I am a land surveyor. During the course of GPS work, I use a pair of Topcon Hiper Pro GNSS receivers. There are several communication capabilities involved in these units (receive satellite signals, bluetooth to external computer, etc.) but one of these capabilities is that each receiver is capable of transmitting and receiving a UHF signal in the 461-465 MHz range. l have an FCC license to transmit at powers up to 35 watts.
If I am working in a busy developed area, others (both licensed and unlicensed) may be using the frequencies that I am permitted to use. At the moment, it is guesswork for me to understand whether someone is using a particular frequency, and this is the reason for my post.
I am looking for advice as to what would be the options to determine the status of a particular frequency in the field. In other words, I'd like to be able to "listen in" on the frequency by using some sort of radio capable device (scanner? handheld?). I'm not sure if communications in this range can be literally "heard" or whether they need to be "seen" on some sort of graphic device, but the bottom line is that I'd like to be able to accurately and quickly tell whether a particular frequency is occupied. A sub-goal, I suppose, would be to be able to determine whether the chosen frequency is "clean" from miscellaneous noise/interference.
Could someone point me in the right direction?
Al
If I am working in a busy developed area, others (both licensed and unlicensed) may be using the frequencies that I am permitted to use. At the moment, it is guesswork for me to understand whether someone is using a particular frequency, and this is the reason for my post.
I am looking for advice as to what would be the options to determine the status of a particular frequency in the field. In other words, I'd like to be able to "listen in" on the frequency by using some sort of radio capable device (scanner? handheld?). I'm not sure if communications in this range can be literally "heard" or whether they need to be "seen" on some sort of graphic device, but the bottom line is that I'd like to be able to accurately and quickly tell whether a particular frequency is occupied. A sub-goal, I suppose, would be to be able to determine whether the chosen frequency is "clean" from miscellaneous noise/interference.
Could someone point me in the right direction?
Al