The 10-40M 100W PEP Alpha Loop that delivers high ERP (Effective Radiated Power). Its design rejects off frequency signals and the shielded Faraday pick-up loop reduces RFI (Radio Frequency Interference).
- *Default outer loop: 10-40M, 100W PEP SSB, 50W CW, and 10W Digital
- **Just the Booster cable: 12-40M, 75W PEP SSB, 35W CW, or 15W Digital
- ***Default outer loop and Booster in a double loop: 40-80M, 20 Watts PEP SSB, 10 Watts CW, and 5 Watts Digital
- ****6 Meter, 2 Meter & 440 MHz inner loop add-on element, 50W FM
Reviews
Here is what everyone is saying about the EmComm Loop: eHam Reviews
Specifications
- *100W PEP SSB, 50W CW, and 10W digital on 10-40 meters
- ***20 Watts PEP SSB, 10 Watts CW, and 5 Watts Digital on 40-80 meters with the Optional ^40-80 Loop.
- ****6 Meter, 2 Meter & 440 MHz when the optional add-on element is purchased & installed.
- IP Rating: IP-53 – Protected against dust limited ingress, no harmful deposits. Protected against direct sprays of water up to 60 degrees from the Verticle.
- Environmental operating parameters: -15 to 90 (in direct sunlight) degrees Fahrenheit and winds up to 35 Mph
- Click Here for the bandwidth and tuned results while using just the Default Outer Loop and Clicking Here for the bandwidth and tuned results while using only the longer Booster cable.
Included
2 – 16 inch masts that couple together with a built-on coax mount
1 – Tuning box with Female 5/8 – 11 mount (Optional 1/4-20 adapter is available for photography tripods)
1 – Outer loop for 10-40M. An optional ^40-80M Loop can be daisy chained in series with the 10-40M outer loop for coverage from 7.0 to 3.5MHz.
1 – Inner shielded faraday loop
1 – Field Bag for the Alpha MagLoop
Options
+SWR Indicator – Do not exceed 10 Watts Continuous Carrier (FM, Digital, AM, etc.) while tuning or the indicator lamp will fail.
~SWR Sounder (Beeps when SWR is Low)
***40-80M Booster Loop
****6M, 2M & 440MHz Add-on Element
Materials Used
The following materials are used in the construction of the Alpha Loop antenna:
- Gold,
- Solder,
- Nylon,
- Ceramic,
- Aluminum,
- Stainless steel,
- Marine shrink tubing,
- Times Microwave LMR400, and
- 3D Carbon Fiber infused polymers.
Assembly
More Information
How is the Alpha Loop tuned?
There is a huge tuning knob that makes adjusting the loop for an SWR below 1.9:1 very easy.
Attached to between the knob and capacitor is a 6:1 reduction drive, which increases ease of tuning even more.
To tune the antenna once it is deployed, just turn the knob while listening for the loudest noise floor in SSB mode, and then transmit at 5W in FM or CW mode while you tune and watch for the minimum SWR on your rigs built in meter.
***How is the ^40-80M Cable installed for coverage of 40 to 80 meters?
Install the Booster Cable as a double loop to form an outer loop that is over 21 feet in total length, which increases skin effect thereby increasing efficiency.
**How can efficiency be increased on 12-40 meters?
Increase the efficiency by over 20% on 12-40 meters at75W PEP SSB, 35W CW, or 15W Digital by only using the included longer outer loop Booster Cable in lieu of the shorter default Outer Loop.
How can the Alpha Loop handle 100 watts on 10-40M?
How did we accomplish 100W power levels on 10-40M? We perfected each component which enables the antenna system to handle 100 Watts PEP SSB on 10-40 Meters. NOTE – Maximum PEP SSB on 80M is 20W.
****How is the Alpha Loop able to use 6M VHF UHF?
Our engineers designed resonance on 420-450MHz and 144-148MHz plus 50-54MHz with an add-on element.
SIGNAL PATTERNS
Green = 40 meters, Blue = 20 meters, Red = 10 meters
Vert. Elevation Pattern
Azimuth Elevation Pattern
Options
A) Optional SWR Sounder~
Place the SWR Sounder near any magnetic loop antenna and listen for the loudest beep as you tune for the lowest SWR.
B) **Optional VHF/UHF/6 Meter add-on element
Optional add-on element to enable 100W Magnetic Loop Antennas to support additional VHF & UHF plus 6 Meters, 2 Meters, and 440 MHz.
- Gain on 6M = 1.6dBd, VHF = 4.5dBd, and UHF = 7.2dBd
Installation and Tuning the VHF/UHF/6 Meter add-on element
Analysis (6M, 2M, 440MHz)
6 Meters (Click for full-size image)
2 Meters (Click for full-size image)
440MHz (Click for full-size image)
Alpha Antenna has two different Magnetic Loop antennas. To make your decision easier, here are the differences and similarities between this Model 100W and the EmComm MagLoop antenna.
| Model 100W | EmComm Loop | |
| HF | 10-40M and optionally VHF UHF 6M or 60/80M | VHF UHF & 15-40M and optionally 6-12M |
| VHF UHF | Optional | Included |
| Power | 100W PEP SSB | 100W PEP SSB |
| Feedline | Not included | Included |
| Connection | SO-239 | BNC Male |
| IP Rating | IP-53 | IP-53 |
| Stored Size | 6″ x 15″ x 16″ | 4″ x 13″ x 16″ |
| Weight | 2.5 lbs (without the 4lb tripod) | 1.5 lbs |
| Tripod | Additional Size/Weight | Built-in |
| Environmental limits | -15 to 130 degrees F | -15 to 130 degrees F |
Read more about the differences here:
Differences and Similarities: Model 100W and EmComm MagLoop
We listen!
Specifications, prices, and descriptions are subject to change without notice.
Reviews
| 5 star | 100% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Easy set up! Good quality.
Have not really had the opportunity to test out your antenna . Some important mounting hardware was missing. They sent this on to me a week later. I just got a tripod I could use to set it up . We have had some bad weather here and I work nights for SSP program per Trump team . As you know this is part of operation hammer . I work with communications here as well .
I will be using a Icom 705 , 7300 , Ziegu x6100 , x6200 and G90 for testing out your antenna as soon as the opportunity arises. I have your Al 705 antenna and a chameleon mag loop with all the accessories. My radios have all the mars modifications for use on military channels we will follow through as the opportunity arises
A very well built System. Came with everything needed.