Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old April 10th 05, 09:17 PM
 
Posts: n/a
Default 1 Watt FM transmitter: need help with buzz

I bought a one watt Ramsey FM transmitter to distribute whole house
audio .... it's overkill, I admit, but better too much power than to
little.

I don't don't know a ton about radio tech, so I thought I'd ask you
geniuses for advice.

I am getting a wicked buzz from the transmitter. You can hear it
plainly when I tune an FM receiver to the broadcast frequency when
there is no music being broadast. I called Ramsey, but they weren't the
most helpful (maybe because I'm so non-proficient in radio stuff).

Since my audio source was a computer, I considered the possibility that
there was RF coming out of the PC, or that there was a PC related
ground problem. So I tried using an iPod as the source, powered by
battery.

And to get even more anal about it, I powered the transmitter itself
from a car battery with the iPod attached.

Still the buzz. Arghhh.

Could it be my cabling? what is the absolute best way to insulate the
cables? Where can I buy such superinsulated beasts? I need a stereo
mini plug on one end and left/right rca jacks on the other.

I would be so grateful for advicce!

  #2   Report Post  
Old April 10th 05, 11:32 PM
Ken Taylor
 
Posts: n/a
Default

wrote in message
oups.com...
I bought a one watt Ramsey FM transmitter to distribute whole house
audio .... it's overkill, I admit, but better too much power than to
little.

I don't don't know a ton about radio tech, so I thought I'd ask you
geniuses for advice.

I am getting a wicked buzz from the transmitter. You can hear it
plainly when I tune an FM receiver to the broadcast frequency when
there is no music being broadast. I called Ramsey, but they weren't the
most helpful (maybe because I'm so non-proficient in radio stuff).

Since my audio source was a computer, I considered the possibility that
there was RF coming out of the PC, or that there was a PC related
ground problem. So I tried using an iPod as the source, powered by
battery.

And to get even more anal about it, I powered the transmitter itself
from a car battery with the iPod attached.

Still the buzz. Arghhh.

Could it be my cabling? what is the absolute best way to insulate the
cables? Where can I buy such superinsulated beasts? I need a stereo
mini plug on one end and left/right rca jacks on the other.

I would be so grateful for advicce!


Not sure what the transmitter is - is it a kit you put together or was it a
'black box' you just connect up and play with? Does it buzz with no input?
Or with just, say, a battery-powered transistor radio hooked up to the
input? How hard are you driving it - are you possibly over-driving the
input?

Frankly, it's over-kill to the extent of probably being illegal, but what
the heck, you're not near me. But if it wasn't a kit, take it back and make
them make it work.

Cheers.

Ken


  #3   Report Post  
Old April 11th 05, 03:37 AM
Hank Oredson
 
Posts: n/a
Default

Since the buzz is still there when you power it from a battery,
try removing all cables except power. Does it still buzz?
Is the battery connected to a charger?

--

... Hank

http://home.earthlink.net/~horedson
http://home.earthlink.net/~w0rli
wrote in message
oups.com...
I bought a one watt Ramsey FM transmitter to distribute whole house
audio .... it's overkill, I admit, but better too much power than to
little.

I don't don't know a ton about radio tech, so I thought I'd ask you
geniuses for advice.

I am getting a wicked buzz from the transmitter. You can hear it
plainly when I tune an FM receiver to the broadcast frequency when
there is no music being broadast. I called Ramsey, but they weren't the
most helpful (maybe because I'm so non-proficient in radio stuff).

Since my audio source was a computer, I considered the possibility that
there was RF coming out of the PC, or that there was a PC related
ground problem. So I tried using an iPod as the source, powered by
battery.

And to get even more anal about it, I powered the transmitter itself
from a car battery with the iPod attached.

Still the buzz. Arghhh.

Could it be my cabling? what is the absolute best way to insulate the
cables? Where can I buy such superinsulated beasts? I need a stereo
mini plug on one end and left/right rca jacks on the other.

I would be so grateful for advicce!



Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Auction ends in 1 hour! 2 Watt FM Stereo Broadcast 88-108 MHz LCDDigital PLL Transmitter righteous-jude Shortwave 14 November 16th 04 10:55 PM
Auction ends in 1 hour! 2 Watt FM Stereo Broadcast 88-108 MHz LCDDigital PLL Transmitter righteous-jude Swap 1 November 15th 04 11:21 PM
Auction ends in 1 hour! 2 Watt FM Stereo Broadcast 88-108 MHz LCDDigital PLL Transmitter righteous-jude Scanner 0 November 15th 04 03:19 AM
Auction ends in 1 hour! 2 Watt FM Stereo Broadcast 88-108 MHz LCDDigital PLL Transmitter righteous-jude Homebrew 0 November 15th 04 03:17 AM
For Sale: FM Stereo Broadcast Transmitter 88-108 MHz Digital PLLLCD Display - 2 Watt righteous-jude Homebrew 0 November 12th 04 09:05 AM


All times are GMT +1. The time now is 07:23 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017