| T O P I C R E V I E W |
| n/a |
Posted - May 19 2003 : 10:02:45 AM
hi!
the phone transmitter in your website.
i dont know... how long the wave? 200 Meters?
Tomer
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| 9 L A T E S T R E P L I E S (Newest First) |
| YS |
Posted - May 28 2003 : 10:26:02 AM
Because :)
well, phone line supplies the DC current along with audio signal. It is enough to power the small FM transmitter. As you never know the polarity in phone line, you need a bridge. To separate AC and DC, you need capacitor. There is probably a mistake with the switch S1 - it should be able to disconnect the circuit from the line without interrupting the conversation, but I think you can figure it out yourself.
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| n/a |
Posted - May 27 2003 : 2:50:29 PM
why?
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| Aaron Cake |
Posted - May 19 2003 : 7:04:41 PM
Yes, the circuit works.
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| n/a |
Posted - May 19 2003 : 4:33:04 PM
and that shuld be work?
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| Aaron Cake |
Posted - May 19 2003 : 2:39:48 PM
It's useful if you want to spy on someone, or record conversations for other purposes.
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| n/a |
Posted - May 19 2003 : 2:14:58 PM
is it useful???
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| YS |
Posted - May 19 2003 : 2:06:02 PM
You can receive it on normal FM radio.
This is a spy device, so you can not talk back. You will hear both telephone users talking
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| n/a |
Posted - May 19 2003 : 11:16:44 AM
and i can to recieve that in normal Radio FM?
and i can to use it for dialog?
what is doing?
Tomer
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| YS |
Posted - May 19 2003 : 10:44:47 AM
200ft is range, or maximum distance to the receiver. Wavelength in meters = 300/frequency (Mhz) therefore wl= 300/90 = 3.3m approximately.
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