[Linrad] Re: MAP65 for SDR-IQ

["gmail.com; nedstearns@xxxxxxxxxxxxxxxx>]

I have a similar finding here. My preliminary results were on a thread
a few days ago. i am joining this thread
to add what little I have learned.

After finally using the latest version of Linrad (3.02), I got it to
accept an IP address of my choice. However, whenever I toggled the
output over the network, my CPU would lock up. After some
experimentation, I tried to alter the priority of the Linrad
application. Others had mentioned adjusting that with limited success.
I found by changing it from HIGH to ABOVE NORMAL, I finally got Linrad
to not lock up when enabling the output across the network. I have no
idea whether data is in fact going anywhere, I just know that the
Linrad application is operating normally with the priority set to the
lower level.

I still get the same error message in the startup screen on MAP65-IQ
when it is launched on the same CPU as is running Linrad.

As another experiment, I tried using the IP address to another
computer on my network and then running MAP65-IQ on that computer. I
now see data on the network by observing the activity indications on
my router and I no longer get any error messages in the MAP65-IQ
startup screen on the2nd computer. It seems to indicate that it is
accepting unicast data from Linrad. However, the main MAP65-IQ screen
is indicating No RX Data in a red box on the bottom of the window.

Will post more if/when I find more.

Ned
AA7A


On Mar 3, 4:19 am, VK2KU <vk...@xxxxxxxxxxxxxxxx> wrote:
> I ran into the same problem as some others, with "No Rx data" in MAP65-
> IQ,
> and a Linrad screen message: Net_Write Error:xxxx
> where xxxx is a number which grows rapidly and continuously.
>
> I should add that this is a stand-alone  computer, 2.8GHz Celeron,
> single core,
> 1.5GB RAM and running XP (SP2).
> This machine is dedicated to running Linrad, WSJT6 (or MAP65-IQ), and
> Tac32.
> It has 2 screens and 2 serial ports (one for tx control, the other for
> the GPS time Rx).
> It has an "SIS 900-Based PCI fast ethernet adaptor" (whatever that
> is),
> which sounds to me like an onboard network facility.
> It has no network connection to the outside world, and no plug-in
> Ethernet card.
> Perhaps I am naive, but I assumed that the machine would talk to
> itself without one.
>
> I first tried disabling the Windows Firewall - no effect, which was no
> surprise.
> I then followed Joe's advice, and changed the ip address in
> par_netsend_ip
> to 192.168.0.50.
> The computer was not configured to have an ip address (none needed),
> so I gave it one from the usual series. I may not have done this
> right!
> Anyway, it didn't help.
>
> I am now beyond my expertise!
> Is this something simple?
> Do I need a Network card?
> If so, perhaps it is time to upgrade to a dual core (or better)
> machine,
> which might handle the 3 programs (2 needing lots of processing) more
> efficiently.
>
> Guy VK2KU
>
> On Mar 3, 5:25 am, Joe Taylor  wrote:
>
> > Several users trying to set up Linrad and MAP65-IQ on a single Windows
> > computer have reported that the "localhost" address 127.0.0.1 fails to
> > work as expected.  I do not yet know why this fails; apparently Windows
> > (or maybe another program running in the background?) prevents Linrad
> > from sending packets explicitly to 127.0.0.1.
>
> > Anyway, as a solution -- on the Linrad "Network set up" screen enter the
> > computer's own IP address for item #2.
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