|Panoramic Radio Products IP-259/U Receiver|
Panoramic Radio Products
|Kategorie:||Funk und Kommunikation|
Both the Panalyzor and Panadaptor are automatic scanning superheterodyne receivers which permit visual analysis and identification of one or many RoF· signals at one timee Each signal within the scanned band is displayed on a cathode-ray tube screen as a pip or a group of pips depending upon the nature of the signal. The pip amplitude and position along a calibrated horizontal axis are indicative of signal level and frequency, respectively. The sweepwidth or the extent of the band displayed above and below a given frequency which appears at the center of the screen* is continuously adjustable from maximum to "zero". The Type designation of the equipment indicates the maximum sweepwidth. The PANADAPTOR is designed to operate in conjunction with receivers having an I.Fo equal to the Panadaptor input center frequency. (See Electrical characteristics Section I Para· 5). Interconnection is made at the output of the receiver converter» In operation, the receiver is tuned to the spectrum segment to be observed« The signal to which the receiver is tuned will appear at the center of the screen« Either locally or remotely generated signals may be observed· The Panadaptor overall frequency coverage is dependent upon the timing range of its companion receivers The PANALYZOR is designed to operate with an external oscillator or signal generator to "tune in” a given spectrum segment. The signal generator is connected to one of two input RF connectors. The signal or signals to be examined are coupled directly from their source through a coaxial cable to the other input connector. The input stage of the Panalyzor is an aperiodic mixer which in conjunction with the external oscillator is equivalent to the frequency converter of a superheterodyne receiver such as is used with the Panadaptor. A signal will cause a deflection at the center of the screen when the generator is eet at a frequency equal to the signal frequency ± the Panalyzor input center frequency. (Refer to Electrical Characteristics, Section I Para0 5). The Panalyzor may be used as described above to examine signals up to 1000 MCc Higher frequencies may be investigated by effecting conversion with a suitable mixer attached to either of the input RoF. connectors ■> The two instruments differ in flatness of amplitude indication. The flatness of response of the Panalyzor primarily i8 dependent upon the bandpass char» acterietic of the instrument and the accuracy of the amplitude indication is therefore fixed within the limit· specified« The flatness of amplitude indi« cation in the Panadaptor0 however is the product of the receiver selectivity as seen at the output of the converter and the bandpass characteristic of tha Panadaptor» Since receiver selectivity will vary throughout the tuning range, the relative amplitudes of the signal deflections distributed across the »creen may not correspond to actual relative signal levels« Tha Panadaptor and Panalyzor differ also in the extent to which they present imageso Image presentation of the Panadaptor is mainly a function of the image rejection capabilities of the receiver.» Since the Panalyzor utilizes an aperiodic mixer (without any preselection) images are not suppressed» For examplee if it is desired to examine a 100 MC signal with a Type T-1000 Panalyzor,, the external oscillator would be set at 105 MCS the input center frequency being 5 MC and the bandpass from 4«>5 MC to 505 MC» A signal of llOol MC which may be present would also be heterodyned down to 5d MC to produce an image o Both the 100 MC and 110»1 MC signals would be equally acceptable by the aperiodic mixer» Images» however8 can be identified rapidly and simply with either instrument since the image deflections move in a direction opposite to that of regular signals ae the receiver or oscillator is tuned.
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|Panoramic Radio Products -- IP-259/U -- Service- und Bedienungsanleitung|
|Dokumenttyp:||Service- und Bedienungsanleitung|
|Dateigröße:||8.43 Mbytes (8834711 Bytes)|
|Qualität:||Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.|
|Upload Datum:||25 Mai 2016|
|Downloads:||139 seit dem 25 Mai 2016|
Panoramic Indicator IP 259/U is the same equipment as the Panalyzor Model SB-6a Type T-200. This is a composite Instruction Manual. Only the instructions pertaining to the Panalysor Model SB-6a Type T-200 should be followed -when using the Panoramic Indicator IP-259/u. Included within this manual is detailed information concerning installation, operation, adjustment and maintenance of the equipment,,
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