Linrad Google Group

Re: Delta 44 ALSA gain setting

l...@sm5bsz.com (Leif Asbrink) — Sat, 11 Oct 2008 08:05:00 UT

Hi Michel and All,
4Front has three settings: -10, CONSUMER and +4dB. They work as
one would expect and saturate at 3.6V, 7.1V and 14.1V.
Not really. There are several settings that may affect the gain. It
depends on how many channels you have selected. I tried one channel and
then must set A/D to 100, click H/W Multi= capture and set it to 100.

Re: Linrad & QS1R

dl...@yahoo.de (dl2ja) — Wed, 08 Oct 2008 08:28:42 UT

Leif thanks for fast reply

And the noise blanker is second to none what I experienced over the
years using LinRad :)

OK Leif I have no idea about such details, I thought it might be
similar like the adaption with Perseus.

I played with LinRad/Perseus and it works fine - the advantage of a

Re: Linrad & QS1R

l...@sm5bsz.com (Leif Asbrink) — Tue, 07 Oct 2008 22:01:09 UT

On Tue, 7 Oct 2008 11:00:08 +0000 (GMT)
Hello Werner,
QS1R is licensed open source (GPL) while Linrad is free software.
I will under no circumstances add any kind of restriction
to the free usage for anyone of Linrad or its source code
for any purpose. (I think the way the noise blanker works
is fundamentally different from what one can find in any other

Linrad & QS1R

dl...@yahoo.de (Werner Hlawatschek) — Tue, 07 Oct 2008 11:00:08 UT

Leif et all,
Is there any plan to merge in future LinRad and the QS1R
receiver? Both projects are open source, what would be the
preconditions to realize this?

Re: [Linrad] Re: linrad-02.52

pierre.vanhou...@skynet.be (Pierre Vanhoucke) — Mon, 06 Oct 2008 15:22:45 UT

Hi Leif,
Thank you for the correction :-)
73
Pierre/ON5GN

Re: linrad-02.52

l...@sm5bsz.com (Leif Asbrink) — Mon, 06 Oct 2008 14:40:53 UT

Hi Pierre and all,

Oooh! This is a stupid bug in thrdef.h
This list of defines is incorrect:
// semaphores 0 to SEM_KEYBOARD-1 are initiated in lir_sem_init()
// The following ones have to be initiated individually.
This is what it has to look like:
// semaphores 0 to SEM_KEYBOARD-1 are initiated in lir_sem_init()

Linrad-02.52

l...@sm5bsz.com (Leif Asbrink) — Sun, 05 Oct 2008 20:47:38 UT

Hi All,
The new version is at the bottom of
[link]
A bug in the transfer of calibration functions from
master to slaves over the network has been corrected.
The soundcard setup under Linux is improved thanks to
ON5GN and some adjustments of the code has made playback

Re: Best waterfall settings for viewing JT65b

l...@sm5bsz.com (Leif Asbrink) — Mon, 08 Sep 2008 23:46:09 UT

Hi Jeff,
Sure. The waterfall bandwidth would be around 200Hz, two orders of
magnitude too large.
Make the second fft bandwidth something between 2 and 5 Hz.
It may be a good idea to make the fft1 bandwidth 20Hz or so
to avoid a very large ratio between the bandwidths in case you
also have very strong signals present.

Best waterfall settings for viewing JT65b

wa1...@gmail.com (jeff millar) — Mon, 08 Sep 2008 02:44:47 UT

What do people use for linrad setting to monitor the band for EME signals??
I've been using Linrad to monitor the 2M band with one receiver and using a second receiver with
WSJT. With the default settings for SSB, the waterfall display doesn't seem very sensitive to the
JT65B signal.
I've tried playing with 2nd FFT BW factor and averaging on the waterfall and EME signals that show

Re: [Linrad] Re: Output delay margin.

pierre.vanhou...@skynet.be (Pierre Vanhoucke) — Fri, 29 Aug 2008 12:40:17 UT

Hi Ermanno,
Thank you for the help.
Unfortunately on my system the left and right arrow keys have no effect.
The problem is probably related to my french keyboard.
Thanks and best 73
Pierre/ ON5GN

Re:[Linrad] Re: Output delay margin.

ik7...@libero.it (Ermanno F.) — Fri, 29 Aug 2008 12:10:43 UT

Hi Pierre.

Up e Dw passband.
Left e Rigth freq. Bfo

Ciao

Ermanno

---------- Initial Header -----------

From : linrad@googlegroups.com
To : linrad@googlegroups.com
Cc :
Date : Fri, 29 Aug 2008 13:07:35 +0200
Subject : [Linrad] Re: Output delay margin.

Re: [Linrad] Output delay margin.

pierre.vanhou...@skynet.be (Pierre Vanhoucke) — Fri, 29 Aug 2008 11:07:35 UT

Hi Leif,
I can move the passband with the (up and down) arrow keys, but couldn't
find out how to tune the frequency or the BFO .
Please explain.
Thanks and best 73
Pierre/ ON5GN

Output delay margin.

l...@sm5bsz.com (Leif Asbrink) — Thu, 28 Aug 2008 21:30:00 UT

Hi All,
In later versions there is a bug that may cause high
cpu loads and program freezes in case the output delay
margin is set too high. On my computer that is above
1000 or so, so I did not notice. A bug report from
Michel, ON7EH, who got freezes with the default 500 ms,
helped me to locate this bug which is corrected for 02-51.

Re: Linrad for newcomers

on...@skynet.be (Michel) — Tue, 26 Aug 2008 13:42:55 UT

Hi Dom,

thanks to the (always appreciated) help of more experienced Linux/
Linrad-users on this reflector,
be informed, recent Ubuntu 7.10 and 8.04 releases, to require just 5
extra packages to be installed, for Linrad to be functional:

-linux-source
-build-essential
-xorg-dev
-nasm
-libtool

Speech processor.

l...@sm5bsz.com (Leif Asbrink) — Mon, 25 Aug 2008 00:12:23 UT

Hi All,
With Linrad-02.50 the speech processor of the transmit side
can be used as a pre-processor for a conventional SSB
transmitter. (Also for FM and other analog modes.)
There is a new page here:
[link]
Your syste must have two output devices and two input