[ICOM] Icom 7200 noise blanker

D C _Mac_ Macdonald k2gkk at hotmail.com
Wed Mar 13 16:30:15 EDT 2013


The blanker in my 706 Mk II is not very effective. 
The one in the 7000 is supposed to be much better. 
The one in my 746 was a bit better than the 706 Mk II.
The one in my new 7410 exceeds any I've ever had.
 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk at hotmail.com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 
 
 

 

> Date: Wed, 13 Mar 2013 13:14:50 -0700
> From: k4lxv at bellsouth.net
> To: icom at mailman.qth.net
> Subject: Re: [ICOM] Icom 7200 noise blanker
> 
> John: You may be better served by better informing yourself about noise 
> interference and how to detect and eliminate it from your home, instead 
> of having the receiver trying to take care of it. There are many avenues
> for noise to enter your receiver, and if you can find and prevent its 
> entry you will likely be much better and less costly served. There are 
> many tutorials regarding this subject on the internet. There will likely
> be more than just one solution, and you may have to implement several 
> in order to reduce your noise to a tolerable level. My own case of noise
> involved a noisy Satelight receiver, a DVD player power supply, and 
> bonding my rig, power supply and amplifier to a common strap and then to
> earth ground. Each step took an S7 background noise eventually to an 
> S3. It takes some work and effort to get there, but there is no magic 
> "noise blanker or noise reduction" circuit that will just take it all 
> down to nothing.
> Good Luck,
> Larry K4LXV
> 
> 
> --- On Wed, 3/13/13, John <af5cc at fidmail.com> wrote:
> 
> From: John <af5cc at fidmail.com>
> Subject: Re: [ICOM] Icom 7200 noise blanker
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Date: Wednesday, March 13, 2013, 3:42 PM
> 
> Tried them before.  Never could get them to do a whole lot
> 
> John AF5CC
> 
> On Wed, Mar 13, 2013 at 2:57 PM,  <w7apm at mtaonline.net> wrote:
> > A Timewave ANC-4 or maybe the MFJ 1025 or 1026 may be a better choice
> >
> > Good Luck
> > Marty
> >
> > --- af5cc at fidmail.com wrote:
> >
> > From: John <af5cc at fidmail.com>
> > To: ICOM Reflector <icom at mailman.qth.net>
> > Subject: [ICOM] Icom 7200 noise blanker
> > Date: Wed, 13 Mar 2013 13:52:24 -0500
> >
> > I have a really bad noise on 17m (and sometimes other bands) that
> > really makes it hard to hear signals at times.  It sounds like some
> > sort of electrical crud from consumer electronics, or something like
> > that.  It might be powerline noise, but I really don't think so.
> > Anyways, I know the best solution is to remove the source of the
> > noise, but that isn't always possible.
> >
> > I asked on eham.net about rigs with good NBs and the 7000 was
> > mentioned a couple of times, and then I remembered that the 7200 has
> > the same NB, I think.  After mentioning that one, a couple of hams
> > said the NB works pretty good.  It also is cheapter than the 7000 and
> > looks more rugged (important in my household).  Also, the eham.net
> > reviews on the 7200 would mention the NB as well.  So, is it really as
> > good as people say?  Is the 7200 a pretty good rig overall for the
> > price?
> >
> > Any suggestions or experiences would be most welcome!
> >
> > John AF5CC
> > ----
> > Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> > Icom Users Net: Sundays, 1700Z, 14.316 MHz
> > Icom FAQ: http://www.qsl.net/icom/
 		 	   		  


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