Wayne
Adding TX Inhibit was a great feature to have. Looking at the details
though it seems this function is NOT available when the transverter
interface is enabled. This would have been a very nice feature for us guys
wanting to an "interlock" for T/R sequencing to protect pre-amps in uwave
setups. Any chance XVRT-ON control being moved to the DIGOUT-1 pin,
keeping TX-INH where it is and adding fuctionality for transverter setups
both LP/HP??
Patiently waiting for my assembled K3.
Ben W4SC
----- Original Message -----
From: "Joe Subich, W4TV" <[EMAIL PROTECTED]>
To: "'Elecraft Reflector'" <elecraft@mailman.qth.net>
Cc: "'wayne burdick'" <[EMAIL PROTECTED]>
Sent: Friday, December 21, 2007 1:12 PM
Subject: RE: [Elecraft] K3's Transmit Inihibit function (TX INH)
Wayne,
Very good! For the record the K3 ACC output be mapped to the
Yaesu "Band data" Jack as follows:
Function K3 Yaesu
DB15HD DIN8/262
------------------------------------------------------
+13 n/a 1
TX Gnd 10 2
Ground 5,12 3
Band A 13 4
Band B 3 5
Band C 9 6
Band D 14 7
Inhibit/~Enable 7 8 (low to tx)
Note: unless the pin 7 of the K3 ACC connector includes an internal
pull-up, it will be necessary to provide an external pull-up (10K
to +5V (max) source).
This should be useful for the large number of accessories (both
commercial and home built) that are compatible with the Yaesu
"Band Data" interface.
Any progress on an input that places the K3 into low power transmit
(programmable level) for setting a RF activated remote tuner or
amplifier/tuner like the Quadra, PW1, etc.?
73,
... Joe, W4TV
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of wayne burdick
Sent: Thursday, December 20, 2007 12:40 PM
To: Elecraft Reflector
Subject: [Elecraft] K3's Transmit Inihibit function (TX INH)
Hi all,
I've just added the TX INH function and its associated menu entry to
the K3. Just in case you have no clue what this is: it provides a way
for an external station controller to determine which of two or more
transceivers can have access to resources such as an amplifier. It's
typically used in multi-op contest situations.
By popular demand, the TX inhibit level can be *either* active-low or
active-high. Thus the TX INH menu entry has three settings:
OFF (no TX inhibit)
LO=INH (a logic 0 inhibits transmit)
HI=INH (a logic 1, 5 V, inhibits transmit)
I'm testing this feature right now, and it should be in the next
production firmware release.
73,
Wayne
N6KR
---
http://www.elecraft.com
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