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About us 2017-05-06T15:53:36+00:00

Contesting to the limits – D4C Contest Station, Cape Verde – Africa


D4C Monteverde Contest Team

OUR STORY
After many attempts in many different places, in 2001 we finally found our new way to live and feel contest competition by approaching to Cape Verde.
D44TC and D44TD stations belong to the past and they are still very present in our good memories.

In 2006 we decided to get into a new, hard and ambitious, project, started from the scratch of the previously existing D4B station build by 4L5A Alex and the we received the D4C callsign that identifies a team specifically born for contesting: The “Monteverde Contest Team” which started the activity in November 2007 in the CQWW DX CW as M/2.

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THE TURTLE – Not only “I FOLLOW D4C” ….
More than 15 years ago, founder members of the D4C Monteverde Contest Team, participated in the CQ WW SSB from Lampedusa Island (Zone 33, IOTA AF-019) which is a nesting site for the Caretta caretta, or Loggerhead (an oceanic turtle distributed throughout the world). By coincidence in Cape Verde there is the third largest nesting population of these turtles the in the world.

MEMBERS
The core team is composed at the moment by 8 members (in alphabetical order): HB9DUR Andrea, I4UFH Fabio, I4YSS Vic, IK2NCJ Luca, IZ4DPV Max and SQ9CNN Rafal, SQ9D Pete and YL2KL Girts

THE LOCATION
The station is located on the Island of Sao Vicente, one of the ten islands that make up the archipelago of Cape Verde with 500’000 inhabitants in total.
Monteverde is the name of the mountain where the station has been established and means Green Mountain.
It is 710m high (2300 ft), without any city building and this give the chance of exploiting a very quiet place with very low “take-off” angles on any direction.
Like all the medals even here there is a flip side, not very pleasant, due to very high daily wind  (speed around 35Mph) and high humidity that very often change in terrible fog. All this make a very harsh and stressful environment for both humans and hardware.

THE STATION
The shack is 120 m2 (1200 square feet) inside a property of about 8’000 m2  (86000 square feet) in which there is a house with 2 bedrooms, 1 bathroom and a large open space where all 6 bands positions can take space together with the kitchen.

Outside 8 towers from 45 to 120 feet high are covering the entire area, which also includes a small garage that protects a 60kVA power generator.
Because everything was erected from scratch from D4B activity (the previous owner), we had the possibility to design a specific hardware according to the location.
First thing we wanted to eliminate all rotators. It is easy to imagine how long they can resist in such an environment.
All antennas are fixed, 4 yagis on each band from 10m to 20m, 2 yagis on 40m and Inv-V dipoles on 80m.
For top-band we use a quarter wave vertical with 60 radials and the HI-Z 4 square+ beverages for RX on low bands.

To control all the hardware we don’t use any commercial device. All the automatic switching system has been designed and realized by ourselves. This includes a 6×4 antenna switch (6 bands antennas shared automatically in 4 positions), band-decoders and antenna switches.
Underground we put about 500 m of ½” coaxial cable and about 100 m of 7/8” coax plus several thousands of feet of electrical cables for services.

About 6 tons of materials have been shipped from Europe from 2007 till now to allow us to turn into reality what was first designed on paper.

THE ANTENNA PARK (all antennas are in fixed directions)

  BANDS ANTENNA BEAMING
Tower 1 28 Mhz 4 X 5 el NA, EU, SA, AF
Tower 2 21 MHz 4 el – 4 el NA – SA
Tower 3 21 MHz / 50 MHz 4 el – 4 el  / 5 el  – 5 el EU – AF / NA – EU
Tower 4 14 MHz / 50 MHz 4 el – 4 el /  5 el NA – SA / SA
Tower 5 14 MHz 4 el – 4 el EU – AF
Tower 6 7 MHz – 3.5 MHz 3 el Wire Yagi + DIPOLE NA
Tower 7 7 MHz – 3.5 MHz 3 el Wire Yagi + DIPOLE EU
Tower 8 1.8 MHz ¼ lambda Vertical with 100 radials Omnidirectional

 

THE ACTIVITY
The station has been active in all modes from 160 to 2 meters collecting more than 360’000 QSOs up do date under three callsigns: D4C, D4Z, D41CV.

There are 6m, 2m, 70cm and 23cm CW beacons running 24/7. The one on 6 meters is often spotted as the only signal on band. We are generally active in HF contests in the Multi OP category, from M/S to M/M. Additionally, due to our position, it happens often to be the only signal present on the 10m-band .

D4C Num. QSO per Band D4C Num. QSO per Band D41CV  Num. QSO per Band
Band CW SSB Dig. TOT Band CW SSB Dig. TOT Band CW SSB Dig. TOT
160m 4656 3164 0 7820 160m 99 0 0 99 160m 0 82 0 82
80m 13808 8677 586 23071 80m 200 150 0 350 80m 19 1054 0 1073
40m 30626 19290 1703 51619 40m 197 174 0 371 40m 987 1839 0 2826
30m 713 0 36 749 30m 41 0 0 41 30m 0 0 0 0
20m 38570 43272 6985 88827 20m 363 3709 0 4072 20m 1066 4729 0 5795
17m 313 0 0 313 17m 0 0 0 0 17m 0 0 0 0
15m 43334 38187 2655 84176 15m 615 1001 0 1616 15m 1178 6695 0 7873
12m 168 80 0 248 12m 1 0 0 1 12m 0 0 0 0
10m 27263 44171 184 71618 10m 493 7116 47 7656 10m 425 1884 0 2309
6m 563 1340 1 1904 6m 0 0 0 0 6m 0 0 0 0
<6m 1 1 0 2 <6m 125 0 0 125 <6m 0 0 0 0
TOT 160015 158182 12150 330347   TOT 2134 12150 47 14331 TOT 3675 16283 0 19958
Total consolitated D4c, D4Z, D41CV=364’636 QSO

 

QSL
We confirm qso via LoTW, E-QSL, via Bureau and via direct with a personalized meter stamp.

 

 

 

Please see the other section of the site for QSL instructions.
We enjoy a wonderful QSL status check and emailing service through www.enzolog.org

THANKS TO
Without the help of some people such a project would never have been possible.
We must thank our technical partners and friends:

  • Momobeam antennas for scoring the antennas on our project
  • To to all of you that constantly call us during any contest.
  • To the 35+ guest operators that allow the team to reach top scores.
  • IT9GCG Enzolog for being flexible in providing the log and QSLing management
  • Here a list of our supporters

OUR CONTACTS
Website               www.d4c.cc
E-mail                 info@d4c.cc
Facebook            www.facebook.com/D4C.STATION
Twitter                twitter.com/D4C_team
Online Store      www.shop.d4c.cc
Snail Mail          Monteverde Contest Club,  6963 PREGASSONA, SWITZERLAND

You are invited to discover more on www.d4c.cc

Vy 73’s and please call us in every contest!

The Monteverde Contes Team