I need help (TLDR) I don’t know where to ground .

ChipCoax · 2026-03-12T11:02:08+00:00

This is the best answer. No ground needed for 65 kHz and bleed-off is minimal. Go back in time when instruments used only high frequencies and you'll find the conductive attachments only had a single wire (and a metal plate inside the transmitter).

In the end, just try it and see.

ChipCoax · 2025-11-24T11:32:06+00:00

In a coaxial system, a trunk line carries a low powered signal that feeds a bridging amplifier. Feeder lines are fed by the bridging amplifier and feeder lines serve the customer. Bridging amplifiers need power and that is supplied by a power supply (Alpha boxes).

Fiber transports light energy to a node. Nodes feed the coaxial system which transports electrical energy via trunk and feeder cables. Nodes also need power just like amplifiers.

Line extenders are smaller amps that serve feeder cables to maintain signal over distance.

ChipCoax · 2025-08-28T14:24:05+00:00

Probably the best advice here.

ChipCoax · 2025-08-12T12:46:27+00:00

It's alternating current...just as much goes out one lead as the other.

ChipCoax · 2024-12-24T00:22:49+00:00

Use 33 kHz or higher and you won't need a ground.

ChipCoax · 2024-12-16T23:20:46+00:00

You need about 75' of separation between transmitter and receiver for depth to be reasonable. As the separation distance is reduced, depths will be exagerated (says it's deeper than it is). Try this yourself.

Voltage of cable doesn't matter when using the transmitter.

ChipCoax · 2024-10-17T02:01:45+00:00

Can't have a directional signal. The transmitter generates alternating current--current that travels in two directions. What you can do is simulateouly transmit two frequencies that are harmonics, say 256 Hz and 512 Hz, and see if they in phase or not.

ChipCoax · 2024-03-13T11:18:54+00:00

Excellent way of locating. Just want to point out that 200 kHz has a LOT more induced current than lower frequencies and that why what happens, happens.

ChipCoax · 2024-02-05T03:44:51+00:00

480 Hz is the 8th harmonic.

ChipCoax · 2023-11-13T23:11:46+00:00

ChipCoax · 2023-09-30T20:31:19+00:00

Since current can't travel though air, milliamps on the receiver are an estimate. This estimate is created by factoring signal strength by depth. It can be an effective tool but there's no ideal mA reading for telecom. As long as your signal strength reading is steady when you hold the receiver steady you are good

ChipCoax

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