Share capital €11.000.000,00
Registered under nr. 501 400 699
Last update: 14/05/2012
SA-525-20 Antenna Tuning Unit
The SA-525-20 HF Antenna Tuning Unit features automatic matching of electrically short HF antennas, as usually found in vehicular applications, for up to 20W RF power with frequency hopping compatibility. A very compact and cost effective communications system with 20W HF and 50W VHF power capability can be easily built with a PRC-525 H/VHF radio, an AP-525V 50W VHF power amplifier, both mounted on a MT-525S single docking station, and one SA-525-20 ATU.
The SA-525-20 offers two modes of operation: active tuning mode, where the unit generates the RF signal, optimizes VSWR and stores the tuning parameters; and silent tuning mode in which pre-stored parameters are used. The tuning process is remotely controlled via coaxial or optical interfaces. The unit was designed to integrate battery powered systems, having a reduced power consumption and automatic switch off under radio control.
Technical information
| General | |||
| Frequency Range | 1.5 to 30 MHz | ||
| Maximum Power Input | 25 W PEP, CW | ||
| Power Supply | MIL-STD-1275B | ||
| Matched Antennas | Whip antenna ≥3 m | ||
| Long-wire and broadband antennas ≤15 m | |||
| Tuning Modes | Active and silent tuning | ||
| Built-In Test | Continuous monitoring of RF level, temperature, supply voltage, etc. | ||
| Environmental | MIL-STD-810F | ||
| Temperature range | -40 ºC to +70 ºC (operating) | ||
| -25 ºC to +55 ºC (full specs) | |||
| Vibration | method 514.5 | ||
| Shock | method 516.5 | ||
| Immersion | method 512.4 | ||
| EMC | MIL-STD-461E | ||
| CE102, CE106, CS101, CS114, RE102, RS103 | |||
| Mechanical | |||
| Dimensions (W x H x D) | 147 x 72 x 225 mm | ||
| Weight | 2 Kg |
