Questions tagged [uhf]
Ultra High Frequency is the frequency range 300-3000 MHz.
4 questions from the last 365 days
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Power supply question for Anytone AT-778UV
I have an Anytone AT-778UV and I want to take it with me on vacation in a few days. I do not want to bring my HF power supply as that is too big and annoying to transport. A freind has a portibale ...
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What is the line of sight distance of a radio transmittion from a high altitude balloon or drone?
How many miles can you reliably transmit a signal from a high altitude drone or balloon? The transmissions are on 900mhz, and 2.4ghz, 5.8ghz, 60ghz ISM bands. The altitude of the balloon or drone's ...
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LoRa range problems
I have been trying to set up a pair of lora transceivers to communicate over a long distance (~3km). However after setting them up and trying them out, the maximum range i can achieve seems to be 1....
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Dual band yagi-uda radiation problem
I've recently created an yagi-uda antenna for 2m and 70 cm - specifically for 145 and 433 MHz. 8 elements for 2m and 14 elements for 70 cm. I've put 2m on MMANA-GAL and optimised by myself the 70 cm ...
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