70cm Super Low Noise EME Preamplifier 430-450MHz NF=0.19dB

Unconditionally stable, ultimate design 70cm Super Low Noise EME Preamplifier 430-450MHz with NF of just 0.19dB will be your recipe to win any EME contest. Or win a UHF terrestrial contest with good antennas. You will hear the stations, almost impossible to hear with other preamplifiers. Full band coverage from 430 to 450 MHz. The input stage consists of a SAV-541+ pHEMT transistor, which is one of the top MMICs for preamplifiers. A 70 cm bandpass filter is placed after the low-noise preamplifier to ensure that it does not compromise the preamplifier’s noise characteristics. With its high selectivity, this filter will effectively block high-frequency signals, as well as those from the 6m, 2m, or 23cm bands, preventing them from interfering with reception. 20dB of gain is enough to compensate for cable loss and poor noise figure characteristics of modern transceivers.

 

70cm Super Low Noise EME Preamplifier 430-450MHz Appearance:

70cm Super Low Noise EME Preamplifier 430- 450MHz measured gain:

50 MHz -57 dB
88 MHz -45 dB
108 MHz -38 dB
127 MHz -30 dB
144 MHz -24 dB
222 MHz -6 dB
430 – 450 MHz +20 dB, NF 0.19 dB, RLin 4.5dB
864 MHz -13 dB
1296 MHz -21 dB
2405 MHz -32 dB
5875 MHz -23 dB
Power consumption +12 V, 70 mA

 

70cm Super Low Noise EME Preamplifier 430- 450MHz measured VHF, 70cm, 23cm Gain on HP8753ES Network Analyzer

 

70cm Low Noise EME Preamplifier 430- 450MHz VHF Gain

 

70cm Super Low Noise EME Preamplifier 430-450MHz Gain to 6GHz

 

For the other preamplifiers, look here and here.