DESCRIPTION
DESCRIPTION
1/4
λ
mobile antennas covering the frequency range of 66...88 MHz or 140...175 MHz by using
the enclosed cutting diagram. SM series is made of black tapered fiberglass whip and supplied
with “S” or “SL” mount.
SPECIFICATIONS
SPECIFICATIONS
TUNING INSTRUCTIONS
TUNING INSTRUCTIONS
ID374
Electrical Data
Type
: 1/4
λ
Frequency Range
: SM 66-88
from 66 to 88 MHz tunable by cutting
: SM 140-175
from 140 to 175 MHz tunable by cutting
Impedance
: 50
Ω
Radiation :
Omnidirectional
Polarization
: Linear Vertical
Gain
: 0 dB ref. to a
λ
/4 whip
Bandwidth @ SWR
≤
2
: SM 66-88
≥
7.9 MHz @ 66 MHz (”SL” mount)
: SM 140-175
≥
11 MHz @ 140 MHz (”SL” mount)
SWR @ res. freq.
: SM 66-88
≤
1.2 @ 66 MHz (”SL” mount)
: SM 140-175
≤
1.5 @ 140 MHz (”SL” mount)
Max Power
: 100 Watts
Standard Mount
: “SL”, mounting hole
∅
19 mm, cable 5m RG 58
Alternative Mount
: “S”, mounting hole
∅
19 mm, cable 5m RG 58
Mechanical Data
Materials
: Fiberglass, Nylon, Chromed Brass
Height (approx.)
: SM 66-88
1085 mm
: SM 140-175
500 mm
Weight (approx.)
: 380 gr
L
HI-QUALITY ANTENNAS MADE IN ITALY
NOTE:
!
Use the curves just as a guide. For fine-tuning please use an SWR-Meter.