ac.3. Transmit Improvements
The transmitter audio quality can be improved by changing the value of coupling
capacitor C11 on the modulator board from .001 μfd to .01 μfd (see Figure 15.
Modulator Circuit Board on page 86). This will increase the low frequency response and
give the transmit audio a little more “body”.
If 10KΩ resistor R202 is present between the I.F. circuit board (L101 pin 4) and the
bandpass circuit board (V5 pin 2), remove and replace it with a piece of insulated hook
up wire (Figure 3). This will increase drive to the 1st transmit mixer. This change is
already incorporated in later model HW-101s.
Modifications Page 88
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