1. הקדמה
This user manual provides comprehensive instructions for the installation, operation, and maintenance of the Triax MFA 657 LTE 700 Masthead Amplifier. This device is designed to amplify terrestrial television and radio signals, ensuring optimal reception quality. Please read this manual thoroughly before installation and use to ensure safe and correct operation.
2. זיכערקייַט אינפֿאָרמאַציע
שטענדיק אָבסערווירן די פאלגענדע זיכערהייט מיטלען צו פאַרמייַדן שאָדן אָדער שעדיקן צו די מיטל:
- Ensure the power supply is disconnected before making any connections or adjustments.
- דו זאלסט נישט ויסשטעלן די amplifier to moisture, rain, or extreme temperatures.
- אינסטאלירט דעם אפאראט אין א גוט-ווענטילירטן ארט כדי צו פארמיידן איבערהיצונג.
- Only use the specified power supply (24 VDC) for this unit.
- ויסמיידן פּלייסינג די ampלאָזט דעם לײַפֿער לעבן היץ־קוואַלן אָדער אין דירעקטער זון.
- פרובירט נישט צו עפענען אדער פאררעכטן דעם איינהייט אליין. לאָזט איבער אלע סערוויסעס צו קוואַליפֿיצירטע פּערסאָנעל.
3. פּראָדוקט איבערview
The Triax MFA 657 LTE 700 is a masthead amplifier designed to boost signals from various antenna types. It features multiple inputs with adjustable gain to optimize signal levels for different frequency bands.
Figure 3.1: Triax MFA 657 LTE 700 Masthead Ampליפער
This image displays the Triax MFA 657 LTE 700 Masthead Amplifier. The top cover is open, revealing the internal amplifier unit. The unit features three input ports labeled 'UHF', 'BIII/DAB/RNT', and 'FM', along with a DC power input and an output port. A label on the unit provides key specifications including part number 340557, frequency ranges for UHF (470-694MHz), BIII/DAB/RNT (174-230MHz), and FM (87-108MHz), adjustable gain levels for each input, a maximum output level of 108 dBuV, and power requirements of 24V/42mA.
שליסל פֿעיִקייטן:
- טייל נומער: 340557
- מאָדעל: MFA 657 LTE 700
- אַרייַנשרייַבן: UHF, BIII/DAB/RNT, FM
- Adjustable Gain:
- UHF: 20-35dB
- BIII/DAB/RNT: 10-22dB
- FM: 10-22dB
- אָפטקייַט ריינדזשאַז:
- UHF: 470-694 מהז
- BIII/DAB/RNT: 174-230MHz
- עפעם: 87-108 מהז
- מאַקס. רעזולטאַט מדרגה: קסנומקס דבווו
- מאַכט צושטעלן: 24 וודק, 42 מאַ
4. סעטאַפּ און ייַנמאָנטירונג
Follow these steps for proper installation of your Triax MFA 657 LTE 700 Masthead Ampלייבער:
- מאָונטינג: סיקיורלי אָנקלאַפּן די amplifier to a mast or suitable outdoor structure using appropriate mounting hardware (not included). Ensure it is positioned to minimize cable length from the antennas.
- אַנטענע קאַנעקשאַנז:
- Connect your UHF antenna cable to the input port labeled UHF.
- Connect your BIII/DAB/RNT antenna cable to the input port labeled BIII/DAB/RNT.
- Connect your FM antenna cable to the input port labeled FM.
- Ensure all F-connectors are tightened securely to prevent signal loss and moisture ingress.
- רעזולטאַט קשר: פאַרבינדן די רעזולטאַט קאַבלע פון די amplifier to your indoor distribution system or directly to your television/receiver. This cable will also carry the 24 VDC power to the ampליפער.
- מאַכט צושטעלן קאַנעקשאַן: Connect the 24 VDC power supply (not included, typically a power inserter) to the indoor end of the output cable. Ensure the power supply is compatible with the amplifier's requirements (24V/42mA).
- מאַכט אויף: Once all connections are secure, plug in the power supply. The amplifier will now be active.
5. אָפּעראַציע
The Triax MFA 657 LTE 700 operates automatically once powered. The primary operational aspect is adjusting the gain for each input to achieve optimal signal levels without overdriving your receiver.
געווינס אַדזשאַסטמאַנט:
די amplifier features adjustable gain controls for each input (UHF, BIII/DAB/RNT, FM). These controls are typically small potentiometers located on the amplifier unit, as shown in Figure 3.1. Use a small screwdriver to carefully adjust the gain for each band:
- UHF Gain: Adjustable from 20dB to 35dB. Adjust this to optimize digital terrestrial television (DTT) signals.
- BIII/DAB/RNT Gain: Adjustable from 10dB to 22dB. Use this for DAB radio and other BIII band signals.
- FM Gain: Adjustable from 10dB to 22dB. Adjust for optimal FM radio reception.
רעקאָמענדאַציע: Start with the lowest gain setting and gradually increase it until you achieve a clear, stable picture and sound on your television or radio. Avoid setting the gain too high, as this can lead to signal distortion and pixelation (overdriving).
6. וישאַלט
The Triax MFA 657 LTE 700 Masthead Amplifier is designed for minimal maintenance. However, periodic checks can ensure its longevity and optimal performance:
- קאַבלע קאַנעקשאַנז: Periodically inspect all F-connectors for corrosion or looseness. Ensure they are clean and tightly secured.
- וועטער שוץ: While designed for outdoor use, ensure the housing is intact and free from cracks or damage that could allow water ingress.
- רייניקונג: If necessary, gently wipe the exterior of the unit with a soft, damp שטאָף. דו זאלסט נישט נוצן האַרב קעמיקאַלז אָדער אַברייסיוו קלינערז.
- ענוויראָנמענטאַל סיבות: Ensure no debris (e.g., leaves, bird nests) is obstructing the unit or its ventilation.
7. טראָובלעשאָאָטינג
אויב איר דערפאַרונג ישוז מיט דיין ampליפיער, זעט די פאלגענדע פראבלעם-לייזונג אנווייזונג:
| פּראָבלעם | מעגלעך סיבה | לייזונג |
|---|---|---|
| קיין סיגנאַל אָדער שוואַך סיגנאַל |
|
|
| Pixelation or distorted picture/sound |
|
|
| No power indicator (if applicable) |
|
|
8. ספּעסאַפאַקיישאַנז
| שטריך | ווערט |
|---|---|
| מאָדעל נומער | 340557 |
| סאָרט | טריאַקס |
| Input 1 (UHF) Frequency Range | 470-694 מהז |
| Input 1 (UHF) Adjustable Gain | 20-35 דב |
| Input 2 (BIII/DAB/RNT) Frequency Range | 174-230 מהז |
| Input 2 (BIII/DAB/RNT) Adjustable Gain | 10-22 דב |
| Input 3 (FM) Frequency Range | 87-108 מהז |
| Input 3 (FM) Adjustable Gain | 10-22 דב |
| Noise Factor (UHF) | 2 דציבל אדער 2.5 דציבל |
| Noise Factor (BIII/DAB/RNT) | 2.5 דב |
| Noise Factor (FM) | 2.5 דב |
| מאַקסימום רעזולטאַט מדרגה | קסנומקס דבווו |
| מאַכט צושטעלן | 24 וודק, 42 מאַ |
| נומער פון אַוטפּוץ | 1 |
9. וואָראַנטי און שטיצן
Information regarding product warranty and customer support contact details was not available in the provided product data. Please refer to the product packaging or the official Triax website for the most up-to-date warranty terms and support information.
For technical assistance or further inquiries, it is recommended to visit the official Triax website or contact your local Triax distributor.





