[Elecraft] Sequencer delay settings for NCC-1, K3, KPA500
Jeff Cathrow
cathrowinternational at hotmail.com
Wed Apr 22 11:13:16 EDT 2015
After about a two-week delay getting my DXE NCC-1 noise phaser hooked up I am just about ready to fire it up. After talking to W6AIM about setting up the NCC-1 with the same Elecraft gear we both enjoy I decided to put a sequencer inline to protect everything for good measure. I will be running QRO most of the time as my antenna situation is minimal and the KPA500 invariably comes in handy when trying for DX.
I know the delay upon keying the PTT line should be on the order of just a few milliseconds (4-6)---but what about the transmit delay for the K3 and or amp? Isn't there about 15 or more ms of hang time on those? Should the delay be the same for the K3 as the KPA or slightly different?
I'll have the following hooked up to my DXE Time Variable Sequencer: one active DXE RPA preamp for one of the two noise receiving antennas, the NCC-1, K3 and KPA500. (Eventually I will probably add another DXE preamp for the other noise antenna so they are balanced but I happened across a good deal on ebay for one in the last week).
I am particularly curious as to what I should set the delay for the K3 & KPA to (the delay is adjustable in 2 ms steps by DIP switches in the sequencer) as when I am transmitting I want to have the delay long enough to avoid any "trail" of RF getting into the receive end of things.
Any help will be much appreciated!
73,
Jeff, NH7RO
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