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Re: [TenTec] notch filter for Eagle?

To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Subject: Re: [TenTec] notch filter for Eagle?
From: "rick@dj0ip.de" <Rick@DJ0IP.de>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 21 Jul 2017 08:10:18 +0200
List-post: <mailto:tentec@contesting.com>
A.M.E.N.

IT IS TIME TO CLEAN UP OUR FILTHY TRANSMITTERS!

73
Rick, DJ0IP


-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Greg S via 
TenTec
Sent: Friday, July 21, 2017 12:16 AM
To: Discussion of Ten-Tec Equipment
Cc: Greg S
Subject: Re: [TenTec] notch filter for Eagle?

  
  

 I personally wish, now that nearly ALL new rigs have more receiver performance 
than most hams will ever use, that Rob would remove his receiver list, and 
change it to a TRANSMITTER performance shootout list......can I get an Amen???
  

  
  
Greg, KC8HXO   
  
  
>   
> On Jul 20, 2017 at 17:54,  <rick@dj0ip.de (mailto:rick@dj0ip.de)>  wrote:
>   
>   
>   
>  Dave, That is only because Rob Sherwood worked long and hard on Ten-Tec and 
> FLEX to fix their problems. When they originally shipped, neither were any 
> good at blanking electric fences. We all owe Rob a huge amount of gratitude 
> for the many years of service he has given us. 73 Rick, DJ0IP -----Original 
> Message----- From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of 
> David W LeJeune, Sr Sent: Thursday, July 20, 2017 9:48 PM To: 'Discussion of 
> Ten-Tec Equipment' Subject: Re: [TenTec] notch filter for Eagle? I have an 
> electrical fence next door. Both the noise blanker in my Orion II and the one 
> in my Flex 6500 easily take out that type of noise as well as ignition noise. 
> The Orion has a manual notch filter (sort of). It's really a fixed freq notch 
> at either 300 hz or 1050 hz. You can use that with CW and the RIT - move the 
> interfering hetrodyne inside of the selected notch. Of course, you have to 
> accept the change in the pitch of the CW signal. Dave WN5V -----Original 
> Message----- From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of 
> rick@dj0ip.de Sent: Thursday, July 20, 2017 9:36 AM To: 'Discussion of 
> Ten-Tec Equipment' Subject: Re: [TenTec] notch filter for Eagle? Gary, Your 
> Pro 2 of course is ancient history now. Was a great radio in its day. Manual 
> notch filters are fine on CW because "we" use our brain to notch the 
> disturbance and not the desired frequency. The auto-notch can't tell the 
> difference. Regardless of what it can and can't do, if it dies, you probably 
> won't even get spare parts for it. And brand new radios are no longer coming 
> with manual notch filters (except for the old stock sitting on shelves and 
> being offered at dumping prices to get rid of it). If my memory serves me 
> right, that was still one of the radios with a useful noise blanker for 
> blanking out electrical fences. None of the new DSP noise blankers can do 
> that as well as the old noise blankers. There certainly were advantages in 
> the older radios  but we will probably only see one more new radio come out 
> in Japan with that old technology...at the end of this year. I don't know if 
> Mike will bring out an Eagle or Omni VII again. The eagle has a good noise 
> blanker, the OM7 has a DSP blanker, but it has been improved in firmware for 
> use near electrical fences; still not as good as older technology though. 
> Ones step forward, two steps back! (hi) 73 Rick -----Original Message----- 
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Dukes HiFi 
> Sent: Thursday, July 20, 2017 4:03 PM To: Discussion of Ten-Tec Equipment Cc: 
> Bernie Skoch Subject: Re: [TenTec] notch filter for Eagle? In side-by-side 
> comparison, an Icon IC-756 Pro2 notch filter versus an Orion/Eagle type notch 
> filter, using my Pro 2 manual notch filter (which also works in CW, and is 
> inside the AGC loop), I can hear weak but desired signals far more easily 
> with the otherwise inferior Pro 2 than I can with the otherwise superior 
> Orion/Eagle. This is especially true when the offending carrier is keyed, 
> since the Pro 2 receiver is not constantly adjusting gain to compensate for 
> the keyed offending carrier. One can SORT of obtain similar results by 
> turning off the AGC in the Orion/Eagle when using the notch filter as long as 
> you don’t need any AGC action. Gary  >  On Jul 20, 2017, at 8:34 AM, Bernie 
> Skoch via TenTec wrote:  >   >  Rick,  >   >  I do not believe I am "out in 
> right field."  >   >  Someone commented that all Ten Tec notch filters are 
> useless. I disagreed.  >   >  73,  >  Bernie  >   >>  On Jul 20, 2017, at 
> 02:30, rick@dj0ip.de wrote:  >>   >>  You guys are all out in right field.  
> >>   >>  No radio's auto notch filter works in CW mode.  >>  They cannot 
> distinguish between the useful tone and the disturbing tone.  >>   >>  And 
> yes, in that case, a manual notch filter is indeed better, but  >>  show me a 
> radio built today that has one.  >>   >>  I find the Eagle's notch filter 
> effective on SSB.  >>   >>  73  >>  Rick, DJ0IP  >>   >>  -----Original 
> Message-----  >>  From: TenTec [mailto:tentec-bounces@contesting.com] On 
> Behalf Of  >>  Bernie Skoch via TenTec  >>  Sent: Thursday, July 20, 2017 
> 3:21 AM  >>  To: Discussion of Ten-Tec Equipment  >>  Cc: Bernie Skoch; 
> w2iy@verizon.net  >>  Subject: Re: [TenTec] notch filter for Eagle?  >>   >>  
> "It's sort of useless, like all Ten Tec notch filters..."  >>   >>  I _LOVE_ 
> my Orion II notch filter!  >>   >>  The automatic feature is good, but the 
> manual one is about the best  >>  I've ever used.  >>   >>  73,  >>  Bernie  
> >>   >>>  On Jul 19, 2017, at 16:33, Gary F wrote:  >>>   >>>  The Eagle does 
> have a notch function. I don't recall how to activate  >>>  it  >>  but it is 
> in the manual.  >>>   >>>  It's sort of useless, like all Ten Tec notch 
> filters, since it is  >>>  outside  >>  the AGC loop, so, while it does not 
> have the carrier, it also  >>  attenuated your desired signal by about as 
> much as it reduces the carrier.  >>>   >>>  The reduction to 20 watts in Tune 
> is self-defense. Orion's do it  >>>  too. This  >>  is to prevent the 
> presence of full 100 watts into a mismatch. It is  >>  good policy.  >>>   
> >>>  Orion's had an option in which you could press the Power button, I  >>  
> believe, to get 100 watts in Tune after match had been reached.  >>>   >>>  
> Red arid green the A//B VFO, there really is no A or B VFO in the  >>  
> traditional sense and Eagle only has one tuning knob. Therefore, the  >>  A/B 
> indicator serves no function in transceive operation. In split  >>  
> operation, that indicator should flip when going fro RX to TX to tell  >>  
> you which displayed frequency is the TX frequency.  >>>   >>>  Gary  >>>   
> >>>  Sent from my iPad  >>>   >>>>  On Jul 19, 2017, at 3:05 PM, Michael 
> Tortorella wrote:  >>>>   >>>>  Hi all, I am hearing an awful lot of steady 
> carrier signals up here  >>>>  in  >>  the  >>>>  frozen north of Downeast 
> Maine. Most are not very strong and they go  >>  away  >>>>  when I 
> disconnect the antenna so they are external to the radio.  >>>>  Today I am 
> chasing TR8CA on 20 CW, he is way down in the noise, and  >>>>  100 Hz away 
> from one of these carriers. Sure would be nice to have  >>>>  something like 
> a notch filter to help in situations like these but  >>>>  I could not see 
> anywhere in the manual or front panel where I could  >>>>  notch the 
> offending carrier. Is there any list wisdom on this?  >>>>   >>>>   >>>>   
> >>>>  On another note, I did contact service at TT last week with my  >>>>  
> question about power out in autotune; after only a few days delay I  >>>>  
> got an answer that the power out in autotune is 20 watts even  >>>>  though 
> the power output shown on the display is 100. This seems  >>>>  not quite 
> right from a human factors point of view, maybe there can  >>>>  be a 
> firmware fix? Also, when exchanging VFOs, the A,B labels do  >>>>  not change 
> even when the B vfo is in large type at the top of the  >>>>  display. I find 
> this confusing. OK, I guess this turned into a  >>>>  longer letter about a 
> couple of other things besides notch  >>>>  filtering, so please excuse my 
> prolixity and thank for the BW. Any  >>>>  suggestions  >>  appreciated.  
> >>>>   >>>>  Thanks and 73, Mike W2IY  >>>>   >>>>   >>>>   >>>>  ---  >>>>  
> This email has been checked for viruses by AVG.  >>>>  http://www.avg.com  
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