Tony Mann and Todd Emslie June - July, 2018 Northern Hemisphere Global Tuner Summaries

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Tim Bucknall
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Tony Mann and Todd Emslie June - July, 2018 Northern Hemisphere Global Tuner Summaries

Post by Tim Bucknall » 07 Oct 2018 11:07

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During the June and July, 2018 peak months of the northern hemisphere sporadic E season, I alternated between four remote PC DX installations: Florina, Greece, Hong Kong, Daegu, South Korea, and Sussex, UK.

The Florina, Greece tuner benefits from above average Es intensity and distribution at a low latitude listening location towards the equator. The Florina remote tuner produced near-constant forward scatter from eastern European, and Russian television video carriers. The single-hop-Es path to Israel was also near optimal in distance at circa 1,000 miles. Multi-hop Es (nEs) was most productive at Florina. As seen on DXmaps, Japanese, Chinese, and Philippines 6 metre FT8 digital decode QSLs into Florina were relatively frequent.

During June and July, 2018, the OIRT FM band signals were numerous into southern Greece. 66.2 MHz and 68.36 MHz Radio Rossi (17 kW nominal TX ERP) are some of the most commonly received via single-hop Es.

The Florina FM band is jammed out with stations present on nearly every 100 KHz. Mostly Israel, Lebanon, Russia, and eastern Europe were heard.

Greece was the place to be back in the 1960s to 1990s DX TV years. Band 1 would have been saturated with European, African, Middle East, and Russian TV signals. Distant multi-hop sporadic E signals like C1 China, E2 Malaysia, E4 India, E3 Thailand, and A2 Philippines were likely mostly buried under the single hop signals. Es and F2 ionisation generally increases at lower latitudes closer to the equator.

Paul Farley's Sussex Southern UK installation is far more sensitive and directive than any of the Global Tuner network stations. However despite this, low VHF reception results were mainly limited to ocassional "jumper" forward scatter radar from Israel. There are two main reasons for this: subpar European Es season, and monitoring location not sufficiently close to the equator.

One can only speculate at how much exotic DX could be received assuming Paul's large tower mounted rotatable KMA 20-element 25 - 100 MHz log-periodic was used at Florina, Greece!

Florina, Greece Reception Highlights:

34.224 MHz Russian woodpecker via single-hop Es. This was in almost every day.

50.08 MHz Jerusalem 6m beacon (1590 km) often in with the Israel military forward scatter reflection signals.

49.825 MHz "jumper", presumed Israel military. Other Israel military forward scatter frequencies heard: 30.0, 32.325, 35.425, and others.

46.5 MHz high power radar, presumed from western Russia.

49.74740 MHz chR1 Moscow via 2040 km Es.

48.250000 MHz Afghan chE2 via 3900 km 2Es. Weak and infrequent.

40.53 MHz Snotel Nepal (nominal 1 kW) via 3Es. Infrequent at 5900 km.

35.25 MHz Tirupati, India university installation radar meteor via 6340 km 2Es.

55.25 MHz chA2 Manila, Philippines video via multi-Es at 9720 km.

62.25 MHz Thailand chE4 video via multi-Es at 8100 km.

Daegu, South Korea Reception Highlights:

Far eastern Russian OIRT FM has also been heard on the Daegu, south Korea remote tuner. Chinese, Philippines, Taiwan, and Japanese TV and FM is also well received. 62.25 MHz chE4 Thailand video via 2Es at circa 3600 km noted on a few days. 48.2500 MHz Afghan chE2 video also received.

Taiwan FM via 1500 km Es was often strong into Daegu, South Korea.

DXing on a remote Global tuner is like operating an Icom scanning receiver via software. Frequency display, various tuning steps, AGC, squelch, and AM/FM/USB/wFM modes are adjustable via the PC mouse. or keyboard. Audio from video carriers can be seen on home spectrum analyser software.

The major disadvantage is that these remote tuners feature sub-par antenna gain and directivity compared to large TV/FM DX arrays used back at home. Typically, only a wideband discone, or single wideband dipole is used. However, the superior receiving locations largely compensate for low gain antenna receiving systems.

There were several signals that I did not write down, hence this summary is not 100% complete. Tony Mann and myself heard different DX at various times due to different log-in monitoring sessions.

Todd Emslie

Sydney, AU


Below is a summary of the 2018 Northern Hemisphere Es season I experienced on Global Tuners. I monitored mostly on Hong Kong, Daegu, Manila, Florina (Greece) and Vero Beach (Florida). I concentrated more on analog TV carriers and radars than FM, for which a spectrum analyser was indispensable.

Daegu, South Korea, which is perhaps the best tuner in Asia, due to its location and freedom from overload on the FM band (SDRPlay) was unavailable for the peak of the season, from late May through 7 July. Although this was a poor Es season in Europe, there were many instances of the Es MUF in Asia reaching at least 80 MHz. On 9 July FM Es was observed for 12 hours. Several times during FM Es openings I detected Chinese TV carriers with sidebands on 168.250 MHz (even one on 168.251) but could not tell if these were aircraft scatter or Es. Hong Kong was more sensitive on 6m (could detect 49.75 via MS) but the restricted frequency coverage of the FT817 receiver and its bad overload on the FM band restricted its usefulness for VHF DXing. Perhaps because the Hong Tuner has a nearby hill to the northwest, I never heard any low VHF signals from Europe and central Asia. Manila at 2480 km was surprisingly good on Band 1 and FM with a loop antenna.

Via multi-Es from Greece, I logged 8000-10000 km Band 1 TV carriers from Thailand (E4), The Philippines (A2), and even the Chinese Hainan Island radar on 38.9 MHz. I originally thought the chE4 carriers were from India, but they were the same two zero offset frequencies as Thailand. 8000 km seemed to be the limit for 6m FT8 European signals into Vero Beach, Florida. 50 MHz 6m 2Es from Hong Kong to northern Japan/southern Russia was fairly common (Japanese 6m beacons and R1 Poronaysk).

Tony Mann

OF77, Perth, 32S 116E

DX log Global Tuners, May-Aug 2018, Tony Mann

Abbreviated tuner locations:

F = Florina, Greece

D = Daegu, South Korea

H = Hong Kong

M = Manila, Philippines

P = Pontiac, southeast Michigan

V = Vero Beach, Florida

Radars: PRF = pulse repetition frequency


35.25 Tirupati, India meteor radar (H 11 May; F 19 June; D 16 July )

38.9 Fuke, Hainian meteor radar (F 8000 km, 08 UTC, 17 July )

40.530 Pakistan Snotel master tx (F, 27 June; D, 15 July)

48.250000 chE2 Afghanistan (F 27 June; D 15 July, 5000 km)

48.260314 chE2 Thailand (F 5000 km)

50.313 FT8: Europe, incl LY3W Latvia & SV1VJA Greece (V, 8000 km, 4 June);

PV8DX (V, 3900 km); S01WS Western Sahara (F, ~3000 km); A92AA, A71AM, A92GE and 9K2GS all Persian Gulf (F, ~3000 km).

55.249988 chA2 Manila (F 9720 km, 0652-0720 UTC 15 June)

55.249999 & 55.250014 chA2 Davao & Southern Philippines (F 10000 km, 0800-0830 UTC 17 July)

62.250001 & 62.250021 chE4 Thailand (F 8000 km, 0530 UTC 27 June)

OIRT FM (D), e.g. 67.82, 68.36, 69.32, 69.92, 70.16, 70.40

OIRT (F) many in Belarus, Ukraine and western Russia

FM China (D), Taiwan (D), Japan H & D), Russia (D), best day: 9 July - 12 hours,

including Taiwan FM on 107.3 with RDS

FM China (M) & Thailand (M, 94.25, 5 July )

FM USA (P, 6 July, 4 hour Es: mostly TX - WCDG, KEOM, KZPS, KPFT, WTGF, KACC, WQLS, KJIC, KKHA)

112.5 CGT VOR Shanghai (H, 4 July)

TV carriers of note in Asia:

48.260314 Thailand (H & M)

49.73736 warbly (H)

49.739577 Russian Far East (H, 13 June)

49.739583-7 Russian Far East (H & D)

49.746912 (H & D)

49.749909 Russian, 23 Hz sidebands (D)

49.750010 Russian, 18 Hz sidebands (D)

49.74946 Southern China (M)

49.7529-31 China, warbler (H)

49.757814 Shimanovsk, Russian Far East (H & D)

49.760418 Poronaysk, Sakhalin Is., warbly + 23 Hz sidebands, (H & D)

62.250001 Thailand (M, D) - Thai audio at 67.75

62.250021 Thailand (M, D) - Thai audio at 67.75

62.260093 Thailand (M, D)

65.75 C3 "siren" sthn China (M)

66.25 C3 offset (D)

67.251 C3 offset (D)

77.2396 R3 (8m) Yuzhno Sakalinsk (D)

81.75 A5 audio ( H & D)

83.75 C5 audio ( H & D)

Asian (mostly Chinese) radars: (* indicates new for me):

33.32 Biak, Indonesia, PRF 2144 Hz (received at Broome, Australia)

35.0 Beijing, PRF 440 Hz (D)

35.25 Tirupati, India, PRF = 430 Hz (H, D)

38.9 Mohe, PRF 430.3 Hz (D)

38.9 Beijing, PRF 520 Hz (D)

38.9 Hefei, PRF 429.6 Hz (H & D)

38.9 Wuhan, 430.0 Hz (H & D)

38.9 Fuke, Hainan Is., PRF 440 Hz (H & D)

40.8 Daejeon, South Korea, PRF = 440 Hz (H, very weak) *

43.5-43.7 1 Hz "tick-tick" radar, weak

46.5 unid, between Taiwan and Wuhan, PRF 3125 or 1562.5 Hz (H, M, D) *

47.5 Sanya, Hainan Is., PRF 651 Hz (H - short skip) *

48.2 Wuhan, PRF 525 Hz or 165 Hz (H - short skip, D very weak) *

50.5 Beijing, PRF 391, 781, 1562.5, 3125 Hz (D),

52.0 Chung Li, Taiwan, PRF 200 Hz. (H - short skip, D) *

53.1 Kunming, PRF 430 Hz, (H - weak, 14 Aug - 1st time detected this season) *

53.8 Wuhan, PRF 781 Hz (H, 14 Aug - 1st time heard this season) *

other txs:

55.07 & 55.73 FM NHK STL (H & D)

VHF indicators of note received in Florina, Greece:

30.000 Israeli "jumper"

31.975 MFSK tones, (musical), western Eu (UK?)

32.325 Israeli "jumper"

32.55 German meteor radar, PRF = 625 Hz

33.075 Israeli "jumper"

34.225 Russian "Woodpecker" & several other freqs 34-35 MHz.

35.425 Israeli "jumper" & data from french roadside assist.

36.375 Israeli "jumper"

36.975 radar, Persian Gulf?, PRF = 196 Hz

36.9 FMN, russian comms

40.53 Pakistan Snotel

46.5 radar, Persian Gulf?, PRF = 194 Hz

49.7396 several Russian TV carriers

49.740885 Elista?

49.746099? (3m offset)

49.747400 Moscow (240 kW, 2040 km)

49.757814 Glubokoye (Novosokolniki) (7 kW)

49.7604 several Russian TV carriers

49.825 Israeli "jumper"

49.99 radar, Persian Gulf?, PRF = 194 Hz

50.080 Jerusalem 6m beacon, 4X4SIX

59.244757 Krasnodar (27 kW)

OIRT FM (several channels).

Band 2 FM: Syria, Israel, Cyprus, Turkey, Algeria.
Home:Burkhardt Reuter RDR54D1 SDR V.415,
+ CLP 5130 Log P ant

Mobile: Comm Radio CR-1 + Sharman Skyscan ant, Pira P275

Tim Bucknall
Posts: 2304
Joined: 01 Oct 2014 14:55
Location: Congleton, often in the Peak District

Re: Tony Mann and Todd Emslie June - July, 2018 Northern Hemisphere Global Tuner Summaries

Post by Tim Bucknall » 07 Oct 2018 11:18

pretty amazing asian TV dx on band 1, i checked logs and there was a link up from Greece into Holkzkirchen, Germany on June 15th and into Austria on 27th June
Home:Burkhardt Reuter RDR54D1 SDR V.415,
+ CLP 5130 Log P ant

Mobile: Comm Radio CR-1 + Sharman Skyscan ant, Pira P275

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