HomeMy WebLinkAboutGardini Electric Co. Inc.La Cresta Water Tank Repeater Installation
Date: 4/27/05
Submitted to Town of Los Altos Hills
From: Dru Anderson, KG6LAD, chair, Los Altos Hills Emergency Communications Committee
ECC Sub Committee team:
Jim Abraham, repeater subcommittee chair
Scott Overstreet, repeater technical liaison
Ray Egan, antenna subcommittee chair
Reviewed and supported by the ECC committee members at the April project and site review.
Request: For consideration of approval of funds to complete the installation of the Town's repeater,
W6LAH freq. 146.745 at the PHWD La Cresta Water Tank site.
Scope of Work
General
The following is the work description and cost estimate for completion of the Town of Los Altos Hills
Emergency Communications repeater installation at the PHWD La Cresta water tank site.
The purpose of this project is to complete the radio communications facility for the Town of Los Altos
Hills Emergency Communications for the town's emergency communications radio repeater at the La
Cresta water tank site. The facility shall consist of a modified existing tower supporting the antenna, a
pre -fab communications equipment shelter, installation of the shelter pad, and installation of related
power and phone connection service.
The tower supporting the antenna will be a modification to an existing PHWD tower at the tank site
and will be a co -location with the water district antenna. Technical requirements have been jointly
addressed by the water district staff and the antenna/repeater subcommittee of the ECC, as well as
by the Chair of the ECC.
The work and responsibilities for both the Town and for the supporting activities by Purissima Hills
Water District have been reviewed and approved by Patrick Walter for the PHWD.
Site preparation and installation:
1. Prep work (by the Purissima Hills Water District staff):
a. Concrete pad, approximately 50 inches by 60 inches, for the equipment cabinet and
adjacent to the existing tower under modification.
b. Open existing trenches for PVC duct installation, as required for power, coax feeders
and telephone.
2. Installation work including: (by Gardini Electric Co., per attached quotation.)
a. Addition of a 10 -foot tower section resulting in a 40 -foot high tower. This will replace the
functions of the existing temporary 40 -foot pipe mast.
b. Removal and reinstallation of the existing PHWD antenna.
c. Installation of repeater antennas supplied by LAH.
d. Installation of duct for power, coax feeders and telephone, as required.
e. Installation of coax feed lines.
f. Installation of electric power from existing PHWD cabinet to equipment cabinet.
g. Mounting of equipment cabinet on the concrete pad.
3. Installation work including: (by LAH Emergency Communications Committee technical
members.)
a. Installation of the radio repeater.
b. Installation of ancillary equipment within the equipment cabinet.
Estimated Cost:
Purchase of the following: by the Town of Los Altos Hills.
1. Services of Gardini Electric Co per attached quote.
a. Materials: $ 1695.26
b. Labor: $ 3724.00
c. Bucket rental: $ 862.60
d. TOTAL Gardini Estimate: ------------------------------------------ $ 6,281.76
(Note: Bucket rental possibly replaced by use of LAH bucket truck.)
2. Cabinet facility: (Quote #7310, dated 4/13/05, details from DDB Unlimited, Inc.)
a. Estimated cabinet cost for 20D-62DDXC
i. DDB Unlimited, Inc., P.O. Box 669, Wynnewood, OK, 73098
ii. Outdoor Cabinet 62"H x 50"W x 43"D (specs attached) $ 4,999.00
b. Accessories:
i. 2 F25 -12T (Dual 12V fans with thermostat) $116 each; $ 232.00
ii. 2 sets of 62" by 23" racking rails. $60 per set. $ 120.00
iii. 2 37D 19" EIA Mounting trays for the OD-DDX. $60 each. $ 120.00
iv. 1 2CB3-DDXC. Base for 20D-DDXC (3H x 50W x 43D) $ 390.00
v. Delivery Cost: $ 100.00
c. Total Estimated Cabinet Cost:------------------------------------------- $ 5,961.00
3. Antenna:
a. The antenna shall be a vertical monopole, suitable for the
frequency range 144 MHz — 148 MHz.
b. Estimated total:-------------------------------------------------------------- $1,000.00
4. Equipment Contingency estimate @ 1 OW ----------------------------------------- $1,500.00
5. Electrical and Telephone Line Service:
Electrical service will be obtained from the PHWD radio cabinet. Telephone service is TBD,
Telephone cable facilities are on site per a preliminary on-site review by a telco technician.
Additional estimated related electrical/telephone line cost: ----------------- $1,000.00
Total Project Cost Estimate, Labor and Materials: ---------------------------- 15 742.76
Gardini Electric Co. Inc.
Motor Control Industrial Wiring State License 195459
2730 17"' Street San Francisco, CA 94110 (415)-626-4422
(Quote: 4/8/2005)
Re: LaCresta Antenna Tower Changes and Additions.
The following is a list of materials and services we propose to provide for this project.
1. 2-IS-50NX-C1 Polyphaser
2. 2-SA253UA Side arm mounts
3. 1-25G 10 foot tower section.
4. 1-18050SPHS 5 -foot mast.
5. 8-N connectors.
6. 2 -Cable ground kits #204989-1
7. 200 feet LDF4-50 Cable.
8. 1-18XI8X10-rain tight screw cover pull box.
9. 2-3/4 inch plastic cord grip connectors.
10. 20 feet 2 inch PVC Schedule 40 conduit.
11.4-2inch PVC 90 degree bends.
12. 4- 2inch PVC couplings
13.2- 2inch bell ends.
14. 2-2inch terminal adaptors.
15. 2-2inch lockriuts.
16. Material as necessary to install a 120 -volt duplex outlet in the radio enclosure.
17. 1-1/2"X 8 ft ground rod with clamps.
18. Misc. clamps, straps, tie wraps, fasteners, etc.
The cost of the above material is $1695.26.
The cost of labor to install the above material is estimated to be $3724.00.
The cost of a JLG 45 boom/man lift is $862.60 for 2 days including the delivery and pick up fee.
We have not included any work related to the telephone line, as we do not know what the requirements may be
at this time. The radio cabinet is not included in this price.
Sincerely,
Chris Gardini
DDB Unlimited, Inc.
P.O. Box 669, Wynnewood, OK 73098
Outdoor Cabinet 62"H x 50"W x 48"D
20D-62DDXC. This Cabinet is Powder Baked on Cream
Standard 4 Set of 19" Rails
FEATURES: (LAH ECC Note: No picture was available on the DDB website for the specified
20D-62"DDXC. However, it is shorter (62") and cheaper than the one pictured above.)
ALUMASHIELD Top cover, shades cabinet from the sun
HANDLES Stainless steel - NEMA
RAILS Fully adjustable & anodyne coated
DOORS Front and rear secured with three point locks and padlocking handles
VENTS Front & rear, top & bottom, filters supplied
20D-62"DDXC is the superior design in communication cabinets, being as rigid as steel and yet
.ceably lighter than the old heavy steel constructed cabinets. This is made possible with (DDB Unlimited)
i aluminum recipe called ALUMIFLEX. The 20D-62DDXC offers the protection needed for any severe
loor environment. The 20D-62DDXC is constructed of. 125 ALUMIFLEX material, and comes with an
itional .125 ALUMASHIELD top cover. Ultimate security is provided by a three point locking system,
ch utilizes a NEMA stainless steel cabinets. The 20D-62DDXC, made of ALIMIFLEX, will operate
:lout affecting or being affected by RF influences.
WARRANTY: PERIOD: SEVEN YEARS - UNCONDITIONAL
SHIPPING INFORMATION: The 20D-62DDXC is shipped fully assembled.
TOWN OF LOS ALTOS HILLS May 5, 2005
Staff Report to the City Council
RE: AWARD OF CONTRACTS FOR THE EMERGENCY
COMMUNICATION ANTENNA FACILITY AT THE LA CRESTA
WATER TANK SITE
FROM: David Ross, Acting City Enginee(�,__Y&u
APPROVED: Maureen Cassingham, City Manager
RECOMMENDATION: That the City Council adopt the attached resolution
authorizing the City Manager to award contracts for the emergency communication
antenna facility at the La Cresta water tank site in the amount of $15,742.76.
DISCUSSION: The proposed tower improvements on the Purissima Hills Water District
(PHWD)'s water tank site at 12863 La Cresta Drive will provide a repeater antenna for
ham operators collecting information in the field for Town staff in the Emergency
Operations Center. The proposed project will complete the radio communications facility
for the Town's emergency communications.
The facility consists of a 10 -foot extension of the existing antenna to a total height of 40
feet, a pre -fabricated 5'x4'x4' communications equipment shelter, installation of the
shelter pad, and installation of related power and phone connection service (see attached
scope). The tower supporting the antenna will be a modification to an existing PHWD
tower at the tank site and will be a co -location with the PHWD's antenna. The work will
be jointly performed by the PHWD staff, contractors and Town's Emergency
Communications Committee teelmical members. Total project cost is estimated in the
amount of $15,742.76.
BUDGET IMPACT: Sufficient funds are available in the California Law Enforcement
Equipment Program (CLEEP) Fund.
Staff recommends approval of this request. Staff is available to answer any questions that
the City Council or citizens may have.
Attachments: Resolution
Scope of Work and Estimate of La Cresta Water Tank Repeater
Installation submitted by Los Altos Hills Emergency Communications
Committee
Bengineering\COUNCIL ITEM S\2005\0505\Staff Report to connuiication tower.doe