Bitcoin Forum
August 19, 2018, 10:02:49 PM *
News: Latest stable version of Bitcoin Core: 0.16.2  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: trying to make fm transmitter.. need some electrical type person to assist pleas  (Read 791 times)
Justin00
Legendary
*
Offline Offline

Activity: 910
Merit: 1000


★YoBit.Net★ 350+ Coins Exchange & Dice


View Profile
October 09, 2013, 06:16:50 AM
 #1

.

1534716169
Hero Member
*
Offline Offline

Posts: 1534716169

View Profile Personal Message (Offline)

Ignore
1534716169
Reply with quote  #2

1534716169
Report to moderator
1534716169
Hero Member
*
Offline Offline

Posts: 1534716169

View Profile Personal Message (Offline)

Ignore
1534716169
Reply with quote  #2

1534716169
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1534716169
Hero Member
*
Offline Offline

Posts: 1534716169

View Profile Personal Message (Offline)

Ignore
1534716169
Reply with quote  #2

1534716169
Report to moderator
1534716169
Hero Member
*
Offline Offline

Posts: 1534716169

View Profile Personal Message (Offline)

Ignore
1534716169
Reply with quote  #2

1534716169
Report to moderator
1534716169
Hero Member
*
Offline Offline

Posts: 1534716169

View Profile Personal Message (Offline)

Ignore
1534716169
Reply with quote  #2

1534716169
Report to moderator
TheButterZone
Legendary
*
Offline Offline

Activity: 2226
Merit: 1008


Pay with SegWit!


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: 1722
Merit: 1000


Mining hardware dev and reviewer.


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?

Looking to review 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
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:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!