Keresi Dafala

OCT. 2009-TO-DATE: ORGANIZATION: SAMCOM (K) LTD.
: DEPARTMENT: RADIO & TRANSMISSION NETWORKS.
: RANK: TECHNICIAN-INCHARGE.
: POSITION: TEAM LEADER-NETWORKS.

EXPERIENCE
1. Testing, faulting, repair, alignment and software up-grade of the following digital microwave radio equipments at the SAFARICOM LTD TEST-BENCH: a. Harris MicroStar ODU type 2 & 3, 7 & 15 Ghz, 16, 8, & 4 E1, 1+1 & 1+0 FSK & QPSK.
b. Harris TruePoint ODU 5000, 4040, & 4000, 7 & 15 Ghz, 16, 8, &4 E1, 1+1 & 1+0.
c. Harris Eclipse ODU 300sp, 300hp & 300ep, 7, 8, 11, 13, 15, 18, 23, 32, & 38 Ghz, 4E1-100E1, 1+1 & 1+0.
d. Harris MicroStar IDU type 2 & 3, 4E1-16E1, 1+1 & 1+0, FSK & QPSK.
e. Harris Microstar IDU type 1, 4E1-8E1, 1+1 & 1+0, FSK & QPSK.
f. Harris TruePoint IDU 5000, 4040, & 4000, 8E1-16E1, 1+1 & 1+0.
g. Harris Eclipse IDUsp 4x, 16x, 20x, 155o, IDU ES, & IDU GE 20x, 4E1-STM1.
2. Testing of various types of GSM Antennas at the SAFARICOM TEST BENCH..
3. Testing, faulting, and repairing of BS 240 and BS 241 BTS racks at the SAFARICOM WAREHOUSE TEST BENCH.
4. Installation of:-
a. GSM and Microwave antennas.
b. Feeder systems.
c. RF systems grounding.
d. BTS and associated accessories.
Microwave Radio systems.
5. Testing of Feeder systems and connectors.
6. Alignment of both GSM and Microwave systems antennas.
7. Recovery and Relocation of sites.

DEC. 2008 TO SEPT. 2009: ORGANIZATION: VALUELINE SEVICES LTD
DEPARTMENT: RADIO & TRANSMISSION
SECTION: INSTALLATION & MAINTENANCE
RANK: SENIOR TECHNICIAN
POSITION: TEAM LEADER-NETWORKS
EXPERIENCE

1. Installation and commissioning of Alcatel-Lucent digital microwave radio systems of 0.6m and 0.8m parabolic dish antennas, for Telkom (k) Ltd Orange GSM networks.
2. Installation and commissioning of Alcatel-Lucent GSM BTS for Telkom (k) Ltd Orange networks.
3. Installation and commissioning of NEC PASSOLINK digital microwave radio systems microwave link up-grade project for Safaricom Ltd.
4. Installation and commissioning of ZTE digital microwave radio systems for Essar Telecom (k) Ltd Yu network.

APRIL 2009-JULY 2009: ORGANIZATION: WORLDCOM LTD
SECTION: INSTALLATION
RANK: SENIOR TECHNICIAN
POSITION: TEAM LEADER-NETWORKS


EXPERIENCE
1. Installation and commissioning of HUAWEI AU 500 digital switching system (exchange) for Telkom (k) Ltd fixed landline networks.
2. Installation of HUAWEI main distribution frame (MDF) complete with the associated blocks, jumpers, tie-cables, alarm systems and trunk cables and terminations.
3. Testing of port-to-port and jumper verification.
4. Installation and commissioning of the -48 VDC power rectifier.
5. Installation of the -48VDC standby battery bank.

1992-2008: ORGANIZATION: TELKOM KENYA LTD
DEPARTMENT: PROJECT PLANNING & IMPLEMENTATION
SECTION: RADIO & TRANSMISSION CONSTRUCTION
RANK: SENIOR TECHNICIAN
POSITION: TEAM LEADER

EXPERIENCE
A. INSTALLATION:-
I worked in the Radio Construction section of Projects Planning & Implementation department of Telkom (k) Ltd and rose to the rank of Senior Technician. My duties included installation, commissioning, recovery, and re-deployment of the following telecommunication equipments:
1. HUAWEI Wireless Local Loop CDMA BTS and BSC systems
2. V-SAT Satellite communication systems
3. SDH & PDH microwave radio systems
4. Low, medium, and high capacity digital microwave radio systems
5. Low, medium, and high capacity analogue microwave radio systems
6. LF, HF, VHF, UHF, SHF radio systems
7. Antenna and feeder systems
8. Switching (exchange) systems
9. Telecommunication power supplies and earthing systems
10. ZTE BWA Wireless systems
11. Planning and surveying for network expansion
12. Providing solutions to persistent technical problems to the maintenance technicians
13. Low, medium, and high capacity multiplexing (transmission) systems

B. MAINTENANCE:-
I also worked in radio and multiplexing (carrier) Maintenance section of Telkom (k) Ltd as a technician. My duties involved finding faults, rectifying faults, and undertaking preventive (pre-emptive) maintenance procedures on the following equipments

1-HUAWEI Wireless Local Loop CDMA BTS and BSC systems
2-V-SAT Satellite communication systems
3-SDH & PDH microwave radio systems
4- Low, medium, and high capacity digital microwave radio systems
5-Low, medium, and high capacity analogue microwave radio systems
6-LF, HF, VHF, UHF, SHF radio systems
7-Antenna and feeder systems
8-Switching (exchange) systems
9-Telecommunication power supplies systems
10-ZTE BWA Wireless systems
11-Low, medium, and high capacity multiplexing (transmission) systems