Power (max):
200 Watts PEP or CW*
Power (typ):
1.5 Watt PEP or CW*
Range
≥
9ft. Ant.
7-30MHz @ 100W
Range
≥
40ft. Ant.
3-30MHz @ 200W
Input Voltage:
12.6 VDC (nominal)
Voltage Range
10 - 18.5 VDC
SPECIFICATIONS:
Impedance Range
.2 - 5000 ohms
Range
≥
100ft. Ant. 1.8-30MHz @ 100W
Low Current Drain Typical 230 mA
ANTENNAS:
1.
Whip
2.
Backstay (marine, sail)
3.
Dipole centerfed
4.
Dipole with feedline
5.
Loop (small) 2x2 ft. multi turn
6.
Loop (large) 10 ft. and up single turn
7.
Longwire
IMPORTANT NOTES:
1. The SG-239 universal coupler is designed for use with ANY HF transceiver or ANY antenna as specified. All installa-
tion configurations are possible such as base stations, mobile, marine, aviation, and small vehicles including motorcycles
and ATV'S.
2. Only 12 Volt DC and RF connections are required for basic operation. Additional connections are supplied for user
specific applications.
3. WARNING! High voltage is present on antenna terminal. Avoid contact or RF burns may occur.
4. For end fed antennas, use a ground system of several radials which are electrically longer than the radiating portion
of the antenna. Radials assure a stable, reliable and electrically 'quiet' ground system, free from electrical noise and RF
pollution. Do not use hand rails, metal roofing or ground stakes for a ground system as they are generally contaminated
and unstable.
5. The SG-239 can be used next to your transceiver as a RF line feed trimmer for balanced or unbalanced lines of 100-
1000 ohms or coaxial lines (25-100 ohms). The unit does not require a balanced transformer to perform efficiently.
6. For best system and operation efficiency, we recommend installing your antenna in the open and far away from your
operating point. Put the Smartuner as close as possible to the base of your antenna system.
GND RF IN
TND
HLD/
RSET
12V GND
C out
L
C in
SAV
RF
DC
OPTIONAL
Catalog Number 54-22
SG-239 HF Smartuner™
PI Network Manual Tuning
* For 40% Duty Cycle
S1
MODE
S2
S3
S4
S5
S6
S7
S8
SG-239 Manual
page 32
Wednesday, October 17, 2001 08:31
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