Baixar Cd Musicas Anos 70 Internacional. I am seriously looking into the Elektor SDR in order to receive DRM broadcasts and have a question involving the use of external antennas with the receiver. Corel License Validation Service V2 Coupon. Given that there is no obvious antenna connector on the radio I am wondering if its possible to wire up an external antenna for the receiver to improve reception since I am in a rural area and AM broadcast is fairly weak and also because of the existing band conditions on shortwave. An active external Antenna like that of PA0RDT's active miniwhip antenna (please Google for the link of a PDF file) would help you. BUT you have to take protective action against Lightening activity damaging your entire RIG. If you do connect an active antenna, such as the PA0RDT, remember to block the DC supply voltage to the antenna from the Elektor, as there is a 2. Compaq Nx9010 Wifi Drivers. 2 uH inductor to ground across the antenna input (smoke guaranteed).

ELEKTOR SDR RELOADED SDR SHIELD FOR THE ARDUINO A Software Defined Radio is a universal tool in RF technology circles, one that can also be put to use for making measurements. The characteristics of the receiver are defined in software, which now gives us the opportunity to use an Arduino.

I'm using a slightly modified PA0RDT antenna both in Switzerland and here in Sweden at my temporary QTH although with another RX, and I didn't have time to test it much on the Elektor yet. As far as I recall at the moment, the active antenna was not the optimum solution, but the Elektor is new to me and I did not have time to make any tests in detail. Happy experimenting. Hallo, it is the left side of the picture.

Parallell to the input there is a choke, which reduces the inputs of lower frequencies. The software switches between the inputs 1, 2, 3 of the circuit-ic at this place. The first try: Connect a wire 5 m long on the input jack and turn it vertical besides Your home. This for first tries. Try to find a suitable grounding for the input.

Shorter wires have higher impedances. Because of that, You are able to experiment with a short wire of some meters. You will be astonished, how nice it works.

With some soldering, one is able to activate special inputs at the switching ic-circuit. You are able to connect some special antennas as an example a special ferrit-rod with a tuning capacity. Wolfgang Hartmann.

Thanks for the info, the link posted earlier pretty much answered my question as the Elektor photo did not show enough detail of the sides in the case of the board. This really does look like the ideal solution for me to receive DRM then and my existing sound card will work for decoding which was proven thanks to 12 KHz IF samples of DRM transmissions in Dream. Maybe for other modes also including C-QUAM AM stereo as there are transmissions being conducted still here in the US but the number of them seems to be shrinking. I tested that version already and its implementation of Motorola C-QUAM AM stereo seems like a software version of Sony's CX20111 decoder IC but with the platform motion reduction of the official Motorola MC13022 IC. This was with IF samples of France Bleu on 864 KHz from Paris France which is experimenting with the system. Its quite impressive from my observations and the decoding is 100% accurate compared to the same thing on a Sony SRF-42 which decodes the system in hardware using the Sony IC mentioned earlier but locked to the Motorola mode as it does Kahn/Hazeltine, Harris, and Magnavox stereo modes as well which are pretty much dead systems on anything but low power license free transmitters.

Also an amateur radio operator here in the US is experimenting with AM stereo in the Motorola mode on the 80 meter band so with a software defined radio it would be possible to listen to the stereo transmissions without a converter of some sort.