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Static Air Cooled Model 6401- ALTRONIC RESEARCH
Static Air Cooled Model 6401
The Model 6400 Series Coaxial Loads were designed to cut off RF transmittion when
temperature in the load reaches 140°F. This allows for cooling of the load while keeping the
outlet air temperature cool enough to prevent burning if personnel come in contact with the air
flow.
Women's clothing size
| Size | XS | S | M | L |
|---|---|---|---|---|
| Euro | 32/34 | 36 | 38 | 40 |
| USA | 0/2 | 4 | 6 | 8 |
| Bust(in) | 31-32 | 33 | 34 | 36 |
| Bust(cm) | 80.5-82.5 | 84.5 | 87 | 92 |
| Waist(in) | 24-25 | 26 | 27 | 29 |
| Waist(cm) | 62.5-64.5 | 66.5 | 69 | 74 |
| Hips(in) | 34-35 | 36 | 37 | 39 |
| Hips(cm) | 87.5-89.5 | 91.5 | 94 | 99 |
With your arms relaxed at your sides, measure around the fullest part of your chest.
Measure around the narrowest part of your natural waist, generally around the belly button. To ensure a comfortable fit, keep one finger between the measuring tape and your body.
Static Air Cooled Model 6401
Power Rating: 1kW continuous duty
Impedance: 50 ohms nominal
Frequency Range: DC to 240 MHz
Maximum VSWR: 1.15:1
Input Connectors: N – Female, 7/8″, 1 5/8″ EIA (others available)
Nominal Dimensions (Excluding Conn.): 10 1/2″ x 9″ x 17 1/4″
(26.7 cm x 22.9 cm x 43.8 cm)
Nominal Weight: 8 lbs. (3.6 kg)
Finish: Beige Splatter
RF Load Types
• RF load designs are determined by impedance, power
handling capability, cooling method, and frequency range:
→ Power handling capability: 1-watt, 10-20 watt, 100-300 watt,
or many kilowatts
→ Impedance is typically 50 ohms unless otherwise stated
→ Quality of match can vary from good (typical for “loads”) to
excellent (typical for precision “terminations”)
→ Cooling method could be ambient air, forced air, closed-system oil
conduction to air fins, forced water, etc. it depends on the
power levels involved
→ A “broadband” RF load will represent a 50-ohm match with low VSWR
over a specified frequency range, but some loads are designed to be
a good match at only one frequency
