PM3000A
I will try to keep this post completely technical in content because I do not want to make this a "sales pitch".
Consider the PM3000A stereo intercom. It may be a little more expensive than the Sigtronics intercom, but there are capabilities that might make it worth it for you. Here is a list of considerations:
1) Best VOX circuit in the market (this opinion is based upon many customer's feedback). The benefit is that is that the mics are off when they should be and turn on instantly when there is intercom activity
2) Great sounding stereo music. The documented frequency response is 20 hertz to 20,000 hertz. You will find the PS Engineering logo on display at the Bose booth because since 1992, they have relied on us for their intercoms at trade shows.
3) 2 unswitched inputs, these are inputs that can be used for audio from devices such as AOA, GPS alerts, auto pilot disconnect, etc
4) Music input is differential, eliminating ground loop noise. Ground loop noise is when you might power your iPod from a power source that has a different ground potential than your avionics bus
5) Dimmable LED, this LED is for both power on and transmit, and if connected to the Rheostat, it will dim along with the rest of your instrument lighting
6) Extremely reliable and looks great on the panel.
You might consider going to
www.ps-engineering.com/pm3000.shtml to get more information.
See the latest issue of Aviation Consumer that evaluated panel mount intercoms where PS Engineering got the "Top Recommendation"
www.aviationconsumer.com
Thank you for your indulgence and I will be glad to answer any other questions why the PM3000A may be a better choice for your panel.
Sincerely,
Mark Scheuer
PS Engineering, Inc.
www.ps-engineering.com