Z Axis-2F Dual Frequency Hydrographic Echo Sounder

Original price was: $5,500.00.Current price is: $4,940.00.

This Z Axis 2F is our most popular payload for most applications. It features a fixed 200khz high frequency and user selectable low frequency, most commonly 28khz but can also be set to 10, 12, 18 24 or 30khz.

The ZA2F really stands out in the market as the only system capable of reliably operating (Including on the low frequencies) in water as shallow at 1 foot! (Seriously, just ask us for sample results!) As such, it pairs very well with our boats which are commonly used in shallow water environments.

In addition to exceptional shallow water performance, it also has very narrow beamwidth on both the high and low frequencies (5 and 3.5 degrees) meaning it will work in most environments, including sloping contours. This means you won’t have to rely on “area averaging” pseudoscience – you will receive accurate high/low data for each ping, at each location, with no to minimal post processing required.

Differences between depths calculated from the high and low frequencies can be used to determine siltation thickness and locate “liquid mud” in navigation channels.  

SKU: UNABARA-ZAXIS2F Categories: , Tags: ,


Frequency 1: 200 Khz.
Frequency 2: 30, 28, 24, 18, 12, or 10 Khz. (Field Selectable)


1.25 inch NPT Pipe Mounting
(optional one inch survey pole adapter is available)

Maximum Depth: 100 meters (330 feet)
Minimum Depth: 0.24 meters. (0.8 feet)
(for BOTH F1 and F2 frequencies)

Ping Rate: 5, 10, or 20 hz. (user selectable)

User Inputs:  
Sound Velocity
Offset (Draft)
Units (meters or feet)
Blanking Gate Depth

Hands-Off Operation
After setup, operation of the Z Axis-2F is fully autonomous with no user intervention needed.

Seamless Sea Bottom Tracking
Assured by Unabara’s proprietary machine learning algorithm which anticipates changes in bottom conditions by analyzing the metrics of every returning ping.

Direct Depth Input:
Direct input of depth(s) (Z data) to PC based mapping programs or data collectors (Trimble, Carlson, Leica, Topcon and others) via RS-232 or USB.

Output Sentences:  
· DESO-20

Baud Rate: 9600 to 115,200 (user selectable).

Simple Setup  
Using included Z Axis Windows-based PC Control & Monitoring software APP

Power Input: 12 volts D.C. @ 150ma.
(Optional external battery and charger available)

Narrow Acoustic Beam Widths
• For both F1 (5 degrees) and F2 ( 3.5 degrees).
• Results in small ensonified footprint of the sea bottom.
• Best horizontal spatial resolution of any survey echo sounder.

Sediment Thickness
Differences between depths calculated from F1 and F2 frequencies can be used to determine siltation thickness and locate “liquid mud” in navigation channels. Both of the above are of particular interest  in dredging operations.

Additional information

Weight 2 lbs
Dimensions 5 × 5 × 10 in

Adapter to One Inch Survey Pole $36.00 USD
(Adapts 1.25 inch NPT mount on BSU to 5/8 female insert on pole)
Stock # SPA-1

Survey Pole Section (Length = 1 foot) $39.50 USD
(1 inch O.D., Red-Orange, with 5/8-11 male/female ends)
Stock # SPSE-1OD-RO-1

Tiltable Transom Mount for Survey Pole $120.00 USD
Stock # TTM-1ODR
(weight = 4 lbs.;  1.8 kg.)

BSU Extension Cable Assembly $ 197.00 USD
(length = 10 feet; 3.3 meters)
Stock # BSU-EC-10F
(weight = 2 lbs.;  0.9 kg.)

External Rechargeable LiFePO4 Battery $180.00 USD
Pack (with Charger, AC Input 100 to 240 VAC; 50/60 hz.)
(Fully charged battery will operate Z Axis-2F™ for ~40 hrs.)
Stock # RBPC-7
(weight = 2 lbs. 2 oz.; 1.8 kg.)

Moulded WK-7 Resin Polymer Carrying Case $395.00 USD
(Weatherproof, IP-67 rated, suitable for shipping, four double action latches, gasketed;  all stainless steel hardware; internal foam customizable;  able to accommodate all accessory items
listed above;  suitable for customer supplied TSA compliant locks)
Stock # 945Y (Color: Yellow)
(weight = 10.6 lbs.; 4.8 kg.)
(Outside L = 25.1 inches;  638 mm, W = 19.9 inches;  505 mm; H = 8.8 inches, 224 mm)