Amplifier keying relay interface for Kenwood TS-790 VHF/UHF buffer switching

Description

High quality relay buffer to interface between Kenwood TS-790 radio and will key any VHF/UHF amplifier.
The Kenwood TS-790 can only provide for a small amount of current on the external amplifier keying output.
Our box will key ANY amplifier and isolate the sensitive keying circuit inside the TS-790
This relay interface box has the genuine Kenwood plug to connect into the Ext. Control jack on the back of the TS-790 TS-790A for keying VHF and UHF amps. This can also be used to switch other devices instead of an RF power amplifier. The RBI-790 has THREE completely separate relay circuits to completely isolate each RF power amplifier.
When you are on 2M (144 Mhz) only the 144 MHz amplifier output jack is switched
When you are on 70cm (430 Mhz) only the 430 MHz amplifier output jack is switched
When you are on 23cm (1296 Mhz) only the 1296 MHz amplifier output jack is switched
(If you desire having all three relays keyed at the same time when VHF/UHF radio band is keyed, see our less expensive ebay listing for the TS-790 relay interface.)
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
Needs 9-15 VDC at only 40 ma!
Relays 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
Need to switch an HF amplifier? See our ebay listing for many models we make.
Need to key TWO amplifiers? See our eBay store listing for the RBI-2 TWO amplifier keying relay interface
Need to key MORE than two linears? Contact us for custom made amplifier ptt relay keying interfaces. (We just finished a SIX unit amp keying box, keyed from a single radio)
This is not one of those types that make you use a battery to power the unit! This high quality device is power by your station power supply or any filtered DC source from 9-15 VDC (only 40ma required)
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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