riginal Message- From: Don Wilhelm Sent: Sunday, April 16,
2017 7:41 PM To: Brian Hunt ; Reflector Elecraft Subject: Re:
[Elecraft] K3 on JT-65, ALC varies widely
Brian,
Try this -- set the K3 LINE in gain to somewhere near mid-range, and
then adjust the soundcard "speaker" slider
Elecraft
Subject: Re: [Elecraft] K3 on JT-65, ALC varies widely
Brian,
Try this -- set the K3 LINE in gain to somewhere near mid-range, and
then adjust the soundcard "speaker" slider to give you close to the 4
ALC bars with the 5th bar flashing. Refine that level with slight
adjustme
Brian,
Try this -- set the K3 LINE in gain to somewhere near mid-range, and
then adjust the soundcard "speaker" slider to give you close to the 4
ALC bars with the 5th bar flashing. Refine that level with slight
adjustments to the LINE in gain.
You can use TX TEST while making those adjustm
Oops, that should have been Line OUT gain.
Brian, K0DTJ
On 4/16/2017 18:19, Brian Hunt wrote:
Don't see a problem with making minor adjustments of the Line In gain during the first
transmission. When I adjust the level using the WSJT TUNE button I usually see the wild
fluctuations mentioned.
Joe,
I'll comment on my setup:
1. Lock TX=RX is checked
2. tones are approximately 1500 hz
Robie - AJ4F
On Mon, Apr 17, 2017 at 1:34 AM, Joe Subich, W4TV wrote:
>
> TX ad RX EQ are forced to flat in DATA A (and AFSK A) mode.
>
> What frequency tones (TX Hz in WSJT-X) are you using? I
TX ad RX EQ are forced to flat in DATA A (and AFSK A) mode.
What frequency tones (TX Hz in WSJT-X) are you using? Is WSJT-X
in split mode?
If I adjust the audio input *carefully* to 4 bars, I will see the "ALC"
vary from 3 to 5 bars and the power output will vary between 98 and 102
Watts
Don't see a problem with making minor adjustments of the Line In gain during
the first transmission. When I adjust the level using the WSJT TUNE button I
usually see the wild fluctuations mentioned. A small "tweak" to the gain will
set right.
73,
Brian, K0DTJ
_
I also see the same behavior as Dave. I have verified my K3 is in DATA A
and the TX Equalization is a flat line. However, I routinely make
contacts with JT65. I use WSJT-x v 1.7.0
Robie - AJ4F
On Mon, Apr 17, 2017 at 12:10 AM, Walter Underwood
wrote:
> TX EQ could cause problems like this i
TX EQ could cause problems like this if not in DATA A.
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Apr 16, 2017, at 4:52 PM, Joe Subich, W4TV wrote:
>
>
> Since bars 0-4 represent audio drive level and *not* true ALC when
> in digital mode (DATA A, AFSK
Since bars 0-4 represent audio drive level and *not* true ALC when
in digital mode (DATA A, AFSK A), what you are seeing represents a
significant change in *audio drive level* for the different tones.
Are you sure you are using DATA A and not AFSK A with the AFSK
Filter turned on? What freque
Hi Dave,
What you're seeing is fairly normal for your setup. The 2.7 kHz 5-pole
filter is not as flat as the 2.8 kHz 7-pole filter, which I noticed on
RTTY. I subsequently switched to 7-pole filters (but not in the Sub-RX).
A JT65 signal is about 220 Hz wide, so when you get near the top of th
I just started playing with JT-65 and JT-9 this weekend, and I’ve already
worked a bunch of DX, so it’s basically working ok.
Transmitting on JT-65, I see a lot of variation in ALC and power as the various
tones change. I’m using Data A mode with the stock 2.7 filter. I just had a
QSO with to
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