Transcript
Receiver Preselectors 800-1000 MHz These receiver preselectors offer excellent performance in a compact physical package. This model is a six section helical filter that can be tuned to pass bandwidths of up to 10 MHz. This model is normally supplied separately for mounting into systems such as bi-directional amplifiers (BDAs) but a range of mounting styles are available upon request.
• Ideal for Trunking and PMR on low density sites RX8287-1181-18
• Suits BDA and other systems applications 0
• Adjustable pass bandwidth
-10 -20
• RFI Systems records support
-30 -40
• Suited to use in low power, wide bandwidth duplexers
-50 -60 -70 -80 -90
-20
fo
+20
Typical Response Curve - RX8287-1181-18
Electrical Model No.
Frequency (MHz)
Pass Bandwidth
Insertion Loss @ Fo (dB)
Passband Insertion Loss (dB)
Power Rating (watts)
Imped.
RX8287-1181-18
820-870
1.0 to 10.0 MHz Typical
2.0 (Typ)
2.2 (Typ)
Rx Low Power Tx
50 Ohms
Mechanical Model No.
Construction
RX8287-1181-18
Painted aluminium
Size - H x W x D (mm / inches)
32 / 1.25
210 / 8.25
90 / 3.5
Temperature °C/°F
Weight (Kg / Ib)
Connectors
-20 to +60 -4 to +140
0.64 / 1.4
BNC female
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Receiver Preselectors 800-1000 MHz This preselector utilises time-proven 100mm (4") ¾ wavelength bandpass cavities in a design of superior flexibility that provides both high selectivity and factory-adjustable bandwidth in a compact package. It can also be used as a post-combiner filter at total input powers up to 125-250 watts depending on pass bandwidth settings. Two or more of these units may be used to provide a multi-window receive preselector or a wide passband, high power duplexer. This model is available mounted on a 3RU panel, flush-mount shelf, or in a cross-mount style - both suiting 483mm (19") racking.
RX8010-1441-31 0
• Ideal for analogue and digital, Trunking and PMR
-10
• Suits high density sites
-30
-20
-40
• Adjustable pass bandwidth
-50 -60
• RFI Systems records support
-70 -80
• Ideal as post-combiner filter at up to 250 watts input power
-90
-10
• Suited to use in high power, wide bandwidth duplexers
fo
+10
Typical Response Curve - RX8010-1441-31 @ 0.5, 1.0 & 2.0MHz
• Response may be further enhanced with additional filtering
Electrical Model No.
Frequency (MHz)
Pass Bandwidth
Insertion Loss @ Fo (dB)
Passband Insertion Loss (dB)
Power Rating (watts)
Imped.
RX8010-1441-31
800-1000
0.2 to 8.0 MHz
1.0 (Typ)
1.3 (Typ)
125-250 Note 1.
50 Ohms
Note: 1. Power rating varies with pass bandwidth. Please consult RFI if further clarification required.
Mechanical Model No.
Construction
RX8010-1441-31
Alodined aluminium with silver plated tuning elements, with powder coated front panel
Size - H x W x D (mm / inches)
134 / 5.25
483 / 19
305 / 12
Temperature °C/°F
Weight (Kg / Ib)
Connectors
-30 to +60 -22 to +140
6.3 / 14
N female
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Receiver Preselectors 800-1000 MHz These preselectors are combline, maximally-flat bandpass filters that provide the low insertion loss and high selectivity required in RFcongested environments. They are ideally suited to use in receiver preselectors and bidirectional amplifier systems requiring high selectivity in a compact size. Depending on the model, six to twelve-section models provide 515MHz of passband that can be tuned anywhere in their respective frequency ranges. These preselectors satisfy a wide variety of system design applications in the 800MHz and 900MHz bands. They are particularly suited to multi-channel systems including trunking radio, cellular, Bi-directional Amplifier applications and Distributed Antenna Systems (DAS). These models are recommended for typical system applications where ample transmit-receive frequency separation exists and/or when carrier attenuation requirements can be satisfied with the combined preselector selectivity and/or antenna isolation. These models are mounted on flush rack mount panels, or they may be mounted in alternative mounting styles if desired.
RX8082-1801-31 0 -10 -20 -30 -40 -50 -60 -70 -80
• Suits analogue and digital technologies • Ideal for Trunking and Cellular applications • Suits high density sites
-90
-50
fo
+50
Typical Response Curve - RX8082-1801-31 @ 18.0MHz
• Ideal for tower mount amplifiers • Broad range available upon request • Response may be further enhanced with additional • Example models shown (other variants available on request)
This catalogue represents a sampling of our multicoupling products and services.
If the multicoupling solution you are looking for isn't here, please contact your nearest RFI sales office for further assistance!
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Receiver Preselectors 800-1000 MHz Electrical Model No.
Frequency (MHz)
Pass Bandwidth
Insertion Loss @ fo (dB)
Sections
15
0.4 dB
6
5
0.9 dB
6
15
0.6 dB
8
RX8082-1861-31 RX8082-1862-31
806-821
RX8082-1881-31 RX8082-1801-31
806-824
18
0.7 dB
10
RX8284-1861-31
825-845
10
0.6 dB
6
15
0.4 dB
6
5
1.2 dB
6
RX8586-1861-31
Power Rating (watts)
Imped.
Rx Only
50 Ohms
851-866 RX8586-1882-31 RX8789-1861-31
870-890
10
0.6 dB
6
RX8991-1801-31
890-915
25
0.5 dB
10
RX8991-1802-31
890-915
25
0.5 dB
12
5
1.0 dB
6
5
1.0 dB
8
25
0.7 dB
10
25
0.7 dB
12
RX8990-1861-31 896-901 RX8990-1881-31 RX9396-1801-31 935-960 RX9396-1802-31
Mechanical Model No.
Size - H x W x D (mm / inches)
Construction
Temperature °C/°F
Weight (Kg / Ib)
Connectors
RX8082-1861-31 3.1 / 6.8 RX8082-1862-31 RX8082-1881-31
3.6 / 7.9
RX8082-1801-31
3.8 / 8.4
RX8284-1861-31 RX8586-1861-31
3.1 / 6.8
RX8586-1882-31 RX8789-1861-31
Alodined aluminium with silver plated tuning elements, with four alodined front panel
134 5.25
483 19
64 2.5
-30 to +60 -22 to 140
3.6 / 7.9
N female
RX8991-1801-31 3.1 / 6.8 RX8991-1802-31 RX8990-1861-31
3.8 / 8.4
RX8990-1881-31
4.1 / 9.0
RX9396-1801-31
3.8 / 8.4
RX9396-1802-31
4.1 / 9.0
RX8586-1841-31
50 2
483 19
135 5.3
3.8 / 8.3
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