User's Manual

3. Technical data:
Supply Voltage 3.5V to 10 V DC
Absolut maximum rating 12 V DC
Supply current 31 mA (± 3mA)
Modulation input level 1.65 V DC + 1.65 V sinωt for ± 2.5KHz frequency deviation
Modulation frequency 0 - 5 KHz
Input impedance > 4.7 KΩ
RF – output power 10 dBm ± 2 dB conducted
Frequency accuracy ± 1.5 KHz
Temperature stability ± 5 KHz from -20°C to +70°C
4. Restrictions:
- Do not supply a higher modulation input level or a higher frequent audio signal to
the TX modulation input as specified in 3
- Do not us the 70TX-S radio module to transmit audio or voice, expect in alarm
and emergency situations
- Do not build illegal spy devices using the 70TX-S radio module
- Do not operate the module at lower or higher supply voltages as specified
For any further question, comments or advices, please contact HM-Funktechnik at
[e-mail]