Yes, there's lots of room inside the TRITON. I really take advantage of the PBT
and notch on the Corsair with heavy QRM...if my damnable noise isn't present,
which is why I was focusing on improving the Corsair's NB. The TRITON is great
for late-nite DX'ing when QRM's not heavy, but with weekend QRM/traffic, the
Triton just can't cope as well as the Corsair with it's PBT and notch (and two
8-pole filters).
73,
Allen---W7GIF
----- Original Message -----
From: Rick - DJ0IP / NJ0IP<mailto:Rick@DJ0IP.de>
To: 'Discussion of Ten-Tec Equipment'<mailto:tentec@contesting.com>
Sent: Monday, February 03, 2014 3:15 PM
Subject: Re: [TenTec] Corsair noise blanker and frequency display
YES, that is the correct link.
I just downloaded the file.
Tnx Barry!
73 - Rick, DJ0IP
(Nr. Frankfurt am Main)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Barry N1EU
Sent: Monday, February 03, 2014 11:01 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Corsair noise blanker and frequency display
The article was in QST Sept 1981. This might be the link to the article on
adding the filter (ARRL member's only):
http://p1k.arrl.org/pubs_archive/74970<http://p1k.arrl.org/pubs_archive/74970>
Barry N1EU
On Mon, Feb 3, 2014 at 9:51 PM, Barry N1EU
<barry.n1eu@gmail.com<mailto:barry.n1eu@gmail.com>> wrote:
> There was an article in QST a while back (early 80's ?) about adding
> 9MHz Ten-Tec filters externally to the Triton.
>
> 73, Barry N1EU
>
> On Mon, Feb 3, 2014 at 9:28 PM, Rick - DJ0IP / NJ0IP
<Rick@dj0ip.de<mailto:Rick@dj0ip.de>>
wrote:
>> Allen, why don't you add some selectivity to the Triton.
>> I did it to the Argonaut 505 and 509 so there is certainly room to do
>> it to the Triton.
>>
>> In my case I replaced the Argonaut's 4-pole discrete Xtals filter
>> (SSB) with a KVG 8-pole Xtal filter, then added a 6-pole 500 Hz
>> filter in series with it. I used on out of an early Yaesu
>> transceiver. This, together with the standard audio filter gave the rig
excellent selectivity.
>>
>> 73 - Rick, DJ0IP
>> (Nr. Frankfurt am Main)
>>
>>
>> -----Original Message-----
>> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of A R
>> Sent: Monday, February 03, 2014 8:00 PM
>> To: Discussion of Ten-Tec Equipment
>> Subject: Re: [TenTec] Corsair noise blanker and frequency display
>>
>> Bob,
>> Yeah, the random number generator on the display is the display
>> itself. The frequency itself is rock-solid, and after one minute, the
>> display homes in on the actual frequency.
>>
>> Having struggled with a variety of ineffective nb's on several
>> high-tech transceivers that were unable to cope with my noise, I was
>> really impressed by the TRITON's ability to eliminate the noise. If
>> only the TRITON had the selectivity of the Corsair, or the Corsair
>> had the NB effectiveness of the TRITON, I'd be a real happy camper.
>> An outboard ANC-4 noise canceller works pretty well most of the time,
>> but the Triton's nb works all the time, without having to fiddle with
>> tuning adjustments, and I hate using outboard band-aids. I'm looking
>> seriously at adapting the Triton 249 NB into the Corsair.
>>
>> 73,
>> Allen--W7GIF
>> ----- Original Message -----
>> From: Bob McGraw -
K4TAX<mailto:RMcGraw@Blomand.net<mailto:RMcGraw@Blomand.net>>
>> To: Discussion of Ten-Tec
Equipment<mailto:tentec@contesting.com<mailto:tentec@contesting.com>>
>> Sent: Monday, February 03, 2014 11:30 AM
>> Subject: Re: [TenTec] Corsair noise blanker and frequency display
>>
>>
>> I wonder if this is a display issue or are the oscillators actually
>> changing
>> frequency and same is being displayed. I have an older radio, non
>> Tentec,
>>
>> that when first turned on the display looks more like the lights on a
>> pinball machine. The oscillators are moving as well as the display
>> reference frequency. It is a real hoot to watch for about the first 30
>> minutes or so then it finally settles down.
>>
>> As to noise blankers, historically I've found only a very few really
good
>> noise blankers and at that same time there's a lot of noise
>> blankers. The
>>
>> Collins variable blanking bandwidth system seems to always be the best.
>> The
>> rest are mostly copies and less effective compromises. Of recent, the
>> hardware NB as used in the Eagle is one of the better systems. One
>> factor
>>
>> that seems to impact the effectiveness is more related to where the
>> blanking
>> takes place as related to the AGC system. And as Rob Sherwood
concluded,
>> the AGC has a notable effect on pulse type noise.
>>
>> 73
>> Bob, K4TAX
>>
>>
>>
>>
>> ----- Original Message -----
>> From: "k6jek"
<k6jek@comcast.net<mailto:k6jek@comcast.net<mailto:k6jek@comcast.net%3Cmailto:k6jek@comcast.net>>>
>> To: "Discussion of Ten-Tec Equipment"
>>
<tentec@contesting.com<mailto:tentec@contesting.com<mailto:tentec@contesting.com%3Cmailto:tentec@contesting.com>>>
>> Sent: Monday, February 03, 2014 12:14 PM
>> Subject: Re: [TenTec] Corsair noise blanker and frequency display
>>
>>
>> > FWIW my Corsair does exactly the same thing on both counts.
>> >
>> > On Feb 3, 2014, at 9:12 AM, A R wrote:
>> >
>> >> I received my newly acquired Corsair (not II), s/n 718, and have a
>> >> couple of questions:
>> >>
>> >> At cold start-up in the morning, it takes about a minute for the
>> >> displayed frequency to stabilize and display the actual frequency.
>> During
>> >> that warm-up minute, all the display digits are toggling
>> "randomly". Is
>>
>> >> this a common issue with the Corsairs? Is there a remedy?
>> >>
>> >> The noise blanker is ineffective with respect to eliminating or even
>> >> noticeably reducing powerline-generated noise that my TRITON noise
>> >> blanker completely eliminates. Again, is this a common issue with
the
>> >> Corsairs. If so, has anyone developed a modification that improves
the
>> >> effectiveness of the NB? The TRITON's NB is so effective in
>> eliminating
>>
>> >> at least the noise that plagues me, I'd sure like to get the same NB
>> >> effectiveness out of the Corsair. The NB's of the TRITON and
>> Corsair are
>> >> architecturally the same (signal flow and conditioning), so if the
>> >> Corsairs have characteristically ineffective noise limiters, my
>> >> powerline-generated noise is enough of an operating problem,
>> that I would
>> >> even entertain adapting the TRITON's NB to the Corsair....as a last
>> >> resort.
>> >>
>> >> Allen------W7GIF
>> >> _______________________________________________
>> >> TenTec mailing list
>> >>
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>> >>
>>
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>> com/mailman/listinfo/tentec>
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>> > _______________________________________________
>> > TenTec mailing list
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