Bitcoin Forum
May 09, 2024, 03:58:14 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Pages: [1]
  Print  
Author Topic: trying to make fm transmitter.. need some electrical type person to assist pleas  (Read 861 times)
Justin00 (OP)
Legendary
*
Offline Offline

Activity: 910
Merit: 1000


★YoBit.Net★ 350+ Coins Exchange & Dice


View Profile
October 09, 2013, 06:16:50 AM
Last edit: December 23, 2013, 01:02:20 AM by Justin00
 #1

.

1715270294
Hero Member
*
Offline Offline

Posts: 1715270294

View Profile Personal Message (Offline)

Ignore
1715270294
Reply with quote  #2

1715270294
Report to moderator
1715270294
Hero Member
*
Offline Offline

Posts: 1715270294

View Profile Personal Message (Offline)

Ignore
1715270294
Reply with quote  #2

1715270294
Report to moderator
1715270294
Hero Member
*
Offline Offline

Posts: 1715270294

View Profile Personal Message (Offline)

Ignore
1715270294
Reply with quote  #2

1715270294
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
TheButterZone
Legendary
*
Offline Offline

Activity: 3052
Merit: 1031


RIP Mommy


View Profile WWW
October 09, 2013, 08:59:22 AM
 #2

Have you tuned your radio all across the FM band while playing a constant tone into the transmitter input so you know when you land on the center of the transmit freq? It's possible the transmitter is just splattering all over the band, or what some call desense. If a transmitter is close enough to the receiver, it doesn't matter what freq the transmitter is on, the receiver will be overpowered by the signal strength.

Saying that you don't trust someone because of their behavior is completely valid.
goxed
Legendary
*
Offline Offline

Activity: 1946
Merit: 1006


Bitcoin / Crypto mining Hardware.


View Profile
October 09, 2013, 09:51:25 AM
 #3

Looks like the instructions need to be bought from the store.

 Is the transistor a FET ? those are a bit difficult to debug. what voltage are you supplying? how did u tune the output frequency?

Revewing Bitcoin / Crypto mining Hardware.
SpaceJelly
Member
**
Offline Offline

Activity: 106
Merit: 10



View Profile
October 09, 2013, 11:04:26 AM
 #4

"only works when you tap it?"

Sounds like a cold or dry joint to me... http://en.wikipedia.org/wiki/File:Cold_solder_joint2.jpg

http://en.wikipedia.org/wiki/Soldering#Soldering_defects

Fairly easy to resolve, just see if you can spot the problem joint and re-solder it.

1Je11yL4Fqw5nvaP6KUs2JDABBp29vKeEU
1JeLLyv8o7YwooSg53qEdDSPXeAT3ShQoc
Justin00 (OP)
Legendary
*
Offline Offline

Activity: 910
Merit: 1000


★YoBit.Net★ 350+ Coins Exchange & Dice


View Profile
October 09, 2013, 12:30:09 PM
 #5

when i say only works when you tap it, i mean if you tap it, you can hear a tapping noise through the radio..but nothing is picked up through the microphone which is the problem.

Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!