Re: [IRCA] Double-Kaz antenna: Catches and comments
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Re: [IRCA] Double-Kaz antenna: Catches and comments



Your western het on 940 is XEMMM in Mexicali. It has been off frequency for a number of years. One of your SS on 1520 could have been KUNX although it has an extremely serious null to the east to protect KOKC.

KBOI (in KBOI null?)    :)

Date: Fri, 29 Nov 2013 21:25:48 -0600
From: "Mark Durenberger" <Mark4@xxxxxxxxxxxxxxx>
To: "DX @NRC" <am@xxxxxxxxxxx>, "DX-IRCA" <irca@xxxxxxxxxxxxxxxx>,
   "Shafer Mike" <mikegjco@xxxxxxxxx>
Subject: [IRCA] Double-Kaz antenna: Catches and comments

Three weeks ago we set up a Double-Kaz antenna on elevated land overlooking 
the Utah desert; right at the Colorado state line.  We oriented East-West 
for the captures below.  The first report below lists SOME of the signals 
from an EAST-facing deployment; the second list is with the antenna facing 
WEST.   These report ignore stations closer than about 300 miles.

1.  FACING EAST:   After nulling out the backside (using KOAL-750 in Price 
Utah) we report the following stations at 4 PM MST on 111013.  This is just 
a rough first pass with the Perseus SDR; we haven't dug into the tougher 
channels yet, nor have we started looking into the GYs:

0570   WNAX  YANKTON, SD
0650   KGAB   CHEYENNE, WY
0750   KMMJ   GRAND ISLAND, NE
0770   KATL  MILES CITY, MT
0790   KFGO FARGO, ND
0800   CKST  LANGLEY, BC
0860   KKOW  PITTSBURG, KS
0900   KJSK   COLUMBUS, NE
0960   KFLN  BAKER, MT
0980   KDSJ  DEADWOOD, SD
1070   KATQ  PLENTYWOOD, MT
1130   KBMR  BISMARCK, ND
1140   KZMQ  GREYBULL, WY
1150   KSEN  SHELBY, MT
1220   KDDR  OAKES, ND
1270   KIML  GILLETTE, WY
1290   KMMM  PRATT, KS
1320   KOLT  SCOTTSBLUFF, NE
1330   KNSS  WICHITA, KS
1350   KRNT  DES MOINES, IA
1380   KOTA  RAPID CITY, SD
1410   KGSO  WICHITA, KS
1440   KMAJ  TOPEKA, KS
1480   KQAM  WICHITA, KS
1580   KAMI  COZAD, NE
1590   KVGB  GREAT BEND, KS

COMMENT:  The use of 750 in Price Utah as the 'noise' signal allowed us to 
obtain a better-than-40 db null to the West.  There were literally NO 
stations from the West on any channel, with the exception of a weak KSL 
1160, 50 kilowatts at 250 miles.

2.  THE NEXT LIST IS A COMPOSITE OF LOGGINGS MADE AT 5 PM, 6 PM AND 7 PM 
MST...with the antenna facing West and using KOA Denver as the noise signal 
for nulling.  (We were able to take KOA right down into the noise floor.)

0540   KRXA  CARMEL VALLEY, CA
0550   KUZZ  BAKERSFIELD, CA  AND LATER:  KFYI  PHOENIX, AZ
0560   KSFO SAN FRANCISCO, CA  AND LATER:  KBLU  YUMA, AZ
0570   KNRS  SALT LAKE CITY, UT
0580   KMJ  FRESNO, CA
0590   KSUB  CEDAR CITY, UT
0600   KOGO  SAN DIEGO, CA
0610   KAVL  LANCASTER, CO
0620   KTAR  PHOENIX, AZ  (NULLING LOCAL KJOL EAST OF US)
0630   KPLY  RENO, NV
0670   KBOI  BOISE, ID (IN KBOI NULL)
0690   XEWW  (BLOWTORCH ALL EVENING)
0700   KALL  SALT LAKE CITY, UT (WLW STAYS NULLED OUT)
0710   KFIA  CARMICHAEL, CA  (AT 1 KILOWATT!)
0720   KDWN  LAS VEGAS, NV  (IN THEIR NULL; WGN STAYS NULLED OUT)
0750   KHWG  FALLON, NV  (250 WATTS)
0780   KAZM  SEDONA, AZ (250 WATTS)...WHY NO KKOH?
0790   KSPD  BOISE, ID AND KFPT  CLOVIS, CA
0800   KBFP  BAKERSFIELD, CA
0830   KNCO  GRASS VALLEY, CA  (NO WCCO)
0840   KXNT  NORTH LAS VEGAS, NV AND KMPH  MODESTO, CA
0850   NOISE AND WEAK SS...NO KOA!
0870   KLSQ  WHITNEY, NV
0880   KHAC  TSE BONITO, NM  (VERY LITTLE KRVN)
0890   KYWN  MERIDIAN, ID
0900   KBIF  FRESNO, CA
0910   KKSF  OAKLAND, CA
0920   KBAD  LAS VEGAS, NV
0930   KYAK  YAKIMA, WA
0940   KFIG + HET  FRESNO, CA
0960   CFAC  CALGARY, AB
0970   NOT COPIED...SOUNDED LIKE "KW__M"
0980   KSVC  RICHFIELD, UT
1000   KOMO  SEATTLE, WA
1010   CBR  CALGARY, AB
1020   KTNQ  LOS ANGELES, CA AND KCKN ROSWELL, NM
1030   XEBCC  CUIDAD DEL CARMEN, MX
1050   KTCT  SAN MATEO, CA
1060   KKVV  LAS VEGAS, NV
1080   KSCO  SANTA CRUZ, CA
1090   XEPRS  RANCHO DEL MAR, MX (ANOTHER BLOWTORCH)
1100   KWWN  LAS VEGAS, NV AND KFAX  SAN FRANCISCO, CA  (NULLING LOCAL KNZZ 
EAST OF US)
1110   KBND  BEND, OR (NORMAL PEST IS KFAB)
1120   KZSJ  SAN MARTIN, CA
1130   KRDU  DINUBA, CA
1140   KHTK  SACRAMENTO, CA  AND LATER KXST  LAS VEGAS, NV
1150   KAGO  KLAMATH FALLS, OR
1180   KOFI  KALISPELL, MT
1190   KEX  PORTLAND, OR
1200   KYAA  SOQUEL, CA
1210   KHKR  WASHINGTON, UT
1220   KDOW  PALO ALTO, CA
1230   KLAV  LAS VEGAS, NV...THIS WAS AN ACCIDENT; WE HAVEN'T STARTED TO
CHASE GYs YET
1250   KNEU  ROOSEVELT, UT
1260   XEWI  (??)  PUERTO VALLARTA, MX AND LATER KSFB  SAN FRANCISCO, CA
1280   KQLL  HENDERSON, NV
1290   KCUB  TUCSON, AZ AND LATER KPAY  CHICO, CA
1300   KCMY  CARSON CITY, NV
1310   KLIX  TWIN FALLS, ID
1320   KFNZ  SALT LAKE CITY, UT
1330   KWKW  LOS ANGELES, CA AND LATER KLBS  LOS BANOS, CA
1350   KTDD  SAN BERNADINO, CA
1360   KFIV  MODESTO, CA
1370   KSOP  SOUTH SALT LAKE CITY, UT
1380   KTKZ  SACRAMENTO, CA
1390   KLOC  TURLOCK, CA (NO I-D; IDENTIFIED BY FORMAT)
1410   KERI  BAKERSFIELD, CA AND LATER KMYC  MARYSVILLE, CA
1420   KSTN  STOCKTON, CA
1430   KLO  SALT LAKE CITY, UT
1440   KFNY  RIVERSIDE, CA
1460   KENO  LAS VEGAS, NV (NO I-D; IDENTIFIED BY FORMAT)
1470   XEHM  CUIDAD DELICIAS, MX
1500   KSJX  SAN JOSE, CA
1510   KFNN  MESA, AZ AND LATER KSFN  PIEDMONT, CA
1520   ALL SS  (PEST KOKC NULLED OUT)
1530   KFBK OF COURSE  SACRAMENTO, CA
1540   KMPC  LOS ANGELES, CA (KXEL NULLED)
1550   KXEX  FRESNO, CA
1560   KNZR  BAKERSFIELD, CA
1570   KPRO  RIVERSIDE, CA
1590   KLIV  SAN JOSE, CA AND LATER KVTA VENTURA, CA
1600   KTUB  CENTERVILLE, UT

COMMENTS:  Any Double-Kaz non-believers still around?  I want to thank Neil 
Kazaross for explaining the Double-Kaz antenna at the recent joint 
convention.  I became an instant convert when he displayed the EZNEC pattern 
for pickup capability.

After nulling KOA, there were literally NO signals heard from the 
East...with the exception of WHO and WOAI wandering in and out occasionally.

If there's one thing "wrong" with the antenna it's the ultra-wide acceptance 
angle.  We plan to duplicate this DX-Pedition using D-Kaz antennas in 
BROADSIDE ARRAY, narrowing the beam-width.  For this deployment, antenna 
dimensions were 120 feet end-to-end with a 20-foot height.  A 10 db RF 
amplifier was used to overcome the inherently low-level output; most 
noticeable apparent on the low end due to the small size of the array.

Further info available...

Regards,

Mark Durenberger

Sent from my iPad
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