Some modified units are reportedly used on the 80m band, though this requires specific hardware adjustments. 630m Band:
: Adjust VR6 to modify the loudness of the alarm test tone.
The TKM-707 is a robust, high-performance radio. The most useful mods are frequency expansion (with caution) and adding a data interface. High-power mods are strongly discouraged. For amateur use, consider an external antenna tuner and band-pass filters before performing TX range modifications.
One of the most common complaints regarding the TKM-707 is its aggressive squelch behavior. Commercial radios are designed to be silent until a very strong signal arrives. For amateur use, where we often listen to weaker signals or marginal propagation, the stock squelch can be too tight, causing the beginning of transmissions to be cut off.
Some modified units are reportedly used on the 80m band, though this requires specific hardware adjustments. 630m Band:
: Adjust VR6 to modify the loudness of the alarm test tone.
The TKM-707 is a robust, high-performance radio. The most useful mods are frequency expansion (with caution) and adding a data interface. High-power mods are strongly discouraged. For amateur use, consider an external antenna tuner and band-pass filters before performing TX range modifications.
One of the most common complaints regarding the TKM-707 is its aggressive squelch behavior. Commercial radios are designed to be silent until a very strong signal arrives. For amateur use, where we often listen to weaker signals or marginal propagation, the stock squelch can be too tight, causing the beginning of transmissions to be cut off.