Druckschrift 99810560, Combiners and Filters for FM ... - Kathrein

More documents

Recommendations

Info

Technical Annex Comparison Starpoint combiners / Directional filter combiners / Multiplexers / Stretchline combiners Combiner Starpoint Directional Multiplexer Stretchline Type combiner filter combiner combiner Set-up Band-pass filters Band-pass filters Directional filter - 3-dB couplers + starpoint + 3-dB coupler + starpoint combiner + stretchline Spacing FM: 30 W – 1 kW 2.5 MHz 2 MHz 2 MHz FM: 3 kW – 20 kW 1.5 MHz – 2 MHz 0.8 MHz – 1 MHz 1 MHz VHF: 100 W – 2 kW –– 3 channels 3 channels 3 channels UHF: 200 W – 3 kW 3 channels 3 channels 3 channels 3 channels Matching All inputs matched All inputs Starpoint inputs: All inputs (VSWR) in pass-band range; broadband matched pass-band matched; broadband matched Directional filter inputs: broadband matched; Frequency All inputs are narrow- Narrowband input: All inputs are narrowband All inputs are narrowresponse band according to according to frequency according to frequency band, depending on frequency response response of the response of the channel combination of the band-pass filters band-pass filters band-pass filters Broadband input: not selective Isolation According to NB – BB: Between starpoint inputs: Attenuation through stop-band attenuation attenuation through like starpoint combiner; 3-dB couplers of the band-pass filters 3-dB coupler Directional filter inputs: BB – NB / NB – NB: attenuation through 3-dB Attenuation through coupler + stop band 3-dB coupler + attenuation of stop-band attenuation band-pass filters of band-pass filters Extensions With additional Very simply by adding Simple by adding new band-pass filter; up a directional filter directional filter module new starpoint cabling module; no altering of between starpoint and necessary existing cabling directional filter; altering of existing cabling necessary Costs Economical solution Sophisticated solution Costs between starpoint and Ecomomical solution for wide frequency with several technical directional filter combiner; for wide frequency spacing advantages smaller frequency spacing spacing; usage in possible than with starpoint VHF and UHF-band 28
Technical Annex VSWR, Return Loss Reflected Power, Reflection Coefficient VSWR Return loss Reflected Reflected in dB power in % coefficient Locate the known value on the appropriate scale, then read across horizontally to find the equivalent values as shown in the examples above. 29
Page 1 and 2: BCA Combiners and Filters for FM Br
Page 3 and 4: Contents Page Who we are 4 Band II
Page 5 and 6: Band-pass Filter 87.5 ... 108 MHz,
Page 7 and 8: Band-pass Filter 87.5 ... 108 MHz,
Page 9 and 10: Starpoint Combiner 87.5 ... 108 MHz
Page 11 and 12: Directional Filter Combiner 87.5 ..
Page 13 and 14: Directional Filter Combiner 87.5 ..
Page 15 and 16: Band-pass Filter 210 ... 230 MHz, D
Page 17 and 18: Stretchline Combiner 174 ... 230 MH
Page 19 and 20: Stretchline Combiner 470 ... 860 MH
Page 21 and 22: Load 50 Ω, 0.5 W - 100 W K 62 26 4
Page 23 and 24: Customized Design FM Directional Fi
Page 25 and 26: Technical Annex Filters Where used
Page 27: Technical Annex Cascading of module
Page 31 and 32: Notice 31

Druckschrift 99810560, Combiners and Filters for FM ... - Kathrein

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?