This is in response to Clay's question on the effect of a coax switch for
switching coaxial stubs:
I had a 160m stub and 40m stub handy, and I tested 2 configurations on the IFR
network analyzer:
1) 160 and 40 stubs using a simple Tee-connector
2) 160 and 40 stubs attached to Heathkit coax switch and a Tee-connector on
the Common.
The 160m stub nulls: 80, 40, 20, 15, 10 and is cut for CW
The 40m stubs nulls: 20, 10 and is cut for CW
160m stub Tee-connector:
Center Freq. of null: 3.490 7.025 14.085 21.165 28.290
Attenuation in dB: 21 19 18 17.5 16.5
160m Stub w/ Heathkit Sw.
CF of null: 3.470 6.995 14.025 21.075 28.175
Attenuation in dB: 22 20 18 17 16.5
(note: the 160m stub will be most needed for the 80 and 40m bands, and this is
where you should optimize the stub. It is unlikely that you will need the 160m
stub to null out 10 & 15m))
40m Stub Tee-connector:
CF of Null: 13.970 28.110
Attenuation in dB: 26.5 24
40m Stub w/ Heathkit Sw.
CF of Null: 13.730 27.615
Attenuation in dB: 26 24
As a comparision, I tested the 40m stub with an additional 1' of coax on the
end:
40m Stub + 1' with Tee-connector:
CF 13.420 27.060
Attenuation in dB 26.5 24
The comparison was done just to get a feeling of how a small piece of coax
would modify the length vs. the length internal to the coax switch.
In the case of the 40m stub, about 6"of extra stub length would be equal to the
effect of the Heathkit coax switch. What is the net effect on the attenuation
in the ham band? I have found that the 3 dB points of the bottom of the
rejection curve to be approximately +/- 50 kHZ of the center frequency. Thus
the insertion of a coax switch will greatly effect the attenuation of the stub
in the desired band.
You will notice that the center freqs. for the tuned stubs using the Tee-
connector (the way I plan on using them) is not exactly in the CW portion of
the band (these are CW stubs). This is because I have found that if you set
the null on the exact center frequency of the first band, you will be WAY off
on the next dip. Thus I had to balance the 2 center frequencies to optimize
for my particular needs.
The best way to account for the effect of the coax switch is to measure the
whole system (coax switch and stub hooked up together) on as accurate a device
as possible. I have access to an IFR network analyzer, but other tools will do
fine.
I hope this gives you something to benchmark.
Ken, WM2C
>From jayt" <jayt@comtch.iea.com Tue Nov 2 17:33:57 1993
From: jayt" <jayt@comtch.iea.com (jayt)
Subject: CQWW SSB
Message-ID: <m0ouPcE-0002s5C@comtch.iea.com>
>From the Inland Northwest (300 miles from Seattle!)
WA7EGA M/S 1993 CQWW SSB
Band Qso QsoPt Zone Country
160 11 16 6 5
80 31 76 12 19
40 81 223 25 45
20 602 1640 36 113
15 712 1960 31 98
10 104 261 19 52
1541 4176 129 332 = 1,925,136 Claimed
Operators were Hal Wa7ega and myself Jay Ws7i
>From tree@cmicro.com (Larry Tyree) Tue Nov 2 17:19:47 1993
From: tree@cmicro.com (Larry Tyree) (Larry Tyree)
Subject: SprINT results!!
Message-ID: <9311021719.AA24009@cmicro.com>
Here are the results of the second Internet Sprint contest. What follows
are the comments prepared by John, K2MM who checked the logs with his
software. The name tracings are very interesting. You will find out where
all the Lindas and Curl(e)ys came from and how few injected names it takes
to have a significant impact on the contest. Much like a virus!!
The idea of one between XMAS and New Years seems to be well received.
I will work on a good time. We will probably have to extend the log
deadline past 72 hours since some people need to come into work to send
their logs via E-Mail.
See y'all in the CW SS from the legendary W7RM.
Tree N6TR
---------------------------------
Looks like activity was indeed down a bit from last May. Perhaps the World
Serious kept away many casual participants; there were not nearly so many
calls found of non-log-submitting stations.
Date 9310 9305
Logs Submitted 26 29
Calls Worked 47 74
Reported 20m QSOs 1552 2471
Reported 40m QSOs 574 2
Reported Total QSOs 2126 2473
Reported Matched QSOs 1912 2082
Total QSOs 1170 1432
Percent Matched 81.7 72.7
Because each *pair* of Reported Matched QSOs represents one QSO reported
from both ends, half of that number is deducted from Reported Total QSOs to
get Total QSOs.
#OK = your score
#NG = contacts not credited
RXNG = you busted the call/number/name/qth of the station you worked
TXNG = the station you worked busted your call/number/name/qth
DUPE = you worked the same station within 3 previous non-dupes
#OK + #NG is the raw claimed score. #NG is the number of busted contacts.
Some contacts may be busted for more than one reason, so #NG may equal but
never exceed RXNG + TXNG + DUPE. Heavy-duty stations that did not submit a
log were penalized 1 point per unreported QSO! YOUR ANNOTATED LOG IS
AVAILABLE VIA E-MAIL. SEND YOUR REQUEST TO "k2mm@maspar.com".
CALL #OK #NG RXNG TXNG DUPE ACCURACY (each * is 2% above 50%)
n6tr 137 14 2 12 0 90.7 ********************
k2tw 120 6 2 3 1 95.2 **********************
ve4vv 118 6 1 5 0 95.2 **********************
aa5bt 116 11 7 4 0 91.3 ********************
n0ax 109 10 3 7 0 91.6 ********************
w9yh 108 10 5 5 0 91.5 ********************
wc4e 105 14 8 6 0 88.2 *******************
k8jlf 90 7 0 7 0 92.8 *********************
n4tqo 90 12 4 8 0 88.2 *******************
k6xo 85 6 3 2 1 93.4 *********************
nv6o 85 20 7 13 1 81.0 ***************
n7lox 83 20 11 9 0 80.6 ***************
k7gm 82 10 0 9 1 89.1 *******************
k2mm 66 3 1 2 0 95.7 **********************
ve4gv 64 10 4 2 4 86.5 ******************
n6nd 61 14 8 6 0 81.3 ***************
wn3k 61 18 13 3 2 77.2 *************
kd5pj 53 20 13 6 3 72.6 ***********
ab5eu 48 16 9 5 2 75.0 ************
ab6fo 43 7 4 3 0 86.0 ******************
wb5vzl 23 6 5 1 0 79.3 **************
aa5uo 20 2 0 2 0 90.9 ********************
kr2q 14 4 3 1 0 77.8 *************
ve5va 8 0 0 0 0 100.0 *************************
g4buo 2 1 1 0 0 66.7 ********
k1ar -4 4 2 4 0 0.0 No Log (John is always heavy-duty)
wa2srq -85 85 3 85 0 0.0 No Log
w9re -105 105 2 105 0 0.0 No Log
aa6kx -971 1009 8 1000 1 89.8 BUTTHEAD Penalty
NV6O must hate his call! He showed up as N4BO five times in KD5PJ's log and
four times in WN3K's, but not once as NV6O! Also, AB5EU busted K8JLF twice
as K8LJF. In return, both N6ND and N7LOX worked AB5EU as AA5EU!
It seems that once your logging program thinks it knows a QTH, it's hard to
shake the error. WN3K reported three QSOs with WA2SRQ in NY even though SRQ
is in NJ. WB5VZL worked N4TQO (CA) in CO three times, and AB5EU worked K7GM
(NC) in CA twice. Garbage in, garbage out!
#define eRXNR 0x0 /* mis-copied rx'd number */
#define eRXCALL 0x1 /* mis-copied rx'd call */
#define eRXNAME 0x2 /* mis-copied rx'd name */
#define eRXQTH 0x3 /* mis-copied rx'd qth */
#define eTXNR 0x4 /* tx'd number mis-copied */
#define eTXCALL 0x5 /* tx'd call mis-copied */
#define eTXNAME 0x6 /* tx'd name mis-copied */
#define eTXQTH 0x7 /* tx'd qth mis-copied */
#define eTXNIL 0x8 /* tx'd qso not in other stn's log */
#define eDUPE 0x9 /* stn wkd in prev 3 non-dupe qsos */
#define eNGNAME 0xA /* tx'd wrong name */
#define eNGNR 0xB /* tx'd nr dupe or backward */
#define eDUPNR 0xC /* tx'd nr dupe, might be ok */
#define eNOLOG 0xD /* stn wkd did not submit log */
#define eUNIQUE 0xE /* stn wkd is unique */
#define eDCLBUST 0xF /* log declares rx'd call/nr/name/qth busted */
0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xA 0xB 0xC 0xD 0xE 0xF
n6tr 0 0 2 0 3 0 8 1 1 0 0 0 0 10 0 0
k2tw 0 0 2 0 0 0 2 0 1 1 0 0 0 14 0 0
ve4vv 0 0 1 0 2 0 3 0 0 0 0 0 0 9 0 0
aa5bt 4 1 4 1 2 0 2 0 0 0 1 0 0 7 0 1
n0ax 1 0 1 1 2 0 5 0 0 0 0 0 0 10 0 0
w9yh 2 0 2 2 1 1 4 0 0 0 0 0 0 4 0 0
wc4e 2 1 4 2 2 0 4 0 0 0 0 0 0 13 0 0
k8jlf 0 0 0 0 0 2 2 2 1 0 0 0 0 7 0 0
n4tqo 1 0 3 0 2 0 3 3 0 0 0 0 0 15 0 0
k6xo 0 1 3 1 1 1 0 0 0 1 1 0 0 12 0 1
nv6o 1 2 4 0 1 9 5 0 0 1 0 0 0 18 1 0
n7lox 2 1 9 0 2 0 6 1 0 0 0 0 0 10 0 0
k7gm 0 0 0 0 3 1 3 3 1 1 0 0 0 6 0 0
k2mm 0 0 1 0 1 0 1 0 0 0 0 0 0 6 0 0
ve4gv 0 0 4 0 0 0 2 0 0 4 0 0 0 7 0 0
n6nd 2 1 5 0 1 2 3 0 0 0 0 0 0 11 2 0
wn3k 3 6 1 4 1 1 0 0 1 2 0 0 0 8 0 0
kd5pj 1 5 8 0 0 0 6 0 0 3 0 0 0 8 0 0
ab5eu 2 2 4 2 1 2 2 0 0 2 0 0 0 2 0 0
ab6fo 1 0 3 0 1 1 1 0 1 0 0 0 0 7 0 0
wb5vzl 0 0 1 4 1 0 0 0 0 0 0 0 0 4 0 0
aa5uo 0 0 0 0 0 0 2 0 0 0 0 0 0 1 1 0
kr2q 1 0 2 0 0 0 1 0 0 0 0 0 0 4 0 0
ve5va 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
g4buo 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
aa6kx 3 2 3 0 0 0 0 0 0 1 0 0 0 13 0 0
TOTALS 27 22 67 17 27 20 65 10 6 16 2 0 0 206 4 2
1993 October Internet SprINT (Second Running) -- Soapbox and Name Traces
> [Dave/K8JLF] I started the contest with the name Dave. It's curious that
> I never got it back. I was surprised to receive BUTTHEAD on my very first
> QSO! And then SPEW on the second. . . . Am I guilty of "injecting the
> contest" with BUTTHEAD if I didn't originate it?
No, Dave, you passed on whatever you got, which is the right thing to do.
> [Pete/VE5VA] Hope I haven't managed a busted contact in just 8 QSOs!
Yours is the only 100%-accurate entry, Pete!
> [Rick/K7GM] Started with Rick (got it back a few times, but it got lost
> about 50 minutes in). Next time will have a 20 meter and 40 meter beam.
> [Rick/N6ND] Rick was the name for 1st QSO, never heard it agn.
Hmmm. Must be something about Rick that likes to disappear. Maybe it's
that long-lasting short-term memory loss!
> [Eric/NV6O] What a gas! I believe I have asymptotically settled on a
> Sprint or sprINT rate of 52/hr. Only 25/hr to go. Hint to West Coast
> ops: Turn the lights on in the shack at the start of the contest. It's
> tough to see the keyboard later on otherwise.
> [Dave/G4BUO] Conditions very poor from here, but I found three of the
> gang on 40m. Perhaps next time allow stations outside North America to
> use more than 150W?
> [Rob/VE4GV] Hi Tree. Tried my first internet sprINT on the weekend and
> enjoyed it. Used your software for the first time tho I am not sure that
> Sprints are the best way to learn how to use it, especially the first time
> Very nice program and I see the difference it can make. A few more
> contests and I think it will be a help to my score.
> [Charlie/KD5PJ] Start name: MAX (borrowed from 1 of my 2 German Shepards)
> Had some trouble with LOG. Lost some time bouncing back and forth between
> LOG and text editor making LOGCFG changes. In S&P mode, I could NOT hit
> the spacebar after typing callsign. Found it handy to disable visible
> dupesheet. Most of my problems are probably from not playing with it
> until the contest. Great contest, though. My wife even likes it!
^^^^^ ^^^ ^^^^^^^
Amen! I tried learning LOG 10 min before the contest, and ended up punting
with pencil & paper. Unexpected battles with computer hardware all week
chewed up the time I had hoped to use to practice with LOG. Sure glad this
contest doesn't need a dupe sheet! --John
> [Steve/N4TQO] No 40m antenna, so lost momentum around 0140Z when everyone
> truly left 20 for 40m. Finally tried loading the tri-bander on 40 and
> managed 3 Q's, including K2TW who must have VERY good ears to be able to
> hear me in NJ.
> [Ward/N0AX] Had a GREAT time and even heard my own name come back but
> heard other's having trouble with it...hihi. Gonna change my name to BOB!
> [Butthead/Bruce/AA6KX] . . . here is my log. All I ask in return is that
> you find out who bifurcated Curley and Curly.
We all did. It was Matt/AA7BG who injected all those CURLYs, but he had
nothing to do with the sporadic (dis)appearance of CURL(E)Y's penultimate E.
Here are the reported QSOs involving AA7BG:
20 17 w9yh ken il 1 aa7bg curly mt
20 19 aa5bt rich tx 2 aa7bg curly mt
20 19 nv6o burp ca 3 aa7bg curly mt
20 22 wc4e jeff fl 4 aa7bg curly mt
20 9 wb5vzl steve tx 6 aa7bg curly mt
20 27 k2tw dave nj 7 aa7bg curly mt
20 27 n4tqo rick ca 8 aa7bg curly mt
Here are the resulting CURLY/EY name traces. The callsign at the end of the
name trace shows the last person who received the proper name. They either
sent it wrong to the next station, or the next station copied it wrong.
The next line shows the call of the next station with the name they sent.
TxCall Tx# TxName "=" means name sent to log-submitter,
"-" to non-submitter
aa7bg 1 curly ======n6nd-w9re? (CURLY#1)
ab6fo 1 ken ==============w9yh-aa7bg= (CURLY#2)
aa5bt 20 curly ====-==n4tqo=
n6tr 44 curley -k1ar=
k7gm 26 id ========nv6o=
kd5pj 20 curley ===w9yh=
n7lox 48 curly -================-===========-===============aa5bt-w9re=
kd5pj 65 curley ==ve4gv.
k7gm 1 rick ==============nv6o=
aa5bt 19 rich -aa7bg= (CURLY#3)
nv6o 20 curly ==========-===-==ve4gv=
wc4e 44 curley =kd5pj=
nv6o 41 curly ======-====ve4gv-w9re=
k2mm 29 curley ========kd5pj-wa2srq?
kr2q 1 burp =======nv6o-aa7bg= (CURLY#4)
wc4e 23 curly ======ab6fo=
aa5bt 36 ed ===k2mm=
aa6kx 24 steve =====================================-====-=====-==-===
. . . steve ===============k8jlf=ve4gv?
aa7bg 6 curly ==ve4vv-w9re? (CURLY#6)
n4tqo 1 steve ===-==-=======wb5vzl-aa7bg= (CURLY#7)
k2tw 28 curly =
n6tr 36 curley ====wc4e=
ve4vv 37 curly ========-===-==-=-====n6tr=
w9yh 63 curley =
n7lox 58 curly ============-====-==-==-====================n7lox.
k8jlf 1 dave ===========-==========k2tw-aa7bg= (CURLY#8)
n4tqo 28 curly =======-=-=-=====n0ax-w9re=
kd5pj 25 curley =-==k7gm=
k6xo 32 curly ===========nv6o-w9re=
k6xo 50 curley ==n6tr=
n7lox 75 crly =
n6nd 42 curly -===-==================aa6kx.
And an apparently spontaneous CURLY:
kb2nwt 2 charlie =aa5uo=
n6nd 26 kris =-=============w9yh=
n4tqo 80 curly =ve4vv=
nv6o 72 carly =aa5uo=
n0ax 84 curly ====n4tqo=
ve4gv 54 curley -=====-======k6xo-wa2srq?
The most prolific CURLY/EY-Busters (RX and TX combined) were:
4 busts: n6tr(2rx+2tx) nv6o(2rx+2tx) kd5pj(3rx+1tx) w9re(?rx+4tx)
3 busts: n7lox(3rx+0tx) w9yh(1rx+2tx) ve4gv(1rx+2tx) n4tqo(1rx+2tx)
2 busts: k7gm wc4e ve4vv n0ax k6xo aa5bt
To be fair, Matt/AA7BG is not the only op who might have not understood
about sending the name from the previous QSO; viz. Linda/AA5NN:
20 5 wn3k tree de 1 aa5nn linda ok
20 14 n4tqo tree ca 2 aa5nn linda ok
20 18 ve4gv tom mb 3 aa5nn linda ok
20 80 n0ax mike wa 4 aa5nn linda ok
20 97 n4tqo jim ca 5 aa5nn linda ok
> Isn't it amazing how two people got on, made a total of 13 QSOs, turned
> off their radio, but their impact was felt by everyone!! de N6TR.
Here are the remaining name traces. Logs from W9RE and WA2SRQ would have
helped the accuracy of the traces a lot. See you next time! --John/K2MM
k6xo 1 alan ======kd5pj=
k6xo 9 max ====-========-==-=================k2tw-w9re?
> The two lines above show that k6xo started the contest with Alan. There
> were 6 Alan QSOs made and then KD5PJ got it. He sent it back to K6XO, It
> appears that either KD5PJ decided not to have Alan hear his name come
> back and sent Max, or Alan couldn't believe it was his name and mis
> copied it. At any rate, Max lived on for many QSOs.
>
> It lived on for many QSOs. The QSOs shown with = are ones we had both
> logs for. The ones with - we only had one log for. We know that the
> name was sent to k2tw (the - after his call indicates we didn't have a
> log from him). We also know that W9RE eventually showed up sending the
> name MAX (look down the list under MAX, the starting names are in order).
> Therefore, it is likely that W9RE worked K2TW, or maybe a mystery station
> was in the middle?
>
> This shows why we need most of you to send in logs so we can make a
> complete picture of what happens to the names. This information is not
> really used for checking purposes, it is mostly just for fun. de N6TR.
n7lox 1 brian ====================-========-===n4tqo-w9re?
aa6kx 1 butthead =========nv6o=
n7lox 11 erec =
ab6fo 11 ed ============-====n0ax=
k2tw 30 steve -===-=================-=========k2tw-w7wa?
g4buo 1 dave ===n6nd=
n7lox 99 steve ====ve4vv.
aa5bt 1 derek ==n4tqo-wa2srq=
kd5pj 4 berk ============kr2q=
nv6o 23 bert =======-====-======aa5uo-kb2nwt?
wa2srq 65 derek ==========k8jlf=
ve4gv 63 derk ====aa5bt=
n6nd 55 derek -=======n6nd=
n7lox 103 derick =
n4tqo derrick .
ve4vv 1 derrick ======n0ax=
n4tqo 7 derrik =n6tr=
ab6fo 6 derrick -====-==========-====-===-============k2tw=
ab5eu 38 derek ====ve4gv-wa2srq=
ve4vv 61 ward =====-=====================-===============-=====-====
. . . ward =k2mm.
wa2srq 1 edgar =wc4e=
kd5pj 2 edward =
n7lox 4 ed =
wn3k 3 id ========-===-=====-===-==========aa5bt=
kr2q 15 ind -================-=====================-=====-=========
. . . ind ===n6nd-ki6zx?
nv6o 1 eric =-=nv6o-kc2fd=
ab6fo 8 rick =======-===-===========================n7lox-w7wa=
wn3k 41 ward =========-==-===========aa5uo.
w7wa 2 fred ==-===kd5pj=
aa6kx 45 red -==============n6nd=
kd5pj 42 ren ===-===-==nv6o=
w9yh 99 red =====k7gm=
kd5pj 58 len =
k2mm 59 linda =============k6xo.
wb5vzl 1 geo =============================aa5bt?
wc4e 1 jeff -================wc4e-aa7bg?
w9re 70 jim ======-=-==-========n4tqo-aa5nn?
k1ar 1 john ===-==-===========================-=========-======n4tqo=
kd5pj 47 wosn ===n6tr=
wc4e 99 john ==================ab6fo.
> Well, "Wosn" sure got itself corrected! I know I sent WOSN to you Jeff.
> de N6TR
kd5pj 1 max ==aa5bt-wa2srq?
w9re 89 max ===========================n0ax.
w9re 1 mike =========================-==========-=k8jlf=
kd5pj 24 max -=====wn3k-w7wa=
ve4vv 55 jim =-==-=======-====n6nd-wa2srq=
n6nd 51 zaphod ==========================k2tw.
ki6zx 1 pat ============nv6o=
n6nd max .
ve5va 1 pete ========-==ab6fo-w9re?
n6nd 1 rick ====-==n4tqo-aa7bg?
ve4gv 1 rob ==========-=====n6tr=kd5pj?
w9re 18 scrumpy ==w9yh=
n7lox 39 scrmpy =
ab5eu 17 skrimpy ==n6tr=
kr2q scrimpy .
wn3k 1 spew -====-=ve4vv=
ab5eu 5 steve ===============-============-==============nv6o-wa2srq=
k2tw 57 mike =-==-=====-====-====n0ax-aa5nn=
n4tqo 98 linda ======wc4e.
k2tw 1 tom =====-======================-=====ve4gv-aa5nn=
n0ax 81 linda =======================-==================ve5va.
w9yh 1 tor ==kd5pj-wa2srq=
aa5bt 6 max ====-====================================-=k6xo?
n6tr 1 tree ======wn3k-aa5nn=
n4tqo 15 linda =====-=====-=====-===-====================-==-==-=-====
. . . linda ==============k7gm-w9re?
ab5eu 1 trev =n6tr=
k2tw 4 tree =======-==n4tqo-aa5nn=
ve4gv 19 linda -wa2srq?
> I think it is interesting how Tree turned into Linda two separate times,
> by the same station, who only made 5 QSOS. de N6TR
n0ax 1 ward ====k2tw-w9re?
k2mm 1 zaphod ===-============-==-==-====-=======-========-==========
. . . zaphod =============wc4e-wa2srq?
>From Edward Parish <parish@Think.COM> Tue Nov 2 20:42:09 1993
From: Edward Parish <parish@Think.COM> (Edward Parish)
Subject: CH9DH CQWW Results via long path
Message-ID: <9311022042.AA08084@thor.think.com>
Subject: Please forward contest info...
From: NAME: Gerry Hull
TEL: 881-0730
ADDR: ZKO-2 Nashua, NH <hull@AM@XANADU@ADD>
Could you please forward the following CQWW SSB info to cq-contest@tgv.com?
We were also putting up antennas for our M/M operation on Friday... I left
from NH at 6:30 pm on Thursday, got to NB @5:30 am AST and only got 3 hours
sleep until Sat. night!! Great fun though!!!
73,
Gerry.
CH9DH M/M from New Brunswick:
Band Q Z C
160 277 7 14
80 1322 19 72
40 1428 25 99
20 3647 37 142
15 1708 30 122
10 899 24 89
-----------------------------------
4281 142 538
for about 15.1 million. QSLs go to VE1DH.
>From Jim Reisert AD1C 02-Nov-1993 1650 <reisert@wrksys.enet.dec.com> Tue Nov
> 2 21:45:32 1993
From: Jim Reisert AD1C 02-Nov-1993 1650 <reisert@wrksys.enet.dec.com> (Jim
Reisert AD1C 02-Nov-1993 1650)
Subject: Looking for CTY file cugs
Message-ID: <9311022145.AA12283@us1rmc.bb.dec.com>
I also found the callsign "IK9B" in our log. Could be a busted call, but
could this one also be Sicily (IT9)? Did anyone ask?
- Jim
>From k2mm@MasPar.COM (John Zapisek) Tue Nov 2 22:04:13 1993
From: k2mm@MasPar.COM (John Zapisek) (John Zapisek)
Subject: SprINT Results Notes
Message-ID: <9311022204.AA12984@greylock.local>
Tree/N6TR's explanation of the SprINT name traces was fundamentally correct,
except for the indication of who did and did not submit a log. I hope the
following clarification is indeed a clarification. --John/K2MM
k6xo 1 alan ======kd5pj=
k6xo 9 max ====-========-==-=================k2tw-w9re?
The name Alan survived OK for six QSOs. It was correctly received by KD5PJ
on the sixth hop. On the seventh hop, KD5PJ worked K6XO who recorded Max in
his log. Max then survived 34 hops and was correctly received by K2TW who
DID send in a log. He then worked W9RE who DID NOT send in a log (indicated
by a "-" BEFORE his call), and the trace was lost. W9RE probably passed the
name on to another station who did not submit a log. The software isn't
smart enough (yet) to trace names through two consecutive non-submitters.
k2tw 1 tom =====-======================-=====ve4gv-aa5nn=
n0ax 81 linda =======================-==================ve5va.
Similarly, Tom survived 34 hops and was received by VE4GV. It's very likely
that VE4GV sent Tom to AA5NN, who then sent Linda to N0AX. (She sent Linda
to everyone.) Tom was finally received by VE5VA on his last QSO.
When a name changes while going "underground" (through a non-submitter), the
three calls involved are shown because it's impossible to definitely pin the
bust on one exchange or the other. Continuation of the trace is possible
because, in this case, VE4GV's log shows he got #3 from AA5NN and N0AX's log
shows #4 from AA5NN.
Also, the algorithm for dupe checking is a little more subtle than might be
expected. Valid QSOs with the same station must be separated by at least
three other NON-DUPE QSOs. The examples below show how dupe-checking would
have been with the simple algorithm (Alg#1) and how it is with the improved
algorighm (Alg#2). The second example shows how one dupe can cause another.
Alg#1 Alg#2 Alg#2
WA1PID OK OK WB2WOI OK
WB2OEU OK OK WA1MUG OK
WB2OEU DUPE DUPE K1ZND OK
WB2OEU DUPE DUPE WA1NLT OK
WA1PID OK DUPE WB2WOI OK
WB2OEU DUPE DUPE K1ZND DUPE
WB2OEU DUPE DUPE WB2DRW OK
WB2OEU DUPE DUPE WA2CAL OK
WA1PID OK DUPE WB2WOI DUPE
>From Steve Lund <stevel@hpsrfh.sr.hp.com> Tue Nov 2 23:09:07 1993
From: Steve Lund <stevel@hpsrfh.sr.hp.com> (Steve Lund)
Subject: IC22A & DRSI DPK-2
Message-ID: <9311022309.AA06194@hpsrfh.sr.hp.com>
I'm trying to use an ICOM IC-22A with a DRSI DPK-2 TNC. The
TNC connects ok with other stations, but I get no returned
packets. In monitor mode I copy packets just fine. From trial
and error I've determined that if the other station sets his
TXDELAY to at least 40 (400ms) everything works just fine.
Unfortunately, this is the only radio on the local PacketCluster
that needs a TXDELAY greater than 100ms.
I suspect that the receiver is not recovering fast enough,
when going from transmit to receive. I've noticed that there is
a large DC spike on the IC-22A audio line when it goes into
receive. This is improved by putting 8 ohms across the line to
simulate a speaker. I haven't had time to measure the actual
receiver recovery time, but I hope to within the next week.
Before I go into the radio and figure out what circuit is at
fault, I thought I'd see if anyone on the reflector has already
fixed this problem.
Any information would be greatly appreciated.
73,
Steve WA8LLY/6
>From Rich K2WR <72407.1262@CompuServe.COM> Wed Nov 3 02:58:44 1993
From: Rich K2WR <72407.1262@CompuServe.COM> (Rich K2WR)
Subject: Trivia quiz
Message-ID: <931103025844_72407.1262_FHG88-2@CompuServe.COM>
In his message analyzing the Internet Sprint results, K2MM put forth an
example demonstrating the operation of different dupe-checking algorithms.
The callsigns used in the example were: WA1PID, WB2OEU, WB2WOI, WA1MUG,
K1ZND, WA1NLT, WB2DRW, and WA2CAL. Can anyone identify ALL of these
individuals? Anyone who ever held any of these callsigns, or ever
lived with any of them are not eligible. The winner will earn a
junky prize selected by me.
In the unlikely event of multiple winners, multiple even-junkier prizes will
be awarded.
/x
Hint: None of the above callsigns are currently valid.
de Rich K2WR
>From Dieter Dippel" <UNRZ45@daphne.rrze.uni-erlangen.de Wed Nov 3 08:12:54
>1993
From: Dieter Dippel" <UNRZ45@daphne.rrze.uni-erlangen.de (Dieter Dippel)
Subject: REVIEW
Message-ID: <89DB55362F2@daphne.rrze.uni-erlangen.de>
[] name: Dieter DIPPEL
[] callsign: DF4RD
[] mail: Fenitzerstr. 33; D-90489 Nuernberg
[] internet: UNRZ45@daphne.rrze.uni-erlangen.de
[] X.400: Dieter.Dippel@rrze.uni-erlangen.d400.de
[] packet: DF4RD@DB0BOX.#BAY.DEU.EU
>From Dieter Dippel" <UNRZ45@daphne.rrze.uni-erlangen.de Wed Nov 3 08:13:13
>1993
From: Dieter Dippel" <UNRZ45@daphne.rrze.uni-erlangen.de (Dieter Dippel)
Subject: QUERY
Message-ID: <89DB6BB4E69@daphne.rrze.uni-erlangen.de>
[] name: Dieter DIPPEL
[] callsign: DF4RD
[] mail: Fenitzerstr. 33; D-90489 Nuernberg
[] internet: UNRZ45@daphne.rrze.uni-erlangen.de
[] X.400: Dieter.Dippel@rrze.uni-erlangen.d400.de
[] packet: DF4RD@DB0BOX.#BAY.DEU.EU
>From Dubberstein Steve" <dubberstein_steve@msmailer.hkimd.cig.mot.com Wed Nov
> 3 11:34:52 1993
From: Dubberstein Steve" <dubberstein_steve@msmailer.hkimd.cig.mot.com
(Dubberstein Steve)
Subject: VS6WO CQWW SSB M/M Score
Message-ID: <9311040018.AA21550@hkcmpc1.hkimd.cig.mot.com>
CQ WORLD WIDE DX CONTEST 1993
Call: VS6WO Country: Hong Kong
Mode: SSB Category: Multi Multi
BAND QSO QSO PTS PTS/QSO ZONES COUNTRIES
160 5 8 1.60 2 5
80 581 1096 1.89 25 65
40 1554 2862 1.84 32 96
20 1984 4049 2.04 35 114
15 2939 5990 2.04 35 120
10 1763 2677 1.52 28 90
---------------------------------------------------
Totals 8826 16682 1.89 157 490 => 10,793,254
Operators: VS6WO, 9V1YC, KJ4VH, OH0XX, VR2GO, VS6YHT
Notes: All antennas on 1/2 of an apartment rooftop. No cluster.
regards, steve VS6WO/NA9D
>From Jim Reisert AD1C 03-Nov-1993 0743 <reisert@wrksys.enet.dec.com> Wed Nov
> 3 12:38:46 1993
From: Jim Reisert AD1C 03-Nov-1993 0743 <reisert@wrksys.enet.dec.com> (Jim
Reisert AD1C 03-Nov-1993 0743)
Subject: CQWW SSB Score: GM0ECO 80 meters
Message-ID: <9311031238.AA04375@us1rmc.bb.dec.com>
Forwarded message:
Subject: GM0ECO CQWW Score
de GM0ECO
80M Single Band (I must be mad) No Packet
Q's Zones Countries
1420 19 79 Score 184K
Ants
2 40' Phased verticals
Horizontal loop (for locals)
2 600' beverages (e/w and n/s switchable)
Conditions were not too good despite an A index of 2 and a K of 0!!
Lots of stations about but not too much in the way of long distance dx. I
worked about 200 US stations but only the odd one in W5 and W6. No W7's
or anything further west than VE3. Beaming east was just as bad. Didn't
hear VS6WO at all. Only one PT7 to represent South America (excluding
zone 9). Did anyone west of W0 hear many Europeans? I'm sure 80 was
better last year.
If there are any UK stations reading this, do you know how to get hold of
G0KPW's 80m op (Chris). I wouldn't mind getting a breakdown of their
score.
By the way, for Walt's benefit, I was called by around 10 shetland
stations and all were picked up by Jim's latest .cty file. Very impressed
Jim.
Andy
GM0ECO
burns_al@grrd04.dnet.bp.com
End forwarded message
|