RB7501 DDS VFO (c)

(For Use With The Drake TR-7 / R7 In Split Or Tandem Modes Of Operation)

The RB7501 DDS VFO(c) is a high stability oscillator that replaces the Drake TR-7/R-7 PTO. Other models are currently under development. The RB7501 DDS VFO(c) uses a Zilog EZ80F91 processor running at 50 MHz and an Analog Devices AD9851 DDS IC. The unit comes with a universal power adaptor (100 to 240 VAC, 47-63 Hz) and cable for the Drake TR-7 and R-7. For Frequently Asked Questions, click here. This unit also features:



The RB7501 DDS VFO(c) displays calculated TR-7/R-7 frequency to a resolution of 1 Hz. It does not actually measure the TR-7/R-7 transmit / receive frequency but calculates it based on the DDS frequency (assuming that the other oscillators in the radio are correct). If a significant difference exists between the RB7501 DDS VFO(c) frequency and that displayed on the radio, the radio may require realignment.

Price $500 U.S.