Jerry
I misrepresented the sound of the 701 mic with my Scout. It's no more than
slightly bassy. However I've listened to myself and the mic does not have
much upper mid range punch to it.(My Tram mic is a bit better). At S9 the
701 hand mic gives a nice pleasant ragchew sound but at S3 and below the
clarity of that easy pleasant sound gets lost in QRM & QRN and I get asked
for fills. It is not unusual for my signal to be just below the noise level
so a little extra upper mid range might improve the intelligibility. I
also love to listen to nice AM like full range ssb audio so I'm thinking
the Heil goldline full range element would also be nice to have on the S9
plus days. I'd like to start with the HC 4 & HC5 dual mic and maybe add the
goldline element later . An audio equalizer would be fun but would not fit
into the car ;-)
I'm assuming that this type of flexible mid range audio shaping would be
difficult to achieve by simple replacement of a couple of capacitors.
However, I don't know . I'm leaning toward getting the Heil elements.
tnx & 73
Bob, KB1CIW
At 08:45 AM 8/14/02 -0500, Dr. Gerald N. Johnson, electrical engineer wrote:
>There are several ways to cure microphone "bassiness." The simplest is
>to back away from the microphone. That enhanced bassiness is why pop
>singers swallow their hand microphone. Back off and it gets thinner.
>
>You could add a series capacitor to reduce the output at low frequency,
>e.g. make a coupling capacitor or two smaller in the microphone or the
>radio. I have a Yaesu microphone that does that with a switch on the
>back.
>
>You could realign the radio with the BFO further from the edge of the
>transmit filter, that would reduce the bass.
>
>You could reduce the bassiness in your voice by speaking in falsetto
>instead of those resounding announcer bass tones....
>
>73, Jerry, K0CQ
>
>--
>Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
>Reproduction by permission only.
>
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