Amateur Radio Station
K3LR – FCC licensed since 1972
Designed and Engineered specifically for Multi
Multi DX Contest Operations + HF Emergency Radio Response
Towers = 13 (Includes 8 dedicated towers used for 80 meter full
size, base insulated (series fed) verticals that are used in a 2X
Phased 4 square array)
160 meters Station #1
The main TX and RX antenna is a 5 Element, electronically relay
switchable,
Directional (4 directions with 32 dB of F/B), vertical Yagi.
23,000 meters of radials. 37 meter AB-105 style (18 inch face)
base insulated tower for the driven element and 4 "T"
wire parasitics. See ON4UN 4th edition Low Band DXing
book for details.
The radio is a Icom 7800 with a single band 8877 amplifier
80 meters Station #1
The antenna is two full size, self supporting (23 meters tall x
8), phased, 4 squares that are spaced 5/8 wavelength apart. The
squares can be fed broadside (45 and 255 degrees) or end fire
(135 and 315 degrees). 31,000 meters of radials with two Comtek
Systems Hybrids and a custom splitter switch. The operator can
select one or two 4 squares in each direction.
The radio is a Icom 7800 with a single band 8877 amplifier
**Interlocked with**
80 meters Station #2
M2 with W6ANR element coils - rotating dipole at 74 meters (96
feet long). Can be remotely tuned 3.5 to 3.9 MHz via K6AJ
motorized "Tornado" center coil.
The radio is a Icom 781 with a single band 8877 amplifier
40 meters Station #1
4L/4L = 8 element stacked array (15 meter booms- each antenna
weighs 370 lbs.) Full size WA3FET OWA Yagis at 59 meters(Prop
Pitch) and 36 meters (TIC ring rotor)
PiRod 24 inch face tower. Switching allows operator choice of TOP
only, Both In Phase, BOTTOM only or Both Out of Phase
The radio is a Icom 7800 with a single band 8877 amplifier
**Interlocked with**
40 meters Station #2
2L/2L = 4 element stacked array W6NL Moxon design (7 meters boom)
at 57 meters (TIC ring rotor) and 37 meters (TIC ring rotor).
Switching allows operator choice of TOP only, Both In Phase,
BOTTOM only or Both Out of Phase.
The radio is a Icom 781 with a single band 8877 amplifier
20 meters Station #1
WA3FET Yagi OWA design 6L/6L/6L/6L = 24 element stacked array (15
meter booms) at 71 meters(Prop Pitch)/52 meters (TIC ring
rotor)/34 meters (TIC ring rotor)/15 meters(TIC ring rotor)
PiRod 18 inch face tower
Switching allows 10 combinations of antenna selection by the
operator. Top, High Mid, Low Mid, Low, All Four, Top Three,
Bottom Three, Top Two, Middle Two or Bottom Two.
The radio is a Icom 7800 with a single band 8877 amplifier
**Interlocked with**
20 meters Station #2
M2 Yagis 6L/6L = 12 element stacked array (19 meter booms) at 46
meters (TIC ring rotor) over 31 meters (TIC ring rotor).
Switching allows operator choice of TOP only, Both In Phase,
BOTTOM only or Both Out of Phase
Comtek ground mounted 4 square with 60 radials per element
(Receive only)
The radio is a Icom 781 with a single band 8877 amplifier
15 meters Station #1
WA3FET Yagi OWA design 7L/7L/7L/7L = 28 element stacked array (15
meter booms) at 50 meters(PropPitch)/37 meters(TIC ring rotor)/25
meters(TIC ring rotor)/12 meters(TIC ring rotor)
PiRod tower (18 inch face)
Switching allows 10 combinations of antenna selection by the
operator. Top, High Mid, Low Mid, Low, All Four, Top Three,
Bottom Three, Top Two, Middle Two or Bottom Two.
The radio is a Icom 7800 with a single band 8877 amplifier
**Interlocked with**
15 meters Station #2
M2 Yagis 6 ele/6 ele = 12 element stacked array (12 meter booms)
at
25 meters(TIC ring rotor) and at 12 meters fixed at 150 deg (can
be stacked or fed separate)
The radio is a Icom 781 with a single band 8877
10 meters Station #1
WA3FET Yagi OWA design 8L/8L/8L = 24 element stacked array (15
meter booms) at 30 meters(Create)/20 meters(TIC ring rotor)/10
meters(TIC
ring rotor)
Tower AB-105 style (18 inch face)
The radio is a Icom 781 with a single band amplifier
**Interlocked with**
10 meters Station #2
M2 Yagis 7L/7L/7L = 21 element stacked array (14 meter booms) at
61 meters(Prop Pitch)/25 meters(TIC ring rotor)/15 meters fixed
at 150 deg. The operator can choose 7 selections. Top, Middle,
Bottom, All Three, Top Two, Bottom Two, High/Low. 5/8 wavelength
vertical at 61 meters.
Comtek ground mounted 4 square with 5/8 wavelength verticals.
There are 60 ½ wavelength radials per element (Receive Only)
The radio is a Icom 781 and a single band 8877 amplifier
RX antennas -
Available to all (5) K3LR stations on 160, 80 and 40 meters via
K9AY TriPlex distribution system (Receive Antenna Select).
4 Beverages
2 are single wire reversible feeds for 45/225 and 135/315 degrees
(270 meters long) direction controlled by the 80 meter #2
operator
One is a single wire 308 meters on EU/SW K9AY transformers
(reversible feeds)
One is a single wire 308 meters on Asia/South America K9AY
transformers (reversible feeds) direction controlled by the 160
meter operator.
Low dipoles for 160 and 80 meters at 5 meters high
DX Engineering receiving 4 square (98 foot spacing) with 160
meter mobile antennas (4) 3 ground rods per element and at array
center.
meters. Use DX Engineering Noise Canceling Controller (NCC-1) on
160 meters
Radios are 5 Icom IC-7800 and 12 Icom IC-781
Transceivers with high performance PIN diode front end mods and
W3NQN bandpass filters for TX/RX and W2PV RX. Harmonic
suppression stubs.
Amplifiers are Single band homebrew single 8877 tube at 1500
watts output
Headsets are Bose QC-1 and QC-2 with Heil HC5 boom microphones
Contest software is latest WinTest version on
13 dedicated Pentium Windows XP computers custom built by Dave,
W9ZRX
Network is 100 base T wired Ethernet
Coffee brewing system is the Flavia S350 and SB100. 30 selections of Coffee and Tea available for the K3LR team.
Keys are Bencher
Contest club is North Coast Contesters
Location is West Middlesex, PA – Mercer County - Grid EN91se
Logs and instant QSLs via ARRL LoTW and eQSL
QSL info Direct OK (no SASE needed), Via the Buro, eQSL, or LoTW
K3LR DX Cluster (maintained by Dave, W9ZRX) runs AB5K AR Cluster software and is available on 144.97 MHz for Western Pennsylvania and Eastern Ohio running 50 watts to an antenna at 61 meters and supporting connections all over the world via telnet://dx.k3lr.com
K3LR Web page is http://www.k3lr.com
Email to k3lr@k3lr.com
Comments: Hope we see you in the next contest!
Updated 01/23/08