I have loaded my buffer with text and keyed the rig at 100 wpm but it
sounds almost like a continuous tone in the sidetone. I'm wondering how
you could distinguish between the sidetone and someone breaking or
perhaps do you turn the sidetone off? Personally, I can't even think at
100 wpm and besides, I really don't have that much to say. Maybe that's
one reason I like cw so much. I do get paranoid without QSK however. I
also set facing the door in restaurants.
Steve
-----Original Message-----
From: "Tommy" <aldermant@alltel.net>
To: <tentec@contesting.com>
Date: Fri, 6 Aug 2004 11:02:16 -0400
Subject: Re: [TenTec] Orion QSK
> Lee
>
> OK...well maybe we both missed each others point. My response to you
> was
> about your remark to the affect that if someone is asking for a rig to
> work
> full QSK at 100 wpm, are they just 'bragging'. And my positive answer
> to
> that comment that you made is a definate NO.
>
>
> From: "Lee Crocker" <w9oy@yahoo.com>
>
>
> > Tommy
> >
> > I think you miss the point. My start with QSK radios
> > dates back to the Atlas 350xl, then to a Ten Tec Delta
> > then an FT-1000D, a Pegasus and now an Orion, and a
> > few home brew single banders in the mix. I have built
> > 6 amps, 2 using relay based QSK and 4 with pin diode
> > QSK, and worked out the timing circuits specifically
> > for each transceiver-amp combination, and made other
> > timing circuits to allow proper sequencing using the
> > NIR-10 NIR-12 and 599 timewave DSP. This often
> > amounts to going inside the radio and analyzing what
> > is the correct signal to use to key on, and it often
> > is not the same signal as the manufacturer provides at
> > the open collector at jack on the back of the radio.
>
> My first full QSK rig was a Viking 2 and Thunderbolt amp, with a
> Heathkit
> SB-303 reciever. And on through the Corsair 3, Icom IC-781, FT-1000MP
> (ugh!), Omni 6, Omni 6 Plus, and the Orion. I also tried my hand at
> designing some QSK circuitry, but quickly found you would be hard
> pressed to
> beat or even match the Corsair 2 type full QSK.
> >
> >
> > This was as much out of an interest in playing with
> > this circuitry as it was actually using the rig to
> > operate. In other words I was enjoying building the
> > rig and understanding the limitations of the rig, as
> > much as driving the rig. I do not operate at 100wpm,
> > but I do listen (and have for years) to you all around
> > 7033. I can copy around 45 to 50 and can send
> > accurately around 35. I have friends who can do 100
> > wpm and been in their shacks while operating those
> > speeds so I don't have the slightest doubt 100 wpm is
> > a totally do-able speed. My old boss, a commercial CW
> > op says he can do 120 in bursts and I don't doubt his
> > word for a second.
> >
> > The issue is given the advent of software defined
> > radio, how important to the overall operation of the
> > system resources should be devoted to 100 0r 150 wpm
> > QSK? I think this is a legitimate question. Given
> > always limited computing resources, where does QSK
> > fall in the economy of the system design?
>
> With the advent of SDR radios, full QSK at speeds much over 40 or 50
> wpm is
> moot. It's just not going to happen!! Example: Omni 6 max CW speed =
> 68wpm;
> Omni 6 Plus max CW speed = <60 wpm, Orion max CW speed = <60 wpm, Icom
> IC-7800 max CW speed = <70 wpm. When you start delaying the transmitter
> keying circuit, to wait for the CPU to complete it's duties, high speed
> CW
> takes the back seat. And there's nothing really wrong with that
> because
> your hopefully getting a much better receiver as a trade-off. When I
> got my
> Omni 6 in 1992, I quickly found its high speed limitations, but I
> called
> Paul at TenTec and it was explained to me WHY the Omni 6 would not key
> any
> faster. But with the very excellent receiver of the Omni 6, my decision
> to
> accept the good rcvr or high speed CW, quickly went with the good rcvr.
>
> The 20 or so high speed CW operators on the east coast fully understand
> that
> what we do is in the extreme majority. And that it would be extremely
> selfish to bitc* and moan to manufacturers about their radios having a
> great
> receiver, at the expense of 100+ wpm full QSK, or even 60 wpm, for that
> matter. We KNOW it's not going to happen, but we still look for it
> anyway.
>
> So if you are a high speed operator, with the performance of the Orion
> and
> the IC-7800 (forget Yaesu), you better save your Corsair 2's. I do not
> limit
> myself in my hobby to just high speed CW. I am a low band DX chaser
> (330
> countries on 40m CW) and enjoy the heck out of being a 'little pistol'
> CW
> contester, and I enjoy the heck out of rag chewing at 30wpm. Finding
> one
> radio that works excellent for all those scenerio's, in my opinion,
> just
> ain't gonna happen. The best 'compromise' you can get is the Omni 6 and
> the
> Icom IC-781, in my opinion.
> >
> > When I was in broadcasting, we had transmitters that
> > used tubes. We later went to solid state
> > transmitters. Why? Over the years they are cheaper
> > and more reliable to operate. There were trade offs
> > however in performance between the tube and the
> > transistor transmitters. So this is a similar issue
> > we face in going to SDR's. There will be performance
> > trade-offs between digital and analogue circuit
> > behavior, and often this comes up as "timing" issues.
> > So what is reasonable as far as "QSK" behavior in the
> > land of SDR? This is the question I propose. You are
> > on record I presume as judging this as an absolute
> > necessity.
>
> NO, I did not 'judge'. There was a 'wish list' on the reflector...and
> that
> was purely MY wish...that's all it was.
>
> What is 'reasonable as far as "QSK" behavior in the land of
> SDR?'....well
> Lee, based on my observations of the RF output waveform of the Orion, a
> true
> SDR, what we better ask is 'What is reasonable to expect for CW
> capability
> from the land of SDR'. The firmware for the Orion has a long way to go
> before it can even be classed as a CW radio at any speed over 40
> wpm...and
> if you doubt that, run your own test and monitor the Orion's RF output
> wave
> form.
>
> 73,
>
> Tom - W4BQF
>
> And maybe there are 15 other excellent
> > hams on the east coast that share your analysis. That
> > is one end of the spectrum, Your vote is noted. Now
> > how about other of us non-excellent operators who are
> > not 7033 QRQ aficionados, but may be DX chasers or
> > weak signal fanatics, or God forbid contesters what
> > are your perceptions? I believe this to be an
> > interesting and quite discussable question that does
> > not necessarily require a dogmatic response but is
> > amenable to a reasoned analysis. As I preciously
> > stated I used to think QSK was an absolute, but after
> > some further analysis I'm not so sure that diminishing
> > returns are reached long before 100wpm. Each timing
> > cycle devoted to achieving 100wpm is a cycle that
> > isn't devoted to some other function.
> >
> > 73 W9OY
> >
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > New and Improved Yahoo! Mail - 100MB free storage!
> > http://promotions.yahoo.com/new_mail
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|