| Author |
 Topic  |
|
|
n/a
DELETED (Inactive)
2 Posts |
 Posted - Feb 27 2003 : 8:08:55 PM
|
Hi,
I'm doing the phonebug that i found a this page:(http://www.aaroncake.net/circuits/phonebug.htm)
I made the circuit but its not working and i tryed different induction. I dont know if you can suggest me something.
sorry for my english
|
|
|
Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Mar 01 2003 : 4:51:28 PM
|
Have you done the standard troubleshooting stuff? Checked all connections and wires? Try using an oscilloscope or frequency counter to make sure it is trying to transmit. Also, trace your audio signal through the circuit and find out where it stops.
|
 |
|
|
n/a
DELETED (Inactive)
2 Posts |
Posted - Mar 04 2003 : 12:03:49 AM
|
quote:
Have you done the standard troubleshooting stuff? Checked all connections and wires? Try using an oscilloscope or frequency counter to make sure it is trying to transmit. Also, trace your audio signal through the circuit and find out where it stops.
Thank you.
I tested my circuit with a signal generator with 6 volt of DC offset and 8 Vp-p at 1 KHz and when I put the FM recever Near the transmitter antena, I can listen to the wave but the signal is very low. At 1 meter, I have no more signal. The transistor is modulating cause when I touch the colector with a piece of metal (little wire) I lost the signal on the FM recever. So I think there is a problem with the power of the transmitter.
|
|
|
|
Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Mar 04 2003 : 10:12:51 AM
|
The transmitter is easily good for 300 feet or so...Are you sure you are listening to the "real" signal and not a sideband or harmonic?
|
|
|
|
Hassan Kude
Apprentice
Nigeria
63 Posts |
Posted - Mar 12 2003 : 09:49:21 AM
|
aaron,
a suggestion please.
it seems many people have problems with getting their circuits to work.i know you are a very busy man,but i beleive by taking a little time to post a small note on sttandard troubleshooting techniques will go a long way .so that you can almost always refer people to it anytime they complain about their circuits not working.after which they can be given specific instructions on how to go about solving them.
Zig Zag |
|
|
|
YS
Nobel Prize Winner
USA
1132 Posts |
Posted - Mar 12 2003 : 4:45:17 PM
|
Hassan,
I fear that you ask too much of Aaron. Actually, you may find a "note on standard troubleshooting technique" in a bookstore. Such a book usually has several hundreds of pages and contains lots of info.. unfortunately, it is hard to use such "notes", as every case is slightly different. The best way is to combine practice with learning electronic basics. Beleive me, nothing helps like solid basic understanding. Electronics is really simple, by the way. There is absolutely no magic unless you go to extremely small or extremely large values of voltage, current or frequency... So, please do not ask Aaron to write another book, unless he wants it.. :-)
|
|
|
|
Hassan Kude
Apprentice
Nigeria
63 Posts |
Posted - Mar 13 2003 : 04:59:57 AM
|
thank you YS.actually i was thinking it will help ease his work,because so many people are asking him so many questions on that subject.i didn't mean to bother him.honestly.
Zig Zag |
|
|
|
Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Mar 13 2003 : 1:24:15 PM
|
Actually, considering it says in quite a number of places on this site that I don't answer electronics questions anymore, I figure I am doing an extraordinary amount of work all things considered. As mentioned, I am not updating the electronics section because I have lost interest in the subject, and it just creates WAY too much work.
|
|
|
| |
Topic |
|
phonebug
