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Re: [TenTec] Orion noise blanker

To: Carl Moreschi <n4py@earthlink.net>,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Orion noise blanker
From: jerome schatten <romers@shaw.ca>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 17 Mar 2005 22:38:57 -0800
List-post: <mailto:tentec@contesting.com>
Carl:

Does the Orion's NB unblank the noise in the presence of a signal outside 
but near the passband of the rx (every NB I've had does this)?  i.e. When 
listening to a CW signal, say,  under pulse noise conditions, and there are 
no other sigs present on the band, the blanker is totally effective; but if 
another signal is present, in or close to the passband, the nearby sig 
modulates the noise when the NB is on?

Best,
va7vv

----- Original Message ----- 
From: "Carl Moreschi" <n4py@earthlink.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Thursday, March 17, 2005 6:01 PM
Subject: Re: [TenTec] Orion noise blanker


>I agree, the Orion hardware noise blanker is the best I have seen.
>
> Carl Moreschi N4PY
> Franklinton, North Carolina
> n4py@earthlink.net
> ----- Original Message -----
> From: "K Van Horn" <k7ec@sbcglobal.net>
> To: <kg6tt@tomorrowsweb.com>; "Discussion of Ten-Tec Equipment"
> <tentec@contesting.com>
> Sent: Thursday, March 17, 2005 8:41 PM
> Subject: Re: [TenTec] Orion noise blanker
>
>
>> The Hardware NB on the Orion is Excellent!! The DSP blanker is effective,
>> but not as good as the Hardware Blankr!!
>>
>> The HW NB on Orion is better than the Omni 6+ NB here.
>>
>> Regards,
>>
>> Kirby, K7EC
>>
>> ----- Original Message -----
>> From: "Jerry Volpe" <kg6tt@tomorrowsweb.com>
>> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>> Sent: Thursday, March 17, 2005 7:36 PM
>> Subject: Re: [TenTec] Orion noise blanker
>>
>>
>> > The Orion is still on my 'possible' new rig list and I am very curious
>> > about its noise blanker functionality.
>> >
>> > I live in a very troublesome location for electrical and pulse 
>> > generated
>> > noise. There have been times when I have had to deal with a solid
>> > blanket of noise from 3 to 300 MHz. Fortunately after several years 
>> > work
>> > and complaints PG&E has repaired a number of my noise sources. However,
>> > during this process I discovered the value of a good discrete component
>> > (IF) noise blanker.
>> >
>> > I owned a Jupiter and I still have an RX-350 which both supposedly had
>> > noise blankers, however both were totally useless to me. The noise
>> > reduction functionality helped somewhat but overall I had to rely on my
>> > 23 year old Omni-C which had a noise blanker that 'worked' for me. 
>> > Under
>> > typical situations it could knock the noise from 20 dB over 9 to S-4.
>> > Eventually I gave up on the Jupiter and traded it for an Omni-VI+ which
>> > has a supperb noise blanker. Then I added a Paragon which had a very
>> > effective noise blanker as well but not equal to the Omni-VI+. Why even
>> > my two Scouts have noise blankers that function nicely. Sooooooo what
>> > about the Orion? does it have two noise blankers? One in DSP and one in
>> > the IF itself?
>> >
>> > My noise here is typical of electrical arc sources. Sometimes the 
>> > pulses
>> > are fairly spaced out so that even though they sound just as broadband
>> > even my TD-940S noise blanker does a great job.... other times that
>> > noise is so intense that even my best noise blanker is only able to
>> > marginally impact it.
>> >
>> > So, Orion owners... I am not asking how you would re-engineer the
>> > Orion... just do you have noise issues at your location and if you do
>> > how effective do you find the Orion in dealing with it?
>> >
>> > 73,
>> > Jerry, KG6TT
>> > _______________________________________________
>> > TenTec mailing list
>> > TenTec@contesting.com
>> > http://lists.contesting.com/mailman/listinfo/tentec
>> >
>>
>>
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