TX Keying lines

  • 1
  • Question
  • Updated 3 years ago
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
Photo of Lewis Cheek

Lewis Cheek

  • 233 Posts
  • 41 Reply Likes

Posted 3 years ago

  • 1
Photo of Anthony Bowyer

Anthony Bowyer

  • 32 Posts
  • 7 Reply Likes

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.

Photo of Neil K2NF

Neil K2NF

  • 25 Posts
  • 2 Reply Likes

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