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Drift nets fishing beacons

15. října 2008 v 15:31 | Petr, OK1RP |  Beacons

Radio Buoy System
For long liner, Drift nets fishing vessels, using radio buoy system is effective way to detect the net's position. By connecting radio buoy, TB-558 and TB-308, and a fishing gear, such as long liner and raft with a glass ball, the radio buoy transmits its signal to the fishing vessels. Direction finder, TD-C358, TD-A157 and TD-L2200, can detect the buoy position by homing method and display buoys' direction.
With sele-call radio buoy, TB-558S and TB-308S it is much cost effective and avoid own nets or line are caught by other fishing vessels. The sele-call buoys transmits its answer signal only when they receive calling signal from mother vessels. Calling signal is decided for each sele-call radio buoy and the signal itself is generated by calling signal generator, such as model, TR-L371/371A and new model THR-L400/400-II. THR-L400 can generate calling signal and this model has built-in transmitter, this model can transmit calling signal to call sele-call radio buoy without other external transmitter, such as SSB. In case of using THR-L400-II, by connecting an external transmitter, calling signal is generated by THR-L400-II and transmitted through the external transmitter.
When sele-call radio buoy receive its own calling signal, it starts to transmit answer signal to inform mother vessel from which direction answer signal is transmitted. Then, to detect which direction sele-call radio buoy is flowing, direction finder, such as TD-C358, and TD-A157, is used. Direction finder, detects the buoy's direction and fishing will be completed successfully.
New model, Hybrid Direction Finder, TD-L101 can call sele-call radio buoy and detect the buoy position by its all in one main unit.


Sele-call Radio Buoy System















More informations i will post as soon as I will have prepared.

73 - Petr, OK1RP
...-.-
 

1 člověk ohodnotil tento článek.

Komentáře

1 Petr janásek Petr janásek | E-mail | Web | 25. října 2010 v 12:11 | Reagovat

Uvítal bych (a asi nejen já)verzi v češtině

2 Sunil Sunil | E-mail | Web | 11. ledna 2012 v 12:43 | Reagovat

Requirement Details
===================

The boat captain wants to get the location of buoy which is knotted with fishing equipment.

The boat captain will have handheld GPS receiver (boat side) to receive the location of GPS/RF transmitter (buoy side).

The communication distance between GPS receiver (boat side) and GPS/RF transmitter (buoy side), the range from 1km to 10km (min) and higher.

The boat captain wants to search the location of GPS/RF transmitter (buoy side) by feeding the ID of GPS/RF transmitter (buoy side).

The battery backup for GPS/RF transmitter (buoy side) must be 48hrs (min).

This device should work in deep sea (India) and there is no GSM.

Please send me the best offer for the same.

3 Jack E. Yakana Jack E. Yakana | E-mail | 19. června 2012 v 4:57 | Reagovat

Please give me the price for each radio buoy.

Thank you.

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