The Heil PR 28 Pro Mic is a new and very compact dynamic microphone that was initially designed to be used with snare drums, toms, bongos, and other percussion instruments. As such, it has two important characteristics: (A) a wide frequency response and (B) very quick transient response time, so as to reproduce the quick attack and decay of the drum beats. These very characteristics make the PR 28 ideal, also for amateur radio use.
The PR 28 has a low-frequency roll-off at 55 Hz, and a gradual rise to +3 dB at 3500 Hz, and for ham shack installations its 35 dB or rear rejection is particularly noteworthy. That excellent specification helps keep other radios, computer and amplifier fans, and other noises from going out over the air.
On the air with a modern DSP-based rig like the Icom IC-7800, Yaesu FT-2000, or Kenwood TS-2000, the PR 28 has wonderfully rich-sounding audio with excellent clarity (that's the quick response time showing itself). The PR 28 has a very articulate mid-range, which makes it ideal for voice reproduction. It really "barks" on the air!
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