Filters
2 Results Found For "preamp"
Antennas-Amplifiers 6505 70cm Low Loss Receive Band Pass Filters
Antennas-Amplifiers 6505 70cm Low Loss Receive Band Pass Filters are engineered for optimal performance in weak signal, terrestrial, and EME applications. Designed for direct connection to a coaxial relay, the 6505 filter minimizes insertion loss in the receive path, ensuring that wideband preamplifiers experience virtually no degradation to their noise performance. By sharply rejecting strong out of band signals, the 6505 provides stable operation in environments with strong adjacent band or high power local signals. The filter is housed in a sturdy 0.8 mm brass enclosure, providing excellent mechanical stability, long term durability, and consistent electrical characteristics over time.
Not Yet Reviewed
$175.99
Antennas-Amplifiers 5910 Low Loss 6-meter Receive Band Pass Filters
Antennas Amplifiers 5910 Low Loss 6 meter Receive Band Pass Filters deliver exceptional performance on the legendary 6m "Magic Band," offering high selectivity, a high Q design, and impressively low insertion loss. Engineered to confine received signals strictly within the 50–51 MHz amateur band, these filters dramatically reduce out of band noise, lowering the noise floor and enhancing weak signal reception. When placed ahead of SDRs or wideband receivers, they effectively remove unwanted HF, 4m, FM broadcast, 2m, and 70cm signals, leaving us with a clean and focused 6m passband. Just as important, these filters will not disturb the noise performance of preamplifiers—an essential advantage for contesting, DXing, and EME—while ensuring smooth, stable operation even in the presence of strong nearby signals. With an insertion loss of just 0.1 dB, they safeguard receiving performance without compromise, a level of efficiency achieved through careful design and precise tuning. In multi operator contest stations or portable field setups, they provide essential isolation by minimizing images and harmonic interference, ensuring crisp monoband operation even in crowded RF environments. These 6 meter band pass filters are the ideal choice for operators seeking cleaner signals, improved performance, and reliable protection for sensitive front end equipment.
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$180.99