Hi friends,
I would like to construct any jammer for 1800 MHz. I look for VCO for this.
I would like to use cheap semiconductor.
I think to use oscillator with BFR91 with varicape and it will be good.
You can look to my other topic there is my transmitter for 1,3 GHz.
I can do oscillator for 1.8 GHz. What do you think?
Or have anybody better idea?
Bye. Josef.
Hi Josef,
yes, it´s really difficult to find a vco for GSM1800.
I already tried to build a GHz-transistor oscillator by myself, but i failed. The problem is that i do this for hobby and don´t have expensive measurement tools.
Your transmitter is really nice :-)
Of course i want to ask you for the schematics... especially for the oscillator.
Building such oscillators is soooo hard.
Greetings,
Richard
Hello!
Maybe can use frequency doubler???
Hi...
sure, frequency doublers are possible. But don´t ask me about their attenuation 
. Some gain stages and filters would be effortful.
I made some experiments on rf technology... when it doesn´t work, it can be very frustrating...
In my opinon, this is too difficult to realise for most people.
I´m still thinking of an 900MHz, low cost, easy-to-build, low power jammer mounted on a pcb without the need of adjustments... sounds difficult? No, sounds competeting 
If only i had more time...
Re: Jammer for 1800 MHz
good!
| good! |