Re: what is that MAR-8 driver
Getting 5V for the MAX2622 is the smallest problem, isn´t it?
7805, 78L05
Re: what is that MAR-8 driver
Chris,
on the Jammer II page, your calculation of the antenna length is incorrect.
Lambda = em travelling speed / frequency
so for the middle of the GSM band you'll get:
0.32 m = 300 / 920
1/4 Lambda -> 0.32 / 4 = 8.15 cm
8.15 * 0.95 (speed factor) = 7.75 cm long
æ
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Re: what is that MAR-8 driver
thanks ... you're right ... !!
Most of the time im calculate at 1,89 Ghz ,,, so im going to correct during the next days.
Chris
Re: what is that MAR-8 driver
hi freinds
here is my noise generator i make as it is given by richy_64 but not working any help i will be greatful
Re: what is that MAR-8 driver
and here is the richy_64 circuit
Re: what is that MAR-8 driver
The three transitors are wrong. Swap collector and emitter.
Re: what is that MAR-8 driver
can i use this in place of noise_gen
square_wave_circuit.jpg (34 kByte, 965 x 332 pixels)
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Re: what is that MAR-8 driver
of corse ... if you don't need such a hight output voltage ,,, it's possible to drive the circuit with 5V & lower output
what is our VCO ??
(Pos1060 need over 20V)
Chris
Re: what is that MAR-8 driver
what value of this capi
Re: what is that MAR-8 driver
jusr claer these things plz
1) in ur n-gen circuit ...bc5506 is pnp or u want me to use bc547?
2) who much output noise is good for test cricuit . i have other n-gen having output noise is 1.25 is that eoungh?
Re: what is that MAR-8 driver
@ mujeeb
100nF or 0.1uF