AGL - Video camera Speco Technologies - Free user manual and instructions
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| Brand | Speco Technologies |
| Model | AGL |
| Product Type | Audio Ground Loop Isolator |
| Audio Bandwidth | 20 Hz to 20 kHz (-3dB) |
| Frequency Response | @Ref 600 Ohm: @300Hz= ±0.35dB, @4kHz= ±0.35dB |
| Insertion Loss | @1kHz, 0dBm |
| Return Loss | @Ref 600 Ohm: @300Hz= 20dB min, @1kHz= 22dB min, @4kHz= 22dB min |
| Turn Ratio | @18kHz, 1Vrms |
| Audio Input Impedance | 600 Ω, 12.3 Vrms |
| Audio Input/Output Ports | 1 x 3.5mm Phone Jack, 1 x 3.5mm Phone Plug |
| Operating Temperature | 32 to 131°F (0 to 55°C) |
| Storage Temperature | -4 to 185°F (-20 to 85°C) |
| Humidity | Up to 95% |
| Dimensions | 21 x 1.1 x 1 inches (552 x 29 x 25 mm) |
| Weight | 0.11 lbs (50 g) |
| Primary Function | Reduces audio signal interference caused by ground loops |
| Compatible Devices | Stereo audio equipment, computers, powered speakers |
| Installation | Connect between audio source and destination via 3.5mm jacks |
| Power Source | Passive (no external power required) |
| Cleaning | Wipe with dry cloth; do not use liquids |
Frequently Asked Questions - AGL Speco Technologies
What is an audio ground loop isolator and how does the AGL work?
An audio ground loop isolator breaks the ground path between two devices using a transformer, eliminating hum and buzz caused by voltage differences. The AGL uses a 1:1 isolation transformer to pass audio while blocking DC ground loops.
How do I connect the AGL to my system?
Connect the 3.5mm plug into the audio source (e.g., computer headphone jack) and the 3.5mm jack to the powered speakers or amplifier. The isolator is bidirectional, so orientation does not matter.
Will the AGL reduce audio quality?
The AGL has a flat frequency response (20Hz-20kHz) and minimal insertion loss (0dBm at 1kHz), so it will not audibly degrade audio quality. It may slightly affect impedance, but for consumer devices it is negligible.
Can I use the AGL with 2.5mm jacks or RCA connectors?
No, the AGL is designed only for 3.5mm stereo jacks. For other connectors, you would need adapters or a different model.
Why does my audio still have hum after installing the AGL?
If hum persists, ensure the isolator is correctly connected and both devices are powered from the same electrical circuit. The AGL only breaks ground loops; other causes like electromagnetic interference may require additional shielding.
Is the AGL compatible with both stereo and mono audio?
Yes, it supports stereo audio on a 3.5mm TRS connector. For mono devices, the signal will be summed to both channels.
Does the AGL require external power?
No, the AGL is a passive device and does not require any power source. It uses transformers to isolate the ground.
What are the dimensions of the AGL?
The AGL measures 21 x 1.1 x 1 inches (552 x 29 x 25 mm) and weighs 0.11 lbs (50 g), making it small enough to fit in a pocket.
Can I use the AGL with unbalanced connections?
Yes, the AGL is designed for unbalanced stereo audio (tip-ring-sleeve). It will effectively break ground loops in unbalanced systems.
How do I clean and maintain the AGL?
Use a soft, dry cloth to clean the exterior. Do not use any liquids or solvents. Ensure the connectors are free of dust and debris for best performance.
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USER MANUAL AGL Speco Technologies
Audio Ground Loop Isolator Series
User Manual
Model : AGL
3.5mm Stereo Audio Ground Loop Isolator
User Manual
AGL
Introduction
AGL is an audio ground loop isolator designed to reduce signal interference caused by voltage potential differences at the ground points between two devices.
Features
- Reduces audio signal interference.
Installation View
flowchart
graph TD
A["Computer"] --> B["Ground Loop Isolator"]
B --> C["Stereo Audio"]
C --> D["Power Socket"]
D --> E["House Electrical Wiring"]
D --> F["Power Socket"]
F --> G["House Electrical Wiring"]
H["House Electrical Wiring"] --> D
I["No Hum"] --> C
User Manual
AGL
Specifications
| ITEM NO. | AGL |
| Support | |
| Audio Bandwidth | 20 to 20KHz (-3dB) |
| Frequency | @Ref 600 Ohm: @300Hz= ±0.35dB, @4Khz= ±0.35dB |
| Insertion Loss | @1KHZ, 0dBm |
| Return Loss | @Ref 600Ohm:: @300HZ= 20dB Min., @1Khz-22dB Min., @4Khz= 22dB Min. |
| Turn Ratio | @18Khz, IVrms |
| Audio Input Impedance | 600 Ω,12.3 Vrms |
| Ports & Interfaces | |
| Audio Input/ Output | 1 x 3.5mm Phone Jack, 1 x 3.5mm Phone Plug |
| Ambient Temperature | |
| Operation | 32 to 131°F (0 to 55°C) |
| Storage | -4 to 185°F (-20 to 85°C) |
| Humidity | Up to 95% |
| Physical Characteristics | |
| Dimensions | 21 x 1.1 x 1" (552 x 29 x 25mm) |
| Weight | 0.11 Lbs (50g) |
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Product information
Brand : Speco Technologies
Model : AGL
Category : Video camera