That recovery is not in real time, and I don't know the exact delay (it's
small) but you can hear the other station (or others) in the RX while
transmitting, between CW elements. So, maybe you hear him half a character
later than in a "realtime" rig, but I suspect it's a shorter time than the
human recovery time ("oh, wait, someone trying to break . . .") Steve,
N5AC, described it to me at HamCom this year - it's pretty sophisticated,
and the result at the user's end is to not even notice a delay. I run QSK
all the time, and in use, it's not noticeably different from any TT rig
other than you can actually hear the other guy better. (That audio thing
Barry mentioned.) Regarding the lack of knobs, I can't argue there.
Sometimes I miss reaching for a knob to tweak something, but I've found it's
more rare than I thought it would be. I have the "FLEXcontrol" (single
knob, assignable to 4 functions) and I use it almost exclusively for tuning.
I'm very pleased with my 6500 - I knew it would take a heck of a rig to make
me happy after the Orion, but, other than doing more computer diddling than
I'd like on occasion when setting up new digital modes, I really like it.
73, Duane
Duane Calvin, AC5AA
Austin, Texas
ac5aa@ac5aa.com
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Barry N1EU
Sent: Monday, December 7, 2015 7:59 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] TenTec Digest, Vol 156, Issue 4
I'm not sure that's the right question to ask because recovery doesn't
necessarily happen in real time. The Flex T/R cw recovery is really a mind
blower for an SDR. But does it necessarily mean you can do actual QSK and
hear someone else trying to break you in real time? I think there's still
receive latency so that even with the receiver recovering, it still lags
real time signals by 150msec (or whatever).
Barry N1EU
On Mon, Dec 7, 2015 at 8:50 AM, rick@dj0ip.de <Rick@dj0ip.de> wrote:
> Paul, when you release the PTT and the green line drops, how long does
> it take for the receiver to recover?
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt, Germany)
>
>
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Paul
> Christensen
> Sent: Monday, December 07, 2015 2:38 PM
> To: 'Discussion of Ten-Tec Equipment'
> Subject: Re: [TenTec] TenTec Digest, Vol 156, Issue 4
>
> > Sorry Barry, latency measured on the Anan does not necessarily apply
> > to
> the FLEX 6000.
>
> I made timing and latency measurements of my Flex 6700 using an
> Agilent 4-channel DSO. I captured the data and uploaded the DSO graphic
images.
> Keep an eye on the PTT trace from the external keyer as the timing
> reference. QSK performance has improved further since the date of these
> measurements. QSK performance is at least as good as the K3 and the many
> Ten Tecs I've owned. It is fast. At 40+ wpm, I don't feel like I'm
> dragging characters behind me due to any latency, and there are no
> headphone audio thumps or clicks in CW T/R transitions.
>
>
> https://community.flexradio.com/flexradio/topics/flex_6700_cw_keying_v
> _elecr
> aft_k3
>
> Paul, W9AC
>
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