PTX-LCD series exciter adopts 19-inch standard chassis package, frequency adjustment is flexible and convenient. Its frequency range covers 87.5~108MHz, which can be set in 10kHz steps. If users need it, it can be customized for other bands. According to its maximum output power, the PTX-LCD series can be divided into three models: PTX30-LCD for 30W, PTX60-LCD for 60W and PTX100-LCD for 100W, with a rated load of 50Ω. The output power can be adjusted in the range of 0 to the rated value. The current device configuration is the PTX30-LCD for 30W. The PTX-LCD can be preset as a stereo or mono/MPX type, and the mono/MPX type can be used for broadcasting mono signals or stereo signals processed by external encoders.
The PTX LCD series exciter is a 19‑inch rack‑mount unit used in broadcast systems. It offers flexible frequency tuning from 87.5 MHz to 108 MHz, modular construction with separate power, audio, encoding and VCO boards, and a user interface consisting of an LCD screen and a rotary encoder.
The manual provides a detailed description of the device, step‑by‑step operating instructions, module adjustment procedures, routine maintenance guidelines, and troubleshooting methods for common issues such as a blank LCD, low audio level, overload, and PLL unlock. This manual is written in Chinese.
| Panel size | 483 mm × 88 mm (19" × 3.5", 2 U) |
|---|---|
| Frequency range | 87.5 MHz ~ 108 MHz |
| Output power (PTX30LCD) | 0 ~ 30 W adjustable |
| Power consumption (PTX30LCD) | 120 VA |
| Operating temperature | -10 °C ~ 50 °C |
Adjust the LCD contrast using a screwdriver inserted into the small hole near the front panel cover.