[amsat-bb] Question for Gpredict Users

Andrew Koenig ke5gdb at gmail.com
Sat Jun 21 21:05:19 UTC 2014

It's not that difficult. I'm going to CC the 'bb on this so anybody else
facing the same problem can use this. Also, they should be almost drop-in
compatible, but I ran all of this on a Linux Mint install, not Ubuntu. Mint
(IMHO) is a little more friendlier than Ubuntu, but is a direct fork of
Ubuntu so you shouldn't have any compatibility issues.

First, install git and some dependencies. This assumes GPredict is already

*sudo apt-get install git libglib2.0-dev libtool intltool
libcurl4-gnutls-dev libgoocanvas-dev*

Then you'll want to grab the code.

*git clone git://git.code.sf.net/p/gpredict/code
<http://git.code.sf.net/p/gpredict/code> gpredict-code*

This will create a new directory (probably gpredict-code); you'll want to
move into that directory.

*cd gpredict-code *

Next, run the autogen script. This prepares the code for installation.


Assuming that runs all the way through without exiting for errors, run




and finally

*sudo make install*

Assuming everything goes according to plan, you should be able to launch
the program by running


Make sure it's the correct version by going to Help > About GPredict.
"GPREDICT 1.3.242-b445" is the text you're looking for.

Finally, let's replace the out-of-date binary with this one. This probably
isn't the best way to do it, but it works.

*sudo mv /usr/local/bin/gpredict /usr/bin/*
That should do it for updating it to the latest version.

Other changes that were helpful:
> Duplex TRX & Sub Up / Main Down in the interfaces prompt
> Modules > Layout > Select Layout "All Views (Wide)" (Requires restart of

Anyway, good luck. Let me know how it turns out.

73 de KE5GDB

On Sat, Jun 21, 2014 at 12:53 PM, Richard Lawn <rjlawn at gmail.com> wrote:

> Rats! It's been a struggle up to this point. Maybe I should wait for it to
> hit the repository. If not I'll need specific directions on how to compile
> it as I've never done that before.
> Thanks.
> Rick
> On Saturday, June 21, 2014, Andrew Koenig <ke5gdb at gmail.com> wrote:
>> Rick,
>> This is where things get exponentially more difficult. There's a bug in
>> GPredict that directly affects the 847, and it's been fixed, but that fix
>> hasn't propagated through the repositories yet. You'd need to build
>> GPredict from source code to have the change applied.
>> git clone git://git.code.sf.net/p/gpredict/code gpredict-code
>> That command is where you'd start. I think from there you'd run
>> autoconf.sh or something. At this point things start getting fuzzy as to
>> how I fixed it, but it wasn't a simple process.
>> On Sat, Jun 21, 2014 at 10:47 AM, Richard Lawn <rjlawn at gmail.com> wrote:
>>> This is fabulous! You've gotten me very close to all this working. I now
>>> I have CAT control but when call up the radio control panel in Gpredict
>>> and select SO50 for example the main tune jumps to the correct 70cm freq
>>> for downlink but the sub tuning freq for uplink remains unchanged. I must
>>> be missing a command line command for the 847 in Hamlib which I still don't
>>> entirely understand but I'm getting there. Any suggestions on how to make
>>> this last fix?
>>> Tnx
>>> Rick
>>> On Saturday, June 21, 2014, Andrew Koenig <ke5gdb at gmail.com> wrote:
>>>> Rick,
>>>> GPredict will control your rig, but it requires hamlib. From the
>>>> command line, you must run rigctld -m 101 -s 9600 /dev/ttyS0. These
>>>> parameters will change for whatever flavor of radio you're using (m = rig
>>>> number; s = CAT baud rate). Rigctld is part of hamlib. I think the command
>>>> to list all of the different radios supported is rigctl --list.
>>>> Under the "Interface" configuration, you must specify your rig
>>>> capabilities. All this does is tell GPredict what to expect from
>>>> hamlib/rigctld.
>>>> rotctld is the one for your rotor. It works in the same manor as
>>>> rigctld.
>>>> Let me know if you've got any more questions or need further
>>>> explanations. I think these commands are correct, but I'm not at the shack
>>>> PC.
>>>> 73 de KE5GDB
>>>> On Fri, Jun 20, 2014 at 4:41 PM, Richard Lawn <rjlawn at gmail.com> wrote:
>>>>> I'm new to using Ubuntu-Linux. I finally with a lot of outside
>>>>> counciling
>>>>> got FlDigi to run using either Hamlib or Flrig to handle CAT on my
>>>>> FT-847.
>>>>> I thought I was home free until I found that Gpredict would not
>>>>> control CAT
>>>>> on the radio. What am I doing wrong? Can anyone help? Linux is my only
>>>>> resource on this old XP P3 computer. Ubuntu runs great if I can only
>>>>> learn
>>>>> how to use command line Linus language hi hi!
>>>>> 73
>>>>> Rick
>>>>> W2JAZ
>>>>> _______________________________________________
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>>>>> author.
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>>>> --
>>>> Andrew Koenig
>> --
>> Andrew Koenig

Andrew Koenig

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