30 Jan
2023
30 Jan
'23
6:21 a.m.
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the Delta
44 is the preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces
(USB interconnect) and what have you found to be the best for EME use
particularly JT65B. I do not use MAP 65 so just the SSB bandwidth is all I
require.
TIA.
Best 73
Fred
N1DPM
30 Jan
30 Jan
9:44 a.m.
Hi Fred.
If you are not using an SDR receiver but rather using a normal rig with SSB
bandwidth then any sound card suitable for music is more than good enough
to feed WSJTX.
WB9UWA.
On Mon, Jan 30, 2023 at 5:25 AM Fred Stefanik via Moon-net <
moon-net(a)mailman.pe1itr.com> wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the
Delta 44 is the preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces
(USB interconnect) and what have you found to be the best for EME use
particularly JT65B. I do not use MAP 65 so just the SSB bandwidth is all I
require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
--
Earl Shaffer, WB9UWA
My EME array photos
https://www.dropbox.com/sh/bbn2ktonko8e3az/AACHBBOhf6Djk5Pf2c86Br5ja
Detailed array photos
http://www.gm4jjj.co.uk/WB9UWA/
Facebook
http://www.facebook.com/earl.shaffer
Linkedin
http://www.linkedin.com/pub/earl-shaffer/12/881/735
10:27 a.m.
Hello Fred, the Behringer UMC202HD has good drivers and is perfectly adequate for what you
need. It is attractively priced.
Conrad PA5Y
From: Moon-net <moon-net-bounces(a)mailman.pe1itr.com> On Behalf Of Earl Shaffer via
Moon-net
Sent: 30 January 2023 15:45
To: Fred Stefanik <n1dpmfred(a)gmail.com>
Cc: John Regnault via Moon-net <moon-net(a)mailman.pe1itr.com>
Subject: Re: [Moon-Net] Ext USB sound cards...
Hi Fred.
If you are not using an SDR receiver but rather using a normal rig with SSB bandwidth then
any sound card suitable for music is more than good enough to feed WSJTX.
WB9UWA.
On Mon, Jan 30, 2023 at 5:25 AM Fred Stefanik via Moon-net
<moon-net@mailman.pe1itr.com<mailto:moon-net@mailman.pe1itr.com>> wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the Delta 44 is the
preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces (USB
interconnect) and what have you found to be the best for EME use particularly JT65B. I do
not use MAP 65 so just the SSB bandwidth is all I require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
--
Earl Shaffer, WB9UWA
My EME array photos
https://www.dropbox.com/sh/bbn2ktonko8e3az/AACHBBOhf6Djk5Pf2c86Br5ja
Detailed array photos
http://www.gm4jjj.co.uk/WB9UWA/
Facebook
http://www.facebook.com/earl.shaffer
Linkedin
http://www.linkedin.com/pub/earl-shaffer/12/881/735
1:38 p.m.
I'm (temporally) using the internal soundcard (Realtek) in my Dell i5
win10 computer.
That was interfaced to my K3 spkr and line-in ckts for running Q65A
6m-eme with wsjt-x. 6m antenna array being H-pol-only, MAP65 is not needed.
Eventually (when I can get the driver installed), I will be using a
UADC4 which has four audio input ports and USB I/F to the computer. I
will feed the UADC4 with two I-Q baseband RF from two LP-Pan (SDR) that
are fed by the K3 dual-Rx IF. I expect the UADC4 to work better than
typical soundcards.
Previously I used a Delta44 in place of the UADC4 for 2m adaptive pol Rx.
73, Ed - KL7UW
On 1/30/2023 2:21 AM, Fred Stefanik via Moon-net wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the
Delta 44 is the preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio
interfaces (USB interconnect) and what have you found to be the best for
EME use particularly JT65B. I do not use MAP 65 so just the SSB
bandwidth is all I require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
1:44 p.m.
Reading all these... is there any advantage to using a sound card vs the
USB interface on an IC-9700? Is the radios internal data conversion
noisier?
Mary
W0AAT
On 1/30/2023 12:38 PM, Ed Cole via Moon-net wrote:
I'm (temporally) using the internal soundcard
(Realtek) in my Dell i5
win10 computer.
That was interfaced to my K3 spkr and line-in ckts for running Q65A
6m-eme with wsjt-x. 6m antenna array being H-pol-only, MAP65 is not
needed.
Eventually (when I can get the driver installed), I will be using a
UADC4 which has four audio input ports and USB I/F to the computer. I
will feed the UADC4 with two I-Q baseband RF from two LP-Pan (SDR)
that are fed by the K3 dual-Rx IF. I expect the UADC4 to work better
than typical soundcards.
Previously I used a Delta44 in place of the UADC4 for 2m adaptive pol Rx.
73, Ed - KL7UW
On 1/30/2023 2:21 AM, Fred Stefanik via Moon-net wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the
Delta 44 is the preferred sound card but win 10 compatibility is an
issue.
I'm wondering if anyone has done any testing on external audio
interfaces (USB interconnect) and what have you found to be the best
for EME use particularly JT65B. I do not use MAP 65 so just the SSB
bandwidth is all I require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
2:17 p.m.
Mary,
Thank for asking that question. I was going to ask it myself.
Of course, that kind of interfacing extends to any other radio exposing
a virtual sound card.
--
73 de Max, N5NHJ (I8NHJ)
one of EL2PP, 1A0KM, JT1Y, E30GA, T77V, TT8MM, T32R, K5K, XR0X, S05X, 4O3T, BS7H, K4M,
PJ7E, PJ7DX, 6Y1V, C6ANA, VP5/I8NHJ, ZF2NH, KP4/N5NHJ and...
On 30-Jan-23 18:44, Mary Brown via Moon-net wrote:
Reading all these... is there any advantage to using a
sound card vs
the USB interface on an IC-9700? Is the radios internal data
conversion noisier?
Mary
W0AAT
2:59 p.m.
To get around the sound card issue one can use the Afedri 822VHFX2 2 channel SDR for 6
meters to 23 cM MAP65 by using Linrad on current OS versions including Windows 11. It
needs no sound card. $400 is the current price.
Conrad knows far more than I do about it but it worked fine for me using the Afedri-net
setup under Windows 10. With MAP65 3.0 I was pleased with the deeper decodes.
73, Roger, NJ2R
Sent from my iPhone
On Jan 30, 2023, at 6:27 AM, Fred Stefanik via
Moon-net <moon-net(a)mailman.pe1itr.com> wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the Delta 44 is the
preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces (USB
interconnect) and what have you found to be the best for EME use particularly JT65B. I do
not use MAP 65 so just the SSB bandwidth is all I require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
3:20 p.m.
Hi All.
There seems to be some confusion here so I will repeat myself.
"If you are not using an SDR receiver but rather using a normal rig with
SSB bandwidth then any sound card suitable for music is more than good
enough to feed WSJTX."
The way Fred explained it, he is using a rig in SSB bandwidth to feed
speaker audio from his rig to a sound card in a computer driving WSJTX.
In this case you can use the cheapest sound card you can lay your hands on
or the most expensive, most capable sound card you can find and there is NO
DIFFERENCE at all. I have even decoded signals successfully using speaker
audio with a microphone on the computer for input.
For SDR receivers like the IQ+, it is a horse of a different color and that
is where I believe the confusion lies here. If an SDR drives the sound
card, you must have a very good dynamic range with reasonable noise figure.
It must have 96khz or more bandwidth if Map65 is to cover the whole digital
EME sub band on 2 meters. For an Xpol system you must have 4 channels in
the sound card (in phase) because the SDR will produce and I and a Q
channel for each of a vertical and a horizontal channel.
Fred is NOT using Map65. Don't sweat the sound card. Use what you have with
confidence that it is the best it can be.
WB9UWA.
On Mon, Jan 30, 2023 at 5:25 AM Fred Stefanik via Moon-net <
moon-net(a)mailman.pe1itr.com> wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the
Delta 44 is the preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces
(USB interconnect) and what have you found to be the best for EME use
particularly JT65B. I do not use MAP 65 so just the SSB bandwidth is all I
require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
--
Earl Shaffer, WB9UWA
My EME array photos
https://www.dropbox.com/sh/bbn2ktonko8e3az/AACHBBOhf6Djk5Pf2c86Br5ja
Detailed array photos
http://www.gm4jjj.co.uk/WB9UWA/
Facebook
http://www.facebook.com/earl.shaffer
Linkedin
http://www.linkedin.com/pub/earl-shaffer/12/881/735
3:37 p.m.
I'm using a Focusrite Scarlett 2i2 for my digimode stuff and very happy
with it. They are not the cheapest external soundcard, but they do the job
well. Having the external gain controls is very useful for me.
https://focusrite.com/en/usb-audio-interface/scarlett/scarlett-2i2
On Mon, 30 Jan 2023 at 11:31, Fred Stefanik via Moon-net <
moon-net(a)mailman.pe1itr.com> wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the
Delta 44 is the preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces
(USB interconnect) and what have you found to be the best for EME use
particularly JT65B. I do not use MAP 65 so just the SSB bandwidth is all I
require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
31 Jan
31 Jan
4:58 a.m.
The scarlet sadly has notoriously bad drivers, put a -1dBFS signal into it and look at the
FFTs in Linrad or similar. You will see many dropped packets. It’s a shame because the
Focusrite are a serious contender in pro audio. The ADC is excellent, the mic pre amps
have low noise.
Do a google search for focusrite scarlett 2i2 bad drivers windows 10 you will soon see
that there are many problems.
Not recommended.
73
Conrad PA5Y
From: Moon-net <moon-net-bounces(a)mailman.pe1itr.com> On Behalf Of Robin Szemeti via
Moon-net
Sent: 30 January 2023 21:37
To: Fred Stefanik <n1dpmfred(a)gmail.com>
Cc: John Regnault via Moon-net <moon-net(a)mailman.pe1itr.com>
Subject: Re: [Moon-Net] Ext USB sound cards...
I'm using a Focusrite Scarlett 2i2 for my digimode stuff and very happy with it.
They are not the cheapest external soundcard, but they do the job well. Having the
external gain controls is very useful for me.
https://focusrite.com/en/usb-audio-interface/scarlett/scarlett-2i2
On Mon, 30 Jan 2023 at 11:31, Fred Stefanik via Moon-net
<moon-net@mailman.pe1itr.com<mailto:moon-net@mailman.pe1itr.com>> wrote:
Hello EMErs....
All of this JT65 vs Q65 discussion raised a question...seems like the Delta 44 is the
preferred sound card but win 10 compatibility is an issue.
I'm wondering if anyone has done any testing on external audio interfaces (USB
interconnect) and what have you found to be the best for EME use particularly JT65B. I do
not use MAP 65 so just the SSB bandwidth is all I require.
TIA.
Best 73
Fred
N1DPM
_______________________________________________
Moon-Net posting and subscription instructions are at
http://www.nlsa.com/nets/moon-net-help.html
125
days inactive
126
days old
10 comments
9 participants
participants (9)
-
Conrad PA5Y -
Earl Shaffer -
Ed Cole -
Fred Stefanik -
John＠pa5ms.nl -
Mary Brown -
Max Mucci, N5NHJ (I8NHJ) -
Robin Szemeti -
Roger Shultz