Attachment S - Typical 330-ft State Tower Loading Plan.pdf
PDF 67 KB Posted
- Attached to
- New Germany Communications Tower
- Solicitation number
- BPM054089
- Issued by
- Harford County, Maryland
About this file
This is an antenna loading plan specification document for the New Germany Communications Tower project in Maryland, detailing the required antenna configuration for a 330-foot state tower. The plan specifies 27 antenna positions distributed vertically along the tower structure, with mounting locations ranging from the top (330 feet above ground level) to 90 feet AGL. The antenna configuration includes multiple frequency bands: 700 MHz and 800 MHz systems near the top of the tower using CC-807-11 and BMR-12 models; 450 MHz dual-fed DB 420-D antennas at the 270-foot level; VHF 138-174 MHz DB 224 antennas at the 250-foot level; cellular and PCS systems using DAPA 59210 and DB858HV9 panel antenna arrays at various heights between 210 and 90 feet; and microwave 6.0 GHz HP solid dish antennas positioned at 190 and 130 feet AGL. All antenna connections utilize either 1 5/8-inch, 7/8-inch, or dual 7/8-inch feedlines with N-type connectors as specified for each antenna model.
The loading plan represents a comprehensive multi-system communications infrastructure designed to accommodate public safety, cellular, and microwave transmission requirements across multiple frequency bands within a single tower structure. The typical configuration demonstrates the site's capacity to serve as a central communications hub for New Germany State Park and surrounding areas in Garrett County, supporting simultaneous operation of emergency services, mobile broadband, and point-to-point microwave links. This specification establishes the baseline antenna configuration that the master contractor will need to install as part of the overall tower construction and site improvement project, ensuring compatibility with existing or planned communication networks.
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Text version
ATTACHMENT S
Typical 330’ State Tower Loading Plan
Antenna# Mounting Location
(Measured down from top)
Mounting Location
(AGL)
Antenna Model
Azimuth Frequency Line
Size
To be supplied with tower
1 Top 330 CC-807-11 0 700 MHZ 1 5/8" N
2 Top 330 CC-807-11 120 700 MHZ 1 5/8" N
3 Top 330 CC-807-11 240 700 MHZ 1 5/8" N
Top Less
20’
310 BMR-12 0 800 MHZ
1 5/8" N
Top Less
20’
310 BMR-12 120 800 MHZ
1 5/8" N
Top Less
20’ 310 BMR-12 240 800 MHZ 1 5/8" N
Top Less
40’ 290 BMR-12 0 800 MHZ 1 5/8" N
Top Less
40’ 290 BMR-12 120 800 MHZ 1 5/8" N
Top Less
40’ 290 BMR-12 240 800 MHZ 1 5/8" N
Top Less
60’ 270 DB 420-D 0
450 MHZ
Dual fed antenna
(2) Ea.
7/8"
N
Top Less
60’ 270 DB 420-D
450 MHZ
Dual fed antenna
2 X 7/8" N
Top Less
60’ 270 DB 420-D 240
450 MHZ
Dual fed antenna
2 X 7/8" N
Top Less
80’ 250 DB 224 0
138-174
MHZ
7/8" N
Top Less
80’ 250 DB 224 120
138-174
MHZ
7/8" N
Top Less
80’ 250 DB 224 240
138-174
MHZ
7/8" N
16 Top Less 100’
230 feet
(6) DAPA
59210 Panel Antenna
1710-1990
MHZ
6 X
1 5/8" N
17 Top Less 120’
210 feet
(6)
DB858HV9
0E-SX Panel
Antenna Array
806-896
MHZ
12 X
1 5/8" N
Top Less 140’
190 feet
8' HP Solid Dish
6.000 GHz
EW63 N
21 Top Less 160’
170 feet
(6) DAPA
59210 Panel
Antenna Array
1710-1990
MHZ
6 X
1 5/8" N
22 Top Less 180’
150 feet
(6)
DB858HV9
0E-SX Panel
Antenna Array
806-896
MHZ
12 X
200’
130 feet
220’
110 feet
(6)
DB858HV9
0E-SX Panel
Antenna Array
806-896
MHZ
12 X
240’
90 feet
(6) DAPA
59210 Panel
Antenna Array
1710-1990
MHZ
6 X
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