What is this mode? Found at 7215 and very wide!

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Can someone tell me what mode this is I am seeing at 7215 and looks like 9khz wide?
I saw this at 18:10 UTC in Detroit, MI area.
Tnx de Arnie W8DU
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Arnie

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Posted 1 year ago

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Bob Craig, K8RC

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I have no answer for you but, with the powerful spectrum-monitoring tool in front of you, you will see a lot of strange non-amateur but man-made wonders.
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Kirk

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Looks like a DRM radio signiture.  I often listen to RNB out of New Zeland.  Of course it could also be an encrypted radio station but it would have the  same or very simular signature.

73,

Kirk, K6KAR
Osprey,FL
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Mark Gottlieb

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Looks like Commercial Shortwave radio.
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Bill Carnett

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I've seen that too.  In a somewhat, maybe, related question:  I've seen ham call signs in the waterfall.  Anybody know how they do that?  
73, Bill
AH6FC
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K3DCW

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Video ID, which is available in Fldigi, DM780 and MultiPSK.

It uses an adaptation of Feld Hell mode to show callsigns, CQ, mode IDs, or just about any other text you might want.  Not as useful as RSID for digital fans, but for those that are not diehard digital users, it can be a useful tool.

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Arnie

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I doubt this is a signal from down under at this time of day in the midwest.
As for the callsigns seen in the waterfall on digital modes, that is done in software, the most popular of which are HRD and FLDigi. It is called Reed_Solomon ID encoding, of RSID for short. It can be very useful in identifying what mode you are sending so the person on the other hand who may be a newbie does not have to guess.
73 de Arnie W8DU
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Walt

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http://www.sigidwiki.com/wiki/Database

is your friend - lots to look at and compare, or submit if you have something new.

Cheers
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W0DRO

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I found this on ARRL intruder web page:

Broadcaster “Sound of Hope” from Taiwan continues to be jammed by a much stronger signal from China on 18.080 MHz each morning at about 0600 and later. Broadcast transmissions in this band are illegal, and BNetzA has complained. The agency also has complained formally about intruding spurious transmissions daily from a broadcaster in Iran on 7205 kHz, extending down to 7195 kHz and up to 7215 kHz.
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K3DCW

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From 1800-1900z, 7220 (center frequency) is used by Radio Romania for a Digital Radio Mondiale (DRM) transmission from Tiganesti, Romania.
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Arnie

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Thanks! That is the most likely candidate. Fits the time and frequency and expected propagation. Is it me or has 40 meters pretty much dried up lately as far as qso'ing?
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Ria - N2RJ, Elmer

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It definitely looks like DRM. 
And yes, 40 is the pits these days. I've been mostly on 80. 
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David Warnberg

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Could be DRM..   program is called ARTEMIS to help identify those signals

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Rick WN2C

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K3DCW

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Wrong freq.  http://www.shortwaveschedule.com/index.php?freq=7220

You also need to make sure you use center frequency, not the lower edge. All regulatory/scheduling assignments are done based upon center frequency.

A very useful site indeed, but I've always found it best to go to one of two sources.

1) The HFCC, which is an organization of broadcasters and administrations around the world who voluntarily work out the schedule coordination, with updates as needed throughout the year. http://www.hfcc.org/data/index.phtml

They publish the official schedules from many broadcasters. However, not every broadcaster or administration participates, thus real-world monitoring helps.

Therefore, a good secondary reference is: 

2) Eibi - http://www.eibispace.de/

They use a blend of HFCC and on-the-air monitoring to identify broadcasters. 

However, shortwaveschedule.com is indeed useful, especially for the "on the air now" feature.
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