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Low Band Receiving Antennas

Low Bands aplifiers LNA 1.8-3.8MHz


Low Bands aplifiers LNA 1.8-3.8MHz

As an amplifier I used the famous 2N5109 for its excellent features of high OIP3, low noise figure in push -pull configuration.in input to the preamp I put a bandpass filter that passes the signals of the two low bands 160 meters and 80 meters , but which cuts the AM broadcast frequencies to about 600KHz, the frequencies of 40 meters and above. Possibly the filter can be removed and the preamplifier can make the whole band from 200 KHz to 30MHz
post 22 Feb 2020
Low Bands aplifiers LNA 1.8-3.8MHz

Low Band Receiving Antennas Links

Systeme d'antennes verticales en phase
Two vertical lambda / 4 antennas marked A and B and placed at a distance equal to lambda / 2 are supplied simultaneously by the same signal in transmission

The pennant antenna for low bands, VE1ZA
This is the best receiving antenna for my location. It is small and very directional. The pennant is oriented to europe and can notch out 59+ 20 db signals to S-0. It dramatically reduces the stateside interference while improving the SNR on the low bands towards europe

The pennant antenna, IV3PRK
La caratteristica principale, che mi fa preferire Flag, Delta e Pennants rispetto alle Ewe e K9AY loops, e' la loro indipendenza dalla terra, alla quale non c'e alcuna connessione

The Need for a High Performance Low Band RX antenna, K7TJR
Anyone attempting to work DX on Top-Band 160 Meters soon learns of the need for a good receiving antenna

The K6STI Loop at HC1PF, IV3PRK
This is a specialized receiving antenna, omni directional and thus with a low RDF, but with low sensitivity to vertical polarized noise and, my worst problem, to local AM broadcasting signals