The PTRX-9700 interface is a panadapter for the Icom IC-9700. The board picks up the IF signal of the transceiver and forwards it buffered and slightly amplified to the outside. Now, for example, an SDR receiver can be used to display the signal.
The advantage of this solution is the clean decoupling of the IF from the transceiver. In this way, the signal is picked up without loss and no feedback is possible. The IF signal can be used with an inexpensive SDR receiver with the appropriate software. This gives a very clear spectrum and waterfall diagram of the HF signal, the resolution and display of which can be set much more accurately and better by the software than on the display of the radio itself.
Only existing housing features such as holes, sockets, etc. are used for installation. This makes installation easy and without much prior knowledge without any problems. The existing "REF IN" socket of the IC-9700 is used for coupling out the IF signal. In order to use the socket at the same time for feeding in a reference clock signal, a suitable crossover (Reference Injector Board) is supplied. Therefore, no function of the transceiver is lost. All necessary parts and cables are included in the delivery. Installation takes a maximum of 30 minutes. The PTRX-9700 can be removed from the IC-9700 without leaving any residues or permanent marks. All functions of the radio are retained and the HF characteristics are not affected.