Here you can find current and archived information from our company regarding our products, services and events.

  • 2024

    20.12.2024

    Current production status RSR200.

    The first RSR200B devices were supposed to be delivered this year (many thanks for your great interest and all those pre-orders!). Unfortunately, we are suffering from delays in part delivery and production. Because of that, no series devices will be manufactured this year.

    We expect to start production from 07.01.2025. All pre-orderers will then receive a binding order confirmation with a realistic delivery date.

    02.11.2024

    RSR200: Blackbox receiver (“SDR”) for operation with PC software (like HDSDR...).

    The RSR200 is a direct digitizing receiver with two 16 bit / 200 MHz ADC. The two ADCs can independently process the signals from two RF inputs 0 - 71 MHz and forward them to one or two different PCs via two interfaces. A 70 - 250 MHz VHF input is also available. Its signal can be processed by channel 1 alone or by both channels in parallel.

    RSR200R1

    Various common signal processing methods are available for the RF inputs:

    • Parallel connection of both ADCs to HF1 or VHF: Increases  the resolution to 17 bits.
    • Serial connection of both ADCs to HF1 or VHF: Doubling of the sampling rate to up to 400 MHz.
    • Diversity operation of HF1 and HF2: Addition of the signals with adjustable amplitude and phase (functions like a “QRM eliminator” etc.).
    • Each input has an internal switching option for the remote supply of preamplifiers or active antennas (HF1 and VHF common supply).
      Our RLA4, RFA2 and RAP1 can be remote-fed and remote-controlled from the PC.

    Both ADCs are supplied by a shared clock source. The clock generator is adjustable from 100 - 200 MHz and can be corrected to an accuracy of up to 1 Hz by an integrated GPS receiver.

    The digital output signals of the channels can be output via 2 interfaces:

    • 1000 MBit LAN with SFP slot: Use of SFP modules for connecting standard patch cables or fiber optic cables.
    • 5000 MBit USB 3.0 for USB-C cable (fully occupied, cable can be plugged in in any direction).
    RSR200F1

    The two interfaces can be operated independently of each other (one channel connected to each interface), or both can output the signal of a joint signal processing of both channels. The following maximum data rates, resolutions and bandwidths can be realized:

    • LAN (TCP/IP or UDP/IP): 25 MS/s at 16 bit I/Q resolution (about 21 MHz BW), 12.5 MS/s at 24 Bit (about 10.5 MHz BW).
    • USB: 100 MS/s at 16 bit I/Q resolution (about 84 MHz BW), 50 MS/s at 24 bit (about 42 MHz BW).

    The first firmware version will support a minimum possible data rate of 6.25 MS/s. This rate is too high for a normal Internet connection. The firmware also has no software for direct connection to the Internet (DHCP / DNS server, web host, etc.). The RSR200 is therefore designed with a fixed IP address for direct connection to a PC. If the data is to be sent into the Internet, a suitable SDR program is required to reduce the data rate and to handle the Internet connection. In a later version, both of these features will also be integrated directly into the RSR200.

    The USB port has a Power Delivery controller. This allows the RSR200 to be supplied with power from PD-capable USB ports (12 V / max. 12 W).

    Version B of the RSR200 is in final testing as a prototype. The firmware is still under development. An Ext-IO.DLL is supplied for connection to the PC software. A first small series is planned for December 2024. The price is expected to be just under €1000 when the device is launched. Preliminary inquiries / orders are welcome!

    01.07.2024

    New firmware for the RDR51 “Pocket” and RDR52.

    New firmware versions for the “Pocket” and the RDR52 are available. Some minor bugs were fixed and additional features were implemented at the request of many users.

    Many thanks to everyone who ordered the "Ham Radio" trade fair’s special edition of the RDR52! The devices will be dispatched in the next few days. Of course the new firmware is already installed.

    28.05.2024

    Special Ham Radio fair offer for receiver RDR52

    Unfortunately, we cannot participate as an exhibitor at the Ham Radio in Friedrichshafen this year. Nevertheless, we would like to make a special offer for the trade fair period to those interested in our products:

    • RDR52:  Black housing, 0 - 71 MHz + module 2 with 87 - 154 MHz, without DAB
    • Special trade fair price RDR52S1 14 bit: 944 €
    • Special trade fair price RDR52S2 16 bit: 999 €

    The devices can be ordered directly from us by email during the trade fair from June 28th, 2024 to June 30th, 2024. Orders received outside of this time cannot be considered! Only while stocks last! Shipping will take place from July 1st, 2024 (against advance payment or cash on delivery).

    RDR52sw2

    Ferrite antenna RFA updated to version 2

    The ferrite antenna RFA1 has been revised and is now available in version 2 (for now, only variant B for outdoor installation). The following changes have been made:

    • Significantly more ferrite material (95 g instead of 55 g).
    • Ferrite type 43 to achieve higher quality in the LW and MW range.
    • Very low-attenuation electronic switches for tuning (capacitor switching, without varactors).
    • Optimization of the amplifier for extremely low intrinsic noise (double SFET with 2x 40mS).
    • Gain maximization of the ferrite rod coil for the LW and MW range (limitation to 137 kHz - 2.0 MHz, omission of SW range).

    Thanks to these adjustments, the RFA2 achieves a significantly better reception performance (less intrinsic noise, higher output level) compared to the RFA1. Reception is comparable with the RLA4G loop antenna and similar designs. However, the RFA2 is considerably smaller and lighter and even less sensitive to QRM. For users without the possibility of setting up "annoying" (easily visible) external antennas, the RFA2 offers a way to avoid the domestic interference fog, at least in the LW and MW range.

    The devices will be available from June 2024. Please also note our new price list valid from May 28, 2024.

    13.02.2024

    New variants of receiver RDR52!

    So far, the RDR52 has been manufactured in version "C": 16-bit ADC with a clock speed of around 84 MHz. The circuitry of the device and the complete signal processing chain have now been converted to twice the clock frequency of around 167 MHz. This results in an expansion of the reception range, especially the elimination of the previous gaps in the range of 30 - 50 MHz and 110 - 136 MHz. This means that, at the request of many users, the aviation radio range can now also be received completely.

    The new devices are offered in two basic versions:

    • RDR52B1: 14 Bit ADC, 0 - 71 MHz.
    • RDR52D1: 16 Bit ADC, 0 - 71 MHz.

    The available expansion modules are also adapted in the frequency range:

    • Module 2: Receiver Unit 87 - 154 MHz.
    • Module 4: Exciter 10 mW  0,1 - 154 MHz.

    The devices are available immediately.

    Please also note our new price list from 13.02.2024.

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