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@JRGRAY-33

3 жыл бұрын

Currently not available

@todderbert

3 жыл бұрын

@@JRGRAY-33 In Stock May 15th, 2021

I'm really glad you do kit building videos, it saves me doing it 😊😊

Hej Todderbert nice radio kit and absolutely it good to have a fm radio transmitter backup. Furthermore, I think it looks so cool with the barebone look I am drinking my morning coffee right now. Must go out soon but it's rainstorm out today so it will not be fun I would rather stay inside today and listen to my radios. But hey The Tecsun PL-330 arrives this week but i have been waiting so long for it it also got stuck in the Swedish customs. The payment link I received did, not work at first but now I have paid VAT and customs fees so nice. Take care and always fun to see what you're doing.

This has got to be the easiest kit I ever assembled. It took longer to set up the assembly area than it did to actually assemble it. Works great, planning to broadcast music in the yard with it. Too bad they don't offer a small RF amplifier to extend the range....Fun project, Thanks.

Cool PCB color!

Good stuff! I love kits even to this day.

The QN8027 is a complete integrated FM radio transmitter. It is quite sophisticated, and is capable of transmitting video signals and audio. It has an integrated clock, but can also use a 12 MHZ external clock. It also needs an inductor. The other chip is an 8 bit microprocessor. Very cool. Remember to wash the soldered board, flux can conduct electricity.

Nicely done todderbert

Soldered a fm radio for my first soldering project 20 years ago with my dad. I'll order this kit and have him watch over my shoulder. Unfortunately we live too far apart to legally communicate over FM, but I'm working on my license to transmit.

Thanks for sharing this video. Next I would like to see your take on one of the oscilloscope kits found on Amazon. I have been thinking about buying one.

I got to ask a question do the song titles are on the radio

Intresting, thanks :-)

Back in the day, I remember getting a little output from a couple of Radio Shack FM modulators and wireless mics by simply adding an additional battery. It wouldn't "blow 'em up" or take the units past any legalities, but it would give them a bit more range. Now the modified antennas I put on 'em, THAT'S the stuff I was probably pushing it with, but antennas rock. Everyone knows that. ;) Good times...glorious times. It wasn't long after I got my Technician ham radio license (now Extra). 73 de N2NLQ

@todderbert

3 жыл бұрын

Nice, I have my Tech, may get my General this year.

excellent, as expected, many thanks!!!

Seems odd that you could only receive mono FM from the transmitter. The QN8027 FM Tx integrated circuit in this kit supports stereo and the kit's schematic shows that it is wired for both left and right channels from the input jack to the QN8027. Perhaps the microcontroller firmware is configuring the QN8027 for mono mode. Another great video from Todderbert! Cheers!

@todderbert

3 жыл бұрын

Yes, it is odd. I tried different cables and devices to be sure. Tested along with my C.Crane Transmitter as well. I noticed it should broadcast stereo, that is why I mentioned that other kits may work.

@Tristanking7

Жыл бұрын

@@todderbert I think it was from soldering vcc and grd

@bob4analog

5 ай бұрын

I noticed that too with mine. Yes, the chip does support FM mode, but it has to be pgm'd to do it. There's no other hack for it that i could find. Otherwise, it's a great monoraul FM tx.

Great kit to build....I wish they offered an AM transmitter version.

I had one of these, but now I have a Retekess FT11

Since it even broadcasts on EVEN frequencies, you can "squeeze in" in areas with a very crowded spectrum (at least if you are using an analog receiver)

I do the same thing with my FM transmitter sometimes when severe weather hits or a AMBER alert is in effect I have the NOAA Weather Radio broadcast on 95.7 FM.

I'm wondering if you could use this broadcast say audio from a projector in the front yard for doing some projection mapping light displays? What are your thoughts? I could put it inside the box on the tree lawn with the projector and tune in to the desired channel on my car radio?

@todderbert

8 ай бұрын

You could try it, but a C.Crane FM Transmitter maybe the way to go since you can control the line level as well.

I wonder if the signal would be stronger with a 5-6 volt transformer ..🤔 Anyways...thanks Todderbert again!

anything like this but for Am radio? So far I can't find any simple DIY kits like this. I just want something to transmit to my Am antique tube radios, since my state is a wasteland on AM filled only with 3 types of programming, political talk, religious, and sports. Often many stations just have duplicate programs running at the same time. I thought about going really old school and building my own out of scraps from an old am tube radio I have that is in such awful shape I was thinking about just using it for parts anyway, but before that i'd really like to try and find one of these kits, partly cuz they'd have everything already that i'd need, partly cuz I'm still not 100% sure i wanna scrap that other radio.

@MrMagicman00100

2 жыл бұрын

Look up part 15 am kit

Your output power is going to be in probably the 5 milliwatt range, because, believe it or not, you can actually go nearly 2 miles with 1/2 watt, if you're using a properly loaded antenna that's outdoors and high enough in the sky.

@grebulocities8225

2 ай бұрын

You can go even farther than that on half a watt if there are no obstructions. The extreme case is that ham radio satellites usually transmit about 0.3 watt and can still be picked up from 500+ miles away even with a whip antenna under good conditions. More common cases are when there's a significant elevation difference providing a clear line of sight. But I agree with you that the transmitter is likely 5 mW if that. The FCC rules are very strict on unlicensed transmitters in the FM broadcast bands. Even this is probably technically in violation, but they wouldn't really care as long as the signal isn't actually interfering with anything or being heard over a wide area.

Does it sound like as interference at low audio levels? Is their hiss when no music playing?

@todderbert

Жыл бұрын

Not that I noticed. Of course depends on the receiver, and distance to the transmitter. Otherwise it is quiet when I'm near it.

I would modify it so that you could add an 18650 battery. You would squeeze out about 3.2wh out of it, possibly extending your range.

I put mine together but I can barely hear anything because the volume is so low. I made a mistake, I messed up the polarity of the on/off switch but it turned on so I left it like that. Would that be the problem? I tried to do it right but I was having a hard time trying to desolder it. Please any help would be appreciated

@todderbert

2 жыл бұрын

I wouldn't think the switch could be the problem since it is a single pole single throw type. Try increasing the volume on the attached device. Also use a digital radio to receive as a test. Be at least five feet away from the transmitter.

How would you extend the range a little bit???

@bob4analog

5 ай бұрын

Connect a longer antenna, probably around 3 to 5 feet.

Now all you need to do is build an amplifier for it 😜👌

@davidaix5771

3 жыл бұрын

Nothing like transmitting on medium wave👌👍

the math; 468 / 98.5 MHz = 4.7 (feet) or 57.0 (inches) over all length for a (half wave) "DI-pole" antenna. Or 57.0" / 2 = 28.5 inch radials for (1/4 wave) ground plane or other types of antenna. (for reference purposes only)

Should I buy the cc pocket

@todderbert

3 жыл бұрын

Up to you. I like the added Weather Alert, and MW DX tools. A fine little radio with great support in the USA.

That's so cool. Are there kits out there to build your own am radio?

@todderbert

3 жыл бұрын

Yes there is, the Tecsun 2P3: kzread.info/dash/bejne/c2mIj62pnsfeo9Y.html , and the Murania AM Radio: kzread.info/dash/bejne/YoxklKWNg8fPZdo.html

@MrMagicman00100

2 жыл бұрын

This company also makes a neat am fm radio kit

Replace 12 inch antenna with a 30 inch antenna and recheck range 😉👍

How Meters ist the TX

@todderbert

5 ай бұрын

Small Radius. Around Ten to Fifteen Meters.

I wish I have it):

@amysuresh4292

3 жыл бұрын

then get it off of amazon

Just checked, its unavailable on Amazon... =/

@todderbert

3 жыл бұрын

In stock on May 15th.

There is no way I could make this, any idea if they do one that's already made up...?

@todderbert

3 жыл бұрын

you could always email them and ask.

Hello found your channel because I was looking for a SW radio. I have an interest in sailing and Marine SSB and would like to see a video about listening to SW in a remote environment. What radio equipment you would take etc. Also if it is in your channels realm to listen to a talk about SSB radio on remote stations the setup and best power efficient 12 volt solar battery dependant, etc. Cheers!!!!

@todderbert

3 жыл бұрын

The Sangean 909X is very popular with Sailors.

WANT

Range

I wonder why no one has ever created a kit based on the Armstrong method of FM generation.

It seems that you don't have any PHILIPS Radio in your collection

Side project for radios you don’t like? Everything I hate about this radio.... Hahaha

670 "The Score". Why did they do that? Just chuck a decades old legendary call sign into the bin.

you have a lot of radio, can you please send me cheap one

@danserrano2251

3 жыл бұрын

Nice Try 😆

123rd like!

Just found your channel :) very cool👍 Be well♡73 N7AOE

@todderbert

2 жыл бұрын

Thank you!