4.__Requirements_Document.pdf

13 Jun 2019

High Power Global Positioning System (GPS) Antennas

Requirements Document

For

704th Test Group/746th Test Squadron

1.0 PURPOSE

The 746th Test Squadron (746 TS) provides expert test and evaluation of Navigation Warfare

Systems. The 746 TS requires unique high power components and systems that work in the GPS frequencies such as amplifiers and antennas.

GPS jamming testing for the squadron has increased threefold in the last 3 years and as a result our number of assets have been increased to keep up with the testing demands. Given that the jammer power transmission performance is mostly defined by the antenna specifications, the antennas are a critical part of the jammer. The squadron requires Cobham omni-directional antennas that comply with threat and customer’s requirements.

2.0 SCOPE

The Contractor shall provide Cobham omni-directional antennas that meet the following requirements:

2.1 Qty 5 EA– L1 GPS Hemi-Omni Antennas (P/N: CHA6-1.6R/2307)

2.1.1 L1 Frequency: 1575.42 +/- 12 MHz

2.1.2 Gain: minimum 6 dBic

2.1.3 Polarization: RHCP

2.1.4 Axial Ratio: < 3

2.1.5 VSWR: 2:1 max

2.1.6 Power Rating: 1.5KW CW

2.1.7 Weight: =< 10 Kg

2.1.8 Temperature: -10C to +50C

2.1.9 Wind Loading: up to 100 mph

2.1.10 Connector: 7/16 Female

2.2 Qty 5 EA– L2 GPS Hemi-Omni Antennas (P/N: CHA6-1.2R/2306)

2.2.1 L2 Frequency: 1227.60 +/- 12 MHz

2.2.2 Gain: minimum 6 dBic

2.2.3 Polarization: RHCP

2.2.4 Axial Ratio: <3

2.2.5 VSWR: 2:1 max

2.2.6 Power Rating: 1.5KW CW

2.2.7 Weight: =< 14 Kg

2.2.8 Temperature: -10C to +50C

2.2.9 Wind Loading: up to 100 mph

2.2.10 Connector: 7/16 Female

13 Jun 2019

2.3 Antennas should be able to withstand harsh environment conditions such as rain, dust and long hours in direct sunlight.

3.0 MILESTONES

The Contractor shall deliver the items listed above no later than 16 weeks ARO

4.0 DELIVERABLES

The contractor shall deliver all hardware and documentation to 704 TSS/XPL, Attn: Jose L Diaz at 1644 Vandergrift Road, Building 1260, Holloman Air Force Base, New Mexico 88330-7850.