1. はじめに
This manual provides essential information for the safe and effective operation of your ICOM IC-4300 47-channel low-power transceiver. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.
The ICOM IC-4300 is a compact and lightweight low-power transceiver designed for reliable short-range communication. It supports 47 channels and features a relay type function, making it suitable for various applications requiring clear and consistent voice transmission.
2. 安全情報
Observe the following safety precautions to prevent injury, electric shock, fire, or damage to the transceiver.
- Do not operate the transceiver in explosive atmospheres (e.g., near flammable gases, dust, or powders).
- Do not attempt to disassemble or modify the transceiver. Repairs should only be performed by qualified service personnel.
- Use only specified batteries and accessories. Incorrect battery types may cause explosion or leakage.
- Keep the transceiver away from extreme temperatures, direct sunlight, and excessive moisture.
- Avoid prolonged exposure to the antenna when transmitting, as it may cause RF energy exposure beyond safe limits.
- Do not immerse the transceiver in water unless it is specifically rated for such use.
3.部品名と機能
Familiarize yourself with the various parts of your IC-4300 transceiver.
図3.1: 前面 View. This image displays the front of the ICOM IC-4300 transceiver, showing the display screen, up/down arrow buttons, 'Monitor' button, and 'Group' button. The ICOM logo is visible at the bottom.
- アンテナ： 無線信号を送受信します。
- パワー/ボリュームノブ: Turns the transceiver on/off and adjusts the audio volume.
- PTT（プッシュ・トゥ・トーク）ボタン： 押し続けると送信し、離すと受信します。
- 画面： Shows channel number, battery status, and other operational indicators.
- 上/下ボタン： チャンネルの選択とメニューのナビゲーションに使用されます。
- モニターボタン: Opens the squelch to listen for weak signals or check for activity on the current channel.
- Group Button: Activates or deactivates group communication mode.
- スピーカー/マイク ジャック: For connecting optional external speaker-microphones or headsets.
図3.2：上 View. This image shows the top of the ICOM IC-4300, highlighting the covered speaker/microphone jack and the antenna connection point.
図3.3：戻る View. This image illustrates the rear of the ICOM IC-4300, featuring the removable belt clip and battery compartment cover.
4. セットアップ
4.1 バッテリーの取り付け
- トランシーバーがオフになっていることを確認してください。
- ユニットの背面にある電池ボックスのカバーを見つけます。
- カバーをスライドさせるかラッチを解除してコンパートメントを開きます。
- Insert one AAA battery (sold separately) according to the polarity indicators (+/-) inside the compartment.
- 電池ケースのカバーをカチッと音がするまでしっかりと閉じます。
4.2 アンテナの取り付け
The IC-4300 features an integrated antenna. No external antenna attachment is required.
5. 操作手順
5.1 電源のオン/オフと音量調整
- To turn on: Rotate the Power/Volume knob clockwise until a click is heard and the display illuminates.
- To turn off: Rotate the Power/Volume knob counter-clockwise until a click is heard and the display turns off.
- To adjust volume: Rotate the Power/Volume knob while the unit is on. Clockwise increases volume, counter-clockwise decreases it.
5.2チャンネルの選択
- Use the Up/Down arrow buttons to select your desired communication channel (1-47).
- Ensure all transceivers in your group are set to the same channel for communication.
5.3 送信と受信
- 送信するには: Press and hold the PTT button. Speak clearly into the microphone (located near the speaker grille). Release the PTT button when finished speaking.
- 受け取るには: Ensure the PTT button is not pressed. The transceiver will automatically receive signals on the selected channel.
5.4モニター機能
- Press the 'Monitor' button to temporarily open the squelch. This allows you to hear very weak signals or background noise on the current channel, which can be useful for checking channel activity.
- Release the 'Monitor' button to return to normal squelch operation.
5.5 Group Mode
- The 'Group' button is used to manage group communication settings. Refer to the full user manual for detailed instructions on setting up and using group codes (CTCSS/DCS tones) for private conversations within a larger group.
6. メンテナンス
6.1 クリーニング
- Wipe the transceiver with a soft, dry cloth.
- 頑固な汚れには、布で軽く拭いてください。amp水と中性洗剤で洗い流し、乾拭きしてください。
- 強力な化学薬品、溶剤、研磨剤入りの洗剤は使用しないでください。
6.2 ストレージ
- If storing the transceiver for an extended period, remove the AAA battery to prevent leakage.
- 直射日光や極端な温度を避け、涼しく乾燥した場所に保管してください。
7。 トラブルシューティング
If you experience issues with your IC-4300, refer to the following common problems and solutions:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| 電源なし | バッテリーが消耗しているか、正しく取り付けられていません。 | 電池を交換するか、極性を確認してください。 |
| 送信も受信もできない | 間違ったチャンネルが選択されました。範囲外です。 | Verify channel. Move closer to other transceivers. |
| 音質が悪い、または雑音がある | 信号が弱い。干渉がある。音量が低すぎる/高すぎる。 | Adjust volume. Move to a clearer area. Use Monitor function. |
| Group mode not working | Incorrect group code (CTCSS/DCS) set. | Ensure all transceivers have the same group code. |
If the problem persists after trying these solutions, please contact ICOM customer support or your local dealer for assistance.
8. 仕様
| 特徴 | 仕様 |
|---|---|
| モデル | IC-4300 |
| Dimensions (W×H×D, excluding protrusions) | 47 mm × 81 mm × 26.5 mm (1.85 インチ × 3.19 インチ × 1.04 インチ) |
| 重さ | 約99.79 g（0.22ポンド） |
| トランスミッション出力 | 10mW |
| スピーカー出力 | 40 mW or more (8Ω load, 10% distortion) |
| 通信範囲 | Approx. 100-500 meters (0.06-0.31 miles), varies by conditions |
| 周波数帯域 | 400MHz帯域 |
| 動作温度範囲 | -10°Cから+ 50°C（14°Fから122°F） |
| 電源 | 1 × AAA battery (sold separately) |
| チャンネル | 47 channels (relay type) |
9. 保証とサポート
For warranty information, please refer to the warranty card included with your product or contact your authorized ICOM dealer. Keep your proof of purchase for warranty claims.
If you require technical support or service, please contact ICOM customer service or visit the official ICOM web認定サービス センターのリストのサイト。
