[CQ-Contest] Digital Voice Keyers for TenTec OMNI VI+
W8HO at qsl.net
Thu Dec 27 02:04:06 EST 2001
Thanks Nat and those of you who focused on my question about which voice
keyer system would work best with an Omni VI+.
So far the front runners are the ZS4TX which has extensive SO2R ability and
as Nat mentions below--the second option is sound card keying using
Writelog (which I already use for contest logging). The only problem is
that method requires a separate set of voice recordings to use in
non-contest voice-keyer work and a program to utilize them. Still, it does
In closing let me mention that TenTec has strongly cautioned me against
turning the Mic gain beyond the 12:00 position. They have stated that it
can cause damage to the audio circuits as well as distortion. (Please note
both of these rigs are less than a year old, this may or may not apply to
older Omnis.) Finally a caution, anytime you desire to use a dynamic
microphone cartridge like the Heil---you must protect it from the voltage
on the electret voltage pin, such as those on the TenTec Mic, and Icom
microphone connectors. You can do that with a capacitor, or Heil sells a
TenTec cord for their mics. (This cable only deals with the voltage
protection, not the low drive difficulty.)
Thanks again everyone, and if u have any voice keyers that are working with
an Omni VI+ please let me know. I greatly appreciate ur thoughtful comments.
At 10:24 AM 12/26/2001 -0500, you wrote:
From: Frank W8HO <W8HO at qsl.net>
Subject: [TenTec] Reliable Voice/CW Keyer for Omni VI+
Hello to all and Happy Holidays!
As I look forward to the remaining contest season I am faced with a
dilemma--Which voice keyer or better yet a combination voice/cw keyer will
The replies so far seem to have gotten off-track and onto a Heil mic
bent.... Your question was on voice/cw keyers!
I have used the Writelog contest logging program for several years and have
been extremely pleased with its CW/RTTY/VOICE keying ability. It uses the
computer sound card to do the voice and RTTY signal generation. I connect
the sound card in/outputs to the audio in/out phono plugs on the back of my
Omni 6+ via 1:1 transformers (for isolation, circuit using Radio Shack
parts is given on the Writelog web site, www.writelog.com). No problems
with RF or ground loops. Works like a champ! SSB messages can be recorded
"on the fly" for playback. You can also record parts of messages (in
separate files) that can be "stuck together" for the playback under
Writelog's control. If you get really ambitious, you can record your voice
pronouncing each letter in the alphabet and each number (each into its own
computer file). Writelog can then go back and use these recordings to
phonetically "sound out" a call to provide almost a fully computer
generated QSO exchange in a contest. Really saves on the voice after a few
hours into a 'test.
Given how well Writelog has worked for me, I have had no need to buy any
other voice keyer.
Hope this helps.
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