[RTTY] FW: [Orion] RTTY GLITCH

[Jim McDonald]

Forwarded from the Orion reflector because W5PJR (on the RTTY Honor Roll)
isn't on the RTTY reflector.  I have noticed the same in my month-old Orion.

Jim N7US

-----Original Message-----
From: orion-bounces at contesting.com [mailto:orion-bounces at contesting.com] On
Behalf Of Dean Showalter
Sent: Wednesday, April 06, 2005 6:42 AM
To: orion at contesting.com
Subject: [Orion] RTTY GLITCH


Hello Orioneers?

As a RTTY DXer I often have reason to work split. I discoverd that the
subreceiver readout is not shifted by the FSK button. The passband is
shifted correctly, but the readout does not follow; therefore the reading is
incorrect by roughly 2.2 kHz.

This means that in split operation  using the sub reciever to listen to the
pileup? You will not be listening where you are transmitting.  You can
workaround this by cranking in -2270 Hz on the subreciever RIT.  You should
verify this setting by checking the two receivers for zero beat with a test
signal. I don't know how consistent the RIT numbers are from radio to radio.
Ten-Tec was unaware of this particular glitch.  Paul Clinton had their
engineering department verify the condition and obtained a commitment from
their software engineer to fix it in the NEXT issue.

I have dedicated USER 2 to remembering the RTTY parameters, so that upon
calling it up, all the common RTTY frequencies have the 2270 kHz offset in
the subreciever.

This condition has been verified to exist in two other late ORIONs, all
three with version 1.372 firmware. I don't know about earlier versions.

73  and RTTY forever

Dean  W5PJR
Tijeras, NM



_______________________________________________
Orion mailing list
Orion at contesting.com http://lists.contesting.com/mailman/listinfo/orion