| Author |
Message |
    
Johhn
Junior Member
Username: Johhn
Post Number: 18
Registered: 8-2007
| | Posted on Sunday, August 26, 2007 - 11:42 am: | 
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Barjan noise chopper cuts out celing fan noise.
cuts flat screen T.V. & computer screen hum.
Best for the buck.. johhn CEF 938 |
Tech808
Moderator
Username: Tech808
Post Number: 14330
Registered: 8-2002
| | Posted on Sunday, August 26, 2007 - 11:51 am: |
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Copper Forum Member's,
Below is what Johhn is talking about. 
CLICK HERE > Barjan NC100 "Noise Chopper"
Lon ~ Tech808 ~ N9CEF
CEF#808 ~ CEF HAM#33 ~ CVC#002
Tech808@copperelectronics.com
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Johhn
Junior Member
Username: Johhn
Post Number: 20
Registered: 8-2007
| | Posted on Sunday, August 26, 2007 - 12:00 pm: |
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Thank's LON johhn |
Bruce
Senior Member
Username: Bruce
Post Number: 4497
Registered: 9-2003
| | Posted on Monday, August 27, 2007 - 4:21 am: |
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Barjan NC100 ?
Hummmmm ......
I wonder how it works ?
Back in the 50's-60's a form of noise blanking was used on UHF by feeding noise to diodes that shorted the antenna during a pluse.
As the man once said VERRRY INTERESTING ......
I/m always looking to improve my receivers If you can't hear them you can't work them.
Bruce
On 6 since 66
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Johhn
Junior Member
Username: Johhn
Post Number: 28
Registered: 8-2007
| | Posted on Friday, August 31, 2007 - 8:45 pm: |
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Bruce; The noise chopper work's between 24-30mhz.
It will handle 50 watts max. I use it between my
radio & amp.. Now inside it has 4-clear diodes -
with red stripes,hooked too the center lead of the switch.The max cut of the switch has 2 small transistors with there centers (leg)
cut off & 2-diodes.all paralell.$19.99 buy one. |
Johhn
Junior Member
Username: Johhn
Post Number: 29
Registered: 8-2007
| | Posted on Friday, August 31, 2007 - 8:51 pm: |
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It did not come with a wiring diag. So
like so many things in are hobby if it works.
It works for me. johnmtx412@ aol.com
You will only find this at COPPER. |
Bruce
Senior Member
Username: Bruce
Post Number: 4500
Registered: 9-2003
| | Posted on Saturday, September 01, 2007 - 5:51 pm: |
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Sounds like the UHF ones we used back in the 60's diode clipper cuting off at about .3 volts.
A simple amp brought that down to .03 volts to cut into heave line noise. SIMPLE gagget ....
I remember it had some effect same as a simple noise blanker .... but everybit helps .....
My noise blanker / dsp limiting seems to get the job done but if i get time ill dig up that old ckt and build one just to see how it looks on a 40 year newer receiver ....
On 6 since 66
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Tech808
Moderator
Username: Tech808
Post Number: 17144
Registered: 8-2002
| | Posted on Monday, October 05, 2009 - 6:28 pm: |
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Copper Part #V10-06088
Diesel CB Noice Suppressor
[V10-06088] $19.99
In-Line "Noise Clipper", Removes source noise
Improves dynamic range
Reduces noise received at the input of radio
Receives more signal with less noise.
I personally Use it, I Love it and I Recommend it for Base and/or Mobile use.
Lon~Tech808
N9CEF
CEF#808~CVC#002
Radio Enthusiast!
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Drifter_8291
Junior Member
Username: Drifter_8291
Post Number: 30
Registered: 10-2004
| | Posted on Thursday, January 07, 2010 - 11:52 pm: |
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Hi
Does this item work the same as the RF gain control on a radio or does it do something different? Thanks drifter8291 |
Tech808
Moderator
Username: Tech808
Post Number: 17353
Registered: 8-2002
| | Posted on Friday, January 08, 2010 - 12:14 pm: |
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Sorry but No.
It is a:
In-Line "Noise Clipper", Removes source noise
Improves dynamic range
Reduces noise received at the input of radio
Receives more signal with less noise.
Hope this help's,
Lon~Tech808
N9CEF
CEF#808~CVC#002
Radio Enthusiast!
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Keithinatlanta
Advanced Member
Username: Keithinatlanta
Post Number: 861
Registered: 3-2003
| | Posted on Thursday, March 18, 2010 - 2:18 pm: |
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Hey Lon, do you think this might get rid of some of the white noise on my Uniden PC 68 with weather bands?
Keith in Atlanta
CEF 150 |
Tech808
Moderator
Username: Tech808
Post Number: 17514
Registered: 8-2002
| | Posted on Thursday, March 18, 2010 - 3:22 pm: |
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Keith,
Good to hear from you again.
Hope things are going well with you & your's.
In answer to your Question the answer is Yes.
And make sure your radio is grounded to the car frame and power is direct from battery.
Lon~Tech808
N9CEF
CEF#808
Radio Enthusiast!
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Dale
Senior Member
Username: Dale
Post Number: 1551
Registered: 12-2002
| | Posted on Thursday, March 18, 2010 - 5:58 pm: |
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what about transformer noise.i getting 1-3 s units of noise.i get this at 1/10th of a mile
from my driveway in mobile
dale/a.k.a.hotrod
cef426
cvc#64
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Tech808
Moderator
Username: Tech808
Post Number: 17518
Registered: 8-2002
| | Posted on Friday, March 19, 2010 - 3:38 pm: |
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Dale,
On that I honestly do not know as I have never experienced that type of problem.
Is your radio & antenna grounded to a single point ground on the truck frame?
Sorry I cannot be of more help.
Lon~Tech808
N9CEF
CEF#808
Radio Enthusiast!
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Keithinatlanta
Advanced Member
Username: Keithinatlanta
Post Number: 863
Registered: 3-2003
| | Posted on Tuesday, March 30, 2010 - 8:36 pm: |
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Hey Lon, Thanks. By the way, I hope you are doing better. Please tell your bride hello for me.
I guess if I decide to put that radio in my car, I will get one. Copper stills carries this correct? Thanks.
Keith in Atlanta
CEF 150 |
Tech808
Moderator
Username: Tech808
Post Number: 17545
Registered: 8-2002
| | Posted on Wednesday, March 31, 2010 - 8:15 pm: |
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Keith,
Yes Copper Still carries them.
V10-06088 Diesel CB Noice Suppressor
[V10-06088] $19.99
In-Line "Noise Clipper", Removes source noise
Improves dynamic range
Reduces noise received at the input of radio
Receives more signal with less noise
CLICK HERE > Diesel CB Noice Suppressor
Lon~Tech808
N9CEF
CEF#808
Radio Enthusiast!
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