Unlocking the secrets of walkie talkie and HT range testing with my latest video. Discover why these devices are mosttly reliable at under 500 metres, and how factors like a clear line of sight as well as elevation (say on a hilltop) can increase or degrade performance. Join us as we examine the science behind walkie talkie antenna gain, and see some real-time software modeling of range on a real map.
Featuring (Retevis RB639) - here's Fred's video: • Retevis RB639 PMR 446M...
Experience tells us that walkie talkies are mostly reliable at around 500 metres. However, sometimes you can get a greater range, for instance if you are in the clear or on top of a hill. We look at why this is, the software used to check the gain and we can even model the range over a live map. Tune in to understand.
The supplier tells me there is a deal here.. Here they are:
2 Pcs: www.amazon.co.uk/dp/B0BDR5XG6...
4 Pcs: www.amazon.co.uk/dp/B0BDR7B4C...
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