Re: [K3] Noise Reduction Recording

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Re: [K3] Noise Reduction Recording

M0XDF
Sorry, should have said, its around S7 noise floor - I have that kind of
noise floor on all HF bands


On 25/02/2008 10:59, "Brett Howard" <[hidden email]> sent:

> At what S level is this noise that you are hearing?  To me that sounds
> quite pleasant and noise free.  But if that is what you're hearing and
> its at S9 then its a completely different story.
>
>
> On Mon, 2008-02-25 at 08:47 +0000, David Ferrington, M0XDF wrote:
>
>> I'm still having trouble determining if what I hear is noise that NB should
>> get rid of. This is because I'm a relatively new Ham without the experience
>> to know what I'm hearing.
>>
>> So I have made a recording on the noise and it is available from
>> <http://homepage.mac.com/davidferrington/FileSharing2.html>
>>
>> I have recorded 3.740MHz in 5 second tracks with a tone between each change
>> of NR setting, viz:
>>     5 seconds of no NR, 200mS tone @ 700Hz
>>     5 seconds of NR F1-1, 100mS tone at 1400Hz
>>     5 seconds of NR F1-2, 100mS tone at 1400Hz
>>     5 seconds of NR F1-3, 100mS tone at 1400Hz
>>     5 seconds of NR F1-4, 200mS tone at 700Hz
>>     5 seconds of NR F2-1, 100mS tone at 1400Hz
>>     etc.
>>
>> I have found no NB setting that affects this, I can possibly hear a very
>> slight change, but it does not cancel the noise.
>> I can do the same for the NB settings if people wish.
>>
>> I would appreciate some feedback on this please, is this just broadband hash
>> in my urban neighbourhood from er, broadband and wall warts etc?
>>
>> Mail me off list if you'd like me to mail you a copy of the file direct.
>>
>> 73 de M0XDF / K3 #174
>>

--
If you have the same ideas as everybody else but have them one week earlier
than everyone else then you will be hailed as a visionary. But if you have
them five years earlier you will be named a lunatic. -Barry Jones,
politician, author (1932- )


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