This item was acquired from an electronics store who were downsizing their inventory. ICOM UA-4 VHF Radio Audio Amplifier Accessory for Hailer for IC-M127 -Used. Item comes as shown. Nothing else is included. Unit has NOT been power-on tested but has a 30 day return policy. *Free shipping to the contiguous 48 states of the US.

2023年11月1日 · Boat Marine VHF Radio 30W Audio Amplifier Accessory. Model Number:Audio Amplifier Accessory. This unit is in excellent physical condition and was removed from a boat that received a total electronics refit.See Photos.

Manufacturer: Icom Model Number: UA-4 Condition: Used Additional Notes: This 30-watt amplifier is designed to boost plug into the back of an IC-M127 VHF and

2023年11月9日 · UA4采用了双RT6863D运放芯片，实现全平衡放大。 3.5单端是137 mW@32Ω，4.4平衡输出则是达到227mW@32Ω，这推力在一众小尾巴产品里也算得上是第一梯队的了。

2025年3月20日 · Model:- UA-4 VHF. Kindly check all product images properly.

ua4是本小白购入的第一款小尾巴的产品，所以对优秀的同类产品的体验没有概念，只能拿手里唯一的前端ZX300A作为对比。 很长一段时间ZX300都被当做带4.4mm接口的dac用。

Icom,America,Land Mobile,Marine,Aviation,Amateur,Network,Systems

Item exactly as described and quick delivery. Accessory for Hailer ICOM-127. ICOM UA-4 Radio Audio Amplifier.

ua4官称的信噪比“高达”118dB，而dc04p是131dB，m1p是125dB，这差距可以说有十几倍了。 连一直被我们诟病力大声粗的4493都有125dB，9069 ess官方也有130，而ua4只做出来118，可见烂到了什么程度。

This item was acquired from an electronics store who were downsizing their inventory. ICOM UA-4 VHF Radio Audio Amplifier Accessory for Hailer for IC-M127 -Used. Item comes as shown. Nothing else is included. Unit has NOT been power-on tested. *Free shipping to the contiguous 48 states of the US.