should I?, a simple 201a transmitter

[jbivy]

I found this schematic, dont worry ive the rest of it for specs. I have 90% of everything i need for it just sitting in my junk boxes. Im debating on tinkering this together over the next week.

Is there any glaring defects or changes i should make to this design? My goal is to simply transmit across the room and know that ive done it.



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[Sandy G]

Oh, Hell. Go For It, you KNOW you won't be happy til you do....(grin)

[jbivy]

Originally Posted by Sandy G

Oh, Hell. Go For It, you KNOW you won't be happy til you do....(grin)

Well.. youre right about that. Its hard to see a cute project that you could get done in an evening and NOT attempt to do it. I'll breadboard this circuit this weekend hopefully and see about tuning it.

[bob91343]

The problem is, the power of that oscillator is probably greater than the legal limit for unlicensed operation. So you'd best have a license and make sure the frequency is within your permitted range.

I don't know what frequency that will give but I suspect it's in the HF range. How to you plan to hear the signal?

[jbivy]

Originally Posted by bob91343

The problem is, the power of that oscillator is probably greater than the legal limit for unlicensed operation. So you'd best have a license and make sure the frequency is within your permitted range.

I don't know what frequency that will give but I suspect it's in the HF range. How to you plan to hear the signal?

Well ive a multiband receiver that will cover that problem.

As for the legality?, I assume with a dummy antenna and a lower plate voltage ill be fine. My goal, as i said, is just to see if i can do it and transmit across the room.

I did attempt to take a course and get my amateur license, but the classes were continually being cancelled since people never showed up. I got real irritated of showing up and week after week it being cancelled since no one else showed. I suppose ill try and find a different outfit that offers classes, eventually.

[Einar72]

Lemme know when you plan to test it, I'll listen in!

BTW, this is un-modulated (maybe some power supply hum will be present), so the carrier will be "skinny".

[bob91343]

Taking a class to learn amateur radio isn't very effective use of your time. Get a book or just take the online tests repeatedly until you get it. No code proficiency needed any more.

[jbivy]

Well I hate to wait, i just wound the coils and shot them with a sealant. They should be dry in the morning and ready for me to start in on this.