[1000mp] BHI DSP Modules for 1000mp Radios
W4LDE-Ron
w4lde at cfl.rr.com
Tue Jan 9 18:34:44 EST 2007
Mike,
I guess it would not help in the digital communications world or CW?
Have you used it in any digital modes or on CW? I have the type of
computer trash noise that this unit would help eliminate but I wish it
could function on CW and some of the digital modes. Maybe there's
someone who could comment about it.
Ron W4LDE
Mike Schatzberg wrote:
>2 Icom 756 Pro Radios to be given away to QSL/QTH .NET supporters! One on Dec 31 and one on Jan 31.
>See http://mailman.qth.net for details.
>______________________________________________________________
>
>Hello Win:
>
>This module is really for SSB mainly. It actually will attenuate
>heterodynes somewhat, and that is certainly problematic for CW. It is also
>helpful for AM.
>
>The system is active DSP. This means that the algorithms sample the AF
>signal, and this may take a second or so, depending upon your levels and
>conditions. During the sampling, the noise reduction isn't working to its
>fullest potential.
>
>Once the noise reduction has settled, the results are really excellent, with
>no reduction in voice quality.
>
>73,
>
>Mike
>W2AJI
>
>
>----- Original Message -----
>From: "Win" <w0lz at winlyn.us>
>To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
>Sent: Tuesday, January 09, 2007 8:49 AM
>Subject: Re: [1000mp] BHI DSP Modules for 1000mp Radios
>
>
>
>
>>2 Icom 756 Pro Radios to be given away to QSL/QTH .NET supporters! One on
>>
>>
>Dec 31 and one on Jan 31.
>
>
>>See http://mailman.qth.net for details.
>>______________________________________________________________
>>
>>Works well for most SSB noise situations. I use it every day. It is one
>>
>>
>of
>
>
>>those things that, once you have, you can't do without. The attack time is
>>too slow for CW QSK but it can be used in come cases to monitor CW down in
>>the noise.
>>
>>Win, W0LZ
>>
>>
>>----- Original Message -----
>>From: "Mike Schatzberg" <cherokeehillfarm at earthlink.net>
>>To: <1000mp at mailman.qth.net>
>>Sent: Monday, January 08, 2007 10:44 PM
>>Subject: Re: [1000mp] BHI DSP Modules for 1000mp Radios
>>
>>
>>
>>
>>>2 Icom 756 Pro Radios to be given away to QSL/QTH .NET supporters! One
>>>
>>>
>on
>
>
>>>Dec 31 and one on Jan 31.
>>>See http://mailman.qth.net for details.
>>>______________________________________________________________
>>>
>>>Hi Howard:
>>>
>>>Thanks for the input. I'm glad your results have been similar to mine,
>>>
>>>
>we
>
>
>>>use the identical algorithms in the BHI devices.
>>>
>>>Another way of looking at the need for the improvement, is to ask the
>>>question, "how many operators use the audio DSP" in their Mark V?
>>>
>>>The input I have received on that question is also interesting, with
>>>
>>>
>most
>
>
>>>stating that they do not use it at all. My personal experience is that
>>>
>>>
>it
>
>
>>>reduces the noise, and significantly reduces the intelligibility of
>>>recovered speech, so that it is useless on weak signals.
>>>
>>>73 and Happy DXing,
>>>
>>>Mike
>>>W2AJI
>>>1000mp-owner at mailman.qth.net
>>>
>>>----- Original Message -----
>>>From: "Howard Klein" <howk2 at hotmail.com>
>>>To: <1000mp at mailman.qth.net>
>>>Cc: <cherokeehillfarm at earthlink.net>
>>>Sent: Monday, January 08, 2007 11:15 PM
>>>Subject: RE: [1000mp] BHI DSP Modules for 1000mp Radios
>>>
>>>
>>>
>>>
>>>>Hi Mike,
>>>>As you may recall from a past E-mail, I purchased a similar module made
>>>>by
>>>>BHI but sold by GAP under the model name Hear IT. I have had mine for a
>>>>couple months in line with an external speaker using a MarkV. It also
>>>>
>>>>
>has
>
>
>>>a
>>>
>>>
>>>>jack for earphone use. I always use it although it is possible to
>>>>
>>>>
>switch
>
>
>>>it
>>>
>>>
>>>>out of line. It does a tremendous job on 160 where I need it most. My
>>>>
>>>>
>>>model
>>>
>>>
>>>>besides the ability to switch it out off line allows adustment for
>>>>
>>>>
>input
>
>
>>>and
>>>
>>>
>>>>output and of course the degree of DSP filtering. A very worth while
>>>>addition.
>>>>Howard..K2HK
>>>>
>>>>----Original Message Follows----
>>>>From: Mike Schatzberg <cherokeehillfarm at earthlink.net>
>>>>Reply-To: All about Yaesu 1000mp <1000mp at mailman.qth.net>
>>>>To: 1000mp at mailman.qth.net
>>>>Subject: [1000mp] BHI DSP Modules for 1000mp Radios
>>>>Date: Mon, 08 Jan 2007 21:14:26 -0500
>>>>
>>>>
>>>>Hello 1000MP Fans:
>>>>
>>>>For several months now I have been enjoying the use of the BHI DSP
>>>>module,
>>>>the ANEM, with my Mark V.
>>>>
>>>>I have found it far superior to the on board audio DSP on my radio.
>>>>
>>>>Some time ago, I wrote a review of the module and posted it on my
>>>>website.
>>>>A later revision was accepted for publication by QST and should appear
>>>>
>>>>
>>>there
>>>
>>>
>>>>soon.
>>>>
>>>>Has anyone else tried one of the BHI modules? With which radio? How
>>>>
>>>>
>did
>
>
>>>it
>>>
>>>
>>>>perform?
>>>>
>>>>73 and Happy DXing,
>>>>
>>>>Mike
>>>>W2AJI
>>>>
>>>>
>>>http://home.earthlink.net/~cherokeehillfarm/id2.html
>>>
>>>______________________________________________________________
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>>>
>>>
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>>>
>>>
>>>
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>
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