No, Bob, I hooked the Key Pulser to the "KEY"
input of the Omni 6+ not the keyer paddle input.
Otherwise I would still be getting a string of CW
characters when I set the pulser to 100% instead
of a steady tone (I even varied the keyer speed
control on the Omni 6+ just to be sure that it
wasn't connected to the internal keyer). I think
Tommy W4BQF is correct that the firmware
upgrade that addressed the "micro-chirp" limits the
top-end keying speed of the Omni 6+. A friend
of mine who I spoke to on 75 meters last night
confirmed this. He said that if I go back to the
previous version of the Omni 6+ firmware, the
problem will go away.
73 de Mike, W4EF.................................
----- Original Message -----
From: "Robert & Linda McGraw K4TAX" <RMcGraw@Blomand.Net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Saturday, August 13, 2005 4:26 AM
Subject: Re: [TenTec] Omni VI+ Keying
The Paragon is responding correctly. The pulser is keying the keyer of
the
Omni VI+. Depending on the Keyer Speed of the Omni VI+ it will be
different.
73
Bob, K4TAX
----- Original Message -----
From: "Michael Tope" <W4EF@dellroy.com>
To: <tentec@contesting.com>
Sent: Friday, August 12, 2005 9:52 PM
Subject: [TenTec] Omni VI+ Keying
I just did an interesting experiment comparing my Paragon
585 (aka "Paragon 1") to an Omni 6+ that I just picked up
on Ebay. When I connect my Inrad Key Pulser
( http://www.qth.com/inrad/) to the Paragon, the forward power
reading on my Diawa CN-620B wattmeter reads in rough
proportion to the duty cycle setting of the Key Pulser (e.g.
if the wattmeter reads 100 watts at a Key Pulser duty cycle
setting of 100%, it read ~50 watts when the key pulser duty
cycle is set to 50%). Thus, using the Key Pulser with the
Diawa wattmeter, I can tune my amplifier at a 50% duty
cycle and just double the wattmeter reading to get the PEP
output level, thus minimizing the wear and tear on the amplifier.
When I try doing the proceeding with the Omni 6+, the
meter reading at anything less than 100% duty cycle
on the Key Pulser is about 10% of the full-scale (e.g.
key-down) wattmeter reading. I haven't put the Omni 6+
on my O'scope yet, but it sure seems like it is truncating
the pulses from the Key Pulser significantly compared to
the Paragon. The keying speed of the pulser is 48 WPM
with a variably duty cycle (50 msec pulse repetition rate,
0 to 100% duty cycle).
Anybody have any experience with this?
Thanks,
Mike, W4EF..........................................
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