5
真運動表示の開始 ·····························································································································61
真運動表示の解除 ·····························································································································62
3.3.25 他船（物標）の動きを監視するとき ·····················································································64
1．レーダ航跡表示をする ················································································································64
レーダ航跡表示の開始 ················································································································64
レーダ航跡表示の終了 ················································································································64
2．見張りアラームを使用する ········································································································ 64
ガードゾーンの設定····················································································································64
アラームモードの変更 ················································································································66
ガードゾーンの終了····················································································································66
ガードゾーンの呼び出し ············································································································66
アラーム感度の変更····················································································································66
3.4 その他便利な機能····························································································································67
3.4.1 自船速力を指示機に表示するには ·························································································67
3.4.2 船首方位を指示機に表示するには ·························································································67
3.4.3 自船の位置情報（緯度／経度、ロランC時間差）や目的地の位置情報 （緯度／経度）
を表示するには ························································································································68
位置情報の表示 ···························································································································68
位置情報の消去 ···························································································································68
3.4.4 目的地を表示するには ············································································································ 69
目的地の表示 ·······························································································································69
目的地の消去 ·······························································································································69
3.5 知っておきたいこと························································································································ 70
3.5.1 電池（BT1）の交換 ················································································································70
3.5.2 使用中に不可解な現象が起きたとき ·····················································································71
3.6 外部航法装置について ····················································································································72
3.6.1 方位情報を得るには················································································································ 72
3.6.2 速力情報を得るには················································································································ 72
3.6.3 位置情報を得るには················································································································ 72
3.6.4 目的値までの距離情報を得るには ·························································································73
第4章 画面の見方 ······································································· 74
4.1 物標の高さと物標までの距離·········································································································74
4.2 物標からの反射 ·······························································································································75
4.3 電波の伝搬路の状況························································································································ 75
4.3.1 海面反射···································································································································76
4.3.2 偽 像···································································································································76
4.4 レーダトランスポンダ（SART）の画面表示 ···············································································78
