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AH0K Mariana Islands flag Mariana Islands

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Page managed by OH7WV Lookups: 51969

 

Howdy folks, welcome to the QRZ.com page of Mariana Intrepid Contest Club!

Thank You for all the QSOs! 2017 QSL'ing is in the works. Please be patient, we'll answer all directs and upload everything to LoTW, ClubLog and eQSL, plus add all requests to QRZ log.

Please take a look at the special notice on the bottom of the page, thank you. 

Please do not send your QSL to the KH0-address. We do not live at the station. All directs sent there will be answered but possibly with a very long delay as we only check the mailbox a few times per year when we go there.  

As default we will QSL via bureau. Our other QSL information is:

Direct:

       Instructions: Send your QSL to OH6GDX with two green stamps or two IRCs (Please make sure IRC's will be valid at least 6 months after mailing, longer validity time is appreciated). Preference are green stamps.

       Status: All direct requests have been confirmed until the end of 2016

 

LoTW:

       Status: All logs have been uploaded until the end of November 2016

 

ClubLog:

       Status: All logs have been uploaded until the end of November 2016

 

eQSL:

       Status: All logs have been uploaded until the end of November 2016

 

QRZ:

       We only add the QSO's to QRZ.com log upon request. If you wish your QSO(s) to be added on our QRZ logbook, please send a request to the email shown in the details above.

If your call is not in the online logs, it may be one of those few we have miscopied in the heat of a contest. 

___________________________________________________________________________________________________

AH0K is located on Tinian Island, close to San Jose village in the South end of the island.

Tinian Island:
OC-086
USi NI-003S
WLOTA 3108

Grid square: QK24tx

 

Inside the shack:

5 Yaesu FT-1000MP-series radios  (+ some spare MPs)

3 Alpha / OM-Power automatic amplifiers (+ 2 spare manual tune amps)

Band pass filters for all radios, homebrewed station control system, homebrewed automatic antenna switching & power splitting system, adjustable gain & band pass filtered RX-antenna preamplifiers, TX-inhibit system.

Antenna switching:

Plus...a gazillion cables between all the equipment wink Here is a picture showing the initial way of cabling:

...and after rearrangement (still s few cables to do):

 

 

Antennas:

160: Dipole, feed at 18m on a tree:

80: 1/4 GP  +  2el Inv-V beam to EU at 17m  +  2el Inv-V beam to NA at 17m.

40: Dipole  +  2el Inv-V beam to EU at 16,5m  +  2el Inv-V beam to NA at 16,5m

The 80mNA/40mEU is shown here (the 80mEU/40mNA set is similar 50m apart):

 

10/15/20: 2el SteppIR at 12m  +  Force C3 at 12m + Heavy Duty Spiderbeam at 12m; all rotatable.

 

Force C3:

Heavy duty Spiderbeam. Sorry about the bad picture quality:

 

SteppIR:

15m 2el HB9CV at 6m, rotatable - not much used in practice:

 

RX antennas:

EU: ZXR Lobster 160-30 + 100m Beverage

NA: ZXR Lobster 160-30 + 100m Beverage

SA: ZXR Lobster 160-30

 

Please work us when you hear us!

 

Oh, by the way, if you are interested to operate from this station, please email oh6rx (at) sral dot fi and oh7wv (at) sral dot fi.

 

This is the station layout we use for the two running stations. Both are similar located back to back. In fact the actual table setup today is different, but the layout is still the same. Recently we have added inband-stations to both RUNs sharing the same amp and antennas, and a dedicated MULT-station. This picture still gives the best idea what we are operating with.

Bottom left: Antenna selection box. In the picure selected is 40m EU yagi (green LED is lit).

Middle left: Spiderbeam rotator control.

Top left: 2 by 6 -antenna selection control box. Both stations have similar boxes that are controlled by a master station control unit. Back up is manual control, the knob in the center of the box. Own band is shown by a green LED, other run band is shown by a red LED. Automatic control is indicated by an orange LED. The station master control unit also take care of not transmitting on the same band by utilizing Yaesu/Elecraft TX inhibit system. If both RUN-stations, INBAND-stations, or the MULT are on the same band, the LED's at both stations are orange and the TX inhibit signal is sent to all radios, along with an audible warning and flashing light that you can not miss.

In the middle you can see an RF power meter, located on top of the band decoder. Logging computer and CW paddle are in the front.

Bottom right: Yaesu FT-1000MP (we have several of these of different versions, all equipped with roofing filters and adequate IF filters).

On top of the radio:

2el 15m rotator control and on top of it a CW keyer control (homebrewed some 30 years ago).

ZXR LBA1 160/80/40/30 band pass filtered preamplifier with 0-25db adjustable gain for low band RX. On top of it is an ICE band pass filter. Both of these are controlled by the band decoder. Change band on the radio or in N1MM and everything at the station follows the change. Easy!

 

Following pictures show the operators and results since 2012. 

 

 

SPECIAL NOTICE!

AH0K obeys all contest rules and plays a fair game. Here is a friendly reminder about CQWW contest rules:

“All requests for contacts, responses to calls, and copying of call signs and contest exchanges must be accomplished during the contest period using the mode and frequencies of the contest.”, and

“Correction of logged call signs and exchanges after the contest, by use of any database, recordings, email or other methods, is not allowed.”

 

 

8508300 Last modified: 2017-12-12 14:29:47, 13371 bytes

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