10
150'/300' TOW LINE
PROTON 4
Pre Amp
+ Tuning
Ballast
Sensor Coils
Interconecting
Tubing
Tow Arm
Tow Point
Removable Tail Section
SYSTEM BREAKDOWN
The PROTON 4 is a Proton Magnetometer which consists of a FISH, TOW LINE, and CONTROL BOX.
CONTROL BOX
FISH
FISH - The FISH is made up of a 30" long 4" PVC tube and a 20" long 6" PVC tube. The 6" tube is filled for
ballast and to isolate the sensor head (Proton Bottle) from salt water.
The 4" tube contains the Sensor Coils and the Pre-Amplifier. The Pre-Amplifier contains a 10 position tuning
switch which tunes the Fish to your area.
The Fish must be capable of being tuned from 24,000 to 61,000 gammas (see world map). To optimize tuning,
a ten position binary switch (100 different combinations) is used to cover the full range of gammas. Each
switch position covers a large area, and the position that covers your area has already been selected at the
factory (this will be explained later). See P6 on page 19 for more details on tuning.