[TenTec] notch filter for Eagle?

rick@dj0ip.de Rick at DJ0IP.de
Thu Jul 20 03:30:13 EDT 2017

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.

Rick, DJ0IP

-----Original Message-----
From: TenTec [mailto:tentec-bounces at 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 at 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.


> On Jul 19, 2017, at 16:33, Gary F <dukeshifi at comcast.net> 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
> 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 <w2iy at verizon.net> wrote:
>> Hi all, I am hearing an awful lot of steady carrier signals up here in
>> frozen north of Downeast Maine.   Most are not very strong and they go
>> 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
>> Thanks and 73, Mike W2IY
>> ---
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