TX Keying lines

Lewis Cheek

Looking for information on the TX keying lines with the Flex-6300, I see from manual RCA jack can sink 140 ma, I don't see specs for line on 9 pin connector.  I need to key my Elecraft KPA500 and switch two additional ( perhaps 3) devices. One device is the DX Engineering RTR-1A, the other is MFJ 1026 and perhaps the 20 VDC power supply used with Pixel Loop. Really love the folks around me with Plasma TV's

73's
Lew
N4CO

Anthony Bowyer

From what I can gather, the 6300 only has one key line. If you need several, you may be able to isolate each one with a schottky diode (if what is keyed can handle the drop across them).

If the keyed devices won't key that way, you might be way ahead to key a couple of optoisolators with SSR outputs.  An ASSR-1228 would do nicely. These have two 'switches' each and will switch near 60v at 200ma. Maybe a bit more if that are all DC.

Neil K2NF

There are pin specs in the following document that can be downloaded from the Flex Web Site :

FLEX-6000 SIGNATURE SERIES FLEX-6000 HARDWARE REFERENCE MANUAL
Version 1.3
8/15/2014