Minimum Technical Requirements:
Feed assembly suitable for operation on a 3.8 metre Cassegrain/parabolic SATCOM antenna.
Receive Frequency Range: 3.4 GHz to 4.2 GHz.
Transmit Frequency Range: 5.850 GHz to 6.425 GHz.
Polarisation: Circular, supporting both:
- Left Hand Circular Polarisation (LHCP)
- Right Hand Circular Polarisation (RHCP)
- Orthogonal/reversible operation.
Transmit Axial Ratio: ≤ 0.75 dB.
Cross-Polarisation Performance: Compliant with Intelsat IESS-207 requirements.
Regulatory Compliance: FCC and Intelsat compliant.
Minimum Antenna G/T: 22.5 dB/K at 25° elevation angle with receive out-of-band filtering.
Equivalent Isotropically Radiated Power (EIRP): Support antenna system performance of 63 dBW (single carrier, mid-band).
Feed assembly shall be supplied complete with all required:
Waveguide interfaces
Orthomode transducer (OMT) or equivalent
Mounting hardware
Polarisation switching components
Environmental sealing suitable for outdoor deployment

Vendor Response Requirements

Tenderers shall provide:
1. Detailed feedhorn datasheet.
2. Mechanical drawings including dimensions and mounting interfaces.
3. Waveguide flange standards and interface details.
4. Gain and illumination pattern plots.
5. Cross-polarisation performance data.
6. Environmental specifications.
7. Mean Time Between Failure (MTBF), if available.
8. Country of manufacture and delivery lead time.
9. Confirmation of compatibility with existing 3.8 m tactical SATCOM antenna systems.

We're looking for a complete 3p PocketQube platform — structure, OBC, EPS, and UHF comms — compatible with the Alba Orbital AlbaPod deployer. 

The satellite is a fixed payload with no moving parts and no camera — it carries visual markers on its exterior panels for testing proximity/detection sensors, plus a small onboard circuit that measures solar cell performance and sends data down over radio.

We need to deliver the finished satellite to our launch provider within 3 to 5 months, so lead time is critical for us.

To save time on both sides, please include everything in your first response — quotation, lead time, flight heritage, ICD, CAD model, and datasheet — rather than a partial reply, so we can evaluate your offer in one pass without needing follow-up requests. Also let us know if staged or deposit payment is available, as we're an early-stage company working with a limited budget right now.

• Current Mission Phase (Phase 0, A, B, ...) -> D

• Expected Satellite Mass (Kg) -> 12kg

• Expected Satellite Orbital Average Power (OAP) (W) -> 80W

• Allowed OAP power diverted to thruster (W) -> 20W

• Peak power diverted to thruster (W) ->30W

• EMC requirements or standards used in the Satellite -> ECSS-E-ST-20-07C Rev.2

• Minimum thrust requirement (mN) -> 500mN

• Minimum Isp requirement (s) -> 240s biprop

• Minimum dV (m/s) or Total Impulse (kNs) requirement -> 30 m/s, 0.40kNs

• Maximum allowed total (wet) propulsion system mass (kg) -> 1.5kg

• Maximum allowed system volume (cm3) -> 1000cm^3

• Intended manoeuvres (orbit injection, station keeping, deorbiting, collision

avoidance) -> Initial orbit acquisition and injection-dispersion correction; orbital

phasing and minor orbit raising; station keeping; collision avoidance; and end-of-life

perigee lowering.

• Intended Space segment (LEO, MEO, GEO, far-earth, etc.) -> LEO

• Minimum required radiation tolerance (in kRad) -> 10 krad(Si)