News

Added on 14 July 2020 USA is now available for orders. Chavdar Added on 7 July 2020 We must inform you that Bulgarian Post again has temporally stopped delivery to some countries including USA. It is difficult for us to … Continued

Hi, We have kits in stock but our post office does not accept registered parcels (which are delivered by air) and also EMS packages. I can not say when this limitation will be terminated. The main problem is that there … Continued

Dear Customers, For the moment we can not guarantee the delivery of parcels due to known circumstances. We have AAA-1 kits in stock but for the above reason the selling are closed. Check at the site when they will be … Continued

A combination of a small magnetic loop and small electrical dipole or ground plane (GP), both vertically placed in a single point is widely used as a simple direction finding antenna. How to build a wideband version with active small … Continued

An Application note is added : http://active-antenna.eu/application-notes/filters-to-reject-strong-input-signals/ The AAA-1 amplifier has a very good dynamic range – it is higher than the most RF preamplifiers used in the best transceivers. But it is wideband and there are no filters at … Continued

We must inform our customers that we will not send parcels during Christmas and New Year holidays. The last parcels were sent on 18 Dec 2018. The next date for dispatch will be on 3-d of Jan 2019. We wish … Continued

There is a new article “Impact of the Height Above the Ground to the Receiving Performance of a Small Wideband Magnetic Loop” Two identical loops are placed at 0.2m and 3m above the ground and the receiving performance is compared … Continued

Hello all, There is a new version of Control Board v.1.10. Now it has two different limiters which limit the output voltage either 4 V pp or 2 V pp in order to protect the receiver front end. Read http://active-antenna.eu/application-notes/receiver-front-end-protection/. … Continued

An application note “Receiver Front End Protection When Used with Active Antenna AAA-1″ AAA-1 active antenna has very high dynamic range and its 1 dB compression point is at +20 dBm. At the output a heavy clipped signal can reach … Continued

We must inform our customers that we will not send parcels during Christmas and New Year holidays. The last parcels were sent on 19 Dec 2017. The next date for dispatch will be on 3-d of Jan 2018. We wish … Continued