Thanks for the comments. As I thought, there is no propagation issues in this band. Thank you for confirming that.
We have other versions of this device that operate at about 870MHz. Due to the Cellular band, we cannot use them in North America. As you would expect, the cellular interference...
I have an application requiring two-way RF data communication at a location in Southern United States.
I am operating 1mW at abotu 900MHz. Communication over a short range (few hundred feet) can be difficult during the day, however, at night the range is far more than required.
Any clues as...
Concider for comparison the RG-59 cable. It is 75 Ohms. With RG 58 you are not comparing apples to aples.
RG-6 has inherit lower loss merely by the size of the conductive element.
Iden
Polorisation for the main and side lobes will be identical for the H-plane and identical for the E-Plane, no matter which way the horn is pinted.
Bottom line, for testing polorization either V or Horz placed won't make much difference because the polorarity of the horn must match the pol of the...
CAn I am asume this is orbiting? If it is moving, the charistics of the polarization change proportional to AZ/EL. Very rare will it be true HZ/Vert. Thin of the angle of incidence of the satellite adn its relation to your location. If you could see it, as it moves accross the sky, the angle you...
IF you need any further ralyabilkity on the tiem sync, You may be able to scope your IRIG-B timecode generator to sync with the timecode yourself, if avaiable.
Iden
Another possibility is a Radio Frequency Identification (RFID) Tag with a temperature sensor. Identec Solutions Inc of Kelowna, British Columbia, designs and markets such a device. The interval of measurement can be set to >1 read/second, or hours between temperature log. Use a tag for each...
The capacitance between leads and shield can induce microphonics. Try securely grounding the shield if there is one, or lifting the shield. If no shield exists and it is practical, use a shielded Ethernet cable. Without further details, it may be the connector, not the cable. Again, poor...
RFID is the answer. I do work with company that provides advanced Radio Frequency Identification (RFID). With this product, place a RFID Tag on the object. Using a PCMCIA card in a laptop/PC or handheld device, ping the particular robot and when it reaches the outer zone where they will loose...
