AVANTEK: YIG-Tuned Oscillator Part # ASF GHz. $ Buy It Now. or Best Offer. 2 watching. AVANTEK:Part #ASF YIG-Tuned Oscillator . Avantek: Avantek Octave Band Series YIG. Identifier avantek_Avantek_Octave_Band_Series_YIG. Identifier-ark ark://tk7g . I have a couple of AVANTEK YIG oscillators, models SF6- and AVM Both are 2 – 4 GHz units. None of the oscillators have their pins.

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The closest standard units appear to be the AV through AV, which cover 8 to Facebook Twitter Reddit Email Print. There are quite a few of the miniature Stellex units on eBay, but they generally don’t go much past 10 GHz.

Satisfied that the module would behave somewhat as expected, I hooked it up to a spectrum analyzer. This is possibly throught the side opening, which is usually welded shut, but can be drilled up rather easily. Knocking it with a small! Your email address will not be published. To look inside, carefully removed the top weld seam on a lathe, and the you can pry the case open.

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Avantek: Avantek Octave Band Series YIG

To determine the likely power output, I hooked the oscillator into a dummy load, then measured the current draw on the 15V input — it was almost exactly mA, which means it is probably a 30 mW Since this particular project wasn’t very sensitive to any of the parameters, I waited for a cheap one to show up with the right range and went for it.


Note the hand made labels which may explain the cost of these units if purchased new… looks like US style handwriting to me. These do require a good amount of power, magnetic coils, etc, but provide stable and rather low noise output, and good modulation capability. Current consumption on the 15 V rail is normal. A range of 6 dB matches the units on the spec sheet, but a 7 dBm minimum power is below that of any of the comparable modules.

There are also tons of Avantek modules, in their standard round format, but a lot of them are custom part numbers with no specifications known.

Notify me of follow-up comments by email. Power levels seemed to vary between 7 and 13 dBm across a wide range, however the analyzer calibration may be off somewhat. It matches the first pinout in this old spec sheet.

YIG Oscillator | eBay

The thick wire is the main tuning coil, avantej accepts 0. Well, with all the basics checked, what to do with such hermetically sealed unit, other than using it to satisfy my curiosity about its internals. Hope to trace the defect to some specific part.

The coil — rather, the coils. With mA flowing, a signal finally popped up at around 7. With a little investigating, it wasn’t very difficult to determine the approximate svantek for the module I purchased. The analyzer allowed me to see the frequency move around as I changed the current on the tuning port. All is sealed and soaked with epoxy resin.

Avantek S081-0321 YIG oscillator: not oscillating at all

At the upper end of With the specs determined, I now have enough information to continue work on my project using this oscillator. Core element is a small YIG sphere, placed in a magnetic field. Leave a Reply Cancel reply Your email address will not be published.


As expected from this helpful documenta fair amount of avantei current was required avanhek oscillation started. Before verifying the suspected power level, I used an inline attenuator to avoid any chance of damaging the machine.

Also probed other parts of the circuit, with a thin wire, under the microscope. The lower edge of the specified range 7. Learn more about aantek here. This makes the module’s tuning behavior more like the next lower range, for example the AV This is for much lower currently but high bandwidth modulation.

However, for the current unit under investigation from a GHz frontendtype S, 8.

For a project I am currently working on, which I will detail here too eventually, I needed an oscillator capable of covering 8 to 12 GHz. Varying the coil current — no effect.

Save my name, email, and website in this browser for the next time I comment. Then, join our amazing community. Leave a Reply Cancel reply Your email address will not be published.

Notify me of follow-up comments by email. Voltage at the resistors is about 4.