ANTENNA TEST HATS
ANTENNA TEST HATS
ATH-L-002-RH
ATH-L-002-RH
COMPATIBLE WITH COTS SPACE ANTENNA
COMPATIBLE WITH COTS SPACE ANTENNA
CSA-L-003-RH
CSA-L-003-RH
GPS L1 Test Hat
GPS L1 Test Hat
ATH-L-002-RH is a COTS antenna test hat for CSA-L-003-RH, covering 1563.42 to 1587.42 MHz for GPS L1 functional and acceptance testing. Coupling is held to a 4 to 6.5 dB window, the tightest specification in this test hat range, which is what allows carrier-to-noise measurements to be compared across units. RHCP with 43 dBm power handling, SMA female, 150 g at 81 x 81 x 33 mm.
ATH-L-002-RH is a COTS antenna test hat for CSA-L-003-RH, covering 1563.42 to 1587.42 MHz for GPS L1 functional and acceptance testing. Coupling is held to a 4 to 6.5 dB window, the tightest specification in this test hat range, which is what allows carrier-to-noise measurements to be compared across units. RHCP with 43 dBm power handling, SMA female, 150 g at 81 x 81 x 33 mm.
PRODUCT OVERVIEW
Repeatable coupling is what makes a test hat measurement meaningful. A coupling factor that varies with seating carries an unknown offset into every reading, so the mounting interface is mechanically determined by features already present on the antenna rather than by operator technique. Coupling is 4 dB minimum, 4.5 dB typical and 6.5 dB maximum, with 2.5:1 VSWR across the band. The RF shielded enclosure allows GNSS simulator signal to be injected at realistic levels indoors without radiating into the L1 band, and protects personnel during transmit testing. The hat requires no bracket on the spacecraft and dismounts without tooling. At 81 x 81 x 33 mm (3.2 x 3.2 x 1.31 in) and 150 g it is the smallest fixture in the L-band group, rated -70 to +100 °C operating and storage so it can remain fitted through thermal cycling. CSA-L-003-RH is the matching antenna. Certain small-volume orders can ship within days rather than the months typically quoted for space-qualified hardware.
Repeatable coupling is what makes a test hat measurement meaningful. A coupling factor that varies with seating carries an unknown offset into every reading, so the mounting interface is mechanically determined by features already present on the antenna rather than by operator technique. Coupling is 4 dB minimum, 4.5 dB typical and 6.5 dB maximum, with 2.5:1 VSWR across the band. The RF shielded enclosure allows GNSS simulator signal to be injected at realistic levels indoors without radiating into the L1 band, and protects personnel during transmit testing. The hat requires no bracket on the spacecraft and dismounts without tooling. At 81 x 81 x 33 mm (3.2 x 3.2 x 1.31 in) and 150 g it is the smallest fixture in the L-band group, rated -70 to +100 °C operating and storage so it can remain fitted through thermal cycling. CSA-L-003-RH is the matching antenna. Certain small-volume orders can ship within days rather than the months typically quoted for space-qualified hardware.
TECHNICAL SPECIFICATIONS
RF PERFORMANCE
FREQUENCY RANGE
1563.42-1587.42 MHz
POLARIZATION
RHCP
RF POWER HANDLING
43 dBm
COUPLING
4.5 dB
INTEGRATION & QUALIFICATION
COMPATIBLE COTS SPACE ANTENNA
CSA-L-003-RH
APPLICATION
GNSS/GPS
OPERATING TEMPERATURE
-70 to +100 °C
HUMIDITY
SHOCK
MASS
150 g
