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1. What are the power levels and frequencies of operation for this multiplexer?
2. Are measured impedance values available for the antenna (measured on carrier and sideband frequencies for each station to be multiplexed)? If so, then please provide the measured impedance versus frequency data and skip to question 5 below.
If no impedance values are available, please answer questions 3a through 3e.
3a. What is the tower height?
3b. Is the tower guyed or self-supporting?
3c. Does the tower have a triangular or square cross section?
3d. What is the tower face-width? If not uniform, please give us the face-width versus tower height in detail.
3e. Is the tower series fed (base insulated) or otherwise?
If the tower is series fed, please skip to question 5.
If the tower is not series fed (for example using a folded unipole) then please answer question 4a through 4e.
4a. What is the height of the unipole skirt kit on the tower?
4b. What is the level of the lower commoning ring at which the feed connects?
4c. What is the number of skirt wires, the size (gauge) of the wires, and how are they positioned on the tower? (For example, straight off the legs, straight off the face centers, etc.)
4d. What is the standoff distance of the wires from the tower?
4e. What is the level of the shorting stub wires (if stubs are present)?
5. Please describe any forms of isolation that are required in the multiplexer and/or that are used on the tower, such as tower lighting chokes, isocouplers, isolation coils, etc.:
6a. What is the input transmission line impedance? (50 Ohms is the default.)
6b. What is the connection type (EIA flange, cable camp, open wire)?
7. What current metering is required? The standard metering is a toroidal style output RF current meter installed in the output arm of the tuning unit.
Is digital broadcast (DRM/IBOC) planned? If so:
8a. What is the transmitter make and model?
8b. What is the transmission line length from transmitter output to multiplexer input?
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