Why can I tune below 1kHz on the Lowe HF-225 with the SWL IR Remote?
The SWL IR Remote replaces the optional Lowe keypad (KPAD-1) and connects to the KEYPAD jack on the radio. This optional keypad allowed frequencies to be entered up to 5 digits in kHz format. A frequency of 5960kHz would be entered on the keypad as 0 5 9 6 0. There is no way to enter a frequency with any values below 1kHz. You could not enter 5960.100Hz. The SWL IR Remote does it?s own frequency and stepping work, and only feeds the resultant frequency to the radio using the keypad interface. Because the HF-225 cannot take digits below 1kHz, there is no way for the remote to tune below 1kHz. If you were to set a User Tuning Step of 100Hz, you would have to press the remote CH+/- key 10 times before the frequency of the HF-225 would actually change, either internally or on the display. The only way to tune below 1kHz is with the tuning knob.