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SECTION 926 — Wireless Communications Equipment
926.1General Description
Furnish, install, test, and provide warranty and training for wireless communications equipment comprised of equipment and materials as specified herein and shown in the Contract documents. 926.1.01 Definitions, Acronyms, and Abbreviations
A.Definitions
1.Wireless System, Type 1: a 900 MHz, 2.4 GHz, or 5 GHz wireless Ethernet radio transceiver and associated
equipment.
2.Wireless System, Type 2: a 2.4 GHz or 5 GHz broadband wireless Ethernet transceiver and associated
equipment.
3.Wireless System, Type 3: a 2.4 GHz. or 5 GHz broadband wireless Ethernet transceiver and associated
equipment.
4.Wireless System, Type 4: a broadband cellular wireless Ethernet router and associated equipment.
B.Acronyms and Abbreviations
Refer to Sections 101.01 and 942.1.01.B for a list of acronyms, abbreviations, and terminology used in this section. 926.1.02 Related References
A.GDOT Standard Specifications
1.Section 639 – Strain Poles for Overhead Sign and Signal Assemblies
2.Section 682 – Electrical Wire, Cable, and Conduit
3.Section 694 – Weather Monitoring and Reporting System
1.Refer to Section 942.1.02.B for a list of standards and documents referenced in this section.
926.1.03 Submittals Refer to Section 942.1.04 for submittal requirements. Requirements for wireless system equipment, materials, and components are specified herein. 1858
SECTION 926 — Wireless Communications Equipment
926.2Materials
926.2.01 Wireless Communications System Requirements
A.General
1.Comply with ISO 9001 or Six Sigma quality manufacturing requirements.
2.Provide only equipment and materials that are of new and of like kind and function provided by one
manufacturer, using the same model, part number, and revision.
B.Overall System
1.Provide wireless system that supports the following site configuration types: PtP, PtMP (access point /
subscriber unit) and repeater as shown in the Contract documents.
2.Provide a single-band or dual-band radio that is either integrated with an antenna unit or as an alternative a
single radio with an external antenna.
3.Provide capability for the user to select transmit power output level in incremental steps up to the maximum
transmit output power.
4.Provide maximum transmit power, antenna gain that provides an EIRP as permitted by FCC Part 15 for
unlicensed frequencies. Select final transmit power and antenna gain based on manufacturer’s recommendation and distance and signal strength.
5.Provide a wireless link with path availability of 99.99% in worst-case weather conditions for the area where it
is installed.
6.Provide wireless system with a minimum MTBF of 200,000 hours using Telcordia SR-332, latest version, or
MIL-HDBK-217F standards.
7.Provide wireless system with dynamic frequency and channel selection capability based on interference
detection, with a manual override option.
8.Provide wireless system with adaptive or automated modulation and space diversity capability for
maximum throughput.
9.Provide wireless system with receive sensitivity that is adaptive.
10.Provide wireless system with a VSWR value not exceeding 2.0:1 for the specified radio frequency.
11.Design equipment for ease of maintenance. Ensure that all component parts are readily accessible for
inspection and maintenance using hand tools. Provide test points for checking essential voltages, waveforms, signals, and similar data
12.Provide support for the following minimum network and security requirements:
b.Comply with IEEE 802.1D (Ethernet Bridging) standard.
c.Comply with IEEE 802.1p (Traffic Prioritization/Quality of Service) standard.
d.Comply with IEEE 802.1q (Virtual LAN [VLAN]) standard.
e.Comply with IEEE 802.1d (Spanning Tree Protocol) and IEEE 802.1w (Rapid Spanning Tree
Protocol) standards.
f.Comply with IEEE 802.3x (Full Duplex and Flow Control) standard.
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SECTION 926 — Wireless Communications Equipment
g.Provide at a minimum AES-128-bit (AES-128) encryption capability, FIPS197, keys set through password-
protected browser interface for PtP backhaul network. Minimum security for communications with WiFi units is WPA2.
h.Provide support for internal MAC address control list and RADIUS networking protocol for authentication,
authorization, and accounting.
13.Provide wireless system that meets the following minimum radio configuration and management software
requirements:
a.Provide programming and software to make operational and support the wireless system with the
following minimum features: radio and network configuration, diagnostic routines (i.e., bandwidth test, spectrum scan, and ping test), and alarm management.
b.Provide capability to display or provide status information of indicators that include data port link activity,
data port speed, and link status.
c.Provide capability to display the following alarm features:
i.Provide 24 hour monitoring capability for user-selected alarms.
ii. Provide optional alarm notifications via email or text messages.
14.Provide wireless system with bi-directional communications.
15.Provide wireless system including connectors that are IP67 weathertight rated and UV stabilized.
16.Provide wireless system with alignment tool for aligning the antenna system. Provide alignment tool that
consists of audible indicators, or as recommended by the manufacturer.
17.Equip wireless system with a minimum of one shielded Ethernet-port, using an IP67 rated RJ-45 weathertight
connector or other Ethernet-compatible locking shielded and weathertight connector.
18.Comply with FCC Part 15.247 (ISM) requirements.
C.Type 1 Wireless System
Meet the following system requirements, in addition to the requirements specified in Section 926.2.01.B:
1.Provide a system that operates in the FCC unlicensed (license-exempt) ISM band of 900 MHz, 2.4 GHz, or
5 GHz.
2.Provide aggregate system throughput of up to 10 Mbps in a LOS environment.
3.Provide a flat panel type, single (H or V) or dual polarized (H+V), narrow beam-width antenna, Yagi, or
omnidirectional or as recommended by the wireless radio manufacturer.
4.Provide wireless system with minimum channel bandwidths of 5 MHz, 10 MHz, and 20 MHz.
5.Provide wireless system with OFDM or DSSS modulation technology.
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SECTION 926 — Wireless Communications Equipment
D.Type 2 Wireless System
Meet the following system requirements, in addition to the requirements specified in Section 926.2.01.B:
1.Provide a system that operates in the FCC unlicensed (license-exempt) ISM band of 2.4 GHz or 5 GHz.
2.Provide aggregate system throughput of up to 50 Mbps in a LOS environment.
3.Comply with IEEE 802.11a/n standard.
4.Provide a 2x2:2 MIMO flat panel type, dual polarized (H+V), narrow beam-width antenna or alternative
parabolic or as recommended by the radio manufacturer.
5.Provide wireless system with minimum channel bandwidths of 5 MHz, 10 MHz, 20 MHz, and 40 MHz.
6.Provide wireless system with OFDM modulation with BPSK, QPSK, QAM16, and QAM64.
7.Provide wireless system that supports MCS with dynamic data rate selection.
8.Provide wireless system with full support of SSL technology.
9.Provide wireless system that supports the following network requirements:
a.Provide forward error correction capabilities with automatic retransmission.
b.Provide dynamic allocation of uplink and downlink bandwidth.
c.Provide capability for jitter correction to avoid delay fluctuation in video streams.
d.Provide data burst transmission capability so that fragmented packets are transmitted together.
e.Provide the capability to use a polling protocol to reduce packet loss due to RF collisions.
f.Provide support for Layer 2 features including QoS and IGMP snooping to reduce un-needed
multicast traffic.
10.Provide local and remote management capabilities through HTTP, Telnet, SSH, and SNMP.
E.Type 3 Wireless System
Meet the following system requirements, in addition to the requirements specified in Section 926.2.01.B:
1.Provide a system that operates in the FCC unlicensed (license-exempt) ISM band of 2.4 GHz or 5 GHz.
2.Provide aggregate system throughput of up to 100 Mbps in a LOS environment.
3.Comply with IEEE 802.11a/n standard.
4.Provide a 2x2:2 MIMO flat panel type, dual polarized (H+V), narrow beam-width antenna or alternative
parabolic or as recommended by the radio manufacturer.
5.Provide wireless system with minimum channel bandwidths of 5 MHz, 10 MHz, 20 MHz, and 40 MHz.
6.Provide wireless system with OFDM modulation with BPSK, QPSK, QAM16, and QAM64.
7.Provide wireless system that supports MCS with dynamic data rate selection.
8.Provide wireless system with full support of SSL technology.
9.Provide wireless system that supports the following network requirements:
a.Provide forward error correction capabilities with automatic retransmission.
b.Provide dynamic allocation of uplink and downlink bandwidth.
c.Provide capability for jitter correction to avoid delay fluctuation in video streams.
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SECTION 926 — Wireless Communications Equipment
d.Provide data burst transmission capability so that fragmented packets are transmitted together.
e.Provide the capability to use a polling protocol to reduce packet loss due to RF collisions.
f.Provide support for Layer 2 features including QoS and IGMP snooping to reduce un-needed
multicast traffic.
10.Provide local and remote management capabilities through HTTP, Telnet, SSH, and SNMP.
F.Type 4 Wireless System
1.Provide an integrated broadband cellular wireless router only as listed on the GDOT QPL and as approved by
the Department’s current cellular telecommunications service provider. No other devices are permitted.
2.Provide wireless system meeting the following general requirements:
a.Provide 4G LTE or greater throughput as specified in the Contract documents or directed by the
Department.
b.Provide a broadband cellular wireless router that meets the following minimum network standards and
protocols:
i.Comply with IEEE 802.3 standards for 10/100/1000 Mbps Ethernet.
ii. Provide full support for SSL. iii. Provide full support for IPsec and VPN functionality. iv. Provide at a minimum AES-128 encryption capability.
v.Support MAC address filtering and ACL.
c.Provide capability for network traffic to be accessible via a public or private IP connection, via VPN tunnel
with SSL, IPsec, and IP pass-through.
d.Equip wireless system with a minimum of one 10/100/1000 Base-T/TX, shielded Ethernet-port, outdoor-
rated RJ-45 connector or other Ethernet-compatible weathertight connector.
e.Provide wireless system with visual status indicators that include Power, Signal, Ethernet Link,
and Activity.
3.Provide wireless system meeting the following antenna requirements:
a.Provide an external ruggedized antenna for broadband wireless operations meeting the following
minimum requirements:
i.A minimum gain of 4 dBi, vertical polarized.
ii. Omnidirectional pattern. iii. Up to 100W power. iv. Multiband support including the 698 to 960 MHz and 1,700 to 2,700 MHz bands.
b.Provide mounting hardware as recommended by the manufacturer.
c.Provide RF coaxial cable as specified in Section 926.2.01.J.3 between the wireless router and the
antenna. 1862
SECTION 926 — Wireless Communications Equipment
G.Mechanical
1.For non-integrated types provide a wireless radio that is capable of being rack- or shelf-mounted in a secure
manner.
2.Provide wireless equipment that is modular in design such that it can be easily replaced in the field.
3.For Types 1 to 3 only, unit dimensions and weights shall be as follows:
a.Maximum dimensions shall be 16 in (0.4 m) by 16 in (0.4 m) by 12 in (0.3 m) for integrated units, not
including the antenna.
b.Maximum weight shall not exceed 35 lb (16.9 kg).
4.Use external screws, nuts, and locking washers that are stainless steel. Do not use self-tapping screws unless
specifically approved by the Department.
5.Use mounting hardware and parts made of stainless steel.
6.Use materials in construction that are protected from fungus growth and moisture deterioration.
7.Separate any dissimilar metals by an inert dielectric material.
H.Electrical
1.Provide wireless radios and routers that meet all specified requirements when the input power is
120 VAC ±20%, 60 Hz ±3 Hz.
2.Provide appropriate voltage conversion, PoE injectors, or other power supply hardware if the radio equipment
or any radio-related ancillary devices require operating voltages other than 120 VAC or rely on PoE or PoE+.
3.Provide voltage converters or PoE injectors that accept an input voltage of 120 VAC as noted above.
4.Provide any required PoE or PoE+ devices that are 802.3af or 802.3at compliant, meeting the power
requirements of the radio equipment.
5.Provide PoE injector that can be either wall/panel mounted, or DIN-rail mounted within the field cabinet.
6.Provide devices that meet the requirements in Section 2.1.4, "Power Interruption," of NEMA Standard TS 2.
7.Provide devices that meet the requirements of Section 2.1.6, "Transients, Power Service," of NEMA
Standard TS 2.
I.Mounting and Support Structure
1.Provide wireless equipment mounting hardware that is designed to mount to the support structure as shown
in the Contract documents.
2.Provide pole mounting attachment hardware that meets the requirements of the wireless system survey and
the wireless manufacturer. 1863
SECTION 926 — Wireless Communications Equipment
J.Cabling and Surge Protection
1.Provide antenna coaxial cables as specified herein for external antenna (non-integrated radio and antenna)
sites or outdoor-rated Category-6 cables for integrated radio/antenna sites.
2.Provide outdoor-rated, shielded Category-6 cabling from the PoE injector to the wireless radio meeting the
following minimum requirements:
a.Comply with TIA-568-C.2 standard.
b.Comply with ICEAS-56-434 standard or equivalent industry standard as approved by the Department for
communications cables for outdoor use including weathertight, outdoor CMX UV-rated, abrasion- resistant jacket.
c.Provide cable that is UL 444 sunlight resistant listed.
d.Provide insulated No. 22 to 23 AWG, solid bare copper conductors with polyolefin insulation, arranged in
four color-coded shielded twisted-pairs with drain wire incorporating a cross-web separator design.
e.Provide modular IP67-rated shielded RJ-45 8P8C male push-pull connectors with eight-position non-
keyed and eight gold anodized pins or other Ethernet-compatible locking weathertight connector.
3.Provide an RF coaxial cable meeting the following minimum requirements.
a.Provide a cable that is flexible, low-loss, outdoor-rated and weathertight.
b.Provide nominal impedance that is matched to the antenna’s impedance to minimize the VSWR.
c.Provide a cable with a black UV-resistant polyethylene jacket.
d.Provide a cable with a dual shield consisting of 100% foil and 88% braided.
e.Provide shielding effectiveness of >90 dB.
f.Provide solid bare, copper center conductor.
g.Provide a characteristic impedance of 50 ohms, nominal.
h.Provide a cable with maximum frequency of 6 GHz.
i.Provide an attenuation of 3.9 dB/100 ft. (at 900 MHz) or better. If cable length is shorter than 20 ft. (6.1 m),
the cable can be smaller in diameter with a maximum attenuation of 9.9 dB/100 ft.
j.Provide a capacitance (conductor to shield) of 23.9 pF/ft. or better, nominal.
k.Provide an inductance of 0.060 µH/ft or better, nominal.
l.Provide Type N connectors or as recommended by the manufacturer that are weathertight and factory
installed on both ends with a maximum insertion loss of 0.2 dB.
m.Provide maximum cable length of 10 ft. (3.05 m) from radio to antenna (if not integrated) when radio is
mounted on an external structure. Provide 100 ft. (30.5 m) maximum length from radio to antenna when radio is mounted in the field cabinet and antenna is mounted on the structure. 1864
SECTION 926 — Wireless Communications Equipment
4.Provide wireless system with surge protection that meets the following minimum SPD requirements.
a.Category-6 Ethernet PoE Surge Protection
i.Provide SPD that is listed per UL 497B.
ii. Comply with TIA-568-B. iii. Comply with IEEE 802.3af or IEEE 802.3at as required. iv. Support 10Base-T, 100Base-T, and 1000Base-T transmission speeds.
v.Provide a peak surge current rating (Imax) of a minimum of 10 kA (8/20 µs waveform).
vi. Provide a clamping voltage of up to 90V ±20% for L-G and 20V ±20% for L-L vii. Provide surge protection for all connector pins. viii. Provide input and output connections with shielded RJ-45 connectors. ix. Provide an in-line, series-connected configuration.
x.Provide system capable of being either wall/panel or DIN-rail mounted.
xi. Provide an SPD that is constructed of aluminum metal housing.
b.RF Coaxial Surge Protection
i.Provide SPD that is listed per UL 497E.
ii. Provide a rated nominal surge current (In) per UL 497E of 10 kA (8/20 µs waveform). iii. Provide a rated power/current (RF, DC) per UL 497E: VHF 375W, UHF (low) 250W, 800 MHz to 1 GHz 125W. iv. Provide a protection level of <1000V for up to 375W SPD.
v.Provide an insertion loss of ≤0.2 dB over wireless system frequency range.
vi. Provide SPD that supports a VSWR of 1.3:1. vii. Provide SPD with field replaceable gas discharge tube for maintenance. viii. Provide SPD with minimum environmental protection rating of IP65. ix. Provide SPD with mating connectors per antenna type.
c.Provide hardware and materials to bond SPDs to the field cabinet ground buss bar.
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SECTION 926 — Wireless Communications Equipment
K.Environmental
1.Provide wireless equipment and components as specified herein that meet the following minimum operating
ambient temperature range and humidity levels:
a.−4°F (−20°C) through 131°F (55°C)
b.Up to 95% relative humidity (non-condensing)
2.Comply with NEMA 250, Type 4X corrosion requirements.
3.Comply with IEC EN 61000-4-5 surge immunity testing requirements.
4.Comply with NEMA TS 2 Sections 2.2.8 (vibration) and 2.2.9 (shock) test requirements.
5.Provide wireless system that is capable of withstanding wind speeds of 100 mph (161 kph) with a 20%
gust factor.
6.Comply with FCC Part 15 emission standard and FCC Public Notice 2019-01.
926.3Construction
The construction and installation of the wireless system equipment, materials, components, and assemblies as specified herein shall meet the requirements in this section and the wireless system manufacturer’s installation requirements and recommendations. 926.3.01 Construction Requirements
A.General Construction
1.Provide, install, and test equipment and materials to provide a fully operational and functional wireless
radio system. This includes installation of radio wireless radio equipment, mounting attachment hardware, power and data cables, test equipment, grounding and bonding, lightning suppression, and surge protection systems.
2.Prior to beginning installation, inspect each site to verify suitability of the design for installation, grounding,
and lightning protection.
3.Adjust antenna polarities and channel plans on equipment to minimize interference from other sources, as
applicable and determined by the wireless system survey.
4.Provide equipment that is modular in design such that it can be easily replaced in the field.
5.Label equipment with UV-resistant methods to identify each unit with name, model number, and
serial number.
6.Provide connectors and harnesses that meet the following requirements:
a.Provide external connections using weathertight connectors.
b.Provide connectors that are keyed to preclude improper mating or coupling.
c.Provide wires to and from the connectors that are color-coded or marked.
d.Provide pins and mating connectors that are corrosion resistant.
e.Provide solder type connections that are covered and protected by heat shrink tubing.
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SECTION 926 — Wireless Communications Equipment
B.Wireless System Survey
1.Conduct wireless system survey if required by the Contract documents and upon approval of wireless system
equipment and test equipment submittals.
2.Provide test equipment to conduct wireless system survey. Submit a list of equipment to the Department for
approval prior to conducting the survey.
3.For Type 1, 2, and 3 only, survey wireless locations and provide a site-by-site analysis and overall system
survey field report.
a.Verify that the path is clear and provide calculations to show that there is sufficient fade margin to achieve
the path availability and to meet overall network performance as specified herein under the expected weather events.
b.Include an interference analysis of local RF conditions and a path analysis for each wireless node as
shown in the Contract documents.
c.Provide an interference analysis for each wireless node location to identify potential sources of
interference. If the interference analysis shows possibility for interference at sites identified in the Contract documents, conduct in-field monitoring to determine whether actual interference exists.
d.Include a field evaluation of the feasibility of using existing poles or structures for mounting the integrated
wireless radio/antenna system.
e.Recommend based on the survey whether a single or dual-band radio is required to meet
performance requirements.
f.Determine whether repeaters are required as part of the field survey and report the results.
4.For Type 4 only, determine and verify broadband cellular coverage for each proposed site. Each site shall
have sufficient signal strength to provide full performance of the wireless link.
5.Submit the wireless system survey report to the Department for review and approval. Do not purchase or
install equipment related to the wireless network prior to the approval of the wireless system survey report. Refer to Section 942.1.04 for details on submittal requirements.
C.Radio Mounting
1.Provide and install corrosion resistant radio mounts, standoffs, brackets, hardware, and grounding assemblies
for the mounting surface shown in the Contract documents.
2.Install radios as recommended by the manufacturer at specified locations as shown in the Contract
documents.
D.Antenna Mounting
1.Install antennas as recommended by the manufacturer. Permitting for attachment of wireless equipment on
existing poles, if required, shall be the responsibility of the Contractor.
a.Verify with the local power service provider to ensure that the provided equipment is compatible with the
installed equipment.
b.Contractor shall be responsible for paying for electrical service as required from the time of testing up to
the issuance of the MAL by the Department at which time the service provider account shall be transferred to the Department.
3.Supply and install any additional equipment required for proper operation of the wireless system per
the design
4.Comply with grounding and bonding requirements in Section 682 for wireless system, structure, and field
cabinet, and as required and recommended by the wireless manufacturer.
5.If the field cabinet and associated entry port is not collocated on the same support structure as the radio,
provide grounding and lightning protection at the bottom of the support structure.
F.System Optimization
Finalize equipment alignment and settings at each site to provide a complete and operational system.
G.Cabling
1.Provide conductors and wiring that meet NEC requirements.
2.Provide copper-based Ethernet cables that do not exceed IEEE 802.3 distance limitations.
3.Cut conductors to the proper length before assembly. It is not permissible to “double-back” conductors to
take up slack inside the field cabinet.
4.Lace conductors neatly with nylon lacing or plastic straps.
5.Organize conductors neatly inside the field cabinet and secure cables with clamps.
6.Provide rubber grommets for drilled entrance holes in field cabinets, poles, conduit openings, and structures.
7.Provide service loops at connection points when connecting to hardware inside the field cabinet. No splicing
of cables or exposed conductors is permitted.
8.Label cabling with weathertight and UV-resistant methods to identify conductors.
926.3.02 Equipment Configuration and Integration Requirements Refer to Section 942.3.03 for equipment configuration and integration requirements. 926.3.03 Testing Requirements Refer to Section 942.3.04 for testing requirements. 926.3.04 Training Requirements Refer to Section 942.3.05 for training requirements. 1868
SECTION 926 — Wireless Communications Equipment
926.3.05 Warranty and Maintenance Support Services
A.Warranty Requirements
1.Provide a minimum warranty length of two years for the wireless system and associated components.
If the manufacturer’s warranties for the components are for a longer period, those longer period warranties shall apply.
2.Refer to Section 942.3.02 for general warranty requirements.
B.Maintenance Support Services
Refer to Section 942.3.02 for maintenance support services requirements.
926.4Measurement
The wireless system and training that are complete, in place, accepted, and of the kind, size, and type specified will be measured as follows:
A.Wireless System, Types 1, 2, and 3
The wireless IP-based Ethernet system will be measured for payment by the number installed, complete, functional, tested and accepted. Unless otherwise specified in the Contract, furnish and install the following minimum items as part of a wireless system: a radio transceiver, antennas, antenna coaxial cables, Category-6 outdoor-rated cables, PoE injectors, power supplies, surge protection, attachment hardware, any pole attachment permit fees, and work, equipment, and appurtenances to provide a fully functional wireless communications system. The price bid shall also include radio configuration and management software, any licenses, programming, device cabling, and system documentation to be turned over to the Department, including shop drawings, operations and maintenance manuals, wiring diagrams, block diagrams, and other material necessary to document the operation of the applicable wireless radio system.
B.Wireless System, Type 4
The broadband cellular wireless system will be measured for payment by the number installed, complete, functional, tested and accepted. Unless otherwise specified in the Contract, furnish and install the following minimum items as part of a broadband wireless system: a cellular wireless router, antennas, cabling and associated components, and work, equipment, and appurtenances as required, to provide a fully functional broadband cellular wireless communications system. The price bid shall also include system documentation to be turned over to the Department and other material necessary to document the operation of the applicable broadband cellular wireless radio system. This price will be full compensation for labor, tools, materials, equipment, and incidentals necessary to complete the work.
C.Wireless System Survey
Wireless system survey will be measured as a lump sum for wireless measurement tools, supplies, equipment, materials, development of report and recommendations, travel, and subsistence necessary to conduct the wireless system survey.
D.Training
Training will be measured as a lump sum for supplies, equipment, materials, handouts, travel, and subsistence necessary to conduct the wireless training.
926.5Payment
926.5.01 Wireless System Wireless systems of the types specified in the Contract documents will be paid for at the Contract unit price. This price will include full compensation for labor, materials, equipment, tools, test equipment, incidentals, installation, testing, and providing warranty necessary to complete the wireless communications system. 1869
SECTION 926 — Wireless Communications Equipment
Payment Notes: Submittal Submittal requirements are included in Section 942.1.04 and will not be paid for separately. It will be considered incidental to the wireless system pay item. Testing Testing is defined in Section 942.3.04 and will not be paid for separately. It will be considered incidental to the wireless system pay item. Wireless Field Cabinets New wireless field cabinets and enclosures will be paid for separately under Section 939.5 pay items. GDOT Central Software Integration GDOT Central Software integration is included in Section 942.3.03 and will be paid for separately under the Section 942.5 pay item. Payment for the wireless system will be made under: Item No. 926 Wireless System, Type ___ Per each Item No. 926 Wireless System Survey Lump sum 926.5.02 Training Payment for training will be made under: Item No. 926 Training Lump Sum 1870
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