Home |
Search |
Today's Posts |
#8
|
|||
|
|||
depth finder transducer frequency question
A lot of talk here of audio signal generators.
Although depth sounders are referred to as "sonar" they do not work at audio frequencies. Hi-Fi equipment can work up to 20K (salesmen and status-seekers will clain more) This is the upper level for people with good hearing. By the time we can afford boats and gadgets out hearing has deteriorated to much below this. Modern depth sounders work at 200K. This is radio frequency. Some years ago the most popular channel on BBC radio was on 200k. It would seem that, if you wish to test your fishfinder, you might be better off using a thirty year old European broadcast receiver and hold the antenna to the transducer. Henry |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Eagle Depth Finder Transducer Problems | General | |||
Depth sounder transducer question | Cruising | |||
Replacing Lowrance depth finder | General | |||
Depth Finder - Two questions | General | |||
Depth Finder - Two questions | Boat Building |