Difference between revisions of "Radioshack 3-Channel FM Wireless Intercom"

Revision as of 23:11, 26 July 2014

This is the 3-Station/3-Channel FM Wireless Intercom, previously known as the Radioshack FM Wireless Intercom, 2-channel, and now known as Advanced 3-Station/3-Channel FM Wireless Intercom - what makes it "advanced" is not clear.

RadioShack Model: 43-3105 | Catalog #: 43-3105

The unit replaces the model 43-219 and remains 100% compatible. There have been similar models prior to 43-219 that are older and also compatible.

It is a type of FM Wireless Power Line Intercom that places RF modulation on the AC electrical system of the building.

• Gray; Built-in Speaker, Microphone; 3 per pack
• Attached 6.5', 3 Sprong AC Power Cord
• Control Volume and Power; Lockable talk button to monitor another room with confidence; FM circuitry provides clear, reliable *reception and transmission; Call button signals other stations
• 3 Channels( A-200KHz, B-270KHz, C-230KHZ); Transmission Range - 300 feet

Review

Radio Shack no. 43-3105 wireless intercom works well

Electronic Info

The model uses three AC-Cap Suppresion,0.022uF 275V X2 Polypropylene Film Capacitors which are interference suppressors for across the line applications. The "bridge" between the AC current and the onboard circuitry begins with these three capacitors. The board itself operates on 10.6V DC. The RF modulation is injected in the power cord from two poles into Black and Green on one and white (common) on the other. The hot and ground are bridged opposite two separate capacitors (2 of the 3 Suppression AC-Caps.)

Note: This page is notably incomplete. You can help. Please contribute by registering your email address and adding your knowledge to this page. The D.U.C.K. wiki was created to be a free informative place that allows an open exchange of accurate information. Learn more...