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if the audio processing (compression) within the radio is set higher than
about 15%.
Q. Can the HF3 be used with Digital radios like DSTAR/Fusion?
A. Yes, it has been used with radios like the ID880 and it works perfectly.
Very complimentary audio reports have been received.
Q. What is considered the best placement for the electret
microphone?
A. As close as possible to your mouth – typically within 30cm – for example
mounted above the driver's door, on the sun visor, in the roof headlining
– anywhere that gets the microphone as close to your mouth as possible.
Q. My FM radio's transmit audio is soft – will the HF3 improve it?
A. Possibly. In principle, it's best to get your FM radio set up correctly first
with the standard microphone – making sure that radio's FM deviation
and internal mic gain are correctly adjusted first (the HF3 will NOT correct
an under deviating FM signal – that MUST be set within the radio).
However, you will have much wider control over microphone gain and
hence how "loud" your signal sounds on a correctly set FM rig. Further,
you'll be able to compensate for the often-poor sounding audio that
some of the 'standard' supplied radio mics exhibit. For example, users of
the IC7000 will be delighted with the improved top end crispness and
tailored low frequency roll-off that can be achieved with the HF3 after
proper setup.
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