ELECRAFT KFL1-4, Руководство по сборке и эксплуатации

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Elecraft • www.elecraft.com • 831-763-4211
E
L E C R A F T
K F L 1 - 4
F O U R - B A N D F I L T E R B O A R D
Assembly and Operating Instructions
Revision B, December 7, 2011. Copyright © 2011, Elecraft; All Rights Reserved
Important Manual Note
Assembly, alignment, and other information about the 4-band Filter board is covered in this manual,
not in
the K1 Owner's Manual. Wherever the owner's manual mentions the 2-band module, you'll need to refer to
the applicable sections of this manual instead.
Please read the K1 Owner's Manual Errata Sheet now and make all corrections listed. The errata
sheet provides notations that will tell you when to refer to the KFL1-4 manual. Also, if you're just starting
to build your K1, read the first three chapters of the owner's manual before assembling this board.
Introduction
The KFL1-4 Filter board provides four of the most popular HF QRP bands on a single plug-in module: 40,
30, 20, and either 17 or 15 meters. The KFL1-4 is the same size as the 2-band K1 filter board (KFL1), and
can simply be plugged into the K1 transceiver with no other required changes.
The 4-band filter board is fully compatible with the KBT1 battery option and the KAT1 automatic antenna
tuner (ATU). With most antennas, the ATU will find a good match on all four bands.
The KFL1-4 covers the frequency ranges listed below. These ranges are approximate, and depend on which
VFO range the builder chooses during assembly (80 or 150 kHz). The builder must also select either 17 m
or 15 m band coverage. These topics are covered later in the manual.
Band 80 kHz VFO Range 150 kHz VFO Range
40 m 7.0-7.08 7.0-7.15
30 m 10.1-10.18 10.0-10.15
20 m 14.0-14.08 14.0-14.15
17 m 18.05-18.13 18.05-18.20
15 m 21.0-21.08 21.0-21.15
i
Caution: Some parts in this kit can be damaged by static discharge or by dropping them
onto a hard surface. Before handling the integrated circuit (U1), put on an anti-static wrist strap, or
touch a grounded, unpainted metal surface. When handling crystals and toroid cores, be careful not
to drop them onto a hard surface.