Single-wire multiswitch and channelized RF cable test meter
View Patent ↗Multiple embodiments of systems for testing the delivery of satellite and cable television signals are described.
1. A system for testing the delivery of satellite signals, comprising:
a meter, coupled to a receive antenna through a Single-Wire Multiswitch (SWM), wherein the receive antenna receives satellite signals and downconverts the satellite signals to an intermediate frequency spectrum; and the SWM selects the requested frequencies for the IRDs the meter comprising:
a plurality of filters;
at least one detector, coupled to the plurality of filters, for detecting a portion of the intermediate frequency spectrum, the portion of the intermediate frequency spectrum being defined by the plurality of filters;
a comparator, for comparing the detected portion of the intermediate frequency against a predetermined condition; and
at least one indicator, coupled to the at least one detector, for indicating an actual condition of the portion of the intermediate frequency spectrum.
2. The system of claim 1 , wherein the actual condition of the portion of the intermediate frequency spectrum comprises a power level of the portion of the intermediate frequency spectrum.
3. The system of claim 2 , wherein the meter further comprises a switch network, coupled to the plurality of filters, such that the intermediate frequency spectrum is filtered through the plurality of filters in a sequential manner.
4. The system of claim 3 , wherein the at least one indicator is a light emitting diode.
5. The system of claim 4 , wherein the light emitting diode emits light in a first color when the comparator determines that the predetermined condition is met by the actual condition of the portion of the intermediate frequency spectrum.
6. The system of claim 1 , wherein actual conditions of a plurality of portions of the intermediate frequency spectrum are indicated simultaneously.
7. The system of claim 1 , further comprising a Frequency Shift Keyed (FSK) detector, coupled to the plurality of filters, for detecting a condition of an FSK communications channel.
8. The system of claim 1 , further comprising a tone generator, coupled to an input of the plurality of filters.
9. The system of claim 1 , wherein the at least one indicator is a power meter.
10. The system of claim 1 , wherein the predetermined condition is stored in the meter.
11. A system for testing the delivery of signals, comprising:
a meter, coupled to a cable for delivering signals, comprising:
a mixer for receiving the satellite signals;
a frequency source, coupled to the mixer, for converting the signals to an intermediate frequency spectrum;
a filter, coupled to an output of the mixer;
at least one detector, coupled to the filter, for detecting a portion of the intermediate frequency spectrum, the portion of the intermediate frequency spectrum being defined by the filter;
at least one indicator, coupled to the at least one detector, for indicating an actual condition of the portion of the intermediate frequency spectrum; and
a controller, coupled to the frequency source, for changing the frequency source wherein changing the frequency source changes the intermediate frequency spectrum such that different portions of the intermediate frequency spectrum are detected by the detector.
12. The system of claim 11 , wherein the actual condition of the portion of the intermediate frequency spectrum comprises a power level of the portion of the intermediate frequency spectrum.
13. The system of claim 12 , wherein the at least one indicator is a light emitting diode.
14. The system of claim 13 , wherein the light emitting diode emits light in a first color when the comparator determines that the predetermined condition is met by the actual condition of the portion of the intermediate frequency spectrum.
15. The system of claim 11 , wherein actual conditions of a plurality of portions of the intermediate frequency spectrum are indicated simultaneously.
16. The system of claim 11 , further comprising a Frequency Shift Keyed (FSK) detector, coupled to the plurality of filters, for detecting a condition of an FSK communications channel.
17. The system of claim 11 , wherein the at least one indicator is a power meter.