Johnex
75
Yeah i recommend a narrow band antenna because it will be tuned better to that frequency you want. It will be more sensitive and won’t listen to a lot of surrounding noise. What happens with a wide band antenna is that is supports a wider band but at the same time less efficiently.
I couldn’t find a seller in Germany that has a 2600mhz only antenna but here is one close enough:
https://www.amazon.de/Leluckly1-Multifunktional-erfüllen-unterschiedliche-Bedürfni-Weiß/dp/B07YJWMNWF/