference in the readings or not. Regarding the coax on the toroid.. it works on the same principle of any inductor made on a toroid. The closer the wire is to the toroid the better. That is the reason why the shield will always have better measurements since is much closer to the toroid, not the center conductor. The way I see things... if it works and I have no problems with common mode current... I am happy. I don't look for perfection... that is always only on paper... a lot like politics today 😅.

Depends on the frequency. You can of course you can if you want to... but you must also have a license in order to be able to transmit. Especially when it comes to broadcasting. Otherwise... things may turn out really ugly. P.S. I am not a professor 😅

​@@dxexplorerYes, I have a license. Please help me make or send a diagram

@HAMZALIVE7 On what frequency ?

They have the model D808 that I also received and that one has also SSB.. LSB and USB and nice filters. You can also listen to CW as well with a little adjustments. 73, YO6DXE

@@dxexplorer I do have the Sihuadon D-808 from the sibling company of XHDATA, I have to try the HF yet, good features in that radio but audio is OK typically. Another one I have is XHDATA D-109 good to hear, this weather looks an upgrade of D-109 and I was about to get this one, but weather band is not there in India. Thanks ☺️ 73s, VU3PZJ

@automotriztechnica On the D-808 the sound is not that amazing as the one presented here in the video. This one is just fantastic. Ohh do not worry... we do not have weather channels here in Romania either. But as grandpa used to say, if I want to know how is the wearher... I go out and look at the sky... and I know 😁😅.

That sounds great. I am happy it works well. Hmmm I never built a magnetic loop antenna, now I have something new to try also 😁😁. 73, YO6DXE

I like it. And with the firmware they are working on at the moment... it will be even better. Can't compare it with an Yaesu I am sure about it... but I can't compare the price of an Yaesu with a Tidradio either. It's not the perfect transceiver I am sure about that... but I like it and so far it works fantastic. When it comes to firmware updates... I don't really bother on that part to be honest. If the radio works and it doesn't what I want it to do... I never update the firmware. I am more into analog stuff anyway 😁. 73, YO6DXE

Markus... is not me that has to switch the CC on... is you when watching from the controls on the video. I do not have control of the device you are using in order to turn the CC on 😁😁. TH-cam does the translation automatically now. 73, YO6DXE

Yes indeed. What I wanted to test was a theory some people kept insisting on that I wanted to test. And that was that you could replace any Crystal with a VFO with no need to make other changes to a circuit. So I guess I could say "Mith Busted" 😅. 73, YO6DXE

So far I love it too and makes me soooo happy that I can finally measure small inductors. On the channel... thank you for the nice words. Is ok even with the people watching now. The smaller the family the better 😁 ( grandpa used to say ). I still have time to get to know most of the subscribers and talk here in the comments and that makes me happy. Feels like having a bunch of good friends... always helping when needed and always letting me know when I mess up by giving me better solutions. 🙏🙏. 73, YO6DXE

Always a pleasure. If you can use ( I did not had ), try one of those teflon insulated wires as is much better ). Is not as stiff as the regular wire. 73, YO6DXE

Good question. From what I've seen on the nano VNA I would say that yes. Probably material 31 instead of 43 wold be even better. And if you can use a larger toroid like 240-31 would be even better. I do remember when I used to make chokes for CB on 22cm diameter PVC pipe with coax turns on it that looked like a pot at the base of the antenna. I wish I knew back then about these ones we have now 😄.

Hehe... thank you so much. Nigel is my New Zealand friend ( ZL1NAY ) 😄. 73, YO6DXE happy weekend.

Have you seen the publised date of the video ? I can't just take videos down and make new ones every time they release a new update. I do not work for Tidradio. 😄 73, YO6DXE

I need to read the instructions 😄. But if I remember from some videos I watched long ago about this one... when I do the second calibration not the one it does it self when turned on... I should just have the leads connected. But I will double check to be sure 😅. 73 Nigel.

Yes the bandwidth is limited as the varicap or even the regular 1N4007 diodes usually can only cover the amateur radio band in 40m. The first Sputnik I built was also using a variable capacitor instead and ohh yes with that I could cover a lot. But since I wasn't so interested in the rest besides the amateur radio portion... I replaced it 😄. 73, YO6DXE P.S. Thank for for the nice words and watching the videos, as well glad it works and you like it. I am working on an enclosure for mine now as after all the changes I ended up with the board on a table and thats it 😅.

73 and thank you so much for always watching the videos.

👋😁 73, YO6DXE and thank you for watching.

Indeed it works... but to be honest I find it difficult and a pain in the back as for accurate measurements you do have to calibrate it every time, depending on the parts measured unfortunately, otherwise it will not give accurate measurements at all. But I find it as a good "backup" solution if there is no LC meter. Honestly is so much easier to use the LC meter and to "0" it is just a click of a button 😁. Still... love the NanoVNA as well just as much, but for other things it can do. 73, YO6DXE

You are right. Acceptable reasons. 73 TA3KVO

73 my friend. Have a fantastic weekend.

I really wish I had at least half of these when I started. I wouldn't have to build "by ear" for so long and struggle so much wasting valuable time 😁. Especially when it comes to LC circuits 😅. The osciloscope... pffff that is a long time dream for me too. But not so much now as I don't think I have enough space for all the stuff I want in the camper 😁. 73, YO6DXE

😅😅😅😅😅

I absolutely love it. It's really nice.

The only place I know so far: www.kanga-products.co.uk/ourshop/prod_7633806-Manhattan-Style-Solder-Pads-sheet-of-150-Double-Sided-Pads.html

I did not try. It might but I am not sure. I know the older version that had a voltage regulator didn't work. This newer version I tested with low 12v battery... around 10v... and it was still fine. But because of the diode tuning, the lower voltage it will also change the tuning range as the diode won't receive the proper voltage. I hope it makes sense. I could prevent that by adding a voltage regulator I guess. But then is more parts to be added and I try to keep it simple )).

Yes. Technically on the 40m band is not like we hear a lot of AM or FM stations... but it can demodulate all signals: AM, FM, SSB ( either LSB or USB ) and CW. You change between these modes by adjusting the regen control.

I do too. Not just Chinese, all good old music seems nice from all over the world. As they say... old is gold 😁.

Thanks so much. This I never tried. Time for some more experiments I guess 😅😅. 73, YO6DXE

Thank you so much 🙏🙏🙏. 73, YO6DXE

I agree with you. Well... I like the sime design using just one tranzistor I won't lie. Is fun to play around with it and you have some satisfaction when doing a QSO. But when it comes to stability and performance... I think I will put this simle design on steroids... around Christmas time if I have the free time 😁. 73, YO6DXE

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Thanks so much. I really love this little TX. So simple and easy to build. And I learn a lot too on the way. 73, YO6DXE

@@dxexplorer Trying to order some PCB'S now. Thanks!

@alanuk8677 Always a pleasure. Glad I uploaded the corrected version last night before posting the video. The transistors had the pins the wrong way. Not sure who made the footprint but I know to double check now when importing something into the library 😁. 73, YO6DXE

@@dxexplorer ah right. PCBway says my order is under review so not sure what's going on there.

@alanuk8677 Is because I updated the file and they didn't had the time to check the GERBER yet. It should be fine by tomorrow.

Hi and I hope you had a great weekend. Almost over now 😁

Hehe... yes you are right. I want to build one with two transistors as you described, or more as there is no limitations... but also making it with a VXO instead of a fixed frequency. I will try to cover the entire CW portion of the band 😁. Christmas time plans 😅. 73, YO6DXE

I also like these simple projects. I think this is why I always loved and always will love CW... because of the simplicity of the equipment needed. A handful of parts and you are on air in no time. And with the right conditions even with low power you can reach really far... even with no giant Yagi antenna 😁. I know in 160m, 80m, 40m and now 20m it will work fine with little adjustments needed for each particular band... but if I get crystals for the 10m band, I would love to test one of those versions as well. 73, YO6DXE

@@dxexplorer As you say a handful of parts and you have a tx. I have a 61BT valve out of a non-working oscilloscope I was given and put it on 5.262 MHz, about 2 Watts. I like 60m and put a Pixie on 5.262 MHz as well, furthest QSO at 180 miles with a SWL report for that QSO from Utrecht at 220 miles. 350 mW out into a low inverted vee. 73, G4GHB

@bill-2018 I was just talking yesterday with one of my mates about building a tube transmitter. He sent me a schematic with a penthode that I should try as a first. I need to get my hands on some transformer first. I love tubes, but I never built anything with them. Pixies are fun too. Sadly here in Romania we can't use the 60m band 😔. 73, YO6DXE

I need to get myself some RF attenuator and measure the harmonics on the TinySA as well to see how efficient it is in real life as well. So far by "ear" it seems to work fine 😁. 73, YO6DXE

I made the board with the idea in mind that I will always use the bigger crystals since I know that the smaller ones have this issue. Is just that my buddy Vlad sent me the little ones to build some stuff for him... so I used what I had 😁.

I haven't tried that low yet, but I do want to try a 160m version ( 1.8MHz ) and if that works then I am sure 1MHz would work as well. I built a Pititico transceiver for 160m band and it worked so I don't see why this wouldn't work.

Years ago I built one with one BFY50 with something like 30/40 turns on an Aladdin coil former with slug and maybe 30 SWG in the collector with 1,000 pF across it and a 1.910 MHz xtal and took the output off the collector. One 22 KΩ resistor to the base. Colpitts with 220 pF and 265 pF. Dead simple. G4GHB.

@bill-2018 That is homebrew style all the way. I keep having in mind to build one using really old recovered components ( that are still decent good ) and make some vintage style transmitter 100% homebrew. I don't know if its just me, but I have a diferent kind of satisfaction when using those.

@@dxexplorer Good luck with your project. I love building stuff, h/b ssb/cw QRP tcvr, dipoles, inverted vee, 4 el collinear, digital freq. meter years ago from a kit, Wheatstone Bridge type SWR meter. Repairing cheap tatty gear, TW TopBander £5, five Pye Bantams £6, tatty Wireless 19 Set £105 but I wanted QRP and xtal on tx using the EF50 valve and new rx input circuit and h/b inverter inside. That needed a lot of work, re-winding two coils and other things. Racal RA17L needs attention. 73, G4GHB.

@bill-2018 I also love building stuff related to the radio hobby. I don't know why I am so attracted to this since I was a kid. But as they say... boys and their toys I guess 😁. Love every little bit of this. Good luck with your projects as well. I think this winter I will reserve time to make enclosures for all the finished ones and this way all the projects will be completed. Meanwhile I also have some antennas work to do as well. After I moved in this new location I simply "improvized" antennas really quick to do the job... but I need a better setup in this matter. 73, YO6DXE

If it works on 40 and 20 I am sure it could work for other bands too yes. I will play with the 80m version these days, and I don't have a crystal for the 10m band but if I find one... I will make some tests and put all the info in the blog article. 73, YO6DXE

@dxexplorer thanks, I was thinking this kind of circuit seems perfect for a low cost beacon. I would like to make one for 10 metres.

@LouiseBrooksBob I think you can just recalculate the LPF for the 10m band, then replace the crystal and test it as it is... and eventually adjust the value of C3 if it doesn't oscillate. I will try to find a crystal for the 10m band as well, this way I can make lots of versions of it haha.

@@dxexplorer thanks! That's really helpful.

I did one using a BFY50 but it's chirpy on 10m and 17m. Okay below those frequencies. G4GHB.

Thank you hehe. I am building one for me as well now 😁. 73, YO6DXE and have a wonderful Sunday.

@dxexplorer Nice!

Thank you so much for watching. 73, YO6DXE.

@dxexplorer you are welcome

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😅😅😅😅😅

Ohhh yes indeed... a VXO would not be bad at all. I didn't do that just because I wanted to stick as close as possible to the original schematic I found, but I am preparing something in that matter too ( maybe around Christmas ) 😁. 73, YO6DXE.

Ohhhhh I must put one more beer for you on the list 😁. That is a great idea indeed... and I have lots of those recovered from old boards. Thanks Nigel 😁. Bed time here... I am dead tired. 73

@@dxexplorer I bent a small piece of aluminium with an extension piece and heat sink compound to fit round the P.A. transistors in my Pye Bantam. G4GHB.

Yes yes it was wrong. But I updated it meanwhile. On the blog article, If you use the link in the video description, there is the updated version. 73, YO6DXE

What is the proper way ? Asking because 99% of the hams I learned from use the same method. Taking in consideration the fact that I no longer have issues with common mode curent, they must be doing something right. 73, YO6DXE

The blue multiturn potentiometer ? Is 10K.

@dxexplorer thank you very much .

@kanjitramchiary7183 Always a pleasure.