High Frequency Beacon

From HFUnderground

(Difference between revisions)
Jump to: navigation, search
(Reported High Frequency Beacons)
(European High Frequency Beacons)
 
(195 intermediate revisions not shown)
Line 1: Line 1:
[[Image:ColoradoBeaconQSL.png|thumb|right|A QSL card from a High Frequency beacon]]
[[Image:ColoradoBeaconQSL.png|thumb|right|A QSL card from a High Frequency beacon]]
-
'''High Frequency Beacon''' is a colloquial term for an unlicensed '''[[radio beacon]]''' that does not follow government regulations for operation (such as [[Part 15]]), and is technically illegal.
+
'''High Frequency Beacon''' is a colloquial term for an unlicensed '''[[radio beacon]]''' that does not follow government regulations for operation (such as [[Part 15]]), and is [[PHFER_Beacon_Madness|technically illegal]]. Unlicensed HF beacons which operate legally, according to rules for low power transmissions are classified as [[HiFER]]s.  See also: [[HF_pagers|data link networks]] and [[Remote_Control|RC systems]] in the [[CB|26-28 MHz]] or [[11_meter|11 meter band]] region that operate as '''de facto''' beacons.  These systems may be found primarily on 26995, 27045, 27095, 27145, 27195 and 27255 kHz but numerous other frequencies are used worldwide. 
-
There are many of these beacons, quite a few are run as propagation experiments. Due to their nature, the exact location of these stations is generally not known, although many are believed to operate from remote locations in the deserts of the southwest USA. Likewise, these stations tend to suddenly appear and disappear from the air. Most run with very low power levels of just hundreds or even tens of milliwatts of power, and are often solar powered, so they can be hidden in open areas. Some are switched via a photocell, so they only operate at night, running off of a battery that is charged during the daytime by a solar panel.
+
There is a separate list of [[Part 15 Beacons]]
 +
 
 +
==Description==
 +
[[File:PRV-6852-001.jpg|thumb|right|PRV (6852 kHz) under test]]
 +
There are many of these beacons, quite a few are run as [[PHFER_Beacon_Madness|propagation experiments]]. Due to their nature, the exact location of these stations is generally not published, although many are believed to operate from remote locations in the deserts of the southwest USA. Likewise, these stations tend to suddenly appear and disappear from the air. Most run with very low power levels of just hundreds or even tens of milliwatts of power, and are often solar powered, so they can be hidden in open areas. Some are switched via a photocell, so they only operate at night, running off of a battery that is charged during the daytime by a solar panel.
There is a message board where listeners can report reception of beacons, it is also useful to see what other folks are presently hearing:
There is a message board where listeners can report reception of beacons, it is also useful to see what other folks are presently hearing:
-
[http://www.hfunderground.com/board/index.php/board,9.0.html HF Beacon Loggings]
+
* [http://www.hfunderground.com/board/index.php/board,9.0.html HF Beacon Loggings]
 +
 
 +
{{clear}}
-
+
== North American High Frequency Beacons ==
-
== Reported High Frequency Beacons ==
+
{| border="1" cellspacing="0" cellpadding="5" align="center"
{| border="1" cellspacing="0" cellpadding="5" align="center"
|- style="background: #E7E7FF"
|- style="background: #E7E7FF"
-
! Freq (kHz)    !! Station ID  !! Location !! Operation Notes    
+
! Freq (kHz)    !! Station ID  !! Location !! Operation Notes !! Last reported
|-
|-
-
| 2097 || A || Arizona || (15 watts) - 'A' ident or malfunctions as series of dits - 15 watts max., 24/7 (back on the air, recently reported on 6 April 2009)  
+
| 2008.4 || Dits|| Nevada USA|| (CW ditter 130 mW) N/S dipole, battery power, night only. Approximate CW timing: 191 millisecond dit duration, 1.55 second repetition, 1.5 minute ON cycle, 3 minute OFF cycle [https://www.hfunderground.com/board/index.php/topic,8299.0.html] || December 27, 2018
|-
|-
-
| 3450 || OK || OK  
+
| 2097 || A || Arizona ||  - 15 watts max., 10 second repetition, 24/7 [http://www.hfunderground.com/board/index.php/topic,6109.0.html] || July 18, 2023
|-
|-
-
| 4062 || C || SW, probably CA || Very drifty, but slow drift, logged form 4052 to 4063Its morse is not timed correcctly, it is probably sending a C with a short first dah (longer than dit, shorter than dah), but it could be an ER with a long dit, or a TR with a short dah.  24/7
+
| 4094 || UFO || unknown  || id's UFO TMP three times, after TMP two numbers are sent then back to dashes. On the air around Nov 2020 || 2021
|-
|-
-
| 4078.14 || WW || Colorado || 300-400 mW Inverted L  night time only
+
|4095.650  || DW || SW Desert || Desert Whooper - (1 Watt) 30 Whoops & ID - After 6 cycles sends Bat-Outside Temp -Inside Temp - Solar Panel current 24/7/365    https://www.hfunderground.com/board/index.php?topic=85047.0  || July 23, 2023
|-
|-
-
| 4077.27 || MO || Oklahoma || Solar 200 mW 118ft  end fed wire  24/7  
+
| 4096.1 || Dasher || Joshua Tree N.P. || 4.5 sec long dashes (about 13 dashes per min.) - big signal - north-facing dipole ('Coxie') 24/7   || 2021
|-
|-
-
| 4079 || TMPnnn || SW Arizona || The TEMPERATURE BEACON - Temperature in deg. F. - sends 'TMP' then 2 - 3 digit temp. in CW every 10 seconds. 1 watt    
+
| 4096.2 || Buddha || -Calif Desert || Slow dasher called Buddha, was "Phallaxy" was "Viking". About 30 mW, daytime only. On for 3 seconds, off for 3 seconds   || 2021
|-
|-
-
| 4089 || . || Death Valley N.P. || About 80 dits/minute, 24/7, 500 mW to inv. vee. dipole  
+
4096.85 "Marin Dit", 24/7 5-10 mW, harmonic of 8193.77 radiates better
|-
|-
-
| 4094.2 || PA || Arkansas || Solar power 200 mW  Dipole  24/7
+
| 4096.85 || "Marin Ditter" || Marin County || 24/7 5-10 mW, 2nd harmonic of 8193.77 radiates better   || 2021
|-
|-
-
|<s> 4094.8</s>  || W. Virginia || <s>Dasher</s> || <s>Sputnick - 60 dash/min, night only</s> Reported off air September 2009 due to lack of QSLs
+
| 4097.08 || Dasher || unknown || Slow Dasher, 2secs on and 2 secs off. Discovered Nov. 2020, it does appear to be related to 7997.2 kHz.  The two dashers appear to be in sync.   || 2021
|-
|-
-
| 4096 || ......_|| ||  6 dots 1 dash
+
| 4097.1 || Dasher || unknown ||  Fast Ditter. New in 2021   || 2021
|-
|-
-
| 4096.1 || Dasher || Joshua Tree N.P. || 4.5 sec long dashes (about 13 dashes per min.) - big signal - north-facing dipole ('Coxie') 24/7  
+
| 4098.2 ~ 4104+ || ZN || Western USA || Drifts up to 4104+ kHz during daylight hours, drifts down to 4098 kHz just after sunset, ZN sometimes heard run together like a prosign with an extra dash between the Z and N: "dah-dah-di-di-dah-dah-dit" or  --..--. || September 08, 2018
|-
|-
-
| 4096.25 || Dasher || Joshua Tree N.P. || 1 sec dash (about 30 per min.), 400 mW to inverted vee, 24/7 ('Hexie')  
+
| 4100.1 || H || Unknown || "H" repeated ID only, Source: [https://www.hfunderground.com/board/index.php/topic,45340.0.html HF Underground, 4 MHz Western USA Beacons] || September 10, 2018
|-
|-
-
| 4096.6 || Dasher || Mojave Nat. Preserve || 2 sec. dash (about 16 per minute) 400 mW to inverted vee, 24/7 ('Kelsie')  
+
| 4102.8 || W... || southeast California desert || [https://www.hfunderground.com/wiki/index.php/High_Frequency_Beacon#Windy_Beacon ''Windy'' beacon - see section on this page about the telemetry]. Sends Morse code 'W' and series of dits - each dit correlating to a turn of its anemometer wind sensor, so if it is windy in the vicinity, it sends lots of dits; and no wind, no dits. TMP temperature (Fahrenheit), B battery voltage (decivolts). 24/7/365 || 2021
|-
|-
-
| 4097.2 || Dasher || Inyo County, Calif. near DVNP  || 55 dashes per minute with chirp when sun is low; day-only, at 5300 ft. elevation ('Inyo-whooper'), inv. vee., 0.5w  
+
| 6700.4 || Dasher || Joshua N.P. || About 62 dashes per min., 24/7 (Hexy2k)   || 2021
|-
|-
-
| 4097.4 || KX ||  || "KX" ten times, then "TEMP IN F", then the temp (three times) inside the enclosure, then "TEMP OUT F", and the outside temp, again three times.  
+
| 7998.1 || HI || Western USA || Morse CW beacon. Approximate timing: 9.64 seconds repetition, dit duration 128 milliseconds || 27 December, 2018
|-
|-
-
| 4102.3 || W... || s.e. California desert || The WIND BEACON - sends 'W' ident and series of dits - each dit correlating to a turn of its anenometer, so if it is windy in the , it sends lots of dits; and no wind, no dits.  
+
| 8191.7 || Dasher || Southwestern USA || 4 second dash (somewhat variable), likely 2nd harmonic of ''Viking'' on 4095.86 kHz (Source: [https://www.hfunderground.com/board/index.php/topic,45438.0.html HF Underground Forum, 8 MHz Western USA Beacons]) || August 26, 2018
|-
|-
-
| 4194 || MX || Europe || Xtal controlled milliwatt beacon operated occasionally in europe. Sometimes sends straight carrier instead of ID.  
+
| 8192.7 || Dasher || Southwestern USA || 2.3 second dash, likely 2nd harmonic of ''Haystack'' on 4096.38 kHz (Source: [https://www.hfunderground.com/board/index.php/topic,45438.0.html HF Underground Forum, 8 MHz Western USA Beacons]) || August 26, 2018
|-
|-
-
| 4608 || MXC || Europe || Xtal controlled milliwatt beacon operated occasionally in europe. Sometimes sends straight carrier instead of ID. Sister beacon to MX.
+
| 8193.7 || Ditter || Western USA || 1.1 dits per second, ''MarinDit'', also may be heard on 4096.86 kHz (Source: [https://www.hfunderground.com/board/index.php/topic,45438.0.html HF Underground Forum, 8 MHz Western USA Beacons]) || July 23, 2023
|-
|-
-
| 5157.|| Dasher || Florida || BLINKY    200 mW  Dipole 24/7   
+
| 8200.1 || D || Unknown || (Source: [https://www.hfunderground.com/board/index.php/topic,45438.msg167326.html#msg167326 HF Underground Forum]) || September 08, 2018
|-
|-
-
| 5484  || SD || San Diego, CA  
+
| 27255 || Pager Beacon II || Virginia || 1.5 second long burst, then 4.5 second pause before cycle repeats.  .  FSK burst signal sounds like BRRRTTT BRRRTTT BRRTTT (in AM and  FM) Modified PS2000AN pager transmitter, XTAL controlled on 27.255MHz. 5w RF output.  Testing antennas and locations, on and off the air sporadically as of late summer 2024.  || July 18, 2024
|-
|-
-
| 5499.13  || WA || || Dasher 
 
|-
|-
-
| 5678.4 || Dasher || Colorado || PIKE  solar/battery 100 mW Dipole  24/7 "Honker"
+
|}
 +
 
 +
== High Frequency Beacons - Outside U.S.A. ==
 +
 
 +
{| border="1" cellspacing="0" cellpadding="5" align="center"
 +
|- style="background: #E7E7FF"
 +
! Freq (kHz)    !! Station ID  !! Location !! Operation Notes !! Last reported
|-
|-
-
| 6549.3 || FL || Florida || 300 mW    Dipole    24/7
+
| 1654.95 || PRV  || Preveza, Greece || Op: SW6HMU, QSL via sw6hmu@yahoo.gr (Source: ndblist).  || April 15, 2012
|-
|-
-
| 6626.2 || S || Inyo COunty, Calif. near DVNP || About 60-200 dashes per min., sun-only, ~200 mW ('Rocky')  
+
| 3810 || [[SV1TEST]] || Athens, Greece<BR>(KM18VB) || no further info. (Source: [[UDXF]]) ||
|-
|-
-
| 6626.4 || Dits || Mojave N.P. || Fast 'drippy' sounding dits about 100/min., sun-only, 1.5 watts ('Rainy')  
+
| 4095.4 || [[Common and Precious 5]] || JO62, Germany || CW + RTTY. Telemetry Data. || Active
|-
|-
-
| 6700.4 || Dasher || Joshua N.P. || About 62 dashes per min., 24/7 (Hexy2k)    
+
| 4194 || MX || Europe || Xtal controlled milliwatt beacon operated occasionally in europe. Sometimes sends straight carrier instead of ID.   ||
|-
|-
-
| 6815 || SV1TEST || presumably in Greece || no further info. (Source: [[UDXF]])
+
| 4608 || MXC || Europe || Xtal controlled milliwatt beacon operated occasionally in europe. Sometimes sends straight carrier instead of ID. Sister beacon to MX. ||
|-
|-
-
| 6852  || PRV  || Preveza, Greece || 15 W Op: SW2HMU & SV1BJW (Source: [[UDXF]]) [http://6852khz.blogspot.com/]
+
| 6375 || [[Common and Precious 4]] || Berlin, Germany || CW only. Solar powered with Battery backup. 1,5W into a short vertical. Operates 24/7. Sends SQL Cards on request. ([https://www.hfunderground.com/board/index.php/topic,26877.0.html Project Thread on HFU Board]) || Jule 17, 2018
|-
|-
-
| 8001.5 || S || S.W. Arizona || sun-only, 1 watt. strong signal daytimes  
+
| 6398.5 || [[Common and Precious 2]] || Berlin, Germany || CW only. Grid powered. 25W into a 1/2λ Dipole. Operates 24/7. Sends SQL Cards on request. ([https://www.hfunderground.com/board/index.php/topic,26877.0.html Project Thread on HFU Board]) || Jule 19, 2017
|-
|-
-
| 8003 || Dasher || Colorado || Solar/battery  dipole    24/7  "Pike 78" 78 dashes/min  
+
| 6547 || PRV  || Preveza, Greece || Op: SW6HMU, QSL via sw6hmu@yahoo.gr (Source: [[UDXF]]). Also reported on 6852.1 || January 22, 2012
|-
|-
-
| 8188.7 || W || Colorado || Solar/battery 100 mW  dipole daylight /7  Location: Colorado  
+
| rowspan=2 | 6815 || [[SV1TEST]] || Athens, Greece<BR>(KM18VB) || Active 2010-2011, no further info. (Source: [[UDXF]]) ([http://www.youtube.com/watch?v=jHHzK-nKO3Y Youtube video]) ||
|-
|-
-
| 8211.7 || OR || ||
+
| X9Q || S.E. Europe or<BR>Middle East || Sporadic operation, no further info. (Source: [[UDXF]]) || April 2012
|-
|-
-
| 8261 || F || Western Canada || 250mW into a 1/2 wave inverted vee, 1400-0500
+
| 6852.1 || PRV  || Preveza, Greece || 15 W Op: SW6HMU (Source: [[UDXF]]). <sup>(2)</sup> <sup>(3)</sup> Occasionally active with irregular schedule. QSLs via sw6hmu@yahoo.gr Former website [http://6852khz.blogspot.com/] closed. Reported also on 6547.0 and 1654.95 kHz || April 24, 2012
|-
|-
-
| 8497.|| Dasher || || Pike 26  26 dashes/min   
+
| 6994.8 || - || Norfolk, UK<BR>(JO02) || "RRR RRR RRR UK BEACON PROJECT 0.8E 52.8N 0.1 WATTS<BR>RRR RRR RRR REPORTS TO UKBEACON _ GMAIL.COM" (Source: [[UDXF]]) || 2011
|-
|-
-
| 10236.7  || FL || || Dasher  
+
| 7542 || 55555 || W Europe or NE USA || (Source: [http://www.hfunderground.com/board/index.php?topic=6447.0], N&O-173<sup>(5)</sup>, [[UDXF]]) || March 1, 2012
|-
|-
-
| 11002.|| CO || Colorado || Solar battery 300 mW    dipole 24/7
+
| 8000.0 || QRP || W. Europe || reported on UDXF by european monitors || February 9, 2014
|-
|-
-
| 14400.|| UFO || Colorado ||
+
| 10237.74 || [[Common and Precious]] || Berlin, Germany || Grid powered. 5W into a 1/2λ Dipole. Operates 24/7. Sends SQL Cards on request. ([http://www.hfunderground.com/board/index.php/topic,12795.0.html Project Thread on HFU Board]) || Jule 19, 2017
|-
|-
-
|<s> 26600</s>  || <s>Dasher</s> || || Obliterated by lightning in June 2010. Replacement is in the works.     
+
| 26510 || [[Common and Precious 3]] || Berlin, Germany || [[CB#Russian_CB_Channel_Frequencies|26.510 MHz]] Grid powered. 7W into a 5/8λ Vertical. Operates 24/7. Sends SQL Cards on request. ([https://www.hfunderground.com/board/index.php/topic,21834.0.html Project Thread on HFU Board]) || July 19, 2017
 +
|-
 +
| 26965 || 155TW321 || Thailand || CW ID every 3 minutes. CB Radio Channel 1 1 watt inverted V dipole antenna, Taiwan    || August 18, 2024
 +
|-
 +
| 27140.8 || 50RS497  || [[CB#Russian_CB_Channel_Frequencies|Russia]] || 27.141 MHz 27.140 MHz USB 27.142 MHz LSB CW ID 50RS497 ||
 +
|-
 +
| 27141.6 || 14RS000  || France || JN38 200 mW power 27.1416 MHz 27.142 MHz [[11_meter#11_meter_Beacon_Frequencies_11m_CB_Beacon_Channels_11m_Beacon_Bands|beacon]] CW ID 14RS000 + long tone burst 27.140 MHz USB  27.143 MHz LSB ||
 +
|-
 +
| 27175 || 153SD101  || Thailand || CB Channel 18 27.175 MHz CW ID 153SD101    ||
 +
|-
 +
| 27185 || CW ID in FM mode || Poland  || Morse code modulated FM [[CB]] [[https://www.hfunderground.com/wiki/index.php/CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Channel 19]] ||
 +
|-
 +
| 27205 || FM voice 11m CB [[CB#CB_Repeater_Listing|repeater]] beacon ||  Sweden || simplex repeater - DTMF [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|mid band]] CB channel 20 FM 27,205 MHz voice ID in FM mode plus sound effects and multi-tone end of transmission burst||
 +
|-
 +
| 27245 || siren-like "whoop" || UK || 1 watt power 1 pip per minute  [[CB]] Channel 25 Solar Powered Beacon 27.245MHz 27MHz UK CB beacon ||
 +
|-
 +
| 27255 || CW || Switzerland || CB Channel 23 27.255 MHz - 10w power CW ID  : VVV VVV DE 15BS061 15BS061 10 WATT 11M BEACON LOC. JN37TN JN37TN ||
 +
|-
 +
| 27405 || 1 dot/minute  || Germany || 1 watt power 1 pip per minute  [[CB]] Channel [[CB#German.2C_Czech_and_Hungarian_.22Auxiliary.22_channels_41-80|40]]- 27.405 MHz ||
 +
|-
 +
| 27499.6 || 50KS00  || Moscow, Russia || 2 watt power beacon 27.500 MHz LSB 27.4996 MHz CW ID 50KS00  ||
 +
|-
 +
| 27500 || 69BY  || Costa Rica || CW ID 69BY [also on 27550 and 27610]   ||
 +
|-
 +
| 27500 || Pips  || Mexico City || CW pips (unknown TX power)  ||
 +
|-
 +
| 27500 || 38 Voice  || Greenland || USB voice ID "38 voice beacon"  ||
 +
|-
 +
| 27500 || 153RT007  || Thailand || CW QRP Beacon 27.5 MHz [[11_meter#11_meter_Beacon_Frequencies_11m_CB_Beacon_Channels_11m_Beacon_Bands|27.500 MHz 11m beacon frequency]]    ||
 +
|-
 +
| 27500 || 19/27MHZDX  || Netherlands || CW ID VVV 19/27MHZDX JO21BU 20W 11MTRBEACONATGMAIL.COM  ||
 +
|-
 +
| 27550 || 69BY  || Costa Rica || CW ID 69BY alternate freq  ||
 +
|-
 +
| 27610 || 69BY  || Costa Rica || CW ID 69BY primary 27.610 MHz 27609.9 27.609.9 MHz    || Sept 8, 2021
|}
|}
 +
 +
==Telemetry Pirate Beacon==
 +
A telemetry pirate beacon may transmit some type of brief information about its surroundings, usually along with its identification symbol or some other identifying characteristic. Its transmission may have more content than the common dasher, ditter, or Morse code CW beacon, but the content can be mysterious or undocumented.
 +
 +
===Windy Beacon===
 +
A good example of a telemetry pirate beacon is the ''Windy'' beacon which has been widely logged on approximately 4102.8 kHz CW. It is believed by some beacon listeners to be a solar powered pirate beacon, located somewhere in the rough back-country of southwestern USA.
 +
 +
''Windy'' transmits Morse code telemetry of internal Temperature TMPfff (where fff is degrees Fahrenheit), Battery Voltage Bvvv (where vvv is decivolts), and 5 intervals of "W" followed by wind velocity dit pulses corresponding to revolutions of its ambient wind sensor. The typical timing of the ''Windy'' beacon telemetry is as follows: A 26 second temperature and battery interval; followed by 5 intervals of 13 seconds each for wind telemetry; with a total cycle time of approximately 135 seconds, repeating 24/7/365.
 +
[[File:4102_Morse_Beacon_Windy_Telemetry_Timing.jpg|480px|center|4102 kHz Windy pirate beacon telemetry diagram]]
 +
 +
===Desert Whooper===
 +
This telemetry beacon broadcasts on 4095.70 and has been logged widely on the West Coast, up into Canada, as far west as Hawaii and as far east as Maryland. It sends a Morse Code ID of DW, then thirty upward 150 Hz sweeps (whoops), repeats 6 times then sends telemetry: BAT is in volts DC. oTMP is in degrees F with a calibrated outdoor thermistor, iTMP is in degrees F using a digital two wire sensor within the weathertight box and PV is in milliAmps to monitor solar panel performance.
 +
 +
The antenna is a 1/2 wave dipole oriented North/South and raised 0.15 wavelength above the desert soil to create a more vertical but omni-like pattern known as NVIS. The 1:1 balun is home made and measured VSWR is close to 1.1 to 1 for 1 Watt of transmit power.
 +
 +
QSL Card
 +
 +
https://i.ibb.co/F7nbKRt/DW-QSL-2.jpg
==See also==
==See also==
-
[[Image:69BY-beacon.jpg|thumb|right|27 MHz beacon 69BY in Costa Rica]]
+
[[Image:69BY-beacon.jpg|thumb|right|27 MHz beacon 69BY in Costa Rica on [[CB|27.610 MHz]] 27610 kHz]]
* [[Pictures of high frequency beacons]]
* [[Pictures of high frequency beacons]]
 +
* [[HiFER]] 22 meter band 13.56 MHz 13560 kHz band [[Part 15]] beacons
 +
* [[11_meter#11_meter_Beacon_Frequencies_11m_CB_Beacon_Channels_11m_Beacon_Bands|11m beacons]] 11 meter band/27 MHz CB beacons
* [[PHFER Beacon Madness]] - A glimpse into the Pathology and Symptoms of this Disease
* [[PHFER Beacon Madness]] - A glimpse into the Pathology and Symptoms of this Disease
 +
* [[Radio propagation beacon]] - beacons with an official license
-
== External Links ==
+
==References==
 +
# Ary Boender: "Numbers and Oddities", issue 162, March 2011, pp. 17
 +
# Ary Boender: "Numbers and Oddities", issue 156, September 2010, pp. 15-16
 +
# "PRV" was often reported during the past few months and was unid until Linkz submitted a link to websites about this station. Linkz writes: ''I have no idea if this station is legit or a pirate. It's operator is Eystathios Karastathis (SW6HMU) from Preveza, Greece. He writes on his blog "PRV - 6852 kHz 15w cw BEACON with Dipole Ant on the air 17.30 pm- 8.00 am". According to his blog there is also a MF beacon "PRV beacon 500-531 khz am/cw 400 Watt" and a local AM broadcasting station "Studio 421" on 1655 kHz”''. This beacon was last reported to [[UDXF]] on December 31, 2011.
 +
# Ary Boender: "Numbers and Oddities", issue 159, December 2010, pp. 23.
 +
# Ary Boender: "Numbers and Oddities", issue 173, February 2012, pp. 29.
-
*[http://highfrequencybeaconsociety.bravehost.com/ High Frequency Beacon Society]
 
-
*[http://www.auroralchorus.com/4096khz.htm Auroral Chorus]
 
[[Category:Beacons]]
[[Category:Beacons]]

Latest revision as of 14:40, 4 September 2024

A QSL card from a High Frequency beacon

High Frequency Beacon is a colloquial term for an unlicensed radio beacon that does not follow government regulations for operation (such as Part 15), and is technically illegal. Unlicensed HF beacons which operate legally, according to rules for low power transmissions are classified as HiFERs. See also: data link networks and RC systems in the 26-28 MHz or 11 meter band region that operate as de facto beacons. These systems may be found primarily on 26995, 27045, 27095, 27145, 27195 and 27255 kHz but numerous other frequencies are used worldwide.

There is a separate list of Part 15 Beacons

Contents

Description

PRV (6852 kHz) under test

There are many of these beacons, quite a few are run as propagation experiments. Due to their nature, the exact location of these stations is generally not published, although many are believed to operate from remote locations in the deserts of the southwest USA. Likewise, these stations tend to suddenly appear and disappear from the air. Most run with very low power levels of just hundreds or even tens of milliwatts of power, and are often solar powered, so they can be hidden in open areas. Some are switched via a photocell, so they only operate at night, running off of a battery that is charged during the daytime by a solar panel.

There is a message board where listeners can report reception of beacons, it is also useful to see what other folks are presently hearing:


North American High Frequency Beacons

4096.85 "Marin Dit", 24/7 5-10 mW, harmonic of 8193.77 radiates better
Freq (kHz) Station ID Location Operation Notes Last reported
2008.4 Dits Nevada USA (CW ditter 130 mW) N/S dipole, battery power, night only. Approximate CW timing: 191 millisecond dit duration, 1.55 second repetition, 1.5 minute ON cycle, 3 minute OFF cycle [1] December 27, 2018
2097 A Arizona - 15 watts max., 10 second repetition, 24/7 [2] July 18, 2023
4094 UFO unknown id's UFO TMP three times, after TMP two numbers are sent then back to dashes. On the air around Nov 2020 2021
4095.650 DW SW Desert Desert Whooper - (1 Watt) 30 Whoops & ID - After 6 cycles sends Bat-Outside Temp -Inside Temp - Solar Panel current 24/7/365 https://www.hfunderground.com/board/index.php?topic=85047.0 July 23, 2023
4096.1 Dasher Joshua Tree N.P. 4.5 sec long dashes (about 13 dashes per min.) - big signal - north-facing dipole ('Coxie') 24/7 2021
4096.2 Buddha -Calif Desert Slow dasher called Buddha, was "Phallaxy" was "Viking". About 30 mW, daytime only. On for 3 seconds, off for 3 seconds 2021
4096.85 "Marin Ditter" Marin County 24/7 5-10 mW, 2nd harmonic of 8193.77 radiates better 2021
4097.08 Dasher unknown Slow Dasher, 2secs on and 2 secs off. Discovered Nov. 2020, it does appear to be related to 7997.2 kHz. The two dashers appear to be in sync. 2021
4097.1 Dasher unknown Fast Ditter. New in 2021 2021
4098.2 ~ 4104+ ZN Western USA Drifts up to 4104+ kHz during daylight hours, drifts down to 4098 kHz just after sunset, ZN sometimes heard run together like a prosign with an extra dash between the Z and N: "dah-dah-di-di-dah-dah-dit" or --..--. September 08, 2018
4100.1 H Unknown "H" repeated ID only, Source: HF Underground, 4 MHz Western USA Beacons September 10, 2018
4102.8 W... southeast California desert Windy beacon - see section on this page about the telemetry. Sends Morse code 'W' and series of dits - each dit correlating to a turn of its anemometer wind sensor, so if it is windy in the vicinity, it sends lots of dits; and no wind, no dits. TMP temperature (Fahrenheit), B battery voltage (decivolts). 24/7/365 2021
6700.4 Dasher Joshua N.P. About 62 dashes per min., 24/7 (Hexy2k) 2021
7998.1 HI Western USA Morse CW beacon. Approximate timing: 9.64 seconds repetition, dit duration 128 milliseconds 27 December, 2018
8191.7 Dasher Southwestern USA 4 second dash (somewhat variable), likely 2nd harmonic of Viking on 4095.86 kHz (Source: HF Underground Forum, 8 MHz Western USA Beacons) August 26, 2018
8192.7 Dasher Southwestern USA 2.3 second dash, likely 2nd harmonic of Haystack on 4096.38 kHz (Source: HF Underground Forum, 8 MHz Western USA Beacons) August 26, 2018
8193.7 Ditter Western USA 1.1 dits per second, MarinDit, also may be heard on 4096.86 kHz (Source: HF Underground Forum, 8 MHz Western USA Beacons) July 23, 2023
8200.1 D Unknown (Source: HF Underground Forum) September 08, 2018
27255 Pager Beacon II Virginia 1.5 second long burst, then 4.5 second pause before cycle repeats. . FSK burst signal sounds like BRRRTTT BRRRTTT BRRTTT (in AM and FM) Modified PS2000AN pager transmitter, XTAL controlled on 27.255MHz. 5w RF output. Testing antennas and locations, on and off the air sporadically as of late summer 2024. July 18, 2024

High Frequency Beacons - Outside U.S.A.

Freq (kHz) Station ID Location Operation Notes Last reported
1654.95 PRV Preveza, Greece Op: SW6HMU, QSL via sw6hmu@yahoo.gr (Source: ndblist). April 15, 2012
3810 SV1TEST Athens, Greece
(KM18VB)
no further info. (Source: UDXF)
4095.4 Common and Precious 5 JO62, Germany CW + RTTY. Telemetry Data. Active
4194 MX Europe Xtal controlled milliwatt beacon operated occasionally in europe. Sometimes sends straight carrier instead of ID.
4608 MXC Europe Xtal controlled milliwatt beacon operated occasionally in europe. Sometimes sends straight carrier instead of ID. Sister beacon to MX.
6375 Common and Precious 4 Berlin, Germany CW only. Solar powered with Battery backup. 1,5W into a short vertical. Operates 24/7. Sends SQL Cards on request. (Project Thread on HFU Board) Jule 17, 2018
6398.5 Common and Precious 2 Berlin, Germany CW only. Grid powered. 25W into a 1/2λ Dipole. Operates 24/7. Sends SQL Cards on request. (Project Thread on HFU Board) Jule 19, 2017
6547 PRV Preveza, Greece Op: SW6HMU, QSL via sw6hmu@yahoo.gr (Source: UDXF). Also reported on 6852.1 January 22, 2012
6815 SV1TEST Athens, Greece
(KM18VB)
Active 2010-2011, no further info. (Source: UDXF) (Youtube video)
X9Q S.E. Europe or
Middle East
Sporadic operation, no further info. (Source: UDXF) April 2012
6852.1 PRV Preveza, Greece 15 W Op: SW6HMU (Source: UDXF). (2) (3) Occasionally active with irregular schedule. QSLs via sw6hmu@yahoo.gr Former website [3] closed. Reported also on 6547.0 and 1654.95 kHz April 24, 2012
6994.8 - Norfolk, UK
(JO02)
"RRR RRR RRR UK BEACON PROJECT 0.8E 52.8N 0.1 WATTS
RRR RRR RRR REPORTS TO UKBEACON _ GMAIL.COM" (Source: UDXF)
2011
7542 55555 W Europe or NE USA (Source: [4], N&O-173(5), UDXF) March 1, 2012
8000.0 QRP W. Europe reported on UDXF by european monitors February 9, 2014
10237.74 Common and Precious Berlin, Germany Grid powered. 5W into a 1/2λ Dipole. Operates 24/7. Sends SQL Cards on request. (Project Thread on HFU Board) Jule 19, 2017
26510 Common and Precious 3 Berlin, Germany 26.510 MHz Grid powered. 7W into a 5/8λ Vertical. Operates 24/7. Sends SQL Cards on request. (Project Thread on HFU Board) July 19, 2017
26965 155TW321 Thailand CW ID every 3 minutes. CB Radio Channel 1 1 watt inverted V dipole antenna, Taiwan August 18, 2024
27140.8 50RS497 Russia 27.141 MHz 27.140 MHz USB 27.142 MHz LSB CW ID 50RS497
27141.6 14RS000 France JN38 200 mW power 27.1416 MHz 27.142 MHz beacon CW ID 14RS000 + long tone burst 27.140 MHz USB 27.143 MHz LSB
27175 153SD101 Thailand CB Channel 18 27.175 MHz CW ID 153SD101
27185 CW ID in FM mode Poland Morse code modulated FM CB [19]
27205 FM voice 11m CB repeater beacon Sweden simplex repeater - DTMF mid band CB channel 20 FM 27,205 MHz voice ID in FM mode plus sound effects and multi-tone end of transmission burst
27245 siren-like "whoop" UK 1 watt power 1 pip per minute CB Channel 25 Solar Powered Beacon 27.245MHz 27MHz UK CB beacon
27255 CW Switzerland CB Channel 23 27.255 MHz - 10w power CW ID  : VVV VVV DE 15BS061 15BS061 10 WATT 11M BEACON LOC. JN37TN JN37TN
27405 1 dot/minute Germany 1 watt power 1 pip per minute CB Channel 40- 27.405 MHz
27499.6 50KS00 Moscow, Russia 2 watt power beacon 27.500 MHz LSB 27.4996 MHz CW ID 50KS00
27500 69BY Costa Rica CW ID 69BY [also on 27550 and 27610]
27500 Pips Mexico City CW pips (unknown TX power)
27500 38 Voice Greenland USB voice ID "38 voice beacon"
27500 153RT007 Thailand CW QRP Beacon 27.5 MHz 27.500 MHz 11m beacon frequency
27500 19/27MHZDX Netherlands CW ID VVV 19/27MHZDX JO21BU 20W 11MTRBEACONATGMAIL.COM
27550 69BY Costa Rica CW ID 69BY alternate freq
27610 69BY Costa Rica CW ID 69BY primary 27.610 MHz 27609.9 27.609.9 MHz Sept 8, 2021

Telemetry Pirate Beacon

A telemetry pirate beacon may transmit some type of brief information about its surroundings, usually along with its identification symbol or some other identifying characteristic. Its transmission may have more content than the common dasher, ditter, or Morse code CW beacon, but the content can be mysterious or undocumented.

Windy Beacon

A good example of a telemetry pirate beacon is the Windy beacon which has been widely logged on approximately 4102.8 kHz CW. It is believed by some beacon listeners to be a solar powered pirate beacon, located somewhere in the rough back-country of southwestern USA.

Windy transmits Morse code telemetry of internal Temperature TMPfff (where fff is degrees Fahrenheit), Battery Voltage Bvvv (where vvv is decivolts), and 5 intervals of "W" followed by wind velocity dit pulses corresponding to revolutions of its ambient wind sensor. The typical timing of the Windy beacon telemetry is as follows: A 26 second temperature and battery interval; followed by 5 intervals of 13 seconds each for wind telemetry; with a total cycle time of approximately 135 seconds, repeating 24/7/365.

4102 kHz Windy pirate beacon telemetry diagram

Desert Whooper

This telemetry beacon broadcasts on 4095.70 and has been logged widely on the West Coast, up into Canada, as far west as Hawaii and as far east as Maryland. It sends a Morse Code ID of DW, then thirty upward 150 Hz sweeps (whoops), repeats 6 times then sends telemetry: BAT is in volts DC. oTMP is in degrees F with a calibrated outdoor thermistor, iTMP is in degrees F using a digital two wire sensor within the weathertight box and PV is in milliAmps to monitor solar panel performance.

The antenna is a 1/2 wave dipole oriented North/South and raised 0.15 wavelength above the desert soil to create a more vertical but omni-like pattern known as NVIS. The 1:1 balun is home made and measured VSWR is close to 1.1 to 1 for 1 Watt of transmit power.

QSL Card

DW-QSL-2.jpg

See also

27 MHz beacon 69BY in Costa Rica on 27.610 MHz 27610 kHz

References

  1. Ary Boender: "Numbers and Oddities", issue 162, March 2011, pp. 17
  2. Ary Boender: "Numbers and Oddities", issue 156, September 2010, pp. 15-16
  3. "PRV" was often reported during the past few months and was unid until Linkz submitted a link to websites about this station. Linkz writes: I have no idea if this station is legit or a pirate. It's operator is Eystathios Karastathis (SW6HMU) from Preveza, Greece. He writes on his blog "PRV - 6852 kHz 15w cw BEACON with Dipole Ant on the air 17.30 pm- 8.00 am". According to his blog there is also a MF beacon "PRV beacon 500-531 khz am/cw 400 Watt" and a local AM broadcasting station "Studio 421" on 1655 kHz”. This beacon was last reported to UDXF on December 31, 2011.
  4. Ary Boender: "Numbers and Oddities", issue 159, December 2010, pp. 23.
  5. Ary Boender: "Numbers and Oddities", issue 173, February 2012, pp. 29.



This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.