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Current Updates and Alerts

Oct 12, 2015

For power ratings and antenna installation details, please check the link “ High Performance Limited Space Antennas, etc.” on the left side of the home page. You will find power ratings and installation details there.

May 10, 2015

Check out the new Model TLM Tower Leg Grounding Mount. Details and photo on the link on the left under the Surge Protectors title. Also, new photo on the home page. This adds further capability to install up to 4 ATT/TT3G50 series surge protectors right on the tower leg at the base of the tower. More grounding options for the safety of your antenna system.

December 15, 2014

Based on customer comments on tuning problems on antennas, we need to direct your attention again to the posting on this link dated 3-17-2014. The problems typically stem from installation sites that are less than ideal and don’t allow proper tuning and SWR results. All antennas, particularly HF antennas with their longer wavelengths, can couple to nearby objects if the installation site is not clear. In these cases the installation site is the culprit, not the antenna. Please check the 3-17-14 posting again just below here. It contains very useful information.

July 28, 2014

Check out Brad, W3BRF, comments and details in the "Customer Comments on Alpha Delta Antennas" section. He has attained DXCC and over 400 DX contacts using his DX-EE attic mounted antenna with just 4 watts CW. He says "Alpha Delta Rules the Ionosphere". Wow, what performance!

March 17, 2014

It's antenna time again, so just a couple of reminders for proper installation of HF antennas.

HF antennas, whether dipoles, inverted-Vs or slopers, MUST be installed "in the clear" at least 20 feet from roof tops, gutters or other metal objects and at the proper height above ground.

The "included angle" of inverted-V types, across the center insulator from one wire to the other, MUST be 90 degrees or wider for proper tuning and lowest SWR. Sharp angles will de-tune the antenna and cause poor performance.

Quarter wave slopers MUST be put on a metal tower or metal support with an HF size beam on top to serve as a "capacity hat" for proper tuning and operation. This is not a requirement for half wave dipoles.

Attic installations have their own set of limitations due to attic wiring, HVAC ducting, outside metal gutters and other objects and overall height above ground. Tuning can be a problem and a wide range (10:1) antenna tuner MUST be employed. Power should be limited to 100 watts or less to minimize interference to home electronics, phones, alarms or other such devices. Some attic installations work well and some don't. Each situation is unique.

To review the "Alerts" from 2013, Click Here.