[ICOM] Icom 7200 noise blanker

[Phil Krichbaum]

    The 706 rigs were well known for a poor noise blanker and I had 
several of them. The NR feature of the MKII DSP was somewhat effective 
against ignition noise while mobile. I have one of the Heil noise 
canceling headsets (no longer made) that worked quite well with the 706 
while mobile in motion as it really cut into the background vehicle 
noise. In many states it is not legal to drive while wearing a headset 
but apparently rarely enforced from what I see with all the people 
listening to their "tunes" or cell etc while driving with ear buds. I 
used to teach skiing and would see people skiing with ear buds and no 
way could they hear the out of control skier coming up behind them 
yelling  "Oh shit" or "lookout"! I was told in Canada it was illegal to 
ski with your tunes on which is probably a good idea. I used the Heil 
while a passenger in the back seat!
    Phil N0KE

D C _Mac_ Macdonald wrote:
> 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.) * 
> * * * * * * * * * * * 
>  
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>> 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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