The Echo may help but may not
The Echo transmitter will work only if two things are present:
1. You have a way to power it.
2. You are about 75 feet or less from your receiver.
The 75 feet quickly gets shorter if you have to transmit through floors/walls etc.
Sometimes you are better off with antenna extenders. Although the package tells you can only use 2 of them for 100 ft max, I've personally used 5 and extended the reach close to 300 feet.
Other options are to put a fm transmitter to the radio to re-broadcast up to 1 mile distance to a FM radio.
My suggestion is to post this question over at the DRC ( www.digitalradiocentral.com ) there are a lot of people who have knowledgable about this unit as well as other solutions who can give you some help.