Random thoughts:
You shouldn't have any spurs, that's it. Even though the spur is ~60dB down
on the main signal it'll be easy to decode and just shouldn't be there.
As Tim says it could well be a soundcard harmonic *but* you're using VAC, in
which case it would have to be generated inside the
Simon this is what I have
Vac Settings PowerSDR settings
http://www.slhess.com/pictures/VACsetings.png
I set it up from this KC article.
How to Setup Virtual Audio Cable (VAC) 4.0x with PowerSDR 1.x
http://kc.flex-radio.com/KnowledgebaseArticle50230.aspx
On 02/02/2010 01:17 AM, Simon HB9DRV
OK,
I see you're connecting PowerSDR to the VAC at 48kHz and DM780 / Fldigi at
8kHz.
So the VAC driver will have to convert the data, I'll bet it's this logic
which is causing the spur (note - I am often very wrong).
I don't have any Flex radios at the moment so can't try my idea but I would
Yuck!
Looking at your screenshot again - the VAC Control Panel window - you're
going to have all sorts of rate conversions running, your cables are using
44,100 as their sample rate.
I would use a sample rate of 48,000 or 8,000 and *not* have the cable
running internally at 44,100, essentially
Simon
Dropping the sample rate to 4100 in the PowerSDR set up for VAC
eliminated any Spurs visible in fldigi.
From quickly reading the VAC documentation I didn't grasp how I would
change the sample rate from 4100 to 4800.
As my primary audio sample rate is 48k I attempted to match the VAC
Perhaps someone can clue me in as to what's going on here...
I am running an F3K with pSDR 1.18.3 in WIN 7 (32 bit), vspMgr, and
VAC. In digital mode, when I start fldigi (3.12.5) I notice that my
internet connection shows activity, both Transmit and Receive. In fact,
this happens even when
On Tue, Feb 2, 2010 at 7:11 AM, Steven L Hess sh...@bak.rr.com wrote:
From quickly reading the VAC documentation I didn't grasp how I would
change the sample rate from 4100 to 4800.
As my primary audio sample rate is 48k I attempted to match the VAC
PowerSDR setting to the same audio sample
One further observation on this (?)problem(?) ...IF I close my
internet connection, fldigi will not start. The process throws an error
message: This application has instructed the runtime to terminate it in
an unusual way. Apparently fldigi requires a live connection to the
internet to run.
Yes Joe and the DM780 signal is even cleaner it appears to me to be much
narrower and not in need of any filtering. The apparent width of the
fildigi signal is about 3X wider in the panafall
The trick to get rid of spurs if you have them is the going from 4800 to
4100.
On 02/02/2010 05:13 AM,
Ken...
This is a good idea, but unfortunately I have QRZ turned OFF, and in
fact on this particular menu, nothing is activated.
Thanks, JLR
===
Ken Akin wrote:
John -
I noticed the Fldigi has a set up box to log onto QRZ.com and
perhaps other places (my Flex PC is in a
I am using Whisper mode (WSPR) with my FLEX-3000 and thus using very low power,
so small power differences are significant.
As I increase power output, the Fwd Pwr reading will change from 0 to 1. Does
this reading at this moment indicate 0.5W or 1.0W?
In other words, is the Fwd Pwr reading
FWIW
since i've decided the f3k is a 'keeper' i coughed up the dough forthe
recommended bose companion 2 speakers, to replace the cheapiesI started with.
the hard-core audiophiles on my SUV forum snub bose, typically.'no highs, no
lows, must be bose'...
while i am usually a headphones guy, these
Dan.
I too listen to my flex with stereo speakers hanging on the walls in my
shack. They're not super great, but sound fine with music and voice.
When listening to CW, with 700-800 Hz sweet spot, my stereo speakers seem to
do terrible. Headphones, or another communication grade speaker (Grove
I would tell ZA to ask me for permission when FLDIGI requests
internet access. Might help to understand the problem if you know
exactly when and under what conditions it is heppening.
I also use ZA and I allow only a few things complete unrestricted web
access. All others ask permission, and
I believe the VAC sample rate is set by the first program to open the
VAC. If you fire up PowerSDR enable VAC then start your digital
program, your VAC will be set to the PowerSDR VAC sample rate --
learned the hard way...
Joe Knapp wrote:
On Tue, Feb 2, 2010 at 7:11 AM, Steven L Hess
dan edwards wrote:
FWIW
since i've decided the f3k is a 'keeper' i coughed up the dough forthe
recommended bose companion 2 speakers, to replace the cheapiesI started with.
the hard-core audiophiles on my SUV forum snub bose, typically.'no highs, no
lows, must be bose'...
while i am usually a
You are correct, Dave. That is why it is best to start PowerSDR first and
enable VAC before starting the digi mode program so that PowerSDR can establish
the cable parameters (sampling rate and bit depth).
-Tim
-Original Message-
From: flexradio-boun...@flex-radio.biz
On Tue, Feb 2, 2010 at 1:17 AM, Simon HB9DRV si...@hb9drv.ch wrote:
Random thoughts:
You shouldn't have any spurs, that's it. Even though the spur is ~60dB down
on the main signal it'll be easy to decode and just shouldn't be there.
As Tim says it could well be a soundcard harmonic *but*
that was exactly my problem...
maybe its the cross-over freq for the tweeters or the lil sub or ?? but i had a
real dead spot around 600 hz withmy cheapies.
now its GONE...!!
nice, smooth flat frequ response; the bose's arent very big either..so they fit
on thedesktop nicely...
i'm using my
If there is built in to the fldigi development and intent to allow for
remoted operation EVENTUALLY, and the use of sockets, named pipes EVEN
IF THEY ARE ALL LOCAL TO YOUR MACHINE, will still show up as activity.
You can run wireshark for windows and determine if data is being sent
out your
224.0.0.252 is a multicast ip for link-local topology discovery. It's
harmless, and you can probably turn it off by disabling the LLTD service in
Windows. See http://en.wikipedia.org/wiki/Link_Layer_Topology_Discovery for
more information.
On Tue, Feb 2, 2010 at 12:30 PM, John Ragle
Converting between 8kHz and 48kHz should not be problematic but between
44.1kHz and 48kHz will be a problem unless it's correctly encoded.
there are some good routine in the public domain and also the Intel IPP
libraries have excellent sample rate conversion.
Simon Brown, HB9DRV
Hi Simon,
You are righ on this.
My VAC SR is on 44100 allways, and does not shange if I start DM780 or
PowerSDR first
Have tryed to change SR in PowerSDR first an then start is, but VAC is still
on 44100
So it looks like VAC is fixed on 44100 for some reson.
Then I can se that DM780 is running
Hi,
No.
Simon Brown, HB9DRV
http://sdr-radio.com
-Original Message-
From: Jan Egholm [mailto:j...@egholm.fo]
Sent: 02 February 2010 19:12
So my questions is if there is a way to force DM780 to 41000?
___
FlexRadio Systems Mailing
Am 02.02.2010 um 17:36 schrieb Alfred Green:
dan edwards wrote:
FWIW
since i've decided the f3k is a 'keeper' i coughed up the dough forthe
recommended bose companion 2 speakers, to replace the cheapiesI started with.
the hard-core audiophiles on my SUV forum snub bose, typically.'no highs,
No,
DM780 opens the output device (Soundcard, VAC) at 8kHz. Surely you can set
the VAC to use 48kHz (8kHz * 6) PowerSDR at 48kHz?
You do not have to use the same rate at each end of the VAC - the driver
will convert the sample rate (with a little help from Windows).
I really don't want to
I bought a set of the Bose C2's on recommendation from this list and was fairly
disappointed. Very bassy, no real high end, kind of muddy overall. I can see
why they would be lacking for the high quality communications type audio Flex
touts. Bose probably intends you to buy the whole system
Seems like a perfect, low-impact DIY opportunity to me.
Tang Band (for example) makes a number of excellent full-range drivers
that work well in small, ported cabinets. For those in the US, a trip to
Home Depot for a quarter sheet of MDF, (Medium Density Fiberboard,
listed by them as a hobby
Glad to help, can't have dirty boys on digital modes :)
Simon Brown, HB9DRV
http://sdr-radio.com
-Original Message-
From: Jan Egholm [mailto:j...@egholm.fo]
Sent: 02 February 2010 21:08
So thanks for the help Simon.
___
FlexRadio
I didn't realize that DM780 opened the VAC at 8kHz-- Not a problem..
I've been using DM780 for about 2 years.. I've always kept the PowerSDR
sample rate at 48000.
So as long as PowerSDR opens the VAC at a sample rate that is a multiple
of 8kHz all will be well.
Definitely preserve your brain
Can someone describe the difference the receiver sees visa vis the 10M IF
going to Ant1 or the xvrt/COM connectors..?
If I feed the 28Mhz IF signal into the Ant1 port and select 10M, the signal
is very clean and quite sensitive and image free.
If I send the same 28Mhz IF signal into the
Sounds like RF is getting in to your audio..
-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Lynn Willoughby
Sent: Wednesday, 3 February 2010 8:38 AM
To: Flex Radio
Subject: [Flexradio] bizarre voice transmission
When I
Thanks for windows 7 tip sound card configuration tip Jan.
Now if I can remember it when I need it.
I didn't even know that level of control was there.
I found the transmit signal cleaner at 41000 on fldigi and DM780 on the
PowerSDR display.
I wonder why different results? I am leaving it at
Shuttle AMD Quad Core good for Flex-5000 dedicated computer ?
Will use Win 7 64 XP Pro 64 on seperate partitions.
Looking for cube type computer.
Like the parallel port for SDR-1000 backup.
73's , Bruce
KL7JDR
Bruce W. Mills
P.O. Box 1500
31490 Echo Lake Road
Soldotna , Alaska
Has anyone set up EasyPal with SDR and a Flex-3000? I can receive fine,
but when I try to transmitt, EasyPal locks up. Have set up PTT via CAT
just like in HRD as a TS-2000.
v/r
Gary - W5GW
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FlexRadio Systems Mailing List
Sorry to bug the reflector again.
I was playing with the sample rate settings in VAC and the Windows 7
sound configuration properties and VAC settings in PowerSDR.
I noticed a mismatch between line one and line two Line one was set for
48000 but VAC control pannel says its 41000 Line two is
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