Home > JRC > Communications receiver > JRC Nrd-535 Hf Modification Modification Manual

JRC Nrd-535 Hf Modification Modification Manual

Add to Favourites
    Download as PDF

    View the JRC Nrd-535 Hf Modification Modification Manual for free. All the JRC manuals and user’s guides are available for free view without any registration. You can also download the manual as PDF to your computer.

    Overview View all the pages Comments
    Page 1 Modification of JRC NRD-535 HF Receiver for the reception of DRM signals V1.02 - 11-April-2003
    Page 2 Summary A JRC NRD-535 HF Receiver has been modified to make DRM reception possible with the DRM decoding software available athttp://www.drmrx.org/ and athttp://www.tu- darmstadt.de/fb/et/uet/fguet/mitarbeiter/vf/DRM/DRM.html The 455 kHz Intermediate Frequency (IF) available within the NRD-535 is mixed down to 12 kHz with the LC-mixer available at: http://home.t-online.de/home/sat-service/sat/DRM/DRM.htm The necessary power to supply the LC-mixer can also be derived within the NRD-535. The resulting 12...
    Page 3 Disclaimer Attention! This modification is done at your own risk! The author is not responsible for any damage to your receiver or anything else. You may also loose vendor warranty and liability.
    Page 4 Modfication The LC-mixer circuitboard is fixed with double sided tape on one of the NRD-535 cards called “CFH-36A IF filter”. The blockdiagram of this IF filter is given in Annex I. Ub The power to supply the LC-mixer is available on pin 1 of connector P30 (10.8V) on this card. The connection between P30-1 and inductor L8 is used. (red wire on photo) ZF There are various ways to derive the 455 kHz IF within the NRD-535. Method 1: In our case the “CFH-36A IF filter” board has an additional filter on the...
    Start reading JRC Nrd-535 Hf Modification Modification Manual
    All JRC manuals