The “Stealth MagLoop Element” for our MagLoop systems will work with both of Alpha Antenna’s Magnet Loop Antennas:
- Using the Model 100W MagLoop’s tuning box, it will work on 6-17M
- Using the Model EmComm MagLoop’s tuning box, it will work on 6-20M.
Here are the efficiencies for this element when compared to a resonant dipole installed at 1/2 wavelength high.
Efficiency
With a total circumference of 2.18055 Feet, this magnetic loop antenna with a 0.32-inch conductor diameter exhibits the following calculated efficiencies.
| Efficiency Chart | ||
| Center Frequency
of each Band |
S-Units loss from a resonant dipole
installed at 1/2 wavelength high |
Antenna
Efficiency |
| 6M, 52MHz | 0.62 | (-3.7 dB below 100%) |
| 10M, 28.85MHz | 1.87 | (-11.2 dB below 100%) |
| 12M, 24.94MHz | 2.22 | (-13.3 dB below 100%) |
| 15M, 21.225MHz | 2.60 | (-15.6 dB below 100%) |
| 17M, 18.118MHz | 3.00 | (-18.0 dB below 100%) |
| 20M, 14.175MHz | 3.62 | (-21.7 dB below 100%) |
REFERENCE CALCULATOR Small Transmitting Loop Antenna Calculator • 66pacific.com
For higher efficiencies, use the Larger Outer Loops that come with our MagLoop systems.
Results
The following signal reports are SSB contacts made from California over a 30-minute period, and while these are not ‘great signal reports’, they do get stronger the higher your frequency becomes:
20-Meters: 5/3 N6FCM California, 5/3 KA6NPD California, 3/3 KC7DTR Utah, 5/2 N6WL California
10-Meters: 5/5 K0MJ Kansas, 5/3 KC5NVZ Texas, 5/3 KS0MIK Kansas, 5/3 K0PJR Kansas
Specifications
- Setup: Deployable in 60 seconds.
- Modes: This Stealth MagLoop add-on is especially useful on 6-20 meters for all-mode High-Q listening & SSB/CW/Digital weak signal TX operations.
- Usage Scenario: Placement on a table/desk inside a Covert and/or Emergency Response Vehicle, Office, Apartment, Camper, Tent, or anywhere else where space is limited.
DEPICTION (ASSEMBLED)

| PARAMETER | LEADING PARTICULARS |
| Operating Parameters | MAX POWER: 50W PEP SSB, 25W CW, 10W Digital
FREQUENCY COVERAGE: 54MHz to 14MHz (6M to 20M) IMPEDANCE: 50 ohms |
| Usage Parameters | DIRECTIONALITY: Semi-Directional
PURPOSE: NVIS & DX |
| Physical Parameters | SIZE: 10-inch diameter
MOUNT: Female 5/8-11″ IP RATING: IP-53 CONNECTOR: 50-ohm Female BNC |





