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
Hello to everybody, During Christmas holidays we have noticed increased delays in kits delivery. This is not a problem with Bulgarian post but an international issue due to overload. The post delivery time might reach more than a month! The … Continued
The new batch of the Active Antenna Amplifiers is avaialble in stock. The new board revision is marked as v.6.01. There are no differences in specifications compared to the previous batch and the model is AAA-1C. Every kit ordered after … Continued
The AAA-1 can be used to measure the field intensity. Calibrating the loop needs very specific measurement equipment which is an expensive or time consuming task. Fortunately the AAA-1 loop mode has very predictable antenna factor AF which can be … Continued
