[RTTY] What is this auto mode that QRM's me?

Terry ab5k at hotmail.com
Sun Mar 30 13:14:43 EDT 2014


Here is a list of 80 meter Winlink frequencies:


VE1YZ		3,565.000 KHz	Pactor 1,2,3,4
VE1YZ		3,565.000 KHz	WINMOR 1600
WG3G		3,569.000 KHz	Pactor 1,2,3
CIW930	3,571.500 KHz	Pactor 1,2,3,4
VE7SCC	3,571.500 KHz	Pactor 1,2,3,4
WB9FHP	3,575.500 KHz	WINMOR 500
N9LOH		3,579.200 KHz	WINMOR 500
N4MEH		3,580.000 KHz	Pactor 1,2,3
AB7AA		3,582.500 KHz	Pactor 1,2
AB7AA		3,582.500 KHz	WINMOR 500
W5SEG		3,584.500 KHz	Pactor 1,2,3
W5SEG		3,584.500 KHz	WINMOR 500
RT9K		3,585.000 KHz	Pactor 1,2,3,4
RT9K		3,585.000 KHz	Robust Packet
K9BBS		3,585.000 KHz	WINMOR 500
KB5OZE	3,585.000 KHz	WINMOR 500
RT9K		3,585.000 KHz	WINMOR 1600
KF7RSF	3,585.500 KHz	Pactor 1,2,3
SL5ZXP	3,585.500 KHz	Pactor 1,2,3,4
KF7RSF	3,585.500 KHz	WINMOR 1600
SL5ZXP	3,585.500 KHz	WINMOR 1600
K9BBS		3,586.500 KHz	Pactor 1,2
K7EK		3,587.000 KHz	Pactor 1,2,3
K7EK		3,587.000 KHz	WINMOR 1600
N0IA		3,587.200 KHz	Pactor 1,2,3
N0IA		3,587.200 KHz	WINMOR 1600
WA6TVD	3,587.500 KHz	Pactor 3
WA6TVD	3,587.500 KHz	WINMOR 1600
K5AEA		3,588.500 KHz	Pactor 1,2,3
K5AEA		3,588.500 KHz	Robust Packet
K5AEA		3,588.500 KHz	WINMOR 1600
AB7AA		3,589.000 KHz	Pactor 3
KK5AN		3,589.000 KHz	Pactor 3
KQ4ET		3,589.000 KHz	Pactor 1,2,3
N7YRT		3,589.000 KHz	Pactor 1,2,3
WL7CVG	3,589.000 KHz	Pactor 1,2,3
AB7AA		3,589.000 KHz	WINMOR 1600
KQ4ET		3,589.000 KHz	WINMOR 1600
WA7ODN	3,589.500 KHz	WINMOR 1600
KN6KB		3,590.000 KHz	Pactor 3
N0IA		3,590.000 KHz	Pactor 1,2,3
V51PJ		3,590.000 KHz	Pactor 1,2
W0MAC		3,590.000 KHz	Pactor 1,2,3
KN6KB		3,590.000 KHz	WINMOR 1600
N0IA		3,590.000 KHz	WINMOR 1600
W0MAC		3,590.000 KHz	WINMOR 1600
W6SH		3,590.000 KHz	WINMOR 1600
CIW931	3,590.500 KHz	Pactor 1,2,3
K7ODN		3,591.000 KHz	Pactor 1,2,3
N5SSH		3,591.000 KHz	Pactor 1,2,3
XE2BNC	3,591.700 KHz	Pactor 3,4
XE2BNC	3,591.700 KHz	WINMOR 1600
KE7XO		3,592.000 KHz	Pactor 3
KR4MA		3,592.000 KHz	Pactor 1,2,3
W0MAC		3,592.000 KHz	Pactor 1,2,3
WE9COM	3,592.000 KHz	Pactor 1,2,3
KE7XO		3,592.000 KHz	Robust Packet
KE7XO		3,592.000 KHz	WINMOR 1600
W0MAC		3,592.000 KHz	WINMOR 1600
W7ODN		3,593.000 KHz	Pactor 1,2,3
WX4J		3,593.000 KHz	Pactor 1,2,3
WX4J		3,593.000 KHz	WINMOR 1600
K0SI		3,594.000 KHz	Pactor 1,2,3
KE5VRO	3,594.000 KHz	Pactor 1,2,3
KA7HRC	3,595.000 KHz	Pactor 1,2,3
KB5HCD	3,595.000 KHz	Pactor 3
KC4TVO	3,595.000 KHz	Pactor 1,2,3
KL7EDK	3,595.000 KHz	Pactor 1,2,3
LA3F		3,595.000 KHz	Pactor 1,2
KL7EDK	3,595.000 KHz	WINMOR 1600
LA3F		3,595.000 KHz	WINMOR 500
N5TW		3,596.000 KHz	Pactor 1,2,3
N5TW		3,596.000 KHz	WINMOR 1600
K1SGA		3,596.020 KHz	Pactor 1,2,3
OH2AV		3,596.500 KHz	WINMOR 1600
K7DAV		3,597.000 KHz	Pactor 1,2,3
K7DAV		3,597.000 KHz	WINMOR 1600
DB0ZAV	3,597.500 KHz	Pactor 1,2
DB0ZAV	3,597.500 KHz	WINMOR 500
LA3F		3,597.900 KHz	Pactor 1,2
W1EO		3,597.900 KHz	Pactor 1,2,3
LA3F		3,597.900 KHz	WINMOR 500
W1EO		3,597.900 KHz	WINMOR 1600
W4CPG		3,598.000 KHz	Robust Packet
OE6XPD	3,598.500 KHz	Pactor 1,2,3,4

-----Original Message-----
From: RTTY [mailto:rtty-bounces at contesting.com] On Behalf Of Jerry Flanders
Sent: Sunday, March 30, 2014 11:32 AM
To: Shoppa, Tim; rtty at contesting.com
Subject: Re: [RTTY] What is this auto mode that QRM's me?

At 12:20 PM 3/30/2014, you wrote:
>With all the Winlink and RM-11708 talk going around, I have a question.
>
>When I contest especially on 80M RTTY band (also occurs other bands, 
>but most frequently on 80M RTTY band, may be weighted by the fact that 
>I like 80M the most!) I am often QRM'ed by some sort of automatic 
>digital mode.
>
>This auto mode is characterized by two sides chirping at each other, 
>one side typically is "longer" than the other. The short chirps are 
>just a second or so, the longer chirps are several seconds.
>
>Bandwidth is similar or broader than RTTY but it is not RTTY.
>
>I think this is some sort of ALE mode or HF packet, but don't know if 
>it's Winlink.
>
>It most frequently comes up on me after I've been running on a freq for 
>10 or 20 minutes or even more.
>
>I know that this auto mode "sees me" because if I pause, it switches 
>from "short chirps", to the long chirps. So clearly this auto mode sees 
>me on the frequency and knows the frequency isn't clear, but is trying 
>to carry on nevertheless.
>
>Does this sound familiar? I am on east coast US and I'm pretty sure 
>this is some sort of ALE mode (unsure which one) and I'm 100% sure 
>there's no human at either end.
>
>Tim N3QE
>_______________________________________________
>RTTY mailing list
>RTTY at contesting.com
>http://lists.contesting.com/mailman/listinfo/rtty

A guess: The long chirps when you pause probably means that it could not
transfer data while you were txing, but took advantage of your stopping to
transfer it. I suspect it would give up after a few minutes if it could not
complete the transfer, but i might be wrong. 
If the rx station doesn't receive valid data, it requests a repeat (the
short chirp). the tx station then tries again with the long chirp. When you
went qrt, the rx station received all OK, and stopped requesting repeats.
Don't know what mode.

Jerry W4UK 

_______________________________________________
RTTY mailing list
RTTY at contesting.com
http://lists.contesting.com/mailman/listinfo/rtty



More information about the RTTY mailing list