Audio 20 with bluetooth

shorty · 25-03-2009, 08:24 PM

I was working on a 211 estate today and I noticed that the new Audio 20 units with bluetooth have two ariel amps , can any one tell me what the function of the extra amp on the drivers side is

Diesel Benz · 26-03-2009, 06:23 AM

You mean the FM antenna amplifiers at both sides of the car? An S211 wagon would have a traditional 2-branch diversity receiver radio, hence two antennas and antenna amplifiers.

A sedan would have multiple FM antennas but since all are located close to each other at the rear screen, a single antenna amplifier can pick up the the best reception path. This is done under the control of the head unit ZF-signal (sort of feed-back about the signal quality the tuner would see).

25-03-2009, 08:24 PM	#1
shorty Hardcore MB Enthusiast Join Date: Jan 2009 Location: ireland Car: 211 200 k avantgrade, Z1000 mr2 Posts: 526	Audio 20 with bluetooth I was working on a 211 estate today and I noticed that the new Audio 20 units with bluetooth have two ariel amps , can any one tell me what the function of the extra amp on the drivers side is

26-03-2009, 06:23 AM	#2
Diesel Benz Hardcore MB Enthusiast Join Date: Feb 2006 Location: Europe Car: 221.122 & 212.025 & 204.089 Posts: 2,957	You mean the FM antenna amplifiers at both sides of the car? An S211 wagon would have a traditional 2-branch diversity receiver radio, hence two antennas and antenna amplifiers. A sedan would have multiple FM antennas but since all are located close to each other at the rear screen, a single antenna amplifier can pick up the the best reception path. This is done under the control of the head unit ZF-signal (sort of feed-back about the signal quality the tuner would see).

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)