Avantek ASAT-1214-002 2W 70MHz RF Amplifier 305-037808-002 WR75 Satcom

Avantek ASAT-1214-002 2W 70MHz RF Amplifier 305-037808-002 WR75 Satcom

The Avantek ASAT-1214-002 is a 2-Watt, 70 MHz RF amplifier housed in a rugged sealed aluminum chassis. It was designed for satellite communications ground station applications where amplification of a 70 MHz intermediate frequency (IF) signal is required. The unit features WR75 waveguide interfaces for both input and output, along with a set of SMA-type rear-panel RF monitor and adjustment ports.

Specifications & What's Included

• Manufacturer: Avantek, Santa Clara, California
• Model: ASAT-1214-002
• Part Number: 305-037808-002
• Output Power: 2 Watts
• Center Frequency: 70 MHz
• Input Interface: WR75 waveguide port (side panel)
• Output Interface: WR75 waveguide port (side panel)
• J1 – 70 MHz Output Monitor port (rear, SMA-type)
• J2 – 70 MHz Output port (rear, SMA-type)
• J3 – 70 MHz Output Adjust port (rear, SMA-type)
• Rear power/control connector: circular multi-pin (mil-style)
• Enclosure: sealed aluminum chassis with bolt-down cover; screw torque spec 6 oz/in
• Shock impact indicator label affixed to chassis (C-47 type)
• Unit only — no cables or documentation included

Applications

The ASAT-1214-002 is a satcom ground station amplifier built around the standard 70 MHz IF frequency that dominated satellite communications earth station equipment from the 1970s through the 1990s. In a typical ground station link, the 70 MHz IF sits between the baseband processing chain and the upconverter/HPA (high-power amplifier) on the transmit side, or between the LNB/downconverter and the demodulator on the receive side. A dedicated IF amplifier like this one provides the gain needed to drive subsequent stages at the correct signal level. Avantek was a prominent Santa Clara-based manufacturer of microwave and RF components and amplifiers during this era, supplying both commercial satellite ground stations and defense/government communications systems. The WR75 waveguide interface (nominally covering the 10–15 GHz Ku-band range in its antenna-side form, but here used as the IF-signal mechanical interface) and the rugged sealed chassis are consistent with rack-mounted or cabinet-installed ground station assemblies of that period. This type of amplifier is still sought by maintainers of legacy satcom ground station infrastructure and by RF engineers working with older IF-frequency equipment chains.