This listing is for our Radiodan RBI-1 relay buffer interface and the proper cable with terminals to connect to your Yaesu FL-2100B FL-2100 FL-2000B FL-2000 amplifier so that the T/R relay inside the amplifier does not damage your expensive radio's amplifier keying circuitry.
Most ICOM and KENWOOD radios are easy to connect to this RBI-1/FL2100 by using one of our optional (available in separate listings) cables.
Yaesu radios (unfortunately) use many different connectors to access the radio's external amplifier keying.

High quality relay box to interface between any radio* and will key any amplifier.
Many newer radios can only provide for a small amount of current on the external amplifier keying output.

Our box will draw <3 ma from your radio and will key any amplifier. A very handy accessory. Get one BEFORE you damage your radios amplifier keying output!
RCA jacks in and out for keying the interface from your radio and output to your amplifier T/R relay control
Needs 9-15 VDC at only 40 ma, has 2.1 x 5.5 mm DC jack, universal plug and 5 feet of wire included, center positive
Relay rated up to 240 VAC at 5 AMPS!
Genuine relay used for switching (not an easy to damage solid state device)
See separate ebay listing for RCA-RCA male connector cables
View MANUAL at http://radiodan.com/pdf/RBI-1.pdf 

On your FL-2100B use the adapter RED to "RLY" and GREEN to either "E" terminal

*Can be used with any radio that has connection for switching to ground for T/R or amplifier control.

See our eBay store listings for our complete line of Amplifier Relay Buffer Interfaces.
In other listings we have models with 2 radios and a bypass switch, 2 or more amplifiers or other device (like noise reduction unit keying, mute, etc)

When connecting your Radio and Amplifier, there may be switching voltage, polarity, and current incompatibility  that can cause damage to your radio or amplifier if connected without a switching interface between them. Even if your internal radio switching looks like it might be usable, it is wise to have an extra degree of isolation between your amplifier and radio with our relay buffer interface.

73, Dan W7RF ( Radiodan ) 

Ham Radio amplifier amateur amatuer radio amplifier relay buffer interface



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