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Author Topic: Some 10/11 meters activity  (Read 2027 times)

Offline flexoman61

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Some 10/11 meters activity
« on: October 21, 2015, 1616 UTC »
A little activity heard here on 10/11 meters.
Heavy fade with strong peaks.

27530 usb-1506z, Ham call signs heard, brief conversation. Australian accents. "G'Day mate"
27720 usb-1520z, conversation in French. doesn't sound like Hams. Digital tones heard.
28487 usb-1511z, Ham Dxing Stillwater, Kansas.
27555 usb-hearing CQ calls, ham call signs. Several non-ham stations and languages heard. French, Spanish.
27480 usb-More French heard.
27442 usb-Even more French conversations. Not so sure if this is French, my best guess.
27070 am-1550z, Spanish conversations, CBer's?
27027 am-CBer's down Southern US, I hear these same guys often when band is open. very strong sigs.
25000 am-WWV, clear signal
29455 am-1601z, several stations in the mix, religious programing, news program heard.
29215 am-another mix of stations, Spanish, English, music heard. heavy fade
28026 usb- CQ DE  IK2SND, Italy?






Please QSL to: flexoman61@gmail.com
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Icom R75/Kenwood R-2000
200' longwire/43m band folded dipole/VHF ground plane

Offline R4002

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Re: Some 10/11 meters activity
« Reply #1 on: October 21, 2015, 1647 UTC »
The "ham call signs" you're hearing below 28000 aren't actually ham callsigns.  They're 11 meter DX callsigns (the first character(s) should always be a number).  Check out this list of 11-meter "callsign" prefixes http://dxprefixes.blogspot.com/.  These stations are all freebanders, but there's quite a lot of order to it considering its all illegal DXing below 28000.

Glad to see the band is opening up again.  27025 is CB channel 6, used by operators running at least several kW.

99.99% of stations will be on frequencies ending on either 0 or 5 since most operators are using channelized radios.  The UK FM CB allocation is 27601.25 to 27991.25 in 10 kHz steps, so if you're hearing something in FM with a weird offset, chances are its UK based (or somebody using a radio set for the UK channels). 

Here's some quick logs starting at 1650 UTC

25000 AM - WWV loud and clear
25875 AM - Spanish language taxi dispatch
25950 FM - STL (weak)
26225 USB - Spanish language, strong signals
26305 AM - Truckers
26475 AM - Spanish language, heavy fading, possibly taxis
26495 AM - Spanish language, similar to 26475 AM
26555 LSB - Spanish language, very strong signals
26585 AM - Spanish language, heavy QRM
26655 AM - Spanish language, Mexican accents, OTH Radar QRM
26715 AM - Puerto Rico (very loud signals)
26805 AM - Spanish language activity - likey taxi dispatch
26835 AM - "Mister 155 Puerto Rico" very strong signals
26965 - 27405 - legal 40 channel US/European CB band
27415 LSB - US stations, Kentucky heard
27425 LSB - "you take care and have a good one now"
27425 AM - Spanish language taxi dispatch
27435 LSB - "73s 522, this is 001" "yeah 35 Indiana, how are you, over?"
27455 USB - Spanish language
27480 USB - Spanish language
27485 USB - Spanish language, S9+ signals
27515 AM - Spanish language taxi dispatch
27555 USB - International 11-meter calling frequency - 26 India Sierra 002 Scotland calling CQ DX (lots of other stations on frequency)
27625 USB - French language
27700 USB - SSTV (weak)
27715 USB - Spanish language
27781 FM - UK FM channel 19, heavy fading
27785 USB - Spanish language
« Last Edit: October 21, 2015, 1706 UTC by R4002 »
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Offline flexoman61

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Re: Some 10/11 meters activity
« Reply #2 on: October 21, 2015, 1833 UTC »
Thanks for that info on the freebanders, i get the prefixes but where do they get the rest of the call sign?
Please QSL to: flexoman61@gmail.com
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Offline R4002

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Re: Some 10/11 meters activity
« Reply #3 on: October 21, 2015, 2055 UTC »
Usually from the radio club the operator is a member of.  Or it is simply made up.  A lot of guys on the "domestic" DX channels (27385, 27395, up through 27505 or so, all LSB, with 27385 and 27425 being the more popular ones) will simply use a numerical callsign.

So, for example, say a station from Italy is a member of the Alfa Delta DX group, and is member number 499.  His 11-meter callsign would be 1AD499.  Of course a lot of stations on 11m just make up a callsign and throw their country's prefix on the front of it.  

I also recommend that you take a look at the Freebanding Frequency Chart Here: http://www.mds975.co.uk/Content/cb_radio_15.html#chart_02

Most export radios are either 3-band (26515-27855), 6-band - the most common (25615-28305 or 26065-28755), or 12-band (25165-30105 or, in the case of the Superstar 158EDX and several other radios, 24265-29205).  There are several variants to this but 25615-28305 and 25615-30105 are the most common.  Most CB radios sold in Europe today are "multi-norm", which means you can select which country's frequency allocation you want to use and the radio gives you access to those channels.  For example, the UK technically has two distinct CB bands, the familiar 26965-27405 40-channel allocation, with AM/FM/SSB allowed, and the UK-specific 27601.25-27991.25 FM-only 40-channel allocation on top of that.  Germany has 80 channels as well.  26965 to 27405 make up channels 1-40, and 41-80 are 26565-26955.  So buying a European radio and setting it to a different country's "mode" gives you access to lots of channels.  But, there's more...

Many of these radios are now including "RU mode" (RU for Russia) and RU mode means 25615-30105, both AM and FM mode.  Get yourself a radio that supports SSB and put it in "RU mode" and you've got several hundred channels at your disposal.  Who cares if some of them are part of the 10-meter ham band?  

Here's some more logs (starting at 2100 UTC 10/21/2015)

25950 FM - STL
25990 FM - STL
26135 AM - Spanish language (I think, I can tell there's a carrier there...)
26205 USB - Spanish language
26225 USB - Spanish language, Dominican Republic mentioned
26365 AM - Spanish language, with elaborate roger beeps
26375 AM - Very weak, but there is voice activity here
26405 AM - Truckers (English language, US accents)
26475 LSB - Spanish language, strong signals, consistent peaks so S9+
26500 USB - Spanish language
26585 AM - Busy with powerful stations from Mexico/Latin America as usual
26595 AM - Spanish language, strong signals
26605 AM - Spanish language, S5-S7, music
26635 AM - Sounds like truckers, weak
26645 AM - Spanish language, S1-S2 weak signals, with heavy OTH radar QRM
26715 AM - Puerto Rico, very strong as usual
26735 AM - Truckers, Southern US accents, with OTH radar QRM
26945 AM - Truckers
26975 AM - CB channel 2 - Truckers
27015 AM - CB channel 5 - Heavy QRM/heterodyne from Latin America
27025 AM - CB channel 6 - Very strong signals (they call this channel "The Superbowl" for a reason ;))
27035 AM - CB channel 7 - similar to 27015
27055 AM - CB channel 8 - Spanish language, heavy QRM
27265 AM - CB channel 26 - Southern US high power stations (see also 27285)
27285 AM - CB channel 28 - See above
27345 AM - CB channel 34 - Spanish language, S5 peaking to S9, with AC hum on some signals
27385 LSB - CB channel 38 - North American SSB calling freq, several stations calling CQ/working DX
27425 AM - Spanish language
27435 USB - Spanish language
27445 LSB - US stations, with AM carrier QRM fading in and out
27455 USB - Latin American SSB calling freq
27475 USB - Spanish language, with whistles and echo FX, some stations peaking at +30 over S9
27505 AM - Spanish language
27515 AM - Spanish language - YL taxicab dispatcher with roger beeps
27555 USB - International SSB calling freq
27655 AM - US truckers
27655 LSB - Spanish language
27690 LSB - Spanish language
27695 LSB - Spanish language
27775 AM - Spanish language - possibly taxicabs
27915 AM - Spanish language, weak
« Last Edit: October 21, 2015, 2126 UTC by R4002 »
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Offline flexoman61

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Re: Some 10/11 meters activity
« Reply #4 on: October 21, 2015, 2311 UTC »
Thanks for all the info R4002. nice loggins, I'll use them for referance since these freq. seem hard to research. By the way, what are these two loggins
 25950 FM - STL 25990 FM - STL? FM studio to xmitter links, relays?
Please QSL to: flexoman61@gmail.com
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Icom R75/Kenwood R-2000
200' longwire/43m band folded dipole/VHF ground plane

Offline ChrisSmolinski

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Re: Some 10/11 meters activity
« Reply #5 on: October 21, 2015, 2344 UTC »
Thanks for all the info R4002. nice loggins, I'll use them for referance since these freq. seem hard to research. By the way, what are these two loggins
 25950 FM - STL 25990 FM - STL? FM studio to xmitter links, relays?

Yep: http://www.hfunderground.com/wiki/Broadcast_auxiliary_remote_station
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
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Offline ChrisSmolinski

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Re: Some 10/11 meters activity
« Reply #6 on: October 22, 2015, 1307 UTC »
More activity again this morning, so far it all seems to be from Latin America.
Chris Smolinski
Westminster, MD
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Offline R4002

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Re: Some 10/11 meters activity
« Reply #7 on: October 22, 2015, 2129 UTC »
Most of what I'm hearing is Latin American as well, however,

26915 AM is active this afternoon (2100-2130 ish UTC) with US based stations, some with very powerful signals.  26915 AM is to AM freeband operators as 27555 USB is to SSB freeband operators

EDIT:  

At 2300 UTC:

Opening continues.  Some logs starting at 2255 UTC on...

26525 AM - Spanish language, the usual roger beeps and noise toys
26540 LSB - Spanish language, heavy fading
26585 AM - Spanish language, Baja California mentioned
26605 AM - Spanish language, Mexican accents.  Long transmissions with techno music underneath OM's voice.  Long roger beeps and other FX
26735 AM - Techno music heard
« Last Edit: October 22, 2015, 2302 UTC by R4002 »
U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers