Elecraft PR6 User Manual download pdf (Page 1)

Elecraft • www.elecraft.com • 831-662-8345

ELECRAFT PR6 6-Meter Receive Preamplifier

Owner’s Manual

Revision B, May 19, 2011

Introduction

The PR6 is a high-performance, low-noise 6-meter preamp that can be used with the Elecraft K3 or other

transceivers. It's especially well-suited to the K3, which has exceptional dynamic range, yet can benefit

from additional gain for 6-meter weak signal work. Adding the PR6 typically improves 6-meter MDS from

about -136 to -143 dBm. The noise figure of the preamp itself is typically 0.5 dB.

The PR6 can be connected directly to the RX ANT IN/OUT jacks on the K3's KXV3 module (required),

where it can be switched in automatically by the transceiver when operating on 6 meters. A second pair of

jacks is provided on the opposite side of the PR6 to allow use of the K3's normal RX ANT IN/OUT signal

path when the preamp is not in use.

Power for the PR6 can be obtained from any 11 to 14 VDC supply. When used with a K3, the PR6 can be

powered from the 12 VDC accessory output. It can be strapped permanently ON, or it can be turned on/off

externally from an open-source/open-drain logic signal. In the K3 case, the DIGOUT1 control line can be

used (on the 15-pin ACC jack), since it is stored on a per-band basis.

The PR6 is housed in a rugged, custom-machined enclosure.

Figure 1. Elecraft PR6 Low-Noise 6-Meter Receive Preamplifier.

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Elecraft • www.elecraft.com • 831-662-8345 ELECRAFT PR6 6-Meter Receive Preamplifier Owner’s Manual Revision B, May 19, 2011 Copyrig

Page 2 PR6 6-Meter Receiver Preamplifier Owner’s Manual Specifications Frequency Coverage: 50 – 54 MHz Noise Figure: < 0.7 dB, 0.5 dB typi

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PR6 6-Meter Receiver Preamplifier Owner’s Manual Page 3 Other 6-Meter Receivers and Transceivers The cover label on the PR6 identifies the signal, p

Page 4 PR6 6-Meter Receiver Preamplifier Owner’s Manual Figure 3. Jumper P2 Location. Circuit Description The schematic diagram of the PR6 is sho

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PR6 6-Meter Receiver Preamplifier Owner’s Manual Page 5

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Elecraft PR6 User Manual Page 1