Amplifiers
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FreeWave provides amplifiers for government, military and qualified customer solutions. We perform testing on all (100 percent) amps that we provide to assure that, like a FreeWave radios, these amps will perform when installed and over the long haul. Please note: Bilateral amplifiers are for use by the US Government, by military customers, and for other qualified customers only. |
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| Part Number | Power | Amplifier | Diplexer | ||
|---|---|---|---|---|---|
| AAA-1W | 1 W |  |
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| AAP-5W | 1.3 GHz |  |
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| AAA-5W | 5 W | |
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The FreeWave Technologies AAA series of Bilateral Amplifiers are designed to improve the range of 902-928 MHz spread spectrum radios by amplifying both the transmitted and received signals right at the antenna, mitigating cable loss.
- On the receive direction, the amplifiers incorporate GaAs FET amplification along with SAW and dielectric resonator filtering. This results in a 1.5 dB Noise Figure and a +5 dBm input intercept point along with 40 dB of cellular and pager band rejection. A combination of SAW and lowpass filtering reduces harmonic output to less than -70 dBc.
- On the transmit direction, the amplifiers generate 1 W or 5 W, making them the ideal solution for extending the range of spread spectrum radios.
- The amplifiers are powered through the antenna cable, simplifying the installation process.
- The amplifiers are packaged in sealed, milled, aluminum housing, providing the utmost in weather protection.
- Amplifier, mounted near the antenna (typically on the mast)
- Diplexer, mounted near a power source (typically by the radio)
- Power supply (wall wart), permanently connected to the diplexer
The diplexer receives DC power from the power supply, and adds it to the signal in the antenna cable. The amplifier separates the signal from the DC power, and uses that DC power.
Optionally, you may order amplifiers that are powered directly, without a diplexer (see below).
Specifications:
| General: | |
| Frequency Range | 902-928 MHz or 1.3 GHz |
| Transmit: | |
| Input RF Power | 15 mW Min; 330 mW Max |
| Output Power | 1 or 5 Watts Min |
| Harmonic Output | 2nd -40 dBc, 3rd and higher -70 dBc |
| Turn-on Transients | -70 dBc @ fc ±230 KHz, higher for lower turn-on times |
| Turn-on Time | 20 µs |
| Receive: | |
| Noise Figure | 1.5 dB Max |
| Gain | 14 dB Min, higher gain optional |
| Intercept Point | +5 dBm referred to input |
| In-band Response | 902-928 MHz: ± 1 dB |
| Out-of-band rejection | <895 MHz: -40 dB; 930 MHz: -40 dB |
| Power Supply: | |
| Supply Voltage | 110 Vac (Included power supply) or 10-14 Vdc |
| Power Consumption | AAA-1W: 0.35 A Max @ 12 Vdc AAA-5W: 2.0 A Max @ 12 Vdc |
| Mechanical: | |
| Enclosure | Milled Aluminum with Integral Bracket |
| Dimensions | 63.5 W x 102 L x 21.3 H [mm] 2.5 W x 4.0 L x 0.84 H ["] |
| RF Connectors | To Amplifier: SMA Female To Diplexer: Type-N Female |
Also available by special order:
| 220 Vac power supply |
| Directly powered amplifier (no diplexer) |
| Directly powered amplifier (no diplexer) with on/off control |
| Faster turn-on/turn-off: 1 µs |
| 50 ms time-out disabled (for continuous transmissions) |
| Amplifier | |
| Frequency | 1.350-1.390 GHz |
| Output Power | 5 watts |
| RF Input Power | 100 mW to 300 mW |
| Transmit Switch Level | tbd |
| Turn on Time | tbd |
| 2nd Harmonic | -40 dBc |
| 3rd Harmonic | -70 dBc |
| Receive Gain | +14 dB |
| Noise Figure | 1.5 dB maximum |
| 1 dB Compression | -10 dBm |
| Out of Band Signal Rejection | 40 dB |
| Operating Voltage | 12 VDC± 10% |
| Peak Transmit | 2 Amps @ 12 VDC |
| Receive Current | 22 mA @ 12 VDC |
| Temperature Range | -40°C to +75°C |
| Options | *Output Power On/ Off switch * Direct DC input (no diplexer needed) |
| Included Accessories | Diplexer with attached 20 VAC to 12 VDC supply. Not included with direct power option. |