Posted by: Jan
« on: November 14, 2013, 12:33:31 pm »For 100 W the -30 dB is 0.1 W. Thus it's preferred to use additional 20 dB attenuator so the resulting power is 1 mW. A 30 dB attenuator can be used as well.
News:
Thank you for using this forum as the technical support base for your device.
● You can format the text and attach screenshots, photos and RDS Spy records
● Faster reply: 50 % of questions are answered within 30 minutes
● You don't need to register (but registration is possible)
● The members represent a wide range of experts
● The resolution will be helpful to other users
● You'll be notified by email about new post
Posted by: RadioTop
« on: November 14, 2013, 11:49:37 am »Despite your recommendation to prefer receiving by air, I intend to connect the Pira P175 to our FM transmitters. They offer a "Monitor RF" output labelled "-30dB". Max. RF power at the Tx output is 100 W. Sorry, I'm not good at dB-maths. What attenuator do I need not to damage the P175?