Most safe-mode architectures split uplink and downlink across two low-gain antennas rather than sharing one aperture, because a passive single-band design is simpler to qualify and more predictable than a diplexed one. This is the transmit half of that pair. The ±60 degree field of view makes the downlink available across a 120 degree cone with no pointing at all, which is what allows an operator to recover telemetry from a vehicle whose attitude is unknown. Polarization is RHCP with VSWR below 1.5:1 through an SMA female interface. Qualification follows NASA GEVS Table 2.4-3 with 14.1 GRMS overall random vibration, minimum resonant frequency verification, and 0.25 g low-level sine sweeps before and after vibration. Thermal cycling is to the mission profile. Antenna pattern and S-parameter characterisation run from 1 to 40 GHz, with a Certificate of Conformance available on request. LGA-S-001-RH covers the S-band receive allocation. Custom low-gain configurations from L-band through Ka-band are developed to mission-specific requirements, with short lead times accommodated on low-volume programmes.