SE9400836L - Transmitter filter for digital modulation - Google Patents

Transmitter filter for digital modulation

Info

Publication number
SE9400836L
SE9400836L SE9400836A SE9400836A SE9400836L SE 9400836 L SE9400836 L SE 9400836L SE 9400836 A SE9400836 A SE 9400836A SE 9400836 A SE9400836 A SE 9400836A SE 9400836 L SE9400836 L SE 9400836L
Authority
SE
Sweden
Prior art keywords
band pass
pass circuits
digital modulation
filter
transmitter filter
Prior art date
Application number
SE9400836A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9400836D0 (en
Inventor
Hans Olof Lundbaeck
Original Assignee
Teracom Components Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teracom Components Ab filed Critical Teracom Components Ab
Priority to SE9400836A priority Critical patent/SE9400836L/en
Publication of SE9400836D0 publication Critical patent/SE9400836D0/en
Priority to DE1995109709 priority patent/DE19509709A1/en
Priority to JP7050884A priority patent/JPH07326906A/en
Publication of SE9400836L publication Critical patent/SE9400836L/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters

Landscapes

  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Non-Reversible Transmitting Devices (AREA)

Abstract

The transmitter delivers signals with a wide frequency spectrum, the intervals between the frequency channels being rather small. The transmit filter (1) has relatively numerous, exclusively band pass circuits (K1-6) for safeguarding the required steepness of the filter characteristic flanks and a high clearance of all other frequencies. The band pass circuits are mfd. by milling from a material block by an NC machine tool for attaining the mechanical precision, avoiding the need for fine tuning of the transmit filter. Pref. the band pass circuits are milled from a brass block.
SE9400836A 1994-03-11 1994-03-11 Transmitter filter for digital modulation SE9400836L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9400836A SE9400836L (en) 1994-03-11 1994-03-11 Transmitter filter for digital modulation
DE1995109709 DE19509709A1 (en) 1994-03-11 1995-03-09 Digital modulation transmit filter for DAB
JP7050884A JPH07326906A (en) 1994-03-11 1995-03-10 Transmitter filter for digital modulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9400836A SE9400836L (en) 1994-03-11 1994-03-11 Transmitter filter for digital modulation

Publications (2)

Publication Number Publication Date
SE9400836D0 SE9400836D0 (en) 1994-03-11
SE9400836L true SE9400836L (en) 1995-09-12

Family

ID=20393256

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9400836A SE9400836L (en) 1994-03-11 1994-03-11 Transmitter filter for digital modulation

Country Status (3)

Country Link
JP (1) JPH07326906A (en)
DE (1) DE19509709A1 (en)
SE (1) SE9400836L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7343487B2 (en) 2001-10-10 2008-03-11 Nokia Corporation Datacast distribution system
US7231404B2 (en) 2003-01-31 2007-06-12 Nokia Corporation Datacast file transmission with meta-data retention

Also Published As

Publication number Publication date
SE9400836D0 (en) 1994-03-11
DE19509709A1 (en) 1995-09-14
JPH07326906A (en) 1995-12-12

Similar Documents

Publication Publication Date Title
AU565682B2 (en) Crude oil resid con
FR2489605B1 (en)
AU660776B2 (en) Procedure for manufacturing paper from seaweed and paper thus obtained
DE69321964D1 (en) COMPOSITE FOR RADIATION SHIELDING
FI841656A (en) FREQUENCY REQUIREMENTS FOR N-ALKYLES DIPEPTIDERS OR DERAS ESTRAR.
IL86055A0 (en) Arrangement for filtering a received fm signal
FI840839A (en) IMMEDIATE EQUIPMENT FOR OVER FREQUENCY OR FRAMSTAELLNING AV DEM.
MY104273A (en) Dual grooved fresnel lens for overhead projection
GR3015073T3 (en) Method and apparatus for information transmission between radio transceivers of the same frequency hopping network.
DE3469046D1 (en) Cationic additive for paper production
EP2293448A3 (en) Method and apparatus for an N-nary logic circuit
EP0190412A3 (en) Monolithic microwave integrated antenna
SE9400836L (en) Transmitter filter for digital modulation
DE68927483D1 (en) Method and device for digital signal processing
CA2279031A1 (en) Sweep pilot technique for a control system that reduces distortion produced by electrical circuits
MY118887A (en) Reproducing or recording device for reproducing, or recording on, an optical recording medium
AU1514483A (en) A circuit for a high impedance signal source
AU7811187A (en) An antenna exciter for at least two different frequency bands
ZA92611B (en) Method and circuit for an automatic, high precision frequency fine tuning.
CA2027251A1 (en) Tread buffing method and apparatus
DE3861185D1 (en) VHF RADIO TRANSMITTER SYSTEM CONSISTING OF AT LEAST TWO TRANSMITTERS OF DIFFERENT FREQUENCY.
ZA842090B (en) A wide-band short-wave radio transmitter
EP0144576A3 (en) A floodlight reflector
SE8306640L (en) RADIOANLEGGNINGAR
AUPO076496A0 (en) Input coupling adjustment arrangement for radio frequency filters

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9400836-4