Republic of the Philippines

Province of Negros Oriental

BIDS AND AWARDS COMMITTEE

Capitol Area, DumagueteCity

 

SUPPLEMENTAL/BID BULLETIN

 

Addendum No. 1

 

            This Bid Bulletin is issued to inform prospective Bidders of some changes and/or modifications in the Technical Specifications of the requirements “Installation of One Lot 4 Units Repeater Stations”, for use in the PDRMMC, province of Negros Oriental (T-58-2012, ABC P750,000.00)”.  This shall form an integral part of the Bid Documents.

 

REVISED TECHNICAL SPECIFICATIONS, viz:

 

One Lot bid which comprise the following:

4 units ANALOGUE REPEATER STATIONS with License, consisting of the following

Specification and Details:

VHF/UHF Transceiver Repeater with link; 50 watts maximum

power output with cavity filter.

COMPOSED OF THE FOLLOWING:

Three (3) Sets VHF/FM Antenna 4J (TX)

Three (3) Sets VHF/FM Antenna 4J (RX)

One (1) Set OMNI Antenna

Three (3) Sets VHF/FM Antenna (Link)

Three (3) Sets Radio for Link Systems (VHF/UHF)

220 OR 300mhz

Four (4) Unit Power Supply 30 Amperes w/built in charger

Three (3) Lots Mast tower of 100 feet G.I. Pipe (3 Schedule 40)

One Lot Mast tower of 20 feet G.I. Pipe

Three (3) Sets Dog House (Repeater) (Design – Steel Plate  Size 2 x 3 x 4 feet)

Three (3) Sets Back Up Battery 24 Plates

400 meter Low Loss Coaxial Cable RG-8 with connectors

Four (4) pcs External Fan for cooling system

Three (3) unit Lightning Arrester, Umbrella type cable No. 8 Stranded

NTC Permits and Licenses

Installation

 

2 units Base Radio (Commercial Type) with antenna and Power Supply

1 set VHF ANALOGUE Encoded Repeater System

Specification and Details:

50 watts RF Output with continuous 100% Duty Cycle

New technology digital encoding and decoding circuitry with dual/split code to prevent interference and other unauthorized unit to enter the assigned frequency

Built-in automatic fan cooling system that activates if repeater exceeds the normal operating temperature

Power failure detector

1 year warranty from commissioning

 

-x-x-x-x-x-x-x-x-x-x-x-

For a clearer and better radio communication provincewide (PDRRMC)

 

Bidders are enjoined to take note and use the above mentioned REVISED TECHNICAL SPECIFICATIONS in the preparation of their bids. 

 

For the information and guidance of all concerned.

 

 

DANILO C. MENDEZ

Chairman, Bids and Awards Committee