EME-DX 23cm Super Low Noise Preamplifier 1240-1325MHz NF=0.27dB

Wideband unconditionally stable EME-DX 23cm Super Low Noise Preamplifier 1240-1325MHz specially designed for super weak EME signals and contesting. With NF of just 0.27dB, you will hear all EME (Moon) or DX signals. Full band coverage from 1240 to 1325MHz. The input stage consists of a SAV-541+ pHEMT transistor, which is one of the top MMICs for preamplifiers. A band-pass filter is placed after the first stage to clean all out-of-band signals, followed by a low-noise PGA-103+ E-PHEMT high dynamic range preamplifier with excellent output return loss. This configuration achieves the required gain of over 30 dB to overcome the receivers’ poor NF.

 

EME-DX 23cm Super Low Noise Preamplifier 1240-1325MHz Appearance:

 

Internal schematics of EME-DX 23cm Super Low Noise Preamplifier

 

EME-DX 23cm Super Low Noise Preamplifier 1240-1325MHz measured gain:

14 MHz -64 dB
28 MHz -53 dB
50 MHz -56 dB
144 MHz -54 dB
222 MHz -41 dB
1240MHz +32.2dB, NF 0.27 dB, RLin 5.5dB
1310MHz +31.4dB, NF 0.27 dB, RLin 5.1dB
2.4GHz -7 dB
2.6GHz -27 dB
3GHz -18 dB
3.5GHz -12 dB
5.8GHz -2.5dB
Power consumption +12 V, 185 mA

 

Measured characteristics with the 6GHz HP8753ES Network Analyzer of EME-DX 23cm Preamplifier

EME-DX 23cm Super Low Noise Preamplifier 1240-1325MHz Gain

 

EME-DX 23cm Preamplifier 1240-1325MHz VHF Gain

 

EME-DX 23cm Super Low Noise Preamplifier 1240-1325MHz UHF Gain

 

EME-DX 23cm Super Low Noise Preamplifier SHF Gain

 

If you need to transmit through the preamplifier, look at our EME2-1296