GT21-TM – Sonde TA ClearVü CHIRP 500W (260/455kHz) et traditionnel 600W (50/200kHz) + capteur de température (8-pin) - Garmin image 1

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Garmin

010-01962-00

GT21-TM – TA-szonda ClearVü CHIRP 500W (260/455 kHz) és hagyományos 600W (50/200 kHz) + hőmérsékletérzékelő (8-pin)

Conçue pour la pêche côtière et hauturière, la sonde Garmin GT21-TM est un transducteur de tableau arrière à 8 broches, offrant un sonar traditionnel 600W (50/200kHz) et un sonar à balayage ClearVü CHIRP 500W (260/455kHz), avec capteur de température intégré. Elle assure une détection précise des poissons et une visualisation détaillée des structures sous-marines. Le produit inclut la sonde, le support de fixation sur tableau arrière et la documentation d'installation.

Prix publicBénéficier du tarif pro

63.677 HUF

63.677 HUF ~~80.176 HUF~~

ÁFA-val Szállítás kiszámítása a fizetéskor.

Nincs raktáron

Point relais offert dès 150€ en France
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Caractéristiques techniques

Támogatott halászati technológiák	Sonar traditionnel,CHIRP ClearVü
Halgép frekvenciái	50/200 kHz (Traditionnel), 260/455 kHz (ClearVü CHIRP)
Csúcsteljesítmény	600.0
Maximális olvasási mélység	457.0
Transzducer anyaga	Plastique
Halgép csatlakozó típusa	8 broches
Kábelhossz	9.1
Beépített hőmérséklet-érzékelő	Oui
Kompatibilis kijelzők	Traceurs de cartes et sondeurs Garmin compatibles 8 broches
Busz kompatibilitás	Propriétaire Garmin
Vezetékes hálózat	Propriétaire Garmin
Rögzítési típus	Tableau arrière
Fedettségi szög	Traditionnel: 40°/10°, ClearVü: 2.0°x51° (260 kHz), 1.4°x29° (455 kHz)
CHIRP magas frekvencia	445-465
CHIRP alacsony frekvencia	245-275
Clearvu Sonar Power Output	500
Halászati típus	Mer, Lac, Rivière
Hull Material Compatibility	Tous types
Hull Type Not Recommended	Voiliers, Coques à redans
Beépített sebességérzékelő	Non
Max Operating Speed Sonar Kph	54.7
Min Propeller Clearance	38
Mounting Method Details	Fixation au tableau arrière avec support et vis
Kiadási év	2015.0
Traditional Sonar Horizontal Beam Width	40
Transom Angle Range	0° à 70°
Vulnerability Description	Dommages externes par remorques ou obstructions sous-marines
Water Contact Requirement	Constant

Description détaillée

A Garmin GT21-TM szonda part menti és nyílt tengeri halászathoz készült, 8-polos hátsó táblás (transom) átviteli transzducer, amely kombinálja a hagyományos szonár és a CHIRP ClearVü pásztázó szonár képességeit. Részletes víz alatti szerkezetek és halívek képét szolgáltatja, javított célszétválasztással.

Fejlett szonár képességek

A GT21-TM hagyományos szonárja 50/200 kHz-es frekvencián működik 600 W teljesítménnyel, elérve a 457 m-es (1500 láb) maximális mélységet. A nyalábszélessége 40°/10°. Ugyanakkor a CHIRP ClearVü szonár 500 W teljesítményt biztosít 260/455 kHz-es frekvenciákon (CHIRP tartományok: 245–275 kHz és 445–465 kHz), 2,0°x51°-es és 1,4°x29°-es nyalábokkal 260 kHz-en és 455 kHz-en, elérve a 305 m-es (1000 láb) maximális mélységet. Ez a kombináció sokoldalú érzékelést tesz lehetővé különböző halászati körülmények között, szemben az egyfrekvenciás vagy egytechnológiás szondákkal.

Integráció és teljesítmény

A GT21-TM szonda beépített, gyors válaszidejű hőmérsékletérzékelővel és 9,1 m (30 láb) hosszú kábellel rendelkezik, hátsó táblás (transom) telepítésre készült, 0°–70°-os táblaszögeket támogatva. Ellentétben a Gerincen átmenő (thru-hull) vagy belső (in-hull) szondákkal, mint például a Garmin GT-TH vagy LVS-TH modellek, egyszerűbb telepítést kínál, miközben kompatibilis a legtöbb hajótest anyaggal. Optimális teljesítményt 34 mph alatti sebességeknél nyújt, és a hajócsavar által keltett turbulenciától távol kell telepíteni a folyamatos jelminőség érdekében.

Documentations

Type	Nom
	Notice d'installation - Guide de placement de la sonde (EN)
	Notice d'installation - Instructions d'installation de la sonde tableau arrière Garmin GT21-TM (EN)

Avis de l'expert

Pol CONIN

Digital Manager

« Technical analysis of the Garmin GT21-TM transducer: Dual Sonar capability and TA installation »

The Garmin GT21-TM transducer is a relevant solution for recreational boats and sport fishing vessels requiring detailed underwater mapping without the constraints of a through-hull installation. Its transom-mount design makes it particularly suitable for trailerable boats or users seeking quick and reversible deployment. Although it is more exposed to external damage than in-hull transducers, its mounting allows fine adjustment of tilt to optimize the sonar beam—a crucial advantage for compensating for variations in boat load or sea conditions.

For optimal performance, it is essential to follow location recommendations, particularly keeping clear of the propeller and turbulence zones (prop wash), while considering the propeller’s rotation direction. Proper installation ensures signal stability at moderate speeds. This model, with its dual traditional sonar and ClearVü capabilities, offers versatile functionality for locating fish in the water column and identifying structures. It stands out for this versatility compared to purely traditional transducers, providing better understanding of the underwater environment without the investment in more advanced technologies like SideVü or LiveScope, which often require compatible displays and higher budgets. It is important to note that for hulls with high deadrise angles or for use at very high speeds (>34 mph), a through-hull transducer may offer better signal stability.

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GT21-TM – TA-szonda ClearVü CHIRP 500W (260/455 kHz) és hagyományos 600W (50/200 kHz) + hőmérsékletérzékelő (8-pin)

63.677 HUF

63.677 HUF ~~80.176 HUF~~

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Questions fréquentes

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What type of transducer is the Garmin GT21-TM?

The Garmin GT21-TM is a transom-mount transducer designed for external installation at the rear of the boat. It combines traditional sonar and CHIRP ClearVü scanning sonar technologies.

Which sonar technologies does the GT21-TM transducer use?

The GT21-TM transducer uses two main sonar technologies:

Traditional sonar, which provides clear fish arches and excellent target separation. CHIRP ClearVü scanning sonar, which delivers near-photographic images of underwater structures and fish below your boat.

What are the frequencies and power of the traditional sonar in the GT21-TM?

The GT21-TM sounder's traditional sonar operates on 50/200 kHz frequencies with 600 W power.

What are the frequencies and power output of the ClearVü CHIRP sonar in the GT21-TM?

The CHIRP ClearVü sonar of the GT21-TM transducer operates on frequencies of 260/455 kHz (CHIRP ranges: 245-275 kHz and 445-465 kHz) with a power of 500 W.

What is the maximum depth the GT21-TM transducer can reach?

The GT21-TM transducer can reach a maximum depth of 457 meters (1,500 feet) using traditional sonar (50/200 kHz) and 305 meters (1,000 feet) with CHIRP ClearVü sonar (260/455 kHz).

Does the GT21-TM transducer include a temperature sensor?

Yes, the Garmin GT21-TM transducer has a built-in fast-response temperature sensor.

What is the cable length and connector type of the GT21-TM depth sounder?

The GT21-TM transducer is supplied with a 9.1 m (30 ft) cable and features an 8-pin connector.

What are the beam angles for the traditional sonar and ClearVü of the GT21-TM?

The beam angles of the GT21-TM transducer are:

For traditional sonar: 40°/10°. For CHIRP ClearVü sonar: 2.0°x51° at 260 kHz and 1.4°x29° at 455 kHz.

How should the Garmin GT21-TM transducer be installed on the boat?

The GT21-TM transducer is a transom-mounted transducer. It must be mounted on the transom of the boat using a bracket and screws. Installation requires drilling holes in the transom for the bracket and potentially for cable routing. It is critical to mount it so that it has direct contact with smooth, undisturbed water, away from turbulence.

What tools are required to install the GT21-TM transducer?

To install the GT21-TM transducer, you will need the following tools:

A drill and drill bits.
Two 13 mm Allen keys.
A #2 Phillips screwdriver.
Masking tape.
Marine sealant.

Where should I install the transducer on the transom for optimal performance?

For optimal performance, the transducer must be installed:

As close as possible to the center of the boat.Away from propellers, strakes, reinforcements, water inlets or outlets, and anything that could create air bubbles or turbulence.In an area where it is not at risk of damage during launching, towing, or storage.Parallel to the boat's waterline.

How to avoid interference with the depth sounder signal?

To minimize interference:

Mount the transducer away from sources of electromagnetic (electronic devices, engines, radar) and acoustic (other transducers, boat machinery, wind, waves) interference.
Avoid areas of turbulence caused by hull features or propeller wash.
If the transducer cable must cross a power cable, orient the cables at 90 degrees.
If using multiple transducers, mount them at least 60 cm (24 inches) apart and avoid operating two transducers of the same frequency simultaneously.

What is the diameter of the hole to drill to pass the depth sounder cable through the transom?

For the 8-pin cable of the GT21-TM transducer, you will need to drill a 25 mm (1 inch) diameter through-hole in the transom.

Should marine sealant be used when installing the depth sounder?

Yes, it is essential to apply marine sealant around all screws and around the cable when it passes through the transom to ensure watertightness and prevent any water ingress into the boat.

Can I install the GT21-TM transducer near the propeller?

No, it is strongly recommended to install the transducer away from the propeller. The propeller wash creates turbulence that can interfere with the fishfinder signal and damage both the transducer and the propeller. Install it at least 38 cm (15 inches) from the propeller and on the side opposite to the propeller’s rotation direction.

How to test the GT21-TM transducer installation?

To test the installation:

Put the boat in the water and turn on the chartplotter. Drive the boat at low speed and check the fishfinder is working properly. Gradually increase speed while monitoring the chartplotter. Note the speed at which the signal is lost or degraded. If the signal is lost, return to the speed where the loss occurred and make moderate turns in both directions. If the signal improves while turning, lower the transducer by 3 mm (1/8 in). Repeat the steps until the degradation is eliminated. If the signal does not improve, consider relocating the transducer.

Is the GT21-TM transducer compatible with all hull types?

Yes, as a transom-mount transducer, the GT21-TM is compatible with all hull materials.

Can this transducer be used on a stepped-hull boat or a sailboat?

The GT21-TM transducer is not recommended for use on sailboats due to excessive heel. For deep-V hulls, install the transducer at the lowest point before the first chine and away from other hull features that create turbulence.