Copper Talk » Open Forum » Archived Messages » 2004 » 03/01/2004 to 03/31/2004 » NOISE GATE « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Bigbob
Senior Member
Username: Bigbob

Post Number: 1780
Registered: 12-2001
Posted on Saturday, March 20, 2004 - 10:18 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I'm real interested in one thats ready to run just hook to power put in line with audio and much less noise anybody know of one or more,want one real bad,Bigbob
Top of pagePrevious messageNext messageBottom of page Link to this message

Creator
Member
Username: Creator

Post Number: 61
Registered: 1-2004
Posted on Saturday, March 20, 2004 - 2:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I've sent you an email,

rob
Top of pagePrevious messageNext messageBottom of page Link to this message

Bigbob
Senior Member
Username: Bigbob

Post Number: 1784
Registered: 12-2001
Posted on Sunday, March 21, 2004 - 3:12 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I was hoping one is made for received audio,thanks anyway.Bigbob
Top of pagePrevious messageNext messageBottom of page Link to this message

707
Member
Username: 707

Post Number: 78
Registered: 5-2002
Posted on Monday, March 22, 2004 - 12:09 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

bigbob-

if you are looking for something to remove interference before it gets to your receiver, the MFJ-1026 might do the trick for you.

I just put one inline a couple of weeks ago for shortwave listening and it is an amazing piece of gear.

It can eradicate local dirty transformer noises and other types of local interference, and also tricks such as nulling out jamming signals and interfering adjacent stations.

One the other side, it can be used to provide additional gain by combining the noise sensing antenna with your regular receive antenna.

I read quite a few reviews, split about 50/50 pro/con, but I've found that either the cons must have not read the directions or they weren't using an appropriate noise antenna.

The really big test? I tried it on channel 6, the Superbowl, and was able to sort out all kinds of signals that were otherwise just part of a loud heterodyne.

It's worth taking a look.
Top of pagePrevious messageNext messageBottom of page Link to this message

Ozzie
Intermediate Member
Username: Ozzie

Post Number: 143
Registered: 11-2003
Posted on Monday, March 22, 2004 - 9:30 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

try a DSP filter. The ones Ive tested have been tremndous. Two signals almost on the same frequency, a little time spent in adjusting and viola no interference and only one signal audible.

I'm playing with a couple right now that are computer programs that use the soundcard as a DSP filter. Will post the results when I finish.
Top of pagePrevious messageNext messageBottom of page Link to this message

Crafter
Advanced Member
Username: Crafter

Post Number: 987
Registered: 12-2002
Posted on Monday, March 22, 2004 - 12:07 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have used those older radio shack dsp "notch filters" they work well for the money usually under 40.00 on e-bay. I have also used car stereo equalizers and tune out interference or bring voice level up.
Top of pagePrevious messageNext messageBottom of page Link to this message

707
Member
Username: 707

Post Number: 79
Registered: 5-2002
Posted on Monday, March 22, 2004 - 8:34 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

this one is fun to play with http://www.qsl.net/padan/spectran.html