BPF 2/3 Band-Pass Filter for the 160 MHz Band DESCRIPTION: ★

BPF 2/3 Band-Pass Filter for the 160 MHz Band DESCRIPTION: ★
BPF 2/3
Band-Pass Filter for the 160 MHz Band
DESCRIPTION:
★ The BPF 2/3 is a 3-helical resonator band-pass filter with aperture-coupling between the resonators.
★ This filter can be used as a preselector to protect a receiver against interference from transmissions out of
★
★
★
the passband, or it can be used to reduce spurious output from a transmitter with up to 50 watts output
power.
The filter can be tuned within the entire 144-175 MHz band. It has very small dimensions owing to the use of
helical resonators. Careful design and choice of materials ensure reliable operation over a wide temperature
range.
The housing is made of extruded aluminium, the chassis of steel, and teflon insulation has been used in the
coaxial cables and in the connectors.
The filter is black vinyl coated to prevent corrosion.
SPECIFICATIONS:
TYPICAL RESPONSE CURVES :
ELECTRICAL
MODEL
FILTER TYPE
TUNING RANGE
MAX. INPUT POWER
INSERTION LOSS
ATTENUATION
AROUND PASS-BAND
OUT OF BAND
ATTENUATION
IMPEDANCE
SWR
INSERTION LOSS
PASS BAND
BPF 2/3
Band-pass filter
144-175 MHz
50 watts
< 1.0 dB (typ.)
See curves
See curves
Nom. 50 ⍀
< 1.5
01.2006
MECHANICAL
TEMP. RANGE
–30° C i +60° C
CONNECTORS
BNC-female (others on request)
DIMENSIONS (L x W x H) 160 x 77 x 33 mm
WEIGHT
Approx. 420 g
PROCOM A/S reserve the right to amend specifications without prior notice.
ATTENUATION AROUND PASS BAND
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