LF Engineering SPL-2/50L User manual

Model SPL-2/50L VLF/HF
Two-Way Splitter/Combiner
The SPL-2/50L VLF-HF Two-Way Splitter/Combiner provides an
impedance matched 50 ohm coaxial connection for two receivers
when feeding signal from one active antenna, or when combining
two different antennas (L-400B and H-800), or combining an active
antenna and a wire antenna into one receiver.
The splitter consists of a low loss toroid matching network designed to
maintain a low impedance signal split with high isolation between ports.
Proper impedance matching is necessary for optimum performance
especially when running feeder cable over long distances within a
building.
Specifications - SPL-2/50L
SPL-2 Size 2.4”L x 1.4”W x 0.75H”
Bandwidth < 10 kHz to 30 MHz
Input Impedance 50 ohms
Output Impedance 50 ohms
Insertion Loss < 1 dB above 6 dB splitter loss
Port Isolation > 40 dB typical
Shorted Port Loss < 1 dB
Maximum Power 500 mW
Connections RCA
SPL-2/50L Two-Way Splitter/Combiner
Product Warranty
LF Engineering Co. warrants that, at the time of shipment the
products manufactured are free from defects in material and
workmanship. LF Engineering obligation under this warranty
is limited to replacement or repair of the product within 1 year
from the date of shipment.
860-526-4759 • www.lfengineering.com
Copyright LF Engineering Co.
All rights reserved.
Printed in U.S.A.
LF Engineering Co.
17 Jeffery Road
East Haven, CT 06513

Two Receivers, One Antenna
Rx1 Rx2
Ant
50 Ω
Antenna Tuner
Tuned
Long Wire
H-800
Active
Antenna
OR
Coupler
SA220 Coupler
OR
SA220
Signal Amplifier
Antenna Tuner
OR
Tuned
Long Wire
SPL-2/50L
Two Antennas, One Receiver
Ant1 Ant2
Rx
SPL-2/50L
H-800
HF Active
Antenna
L-400B
LF Active
Antenna
Coupler
Coupler
OR
Ant1 Ant2
Rx
RCVR
(HF / LF)
50 Ω
RCVR
(HF / LF)
L-202B
LF Amplifier
& Matcher
Antenna Tuner
Tuned
Long Wire
In splitter configuration, two receivers may be fed from one
antenna. Shown below are four antenna configurations typically
used with the SPL-2/50L. Use coaxial extensions in lengths up to
100 feet using 50 ohm 1/4 inch coaxial cable.
The cumulative system loss is the total loss (in dB) of all feeder and
extension cables, and the splitter loss for the SPL-2/50L itself.
In combiner configuration, two different antennas may be used
to feed one broadband receiver. Shown below are two suggested
antenna configurations that may be used with the SPL-2/50L.
The cumulative system loss is the total loss (in dB) of all feeder and
extension cables, and the splitter loss for the SPL-2/50L itself.