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Model 640105 Air Cooled-ALTRONIC RESEARCH
Model 640105 Air Cooled
The 6400 Series air dielectric coaxial loads deliver the same high performance of the 6700 Series in a smaller package. The 6400 Series was designed to operate using static or forced air while exhibiting stable RF characteristics. The small, compact oil free design is a welcome advantage in a busy transmitter area. Applications run from mounting on top of the transmitter to placing them inside the cabinet. Model 640105 is an excellent load for VHF transmitters with separate inputs for the aural and visual ports.
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.
Model 640105 Air Cooled
Power Rating: 1.5kW & 5kW* continuous duty
Impedance: 50 ohms nominal
Frequency Range: DC to 220 MHz
Maximum VSWR: 1.15:1 to 220 MHz
Input Connectors: N – Female + 1 5/8″ EIA Unflanged
Nominal Dimensions (Excluding Conn.): 11 7/8″ x 11 3/4″ x 17 1/4″
(30.1 cm x 29.8 cm x 43.8 cm)
Nominal Weight: 17 lbs. (7.7 kg)
Finish: Beige Splatter
Typical application would be for visual and aural for VHF transmitter.
* without FA640105 rating is 300 watts and 1.5kW
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
