H103M IP67 Speaker Mic for Ailunce HD1

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SKU: J9131G

Regular price $21.99

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  1. IP67 waterproof.
  2. High quality louder speaker and  microphone units provide clear audio communication.
  3. Ergonomics design,feel more  comfortable.
  4. Sturdy plastic 360 rotating  clip.
  5. Suitable for: HD1, RT82, RT29,  RT87

Package includes:

1  x H103M IP67 Speaker Microphone

1 reviews

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PTT Jitter Noise

When H103M is used with RT82, the radio transmits a clicking noise every time the PTT is released. The clicking sound is really annoying. Especially if the receiving is using earphones. :( Blank spaces on the H103M's PCB near the PTT switch indicates that "jitter filtering" -circuit was part of the design, but for some reason the components never made it into the H103M production model. A cheap 100nF capacitor + a Pull-Up resistor could easily solve the problem. Why did Ailunce / Retevis leave theese components out in the first place?

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