We know you have choices......

Why buy from Radiodan?
A 50+ year HAM, 46+ years in the professional two-way radio business.

THE LEADER IN AMPLIFIER KEYING CABLES AND INTERFACES

We use a high quality DIN connector and a high braid content cable with RCA plug for excellent shielding! 
The keying cable plugs into your radio 7 pin DIN jack, and then to the RBI-1 buffered protective keying interface. The output of the RBI-1 has an RCA jack that provide a closure of contacts to activate amplifiers that require a ground or closure of contacts to activate. 
What do you get?
Kenwood 7 pin keying cable 
RBI-1 protective buffer keying interface 
High quality RCA-RCA cable

compatible with Kenwood radios:

• TS-2000 HF (not VHF/UHF, see our other listings for VHF/UHF)
  
• TS-830, TS-850, TS-870
• TS-930, TS-950
• TS-120, TS-130, TS-140, TS-180
• TS-430, TS-440, TS-450, TS-480
  
• TS-530, TS-570, , TS-590S, TS-590SG, TS-890S, TS-990
  
• TS-680, TS-690, TS-950-series
• TS-940 is slightly different pin wiring, if ordering for TS-940 make sure you let us know!

We have sold thousands of keying cables and RBI-series interfaces, your fellow hams LOVE our products!
We HIGHLY suggest using a relay buffer interface between your expensive radios amplifier keying circuit and your amplifier. 

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! 
Switching speed very fast 5ms!
Genuine relay used for switching (not an easy to damage solid state device)

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