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The 200 kHz transducer will give you better detail and definition, but
less depth penetration. The 50 kHz transducer will give you greater
depth penetration, but a little less detail and less definition. (Remember,
all sonar units typically read deeper in fresh water than in salt water.)
There is a common exception to these rules of thumb. Some fishermen
on freshwater lakes (or the ocean) using downriggers like to see them
on the sonar. In many of those cases, you'll see a 50 kHz transducer
frequency in use because the wider cone angle lets them watch the bait.
Sonar Features menu with a frequency of 200 kHz selected.
To change the frequency setting to 50 kHz:
1. From the Sonar Page, press
MENU
|↓ to
S
ONAR
F
EATURES
|
ENT
.
2. Press ↓ to
50
K
H
Z
|
ENT
.
3. Press
EXIT
|
EXIT
to clear the menu.
To change the frequency setting to 200 kHz:
1. From the Sonar Page, press
MENU
|↓ to
S
ONAR
F
EATURES
|
ENT
|
ENT
.
2. Press
EXIT
|
EXIT
to clear the menu.
HyperScroll
See the entry on Ping Speed, which controls the HyperScroll feature.
Log Sonar Chart Data
If you have an MMC installed in the unit, the sonar data shown on the
screen can be saved to the MMC. This can be played back at any time.
(To play a recorded sonar chart log, see the entry in this section for So-