Our freediving clubinvested in a Garmin Deeper fishing sonar and I would like to sharesome insights about it.
What is Garmin StrikerCast?
Garmin striker Cast is acastable sonar that connects to a mobile phone by Bluetooth andstreams the results to the cast app.
Hard facts:
Batterylife: 10 hours
GPS
Sonar: 260/455 kHz*
Range: 60m
*The sonar canoperate at two frequencies and has a 22x63°oval beam or 9x14° ovalbeam is usually focused enough only monitor the competition line andnot show divers at the warm up lines.
we usually attach thesonar to our trainings platform with a short string to monitor thediver and the safety diver.
The image runs from rightto left and shows a protocol of the past measurements.
Image explained from top to bottom:
red topmost line (0~1m) isthe surface and the backscatter.
blue field (1~2m) mutedarea where sonar cannot measure
green field (2~5m) thesafety diver uses a scooter and creates a lot of air bubbles whiledescending.
red U shaped line (7~15m )the safety diver descends and waits for the free diver in 15m –left side is descend to 15m, horizontal line indicates that de safetydiver is waiting at 15m,
right side shows that both divers ascend to surface
red line (22~7m) freediver ascending. (I could not fit a whole dive into one screenshot)
green line (27m) a sixpackof beer attached to a line for cooling²
green line (33m) bottomplate
green line (34m) bottomweight
green dots (35m) light and camera
²the sonar can work with two different frequencies and
what is good:
*reasonable priced
*accuracy is good
*setting are easy tounderstand and easy to find
*app is small and worksreliably without draining the battery
*diver at 60m can be seen and tracked
what is bad:
*only useful an a dryplatform or if your mobile phone is waterproof
*if attached to a buoy itmight get pulled under water and the Bluetooth connection stops untilit resurfaces.
Alternatives: deeperpro (100m Range)
if somebody isconsidering in buying one or could share experience with a deeper Iwould love to read about it.
Sg
What is Garmin StrikerCast?
Garmin striker Cast is acastable sonar that connects to a mobile phone by Bluetooth andstreams the results to the cast app.
Hard facts:
Batterylife: 10 hours
GPS
Sonar: 260/455 kHz*
Range: 60m
*The sonar canoperate at two frequencies and has a 22x63°oval beam or 9x14° ovalbeam is usually focused enough only monitor the competition line andnot show divers at the warm up lines.
Garmin STRIKER™ Cast GPS | Castable Sonar with GPS
STRIKER Cast GPS is a castable sonar that turns phones into fishfinders. View sonar with a 200’ castable range via an app display on your smartphone or tablet.
we usually attach thesonar to our trainings platform with a short string to monitor thediver and the safety diver.
The image runs from rightto left and shows a protocol of the past measurements.
Image explained from top to bottom:
red topmost line (0~1m) isthe surface and the backscatter.
blue field (1~2m) mutedarea where sonar cannot measure
green field (2~5m) thesafety diver uses a scooter and creates a lot of air bubbles whiledescending.
red U shaped line (7~15m )the safety diver descends and waits for the free diver in 15m –left side is descend to 15m, horizontal line indicates that de safetydiver is waiting at 15m,
right side shows that both divers ascend to surface
red line (22~7m) freediver ascending. (I could not fit a whole dive into one screenshot)
green line (27m) a sixpackof beer attached to a line for cooling²
green line (33m) bottomplate
green line (34m) bottomweight
green dots (35m) light and camera
²the sonar can work with two different frequencies and
what is good:
*reasonable priced
*accuracy is good
*setting are easy tounderstand and easy to find
*app is small and worksreliably without draining the battery
*diver at 60m can be seen and tracked
what is bad:
*only useful an a dryplatform or if your mobile phone is waterproof
*if attached to a buoy itmight get pulled under water and the Bluetooth connection stops untilit resurfaces.
Alternatives: deeperpro (100m Range)
if somebody isconsidering in buying one or could share experience with a deeper Iwould love to read about it.
Sg