AUTEK RF-1 PDF

If you squeeze the cabinet or loosen the screws it works. Power consumption is about mA on the 15 - 30 MHz ranges. The soldering is very poor throughout this unit due to poor workmanship quality. The circuit board should be hold in place with 4 screws.

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Akidal Made through holes in board with oscillator board mounted in cabinet. I used an external power supply or new battery with each analyzer. I seem to get wrong readings when I measure Put the unit back together and checked the calibration resistor again — SWR was 1. Those results are presented on one of his web pages. I connected these three parts into several series and parallel combinations in order to create a set of expected values.

There are some differences. To maintain lowest distortion you should load it down as little as possible. I recently sold the VA-1, but it served me well for quite awhile. At 1 MHZ augek above, it is very apparent. The added inductance should lower the capacitive reactance, which increases the pf value. A stub open or shorted tranmission line has almost zero R. It is very interesting to check the resonant frequencies of common objects already in place, such as gutters, non- grounded window frames.

In fact, the analyzer may not know the difference between capacitive and inductive reactance. The correct SWR value will be less than 2. Ff-1 is conceptually similar to drawing the 2. The same software previously used can be reused to compute the expected impedance values.

Frankly, I expected the errors to be much greater than I measured. Any errors within the transmission line itself will throw off all of the results. Later, multiple ohm dummy loads produced a 1.

However, this adjustment is VERY tricky, and user misadlustment is not covered by warranty. No wonder the company went out of business — they must have told their assemblers to cut back on the use of solder: The only caution is to make sure that your frequency is not so high atuek you are actually measuring a multiple of a half wavelength.

Each program takes a different approach to how loss is entered. Remember that a feedline can also change the sign of X. Any reactance means a higher SWR. Check the battery and it was down a little so I changed it. By itself, the hard-to-read display is a sign of trouble. Related Posts.

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AUTEK RF-1 PDF

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Akidal Made through holes in board with oscillator board mounted in cabinet. I used an external power supply or new battery with each analyzer. I seem to get wrong readings when I measure Put the unit back together and checked the calibration resistor again — SWR was 1. Those results are presented on one of his web pages. I connected these three parts into several series and parallel combinations in order to create a set of expected values.

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