RDS/RBDS "Mini Encoder"

Share on Facebook Share on Twitter


Inovonics’ 701 “Mini Encoder” is the quick and inexpensive way to have an RDS/RBDS presence. The non-volatile memory is easily programmed with any PC using the supplied software, and then the unit may be installed at the transmitter site. Though it is not capable of ‘dynamic’ messaging such as song titles, it will identify your station by format, display your station’s “street name,” and continuously transmit any station promo or advertising message to your listeners.


  • Entry-level RDS/RBDS "Mini Encoder"

  • Encodes station name, format ID, radio text and more

  • Easily programmed with any PC



Standards Supported

European CENELEC and United States NRSC

RDS Applications Supported

  • PS (Program Service Name) - Station identification actually displayed on the radio’s faceplate. This can be station call letters or the station “street name,” such as “LIVE 95.”

  • PI (Program Identification) - Every station is identified with a unique numerical code. The code may be entered manually, or automatically calculated by Encoder software from station call letters. This serves as the station’s “digital address.”

  • PTY (Program Type) - This flag identifies the station format to automate a listener’s search for a favorite format or a specific program.

  • AF (Alternative Frequency List) - The broadcaster may enter the frequencies of as many as 7 translators or other sources with programming identical to the main channel. The better RDS radios automatically retune to the strongest signal source without interruption.

  • RT (Radiotext) - A 32-character block of plain text for display on the radio front panel at the listener’s option. This is useful for station promos, advertising, contests, Web addresses or phone numbers. RT information may be changed each time the Encoder is reprogrammed, but the Model 701 is not intended for “dynamic” data such as song titles or other information that must be updated continuously.

  • M/S (Music/Speech Switch) - This identifies the transmission as a mixed music program or a speech-only transmission.

  • DI (Decoder Identification) - Indicates whether the transmission is monaural or one of several binaural/stereo options.

RDS Output

Unbalanced BNC connector; output level adjustable between zero and 1V p-p.

MPX Sample Input

Unbalanced, 30k-ohm bridging BNC connector; requires a composite/MPX signal from the stereo generator at a level between 0.5V p-p and 5.0V p-p.

Programming Port

DB-25 parallel data port for direct connection to the LPT (printer) port of any IBM-compatible computer. Programming software is supplied.

Power Requirement

12VAC at 500mA. An “inline” power supply matching the destination AC mains voltage is provided.

Size and Weight

2”H x 6”W x 8”D; 4 lbs.