On Feb 20, 2023, at 5:50 PM, Stan Ross <[email protected]> wrote:
Maybe we could get some DQRM-seeking Sidewinder missiles attached to one of those Chinese balloons!Sent from my iPhoneOn Feb 20, 2023, at 2:09 PM, [email protected] wrote:ADXA Folks,
I changed the "Subject" line but kept some of Nick's comments about DQRM. Obviously this is again a major topic of discussion given the recent 3Y0J Bouvet op. It has occurred on FT8WW but not to the extent it did on 3Y, for whatever reason.
I seem to recall that one or two of the major DXpeditions in recent years (before COVID) employed a mechanism to detect DQRM and would do exactly what Nick mentions - move their TX frequency up or down about a 100 Hz to clear the DQRM. I don't know what the mechanism was, it could have been something as simple as the DXpedition being in "live" contact with their pilots and the pilots providing feedback to them that DQRM was occurring.
Regardless, as I noted DQRM is a hot topic now. The IARU has received numerous complaints and pleas for help as I'm sure ARRL and other national amateur radio societies have as well. Its not an easy problem to solve. The regulatory authority in each country has no interest in addressing the matter and to be honest it occurs mostly during a major DXpedition, so it is a DX related problem. I have heard a couple of stories where the DQRM was triangulated and the offender was identified and confronted and it stopped. That is often difficult to do and in today's society a confrontation is potentially dangerous.
However I believe if the DX clubs around the world can raise $1M for a DXpedition we can collectively address this issue. I made that point this morning during an IARU internal discussion in addressing a complaint we had received.
To be clear, DQRM is not new to DXpeditions nor is the issue of someone calling on the DXpeditions TX frequency. That's different than DQRM but is met with QRM from the frequency cops. If you're not proficient in CW, you are most likely very proficient in hearing the letters "UP" and a couple more that usually follow. I've heard DQRM for years but that doesn't make it right and in no way should we resolve it to be a way of current life and acceptable.
Whatever approach the DX community takes in addressing DQRM, if any, we should be part of the solution and remember, we're the Arkansas DX Association and we set the high standard for operating ethics and do not condone this type of bad activity in any way!
73 Joel W5ZN
______________________________________________________________I also think about this in terms of the DQRMers of DXpeditions. Frequency setting is so accurate these days, it's easy for the DQRMer to get exactly zero beat with the DX, even if he doesn't even hear the DX station! I wonder if it would be beneficial for the DX to meander around a bit, maybe within a +/- 100 Hz band? You couldn't carry this idea too far or legitimate chasers would be thrown off.
ADXA mailing list
Home: http://mailman.qth.net/mailman/listinfo/adxa
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html