ABOUT THE PRODUCT
The Wellbrook Model ALA1530LN-2 and DX Engineering (Pixel/Inlogis) Model RF PRO-1B magnetic loops are both good amplified receive antennas. However, they are both expensive. Shipping the Wellbrook antenna from the UK to the US adds another $100.
The antenna version listed here includes a power inserter for use with receivers or with transceivers that have a separate receive antenna input. If your rig doesn’t have a receive antenna input, check out my antenna with a transmit/receive switch.
If you live in the shadow of one or more high-power AM broadcast transmitters, contact me about a special version just for you. Please reach out to me via CONTACT with any questions.
W6LVP amplified receive-only magnetic loop antenna (boy is that mouthful):
- The W6LVP mag loop is a complete receive antenna system delivering top-of-the-line performance to amateur radio operators and SWLs – particularly for those with space and/or budget limitations. It is a great complement to vertical or wire transmit antennas. You have a knob to turn up the power but don’t have one to turn up the received S/N.
- Ten foot circumference (approximately 1 meter diameter) loop. Small size yields a natural stealth for HOA challenges. The loop is rigid enough to maintain its shape but flexible for portable transport or attic installation.
- Includes a low-noise, broadband amplifier covering 2200 (135 kHz) through 10 meters (30 MHz) with no tuning or adjustment. Perfect match for continuous tuning SDR receivers. Great for contesters to quickly check all bands. Greater coverage is possible at reduced performance.
- Light-weight antenna structure fabricated from furniture-grade PVC yields a strong but very light antenna weighing only 2 pounds (not including power inserter or power adapter). Great for both portable/camping as well as fixed installations. Light weight and small size make for lower shipping cost – particularly compared to shipping from the UK.
- Directly compatible with a low-cost speaker tripod stand (not included) for portable operation.
- Compatible with light-duty rotator (recommended) for fixed operation. Loop can be rotated to null interference by up to 30 dB or enhance desired signals.
- Includes low-noise linear AC power adapter to generate clean 12 volts for the loop amplifier. Unlike the DX Engineering antenna which requires 24 VAC, power can be easily supplied by 12 volt batteries during portable operation. Reverse polarity and short circuit protection provided by automatically resettable fuse.
I have received many requests for suggestions on which type of coaxial cable to use to connect the loop to the power inserter or T/R switch. When connecting a transmitter to an antenna, cable loss is very important. For connecting a receiver to a receive antenna, common mode pickup on the coaxial cable shield can add unwanted signals and noise. RG-11 is probably best but is a bit more expensive and stiffer. Quad-shield RG-6, which is designed for cable and satellite TV, works nearly as well but is normally sold with F connectors. Either of these cables can be purchased from MPD Digital in custom lengths with male BNC connectors installed.