K&M Burkhard Reuter

German

International

The measurement and communications receiver RDR55 can be flexible configured for many purposes in the range of 0 Hz up to VHF. Its big display and the up-to-date touch screen control allow for fast operation of the device.

General Information

The device consists of a basic unit (Mainframe RMF22) with bus board and pluggable modules. The modules can be back-mounted in 9 slots. The front of the RDR55 is pre-configured (single front panel). The 7” (178 mm) wide-screen display contains a touch panel for easy control of the device. The smooth and non-locking optical encoder allows for a quick change of the settings.

All back-mounted modules of the RMF system can be installed. Because of the greater height of the casing opposite to the RDR54, the modules possess higher front panels.

Casing (AI profiles / milled side elements) and front modules are available in AI grey or black, back modules are always anodised in aluminium. Customer specific modules for special tasks can be manufactured.

The RMF system has a proprietary operating system (real-time multi-task / multi processor) at its disposal, for cross-linking the modules across various data interfaces. It implements the functionality of a digital receiver with very fast graphic representation (spectrum, operation) into the RDR55. With the corresponding modules, a transceiver expansion is possible.

You can find out more about the RMF 22 system here: RMF-Bus(german).

The RDR55 is currently available as RDR55E1. Delivery takes, depending on equipment, two to several weeks.

Specifications

11.42 in x 9.65 in x 5.91 in (290 mm x 245 mm x 150 mm) (length / width / height, tip-up feets folded)

Weight depending on equipment up to approx. 6 kg

Aluminum extruded section for top and bottom cover, AI 0.2 inch (5 mm) thick milled side elements

Special conductive surface finish (Chromium IV, RoHS-compliant)

Powder coated external surfaces, anodised front panels

Bus board with 11 slots (2 in the front, 9 in the back)

Plug connectors: 68-pin (62 used) “SCSI” standard 0.05 inch (1.27 mm) grid shielded

Board size of the back-mounted modules 0.183 x 0.124 square inch (118 x 80 mm²) (RDR54 compatible),
0.183 x 0.163 square inch (118 x 105 mm²) (only RDR55)

Visible front panel height 4.92 inch (125 mm)

Rubberized tip-up feets, approx. 1.19 inch (30 mm) lift-able in the front

The other specifications for the RDR55 are the result of the used modules and the software. Please consult the current documentation.

Modules

The RDR55E can be outfitted with various modules. The standard device consists of the following modules (in their respective current versions):

Front Graphics Controller FGC2 (not exchangeable)

Front Digital to Analog Converter FDA21 (not exchangeable)

Rear Power Supply RPS35 (switch mode 90 ... 240 V)

Rear Digital Receiver RDR35

Rear Analog to Digital Converter RAD17E

Other often used modules are:

Rear Analog to Digital Converter RAD17EF with VHF range instead of 17E

Rear Analog to Digital Converter RAD18EF with optimized SW / VHF range instead of 17EF

Rear Power Amplifier RPA5 for expanding to a 5 W SW amateur radio QRP transceiver

Rear Digital to Analog Converter RDA31D for expanding to a measurement generator / SDR transceiver

Rear Digital to Analog Converter RDA31B for high quality NF output of time-based demodulators (particularly stereo FM)

A particular “module” is the upgrade kit for conversion of a RDR54 to a RDR55. For that, the back mounted modules of the RDR54D, the bus board, the encoder and the front module FDA20F remain in use. The modules receive new front panels with appropriate height (not FDA20F, is permanently installed). They are fitted in the RDR55 casing and, after a fundamental software upgrade (only possible with programming device in our company), result in a complete RDR55. The upgrade kit contains the following parts:

Casing with 5,32 inch (135 mm) overall height, black (AI grey on request)

Front panel complete with display, buttons and speaker, black (AI grey anodised on request)

Graphics card FGC2 with touch controller

Rotary knob RDR50

If the existing RDR54 possesses an older audio module (prior to version F), a current module is needed additionally. The rotary encoder of the RDR54 can always be reused, if a magnetic or optical version. Mechanical locking versions (till RDR54 version C) cant be reused and a new rotary encoder is needed.

Software

Documentation