The GPS-9700 is the first original external signal source that was developed by VK5EME and VK5WA in March 2019 for the Icom IC-9700 Transceiver to stabilize frequency when using narrow band weak signal modes. This Product is Built to Order and can take up to 10 days to ship.

The GPS-9700 can be used with or without an external 10MHz reference input to make a IC-9700 frequency stable to less than 1Hz on all weak signal modes including on the 23cm band. For high frequency accuracy especially when using Transverters for the high microwave bands, it is suggested that the GPS-9700 is locked to a high quality external GPS derived 10MHz frequency reference. The design incorporates a 0.28ppm low phase noise 49.152MHz Voltage Controlled Temperature Controlled Crystal Oscillator ( VCTCXO ) reference which is amplified, and filtered to produce a very clean RF output. The signal is then injected into the IC-9700’s internal 49.152MHz frequency reference using a small coupler PC board to mode lock the frequency.

The picture shows a fully constructed module in a Hammond enclosure.  The coupler board and cable are included.

Due to the complexity with construction, this product is available as a built product only.