Firmware download:https://drive.google.com/drive/folders/1_GB26bcqH1VJ-S3skzg38d46CwsZmee7

Group: https://www.facebook.com/groups/6090995314269480

Note: Pressing the FN button 8 times can activate 30 meters and 15 meters

The upgrade of the third generation relative to the second generation is as follows:

1. New LPF filter combination with smaller harmonics.

2. Better gain consistency, no need to frequently adjust radio power.

3. Almost perfect thermal runaway management ensures stable operation even when the working temperature reaches 70 degrees Celsius.

4. Based on more comprehensive thermal runaway management, intermodulation distortion is now reduced and linearity is further improved.

5. Independent OLED display screen power supply, further reducing the interference of OLED screen charge pump on ADC.

6. Some minor optimizations, such as power fuses, fan control, temperature sensing, etc

Introduction:

△ 5W power intelligent portable shortwave frequency band power amplifier.

△ High speed automatic transmission and reception switching, with RF triggering, can automatically switch transmission and reception states even without PTT SEND;

△ High speed automatic switching of LPF filters, without the need to connect ACC control lines, can automatically switch corresponding LPFs. Four sets of 5th order LPFs cover the entire HAM dedicated short wave communication frequency range from 80 meters to 10 meters;

△ Power and standing wave display and protection ensure reliable equipment safety under poor antenna conditions and are not easily damaged;

△ Wide voltage range, voltage display and protection, more convenient for outdoor use of lithium battery power supply;

△ Temperature display, temperature protection, intelligent fan cooling;

△ Half insertion mode function, which can have half insertion function even without connecting PTT SEND;

△ Supports ICOM, YAESU, and XIEGU band switching protocols (requires ACC control line connection).

Parameters:

Frequency range: 3.5MHz-30MHz

Input power: 1-5W (maximum 7W)

Output power: 50W ± 1.5dB @ 13.8V

Output impedance: 50 Ω

Supply voltage: 10V-17.5V; 13.8V (typical value) (note: lower voltage will provide lower power output)

Current consumption: ≤ 10A

Working temperature: ≤ 55℃

Dimensions: 88 * 38 * 143 (excluding protrusions); 88 * 38 * 160 (including protrusions)

Weight: ≈ 0.65kg

Standard package list : One power amplifier host and one power cord.

Package includeds:

1 x PA50+ power amplifier

1 x power cord