6507 Active Shielded Loop
Frequency Range: 1 kHz – 30 MHz
The Model 6507 is an active receiving loop antenna. A preamplifier is built into the base and provides a 50-ohm output and this helps this loop antenna produce good sensitivity and almost constant antenna factors.
The saturation indicator is activated when an incoming signal exceeds the 5 V/m saturation limit of the internal preamplifier. Power for the preamplifier is supplied by rechargeable sealed batteries.
Front panel controls and indicators for the preamplifier include a power switch, power-on indicator, saturation indicator, and a receptacle for a battery charger.
Every active shielded loop antenna is individually calibrated in accordance with the IEEE-291 Section 2.3.1 methods, using NIST traceable equipment.
Electrical Specifications
| Frequency Minimum | 1 kHz |
| Frequency Maximum | 30 MHz |
| 1 dB Comp. Point | 10 V/m |
| Connectors | BNC (f) |
| Dynamic Range | 116 dB @ 1 MHz 76 dB @ 10 kHz |
| Impedance (Nominal) | 50 Ω |
| Pattern Type | omnidirectional |
| Polarization | linear |
| Power Required | 13.8 VDC |
| Sensitivity (Typical) | 11 dB(µA/m) @ 10 kHz -29 dB(µA/m) @ 1 MHz |
