[SFDXA] RAM-34 Pre-Amp System for Low Bands

[Michael Raskin]

The RAM-34 is a complete pre-amplifier system designed primarily for the low 
bands 160M  through 40M. It has inputs for four receive antennas and 
internal 3-pole bandpass filters for the 160 m, 80 m and 40 m bands. In 
addition to the pre-amplifier, it has a step attenuator that together with 
the amplifier stage provides gains from -20 dB to +20 dB in 5 dB steps. This 
allows equalizing the signal levels between the antenna inputs. Gain 
settings are memorized for each antenna on each band. Different types of 
receive antennas have different signal levels and the gain memories 
eliminate the need to adjust the receiver or pre-amplifier when switching 
between the antennas.

The amplifier stage uses a 1 watt RF transistor that is capable of handling 
strong input signals without any overloading or clipping problems. This is 
crucial in a low band pre-amplifier where strong local signals may be 
present. As with all products in the Shacklan lineup, the RAM-34 may be 
fully remotely controlled by software. The RAM-34 is packaged in a rugged 
anodized aluminum case with laser engraved front and rear panels.

Check it out at https://www.arraysolutions.com/ram-34

In excellent cosmetic and working condition.  Array Solutions sells it for 
$459 new.  Buy mine for $295.  Free shipping.

Mike W4UM