How to tune the ARC-9 to a frequency?

[Rongor]

I have the 100- and the 10-kHz dial. But how to tune to 129 kHz? The 3rd little dial only features a scale starting at -10 to +20. That won't be what I am looking for, right?

[electro_monkey]

Tune 130 kHz, set "the 3rd little dial" to -1 and you'll get 129 kHhz:)

[lmp]

... or the other way around, 120 on the digital display and +9 on the little dial. Both ways should work.

[lmp]

Just remembered another thing. ARK-9 only covers the 150 - 1300kHz frequency range. So even though you can dial in a lower frequency, you won't actually get a signal. But if you wanted to tune, say, 156kHz (which is the outer Senaki beacon, 129kHz being the inner one), you would follow the procedure described above. Either 150 or 160 on the digital display, and a relative +6 or -4 correction with the fine tuning knob.

[Rongor]

Thanks again, btw Senaki is exactly the airfield I was testing this:thumbup:

[Socket7]

You should see the signal needle jump to full strength when you get it tuned correctly. Don't be fooled by a partial signal strength. I've gotten very confused by my ADF a couple times because I didn't lock onto the right signal.

[Rongor]

Well normally you would then check on the morse ID. But I couldn't listen to it in the Mi-8 yet. I switched my SPU-7 to Radio and the dial to Arc, and turned up all volumes, but without avail so far...