Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
183 words
Radio apparatus, in particular VHF transmitter and receiver apparatus for aeronautical radio, the apparatus comprising a housing having a front side and adapted to be received in a mounting, a frequency synthesizer, a channel tuning switch arranged at said front side of the housing for selecting any desired channel in a predetermined frequency range, at least one channel selector for tuning in a fixed channel, adjustment means in respect of said at least one channel selector, a changeover switch for effecting changeover between the channel tuning switch and said at least one channel selector and a liquid crystal display adapted to indicate the channel selected and wherein said channel tuning switch and said at least one channel selector are similar mechanical stepping switches, said adjustment means for said at least one channel selector only being actuated by means of tools, said adjustment means further being only accessible when the housing is withdrawn from said mounting and wherein said change-over switch connects either said channel tuning switch or said at least one channel selector to the frequency synthesizer and to said liquid crystal display.
Claim 2
Dependent Claim
183 words
Radio apparatus, in particular VHF transmitter and receiver apparatus for aeronautical radio, the apparatus comprising a housing having a front side and adapted to be received in a mounting, a frequency synthesizer, a channel tuning switch arranged at said front side of the housing for selecting any desired channel in a predetermined frequency range, at least one channel selector for tuning in a fixed channel, adjustment means in respect of said at least one channel selector, a changeover switch for effecting changeover between the channel tuning switch and said at least one channel selector and a liquid crystal display adapted to indicate the channel selected and wherein said channel tuning switch and said at least one channel selector are similar mechanical stepping switches, said adjustment means for said at least one channel selector only being actuated by means of tools, said adjustment means further being only accessible when the housing is withdrawn from said mounting and wherein said change-over switch connects either said channel tuning switch or said at least one channel selector to the frequency synthesizer and to said liquid crystal display.
Claim 3
Dependent Claim
15 words
Radio apparatus according to claim 1, wherein the stepping switches are rotatable binary coding switches.
Claim 4
Dependent Claim
18 words
Radio apparatus according to claim 1, wherein means are provided for sealing said at least one channel selector.
Claim 5
Dependent Claim
39 words
Radio apparatus according to claim 1 wherein the channel tuning switch and said at least one channel selector each consist of two interconnected stepping switches of which the one serves for MHz tuning and the other for KHz tuning.
Claim 6
Dependent Claim
22 words
Radio apparatus according to claim 1, wherein said at least one channel selector is arranged near to one of the housing sides.
Claim 7
Dependent Claim
53 words
Radio apparatus according to claim 1, wherein a plurality of channel selectors is provided and wherein said changeover switch is a rotatable switch having several positions and rotatable from a first position corresponding to said channel tuning switch to further positions each corresponding to a respective one of said plurality of channel selectors.