Humminbird RF20 Fish Finder User Manual


 
Contact Humminbird
Your Humminbird accessory is designed for trouble-free operation
and is backed by a six-month warranty.
If you have any questions, contact our
Humminbird Customer Resource Center:
By Telephone
(Monday - Friday : a.m. to : p.m. Central Standard Time):
334-687-0503
By e-mail
(typically we respond to your e-mail within three business days):
custserv@techsonic.com
For direct shipping, our address is:
Techsonic Industries, Inc.
Service Department
108 Maple Lane
Eufaula, AL 36027 USA
SPECIFICATIONS
Rod Mounted Display Specifications:
Power Requirement ..............................................................One 2450 CR Battery
Display Matrix..................................................................................48 X 32 Pixels
Display Type
........................................................................................ STN
RSS Specifications:
Power Requirement ................................One non-replaceable Lithium RSS Battery
Battery Expected Life..................................................................................3 years
(approximately 400 hours of in-water use)
Depth Capability .................................................... 2 - 100 feet (0.6 - 30 meters)
Sonar Coverage ............................................................................ 90° @-10 dB*
Sonar Operating Frequency .................................................................... 120 kHz
Operational Radio Frequency .............................................................. 916.5 mHz
(433.92 mHz International)
Operational Range ................................................................ 100 feet (30 meters)
* Area of bottom coverage equals twice the current depth.