General Information
Specifications
Specifications
Specifications for the 11970 Series Mixers are listed in Table 1-1. These are the performance standards against which the mixers are tested (performance tests are provided in Chapter 3 ,“Performance Tests,”). Typical or nominal operating values are listed in Table 1-2.
NOTE | Supplemental characteristics are included only as additional information; |
| they are not specifications. |
| |
Equipment Supplied
Waveguide Connector Screws
Five hex-head screws are supplied with each mixer. Four are required to make the mixer-to-waveguide connection, one is a spare. Use ONLY the screws supplied to attach the mixer to the waveguide. Because of slight differences in the way the mixers couple with the waveguide, the square-flange mixers (11970K and 11970A) and the round-flange mixer (1970Q, 11970U, 11970V and 11970W) require different screws.
If your mixer has a square waveguide flange, use four hex-head screws with Part Number 3030-0221. If it has a round waveguide flange, use four hex-head captive screws with Part Number 1390-0671. The special balldriver hex screwdriver available in the Option 009 Mixer Connector Kit simplifies installation of the waveguide connector screws.
NOTE | See Chapter 4 ,“Service,” for a list of replacement parts. |
Environmental Limitations
The 11970 Series Mixers meet or exceed the environmental requirements of MIL-T-28800C, Type III, Class 3, Style C. Specific environmental qualifications for the mixers are as follows:
Temperature, Non-operating: -40oC to 75oC
Temperature, Operating: 0oC to 55oC
Relative Humidity: 95 ± 5% (up to 30oC)
Altitude, Non-operating: Less than 12,195 meters (40,000 ft.)
Altitude, Operating: Less than 3,048 meters (10,000 ft.)
Maximum Vibration Levels: 2 G’s at 5 to 2000 Hz
Maximum Shock: 30 G’s
