How many frequencies are in a Minelab CTX 3030? Shelby Richardson April 29, 2021 18:11 Updated Question: How many frequencies are in a Minelab CTX 3030? Answer: The Minelab CTX 3030 has 28 frequencies that operate in a range between 1kHz and 100kHz. Relevant to: Minelab CTX 3030 Related articles How much is the Minelab CTX 3030? How do I register my metal detector for warranty? How to upgrade firmware for your Minelab CTX 3030 How can I fix my Minelab Excalibur II? The knob appears to be stripped. 6 Ways to Contact Kellyco Metal Detectors Comments 0 comments Please sign in to leave a comment.