3
Expert Electronics
2018
1. Precautions
To prevent damage to the transceiver, please read these operating rules carefully before
attempting to operate the transceiver.
•
Carefully read this manual first, otherwise connecting and operating the SunSDR2 QRP
could lead to fatal errors;
•
Visually inspect the SunSDR2 QRP transceiver for the absence of mechanic damages
before connecting it to PC;
•
If the SunSDR2 QRP was stored in abnormal climatic conditions, it is recommended to
keep it in normal operating temperatures for at least 2 hours before switching on;
•
Before connecting the SunSDR2 QRP to the AC power line, ensure it is grounded. Never
use the SunSDR2 QRP transceiver without grounding;
•
It is forbidden to connect the SunSDR2 QRP to PC with the voltage presence on it or in
the switched condition;
•
It is forbidden to use the power supply with the voltage more than +15 V.
Remember! The transceiver's power is the voltage direct current!
•
Before connecting the external devices to connector EXT CTRL read the Manual, learn
tables and diagrams of connecting the external devices;
•
DO NOT connect a VGA monitor to COM or CTRL port, you will damage the transceiver!
•
Remember! The transistor switches have limitations of supply voltage and current, going
through them. The power swap is forbidden;
•
DO NOT use the SunSDR2 QRP
in temperatures lower than 0ºC (32ºF) and higher than
+75ºC (167ºF);
•
It is forbidden to use and store the transceiver in the dusted rooms and on exposure to
direct sunlight;
•
Avoid the exposure of the atmospheric downfalls on the SunSDR2 QRP and never spill
any liquids (especially aggressive) on it;
•
It is forbidden to use the Transceiver during storms;
•
Don't open the Transceiver, it has radio elements, which have high-sensitivity to the static
electricity. This document contains all necessary information about the internal design to
satisfy the
Users’
curiosity. To repair the Transceiver, ask the manufacturer;
•
Always disconnect the antenna from the Transceiver when not in use, or if there is a
danger of atmospheric electricity;
•
Ensure the Transceiver and any connecting cables are free from the effects of
electromagnetic interference and uncontrolled currents and voltages;
