Frank,
I also required more granularity and control over DX spots than DX4Win
provides, and I wanted it to be more flexible so I could easily change the
spotting patterns during a contest, or when a DXpedition (VK9DWX, for
example) was on the air.
To solve this I installed ARUSER software on my PC, connected to the
higher-function VE7CC clusters. I then configured DX4Win to attach to the
local copy of ARUSER for packet spots. This setup gives me much better (and
easier to use) control over packet spot filtering.
-larry
K8UT
----- Original Message -----
From: "Frank R. Oppedijk" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, October 21, 2008 07:18
Subject: [Dx4win] Prefixes/Zones for Spotters bug?
Hi,
I'm using DX4WIN 7.05.04 and I'm trying to get filtering on prefixes to
work. Either I totally misunderstand the way the "Prefixes/Zones for
Spotters" field works, or have discovered a bug.
When I enter OK into the "Prefixes/Zones for Spotters" field, I would
except to receive only spots from spotters in the Czech Republic. However,
I get spots from both Czech and US spotters. It looks as if DX4WIN
interprets the OK as any spots from spotters OK as well as spots from
spotters from substrings from OK (except the first substring - see
further!)!
I did a bit more experimenting (spots from I, K, DL, VK, PA, UA, EA were
available at the DX-cluster at that time):
specified filter prefix spotters displayed from
OK OK, K
OI I
KI I
IK K
ODL DL
OD none (there weren't any OD spots present)
VK VK and K
DLVK VK and K
PAVK VK and K
VKPA PA
So it looks like DX4WIN does the following:
1. It chops the specified filter prefix into chunks (eg. the prefix VK is
split into V and K)
2. It checks which chunks are valid prefixes (V isn't a valid prefix but K
is)
3. It matches the spotters against the whole specified filter prefix (VK)
and all chunks EXCEPT THE FIRST ONE (in this example, only the K chunck is
checked)
The fact that the first chunk is discarded is not visible from the VK
example, but is visible from the KI example (K spotters were discarded),
and similarly from the IK example (I spotters were discarded), and also
from the DLVK, PAVK and VKPA examples.
Now, have I killed too many brain cells in last weekend's party, or have I
discovered quite an intricate pattern-matching bug?
As you may understand, the current behavior is undesired for me, as I
don't have much use for spots from stateside spotters, still get them all
when specifying a filter containing a K, such as OK...
73,
Frank PA4N
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