On 7/8/24 12:09, Ray D Congdon wrote:
Thanks
for the analysis and recommendations.? The call W7SID?is our
Lemhi Amateur Radio Club Call (I'm, KL7UT, the trustee for the
Club call).?
The
Radio is an older Synth Yaesu...? Don't have the Model
available here.? I'll watch the timing on my service monitor
to see if I'm getting all of the preamble and adjust
accordingly.
Ray, don't overlook that TXDELAY caters for more than just your tx
reaching a ready state, it's not unusual for the rx at the other end
to be slow to unmute (if mute must be used), or just slow to recover
from a tx state. If the remote rx isn't ready IT will clip the start
of incoming data. I agree with David's 150 - 200mS TXDELAY
recommendation although I'd aim for the higher value based on
experience.
Ray vk2tv
I
am using a RA-33 USB Radio Adapter, ()?
It works pretty well. I used several ferrite snap-ons on the
audio/PTT? RA-33/Radio cable, and have no discernable RFI.?
I'll check the RXTAIL setting.
Will
disable the TCP-KISS and AGW?settings as I don't see that they
are used.?
Same
with FIX-BITS
More
is not better....? Will delete all but one and integrate the
PBEACON.
Cable
from the RA-33 to Pi is a shielded?& Choked USB cable. No
RFI detected.
I
set the levels with a commercial Motorola Comm?Systems
Analyzer. 3KHz Tx Out, Minimum reported errors on the
receive.?
Our
Club IT guy (Retired IT Guy...) Says Yes on the firewall and
I'll refer the link to him for review.
?BTW
the site is at 9000 MSL.
Thanks
for your assistance. I'll post on the progress.?
On Tue, Aug 6, 2024 at 3:14?PM
David Ranch via <direwolf-groupsio=
[email protected]>
wrote:
Hello Ray,
I do have VNC access to the Pi and intend
to have the GUI? (YAAC I assume) running on it, not on
the remote.?
GUI based APRS tools like YAAC, Xastir, Polaric, etc. are
nice as you can see maps, etc. but that's really not a need
of an APRS "server" up on a mountain top.? Direwolf alone
should be more than enough for most use cases.
I Filezilla-ed into the Pi on the mtn and
here is the direwolf.conf file.? W7SID is our club call
(I'm the trustee).
This .conf file
is the result of my all thumbs approach... any
suggestions, editing etc will be much appreciated.
In reviewing your config file:
?? - Your callsign is KL7UT but the direwolf config is using
W7SID-10.?? What is this other callsign?
?? - What radio are you using?? You have a TXDELAY of "10"
or 100ms which is probably too fast for most HAM grade
radios.? GOOD radios might do 150 to 200ms but crappy ones
might take 250-250ms
?? - What sound device are you using on your Pi?? Depending
on your setup, you might need a TXTAIL setting too
?? - Unless your going to use the TCP-KISS or AGW ports, I
recommend you change those lines to use port 0 which means
disable
?? - For a high level digipeater, it's generally recommended
to DISABLE FIX-BITS
?? - You have three RF PBEACONS sending roughly the same
detail.? Just use one.
?? - You have one PBEACON sending to APRS-IS.? You might
consider making it's detail the same as the one RF beacon
you keep as recommended above
?? - How did you cable it to a sound device connected to
your Raspberry Pi?
?? - Do you feel you've tuned your input and output audio
levels so your signal is well tuned?
?? - Have you hardened your Raspberry pi with a firewall,
etc?? I have some best practices here:?
--David
KI6ZHD
