Linrad Google Group

Re: ANt pol - H / V

l...@sm5bsz.com (Leif Asbrink) — Mon, 09 Nov 2009 20:21:32 UT

Hi Carsten,
The same as everyone else. Look at the polarization readout for several
EME signals and estimate ellipticity. If you see a circle, add a 0.25 wl cable
to one or the other antenna cable. If you see an ellipse at 45 dehgrees with
ellipticity 50%, add o.12 wl to one or the other cable.
You would have long cables, many amplifiers and converters between

ANt pol - H / V

c...@ade-vertrieb.de (cg) — Sun, 08 Nov 2009 21:22:21 UT

MessageHy all
What i must do if i have 90 deg Phase between my H and V dipol an the ant boom ?
What is the right parameters that Linrad knows the phaseshifting between the antennas ?
for example - M²´ 2M28XP
best 73 de Carsten
DM1CG

Re: Polswitching from H / V Antenna

l...@sm5bsz.com (Leif Asbrink) — Wed, 04 Nov 2009 21:45:50 UT

Hi Carsten,
I do not remember. It is written somewhere in the MAP65 documentation.
Well, I have no experience with that. I would verify by checking
dt from MAP65;-)
The unit that needs calibration is the RX2500. For I/Q balancing
it does not matter if you send the signal into 2.5, 10.7, 70 or
144 MHz. Use what is convenient - but connect both channels.

Re: 32 or 64 bit

g3...@blueyonder.co.uk (Sid Boyce) — Wed, 04 Nov 2009 11:17:05 UT

That's the answer. There is usually a menu item (in KDE at least) for
system information that tells you what processor you have amongst other
useful stuff - also the "hwinfo" command and if you are still unsure, a
google search will reveal whether the reported CPU is 32 or 64-bit.
73 ... Sid.

Re: [Linrad] Re: Polswitching from H / V Antenna

c...@ade-vertrieb.de (ADE - Carsten Gabriel) — Tue, 03 Nov 2009 14:22:17 UT

Hello Leif

Tnx

I know that the cables OK , but will check them again.

what is the right level ?

The time in Linrad is the same as in MAP65 - same PC - .
- sync by Dimension 4

What is the way to calibrate the WSE and the filters ?
What level the WSE need for calibrate ?

I thing we have running a very good system but used only 10% from it

Re: Polswitching from H / V Antenna

l...@sm5bsz.com (Leif Asbrink) — Tue, 03 Nov 2009 13:37:36 UT

Hi Carsten,

Maybe the cables are crossed somewhere....
Besides having the correct signal level into MAP65 you must also
have the correct time. Maybe WSJT searches in a slightly wider range
of time offsets than MAP65. Look for the time of those transmissions
that decode and make sure they fall well within the search window.

Re: 32 or 64 bit

l...@sm5bsz.com (Leif Asbrink) — Tue, 03 Nov 2009 13:21:46 UT

Hi Chris,
Yes:-)
The problem was to know what libraries to look for with the
configure script.
Linrad can use optional packages but they may be
difficult to install for newcomers. Therefore the configure
script will give informative (hopefully) messages about
what options that could be added.
For Linrad-03.09 they are:

Re: [Linrad] Re: 32 or 64 bit

kc2...@gmail.com (Chris) — Tue, 03 Nov 2009 03:47:46 UT

Isn't that simply telling you if the OS is 32 or 64 bit? You can have 32 installed on a 64 bit platform.

Or was that the original question?

-----Original Message-----
To: <linrad@googlegroups.com>

Hi Ken and Pierre,

Yes. Thanks. I verified this on my Xeon system with 64 bit Suse.

Re: 32 or 64 bit

l...@sm5bsz.com (Leif Asbrink) — Tue, 03 Nov 2009 02:56:42 UT

Hi Ken and Pierre,
Yes. Thanks. I verified this on my Xeon system with 64 bit Suse.
I feel a bit uneasy about this method because when there are changes in
the 64 bit architecture in the future, maybe the -m would report someting
else....
Fortunately the hint from Pierre:
[link]

Polswitching from H / V Antenna

c...@ade-vertrieb.de (ADE - Carsten Gabriel) — Mon, 02 Nov 2009 08:05:12 UT

hello all

I use a system with 8 times 14ele XPol antennas.
I use Linrad 0308 in weak siganl CW and WSE
Setings for POL is:
0
+
Auto
H

Channel 1 - horizontal
Channel 2 - vertikal

now Linrad calculated the pol 90 deg wrong !!!
I checked with TS2000 and WSJT and the signals
from the WSE / Linrad with 90 deg are all only on hori.

Re: [Linrad] 32 or 64 bit

kabe...@gmail.com (Ken Beals) — Mon, 02 Nov 2009 03:20:56 UT

Leif:

I'm certainly no serious programmer, so maybe this is not what you want:

uname -m

I only have 32 bit systems here, so it reports 'i686' on those (could
also be i386/i486/i586). My understanding is that 64 bit systems
return 'x86_64'.

Ken K6MR

2009/11/1 Leif Asbrink <l...@sm5bsz.com>:

32 or 64 bit

l...@sm5bsz.com (Leif Asbrink) — Sun, 01 Nov 2009 20:57:43 UT

Hi All,
Under Linux the Linrad configure script looks for various files
to decide which packages are installed. This works for 32 bit
versions of Linux, but when Linrad is compiled on a 64 bit
distribution the test for things like libXext.so which is done
like below may give a false positive.
LIBEXT=0

Linrad+ubuntu 9.10

l...@sm5bsz.com (Leif Asbrink) — Thu, 29 Oct 2009 23:08:38 UT

Hi All,
I have received this bug report:
The gcc compiler is changed now and then and it always becomes better.
I have not yet tried Ubuntu 9.10 myself, but obviously the latest
gcc (not yet included in Debian testing) has better error checking.
There is a serious error in Linrad. The array declared on line 22 in

Re: [Linrad] Re: LINRAD+WSE

l...@sm5bsz.com (Leif Asbrink) — Tue, 27 Oct 2009 17:03:36 UT

Hi Alex,
The reason Linrad is so complicated, to newcomers is that you
have a lot of fredom to select what processing you want.
First, get an understanding of the block diagram.
[link]
The "first mixer bandwidth reduction" sets the sampling speed
of timf3 to a power of two less than the sampling speed at

MAP65iq on Vista

kl...@acsalaska.net (Edward Cole) — Tue, 27 Oct 2009 15:50:20 UT

I have MAP65iq_r11116 installed and running on a Dell laptop running Vista
Not really knowing what I am doing I plugged in my SDR-IQ and the
computer asked for a driver. I let it search for one and it found
and installed a driver and when I start Linrad in SSB and MAP65 I get
what looks like a normal waterfall.