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March 28, 2021

FT-890 with SDR panadapter

Our buffer interface named IFace can be used to add an SDR panadapter to the Yaesu FT-890.

The operations to be carried out are very simple, it is sufficient to obtain from its wiring diagram the information on the points where the IF signal has to be taken. This radio uses several mixers and we are interested in the first IF frequency (this makes it easier to operate the panadapter). The IF frequency chosen is 70.455 MHz and our SDR panadapter will be tuned to this. The following image shows the block diagram of the radio and where to get the IF signal.

The following image shows the portions of the schematic diagram of the IF UNIT where we can see the exact points where to sample the IF signal and the power supply.

We now proceed to identify the exact points on the printed circuit board where to take the IF signal to be sent to the IFace. The following images show the sampling point for the IF signal and for the power supply for the buffer interface.

The use of PTT signal is not required because RX and TX signals are separated.

In order to buy an IFace use the buttons below.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information, do not hesitate to write to us using the form below.
Have fun!

IC-7000 SDR by IK0AZG

Our friend Gianni IK0AZG has installed our IF buffer interface IFace on his Icom IC-7000 in order to equip his radio with an SDR panadapter. The following photos show some details of the installation, specifically how the buffer interface was shaped in order to be placed in the very little space available inside the radio (also for this reason the smaller and thinner IFace 2 was then designed).

In this image you can see the point where the IF signal is taken through the yellow wire.
In this image you can see the points where the power (positive red wire, negative black wire) and the IF signal (yellow wire) are taken.
In this image you can see the IFace buffer board suitably shaped to reduce the overall dimensions and correctly positioned and wired to the radio.
In this image you can see the output cable of the IF signal: it was chosen not to drill the rear panel of the radio and to use one of the openings on the back to pass the coaxial cable.

To view the complete IFace installation instructions in the Icom IC-7000 click here.

To purchase an IFace use one of the buttons below.

Thank you Gianni IK0AZG.

ATTENTION: Although the installation of IFace 2 is not difficult, it is done at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side effects, or anything else.