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If you are travelling in eastern Europe the instances of GPS jamming and spoofing are concerning. You would be well advised to carry paper maps in addition to your GPS. Plus if you have a VOR device as a back-up even better (Some handheld radios have VOR capability built in. )
1. Europa instrument panel. Ipad Mini tablet displaying GPS and weather. High position possible due to use of Ram Mount.
2. Example: Yeasu transceiver reserve use as VOR device. Clips onto the Ram Mount
3. Maps are a good backup if your GPS is jammed.
4. Examples of likely Jamming & Spoofing instances in one day. Example indicates a greater than 10% chance of interference. Access this data for current period here
Red and yellow hexes show where a significant number of aircraft reported low navigation accuracy. This often seems to be in regions where it's known or suspected that GPS jamming is occurring, but the data doesn't tell me what's causing the low accuracy.

