This page is under construction. I am summarizing my recent results (very slowly) here, especially on TV frequencies.
Each frequencies may have error about a few Hz. The 0.1Hz digit is for reference only, not trusted.
JE7IDA is located at 39N43 141E9. The map below shows 3-hop Es area from here.
A digital signal on 33.00MHz has been received in Australia and New Zealand when TEP opens. I can receive it from the morning to the evening weakly.
Todd Emslie had found a similar signal on 33.375MHz so I googled with a search word '33.375mhz'. The result was 17, 16 of them were about a Chinese law for the communications with fishing boats (An English translation of the law).
This law defines that 33.000MHz is a control channel in ASK; 33.375 and 33.425MHz are non-emergency call channels in MSK.
As many people have thought, Japan also may have some digital TX on 33.000MHz. I have to look up on the telecom's license search but with the old search system I had to search hundreds times so I could not. From April 2011, with a new search system I have to search only 47 times so I will do it soon.
Result of the search on 24 Nov 2011: I searched with the condition '32-34MHz' for 47 Japanese prefectures. The result was one item: '33.47MHz N0N 5W portable for prop test. Telecom Engineering Center'. Also I think JSDF is using these frequencies.
40.6896MHz has been an excellent indicator for Alaska. This signal comes from AMBCS, ... Anchorage is at 5,134km in QTF38 from here.
I received 40.689 633 5 on 05 JUN 2011. At 0730z S5, 0746z S5, 0805z S6, (took a dinner,) and at 0902z nil. Received audio:
Here is a reception list of 40.69 from 2002. The propagation modes were F2 until 2002, Es since 2006. Why I could not receive it with Es until 2006?
------------------------------------------------------------
YYMMDD JST- MHz--------- Remarks
------------------------------------------------------------
01 heard many times
020101 0923 40.69 S9+20
020102 0845 40.69 S9+
0920 40.69 S9+20
020103 0835 40.69 S7
020104 09 40.69 weak
020112 1013 40.69 S9+20
020113 0935 40.69 S3
020114 0841 40.69 S8
020116 0906 40.69 S8
020120 0955 40.69 S8
020122 0904 40.69 S8
020123 ? 40.69 S9+
020124 08 40.69 S8
020125 0852 40.69 S9+
020126 ? 40.69 S7
020127 1356 40.69 S3
020128 0833 40.69 S5
020201 1222 40.69 S7
020210 1016 40.69 weak
020215 1023 40.69 S7
020216 0848 40.69 S4
020217 ? 40.69 S6
020225 ? 40.69 S8
020318 1242 40.69 S8
020319 1202 40.69 S5
020328 0731 40.69 S1
021023 0758 40.69 S7
03 nil
04 nil
05 nil
060530 0837 40.69 weak, more than 2 hours
060611 1651 40.69 weak, in and out for 3 hours
060617 1342 40.69 weak
060624 1819 40.69 S0
070526 1301 40.69 S1
070627 1627 40.69 S0 for 2 hours
080523 1731 40.69 S1
080524 1604 40.69 weak
080610 1606 40.689 633 0 S1
1652 40.689 630 5
080611 0749 40.689 628 7 vy weak
080613 1602 40.689 631 8A vy weak
080614 0831 40.689 625 9 S1 f/o after 11
080617 1705 40.689 630 0 S1
080629 0858 40.69 weak
080723 1506 40.689 619 1 S0
090507 0808 40.69 S0 f/o before 10
090620 0745 40.689 629 5 weak
10 nil
110605 1630 40.689 633 5 S6
------------------------------------------------------------
Until ASO (analogue switch off) in USA, 55.23997-55.24000 Anchorage had been received often with 40.69, and sometimes 55.26000-55.26006 Fairbanks.
Here is a reception list of Alaskan A2 from 2000. I could not receive them until 2006 (same as 40.69), why? Also, why I could not receive them with F2?
------------------------------------------------------------
YYMMDD JST- MHz--------- Remarks
------------------------------------------------------------
; Anchorage KTUU-TV 100/10kW
060529 1536 55.239 994 9
060530 0738 55.239 994A
1033 55.239 993 7 weak
060611 1657 55.239 988 5 S0 60Hz
060617 1339 55.239 989 9
060624 1819 55.239 986 4 weak
070604 1355 55.239 971 7 S0
1407 55.239 973 0 weak
070627 1632 55.239 990 4 S0
080521 1406 55.240 005 1 vy weak, noise?
1430 55.240 011A vy weak, noise?
080523 1802 55.239 992 4 S1
080524 1604 55.239 991-4A vy weak
080602 1506 55.240 014 5 vy weak, noise?
1554 55.240 008 4 vy weak, noise?
080603 1713 55.239 997 1 S0
080606 1629 55.239 946 8 S0. 40.69 was not in so maybe a noise
080610 1617 55.239 991 4A
1642 55.239 990 7 vy weak
080613 1606 55.239 991 3A vy weak
080614 0832 55.240 017 0 vy weak, noise?
0834 55.239 994A
0909 55.239 991 9 weak
080617 1705 55.239 990A1
1722 55.239 989A6 vy weak
080629 0859 55.239 991 7 vy weak
080723 1510 55.239 934 6 vy weak, noise? 40.69 was in
090507 0750 55.239 995 4 weak
------------------------------------------------------------
; Fairbanks KATN 28.2/5.5kW
060529 1523 55.260 015 6
060530 0840 55.260 043 7 S0 60Hz
060611 1650 55.259 973 1 noise?
070604 1355 55.260 000 2 weak
080610 1630 55.260 004 0 faint, noise?
080614 0908 55.260 064 2 vy weak, noise?
090507 0905 55.260 052 7
------------------------------------------------------------
Comparison of their signal strength (vy weak, weak, S0-S9. 'o' means S0 or less):
------------------------------------------------------------
YYMMDD JST AMBCS KTUU-TV KATN
------------------------------------------------------------
060529 15 o o
060530 07 o
08 weak o S0
09 weak weak
10 weak weak
060611 16 weak o ?
17 weak S0
18 nil
19 weak
060617 13 vy weak weak
060624 18 S0 weak
070526 13 S1
070604 13 S0 weak
14 weak
070627 16 S0 S0
17 weak
18 weak
080521 14 ? noise?
080523 17 S1 weak
18 S1 S1
080524 16 weak vy weak
080602 15 noise?
080606 16 noise?
080603 17 S0
080610 16 S1 o vy weak
080611 07 weak
08 vy weak
080613 16 vy weak vy weak S0
080614 08 S0 o
09 S1 weak ?
10 S1
11 weak
080617 17 S1 o
080629 08 weak vy weak
09 vy weak
080723 15 S0 ?
16 ?
090507 07 vy weak weak
08 weak weak o
09 S0
090620 07 weak
110605 16 S5
17 S6
------------------------------------------------------------
My last reception of Alaskan A2 was on 7 May 2009. When the AMBCS 40.69 was heard again on 20 June 2009 I watched 55.24 very carefully but I could not detect any signals so I think the ASO in Alaska was on same date as the USA's ASO 12 June 2009.
But according to the wikipedia, ...
Fairbanks is at 5,213km in QTF33 from here.
Here is a frequencies list received here in 2011. It is remarkable that Auckland(?) comes here often, and sometimes alone on NZ1.
------------------------------------------------------------
YYMMDD JST- MHz--------- Remarks
------------------------------------------------------------
; Reefton??
110414 1213 45.237 026 9 weak warbly, noise??
------------------------------------------------------------
; Mt Studholme, Canterbury??
110403 1419 45.239 247 1 noise?
110414 1212 45.239 272 3 vy weak
------------------------------------------------------------
; Te Aroha
110402 1352 45.239 602 5 vy weak
1357 45.239 603 2 1411 S6
110403 1419 45.239 602 6
110404 1303 45.239 602 5 faint
110405 1148 45.239 604 3 S0 flutter
110406 1300 45.239 603 1A vy weak
1300 45.239 602 8A measured again
110407 1200 45.239 601 2 S1
110411 1222 45.239 602 4 faint
110412 1131 45.239 602 9 S1
110413 1240 45.239 602 3 S0
110416 1233 45.239 602 5 S0
110424 1537 45.239 602 0 vy weak
110504 1326 45.239 602 7 S0
------------------------------------------------------------
; Auckland?
110224 1435 45.249 883 2 vy weak
1500 45.249 882 1 vy weak
110406 1240 45.249 909 5 S2-3, V-sync 49.65AHz H-sync 15xxxHz(f/o before measurement)
1413 45.249 882 1 vy weak, noise?
110411 1331 45.249 880 5 vy weak, V-sync 49.65AHz?
110412 1216 45.249 882 6 vy weak
110414 1208 45.249 882 2 vy weak
110416 1247 45.249 880 2 faint
110418 1314 45.249 877 2 faint
110424 1556 45.249 882 3 vy weak
110502 1240 45.249 884 3 faint
1532 45.249 884 9 S0 V-sync 49.64AHz H-sync 15620.8Hz
1559 45.249 884 4 S0 V-sync 49.65AHz H-sync 15620.4Hz
110924 1327 45.249 886 6 vy weak
------------------------------------------------------------
110402 1353 45.249 944 3 faint, noise?
110403 1457 45.249 932 4 weak, noise?
------------------------------------------------------------
; Wellington
110224 1338 45.249 970 7 vy weak
1435 45.249 970 5 S0
1500 45.249 970 5 S0
110402 1353 45.249 975 6 faint 1406 S0
110403 1411 45.249 975 0 vy weak
110404 1254 45.249 973 3 vy weak
110405 1141 45.249 982 2 faint
110407 1328 45.249 982 2 vy weak
110411 1258 45.249 976 7 faint 1333 S0
110412 1131 45.249 975 0 S5
110413 1241 45.249 974 0 faint
110414 1209 45.249 973 4 faint 1207-1342 S0
110426 1216 45.249 986 5 weak
------------------------------------------------------------
; Mt Hedgehope
110402 1406 45.250 000 4 S0
110403 1444 45.250 003 3 faint
110404 1305 45.250 002 6 faint
110405 1134 45.250 002 0 faint
110411 1258 45.250 001 2 vy weak 1333 S0
110412 1131 45.249 993 5 faint ??
1135 45.249 999 8 faint
110413 1244 45.249 999 0 faint
110414 1208 45.250 004 0 S0
------------------------------------------------------------
110412 1135 45.250 012 0 received with 45.249 999 8
------------------------------------------------------------
110504 1332 45.259 928 2 faint, noise?
------------------------------------------------------------
; Nelson
110403 1440 45.260 002 2 vy weak
110405 1134 45.260 002 0
110412 1132 45.260 001 8 faint
110413 1241 45.260 001 4 vy weak
110414 1208 45.260 002 1 vy weak
------------------------------------------------------------
110409 1348 45.260 049 5 vy weak, noise?
1350 45.260 013 4 faint, a drifting down noise?
------------------------------------------------------------
110414 1208 45.260 278 0 faint, 1233 weak 50Hz, 1252 S1
------------------------------------------------------------
; Whakapunake
110402 1401 45.260 320 0 S1
110403 1416 45.260 320 6 vy weak
110404 1338 45.260 321 9 faint
110405 1153 45.260 315A S0 flutter
110407 1201 45.260 312 3 S1
110411 1256 45.260 321 3 vy weak
110412 1132 45.260 318 4 S1
110414 1243 45.260 317 0
110416 1302 45.260 318 7 weak
110504 1331 45.260 316 3 faint, noise?
------------------------------------------------------------
; Hikurangi
110402 1353 45.260 359 5 vy weak
1401 45.260 360 1 S1
110407 1355 45.260 361 3 vy weak
------------------------------------------------------------
2011NOV22 0154z: 3 stations were in close frequencies, 45.239359, 45.260364 and 45.260372.
2011NOV17: most carriers were modulated by 50.0Hz. 2011NOV22: most carriers were modulated by 49.6-49.7Hz.
E2 in southeast Asia: I heard 48.26032 48.26041 48.26046 in 2011 summer. No report of 48.24/48.25 in this year from JA.
[2011 NOV 11] I made a table below and realized that 48.26041 and 48.26046 were never received at the same time, so maybe these are from same QTH. You can see 48.26046 was used for several days then 48.26041 was used for severel days, alternately. 48.26032 is usually much weaker than 48.2604.
------------------------------------------------------------
YYMMDD UTC 48.26032 48.26041 48.260 46
------------------------------------------------------------
090507 48.260 321-2 48.260 464
090508 48.260 320 48.260 410
090513 48.260 320 48.260 409
090516 48.260 320 48.260 465-7
090518 48.260 462-6
090520 48.260 320 48.260 466
090522 48.260 407
090523 48.260 320 48.260 409
090525 48.260 409
090526 48.260 408
090527 48.260 320 48.260 408-9
090528 48.260 321 48.260 409
090529 48.260 320 48.260 465
090530 48.260 465
------------------------------------------------------------
090602 48.260 321-2 48.260 464-6
090603 48.260 321 48.260 462-6
090607 48.260 320 48.260 410
090608 48.260 320 48.260 410
090609 0105 48.260 456
0128 48.260 320 48.260 412
0712 48.260 320 48.260 409
090610 48.260 409
090612 48.260 409
090613 48.260 320 48.260 463-4
090614 48.260 320 48.260 463
090615 48.260 465
090617 48.260 464
090618 48.260 466
090619 48.260 320 48.260 412
090621 48.260 411
090622 48.260 410-1
090624 48.260 411
090626 48.260 464
090628 48.260 465
------------------------------------------------------------
090701 48.260 467
090708 48.260 409
090710 48.260 318 48.260 460
090712 48.260 318 48.260 464
090717 48.260 411
090718 48.260 478
090721 48.260 32 48.260 409
090722 48.260 318 48.260 410-1
090723 48.260 318
090725 48.260 319 48.260 462
090726 48.260 319 48.260 466-7
090729 48.260 319
------------------------------------------------------------
090812 48.260 319 48.260 462
090819 48.260 319 48.260 411
------------------------------------------------------------
090928 48.260 318
------------------------------------------------------------
------------------------------------------------------------
100518 48.260 321 48.260 463
100520 48.260 460
100521 48.260 324 48.260 460
100522 48.260 463
100523 48.260 465
100526 48.260 323 48.260 412
100527 48.260 414
100531 48.260 324 48.260 464
------------------------------------------------------------
100602 48.260 324 48.260 464
100603 48.260 463
100605 48.260 324 48.260 409-14
100607 48.260 411
100610 48.260 413
100620 48.260 326 48.260 415
100621 48.260 325 48.260 414
100624 48.260 412
100627 48.260 463
------------------------------------------------------------
100708 48.260 461
100711 48.260 464
100718 48.260 415
------------------------------------------------------------
100915 48.260 324 48.260 415-6
100923 48.260 462
------------------------------------------------------------
------------------------------------------------------------
110410 48.260 322 48.260 455
110414 48.260 321
110416 48.260 324-8 48.260 408
110427 48.260 321 48.260 458
------------------------------------------------------------
110502 48.260 460
110521 48.260 455
------------------------------------------------------------
110609 48.260 459
110613 48.260 320 48.260 407
110615 48.260 405
110621 48.260 320 48.260 404
110623 48.260 324 48.260 407
110624 48.260 320 48.260 402-6
110625 48.260 321 48.260 407
110626 48.260 406
110627 48.260 406
110628 48.260 321 48.260 404-6
110630 48.260 322 48.260 404
------------------------------------------------------------
110701 48.260 405
110704 48.260 407
110705 48.260 322 48.260 402
110710 48.260 403
110714 48.260 321 48.260 405
------------------------------------------------------------
110801 48.260 323 48.260 402-3
------------------------------------------------------------
110908 48.260 320 48.260 400
110911 48.260 396-8
------------------------------------------------------------
111027 48.260 390
111029 48.260 320 48.260 390
------------------------------------------------------------
111103 48.260 321 48.260 388-90
111104 48.260 320 48.260 389
111110 48.260 320 48.260 389
------------------------------------------------------------
[2012 JAN 12] I made a calendar below and found that in 2009 Phrae's frequency had switched before/after Friday. On 2009 JUN 09, both frequency were used (see the table above). In 2010, maybe same way.
49.2504... DPRK 49.7487... 2 or more carriers. One of them is DPRK, its audio at 56.26 49.7491AV... 2 or 3 carriers here. One of them is DPRK. Its audio 56.17 in 2013, not received in 2014 49.749 695-705... A high power station in Jewish Autonomous Oblast. Birobidzhan? 49.749 871... Amur? mod by 44.6/50/94.5Hz same to the next one? 49.749 878... Amursk or Solnechnyy?? raspy heard with Amure 49.749 958... Kamchatska?? Not sure 49.750A... Magadan? I cannot catch it but JL8GFB often reports a strong carrier from north 49.749 997... Blagoveshchensk?? Belogorsk???? 49.750 000... Okha vy noisy and sometimes raspy QTF0-10 49.750 002... Belogorsk?? Mod by 16.6Hz and 50Hz 49.750 0034-9... Progress/Raychikhinsk mod by 27.3Hz (Progress is about 20km east of Raychikhinsk) 49.750 0044A... Amursk or Solnechnyy?? mod by 21Hz heard with Amure 49.750 006... Khabarovsk 49.750 007... Belogorsk?? Blagoveshchensk???? 49.750 007A... Hainan in 2013, the strongest carrier with F2 prop, moves 49.752 602... Southern Amur Obl 49.755 2AV... (Yakutsk) 49.757 814... Shimanovsk 49.758 9... Amur? 49.7594... DPRK QSY from 49.9V? 49.760 392... Often received in 2012. QSY to 49.760399? 49.760 399... Nikolaevsk-na-Amure? 193km west of Okha. Often received weakly with 49.750000 Okha in 2013 49.760 400... Often received in 2011. QSY to 49.760392(2012), 49.760399(2013)? 49.760 418... Poronaysk, vy noisy, modulated by 45Hz and 118Hz QTF0-10 49.760 500... Ulan-Ude? Always received with warbly 49.7396
Novozhatkovo is not on 49.7604; I heard 70.64 / 72.20 Novozhatkovo but 49.76+/- was quiet at that time. Also if the warbler is from Vladivostok (120km south of Novozhatkovo) , it should be received at the same time with Novoahatkovo FM but I heard no warbler around 49.75.
49.744 793... a sideband of Poronaysk: 49.760418 - 0.015625 49.750 000 0A... high power in northern Sakhalin. Freq vy stable. A very noisy carrier 49.760 418... Poronaysk a very noisy carrier, modulated by 45Hz and 118Hz 59.239 593... Alexandrovsk-Sakhalinsky? 77.239 601... Sakhalin. Yuzhno-Sakhalinsk???? 93.239 583... Okha raspy, mod by 22/50Hz received with 67.16/69.20/89.0
Poronaysk: 1,068km QTF7.
110703 xxxx 49.7604 QTF roughly 0 (with 8el at JA7YAF) 120519 1931 49.760 417 6 S3 noisy, mod by 22/44/67Hz 120707 xxxx 49.7604 QTF roughly 10 (with 8el at JA7YAF) 120707 xxxx 49.7500 QTF roughly 10, very noisy
49.749?, 49.750, another 49.750?, 57.703(found on 27AUG2012), 57.749, 57.750, 65.750, 77.250
The warbler 49.750 have been thought from Vladivostok. It is at 859km in QTF299 from here. VK4CP could receive the 49.75 warlber 24hrs at Longkou, about 1808km QTF269 from here.
I do not have any directional antennas. When I went to a high school JA7YAF for '6m and down contest' I monitored 49.75 as follow:
110703 01xx 49.750A QTF roughly 270-280 (with 8el at JA7YAF)
I can hear the warbler 49.750 everyday in our Es season. It suggests (at least one of) the warblers is located in roughly 1,200-2,000km from here. Then another question arises: where is Vladivostok?
I found an old article on the warblers in my hard-disk:
I think this was the old Vladivostok: 11MAY2004 2225z 49.749MHz USB. This warbling carrier had been heard until 2007 or early 2008.
Since 19MAY2008 a new warbler appeared and it was heard everyday in the Es season: 30OCT2009 0912z 49.749MHz USB
Sometimes two warbler's were received at the same time: 05JUN2008 2345z 49.749MHz USB
I thought at first the Vladivostok transimtter was tweaked in late 2007 or early 2008 and the one of the new warbler's was Vladivosok.
But similar warbling carriers were received on C2 57.75, C3 65.75, C4 77.25 since MAY 2008: 06JUN2008 0719z 57.749MHz USB. I think these type carriers were never heard before 2008(need to check my log).
49.7552AMHz 2,602km QTF346
090607 0906 49.755 28A warbly. China possibility
090809 2338 49.755 1A wide warble. Maybe China
10 I was lazy...
110605 0709 49.755 196A faint, warbly?
110609 0428 49.755 399AV S1, warbly? China??
0448 49.755 396AV weak. China??
110610 1114 49.755 234AV weak
110703 xxxx 49.755 2A QTF roughly 330-340 (with 8el at JA7YAF)
110704 1033 49.755 197 S1, modulated by 40.3Hz
110723 0931 49.755 176 weak, modulated by 40.5Hz
110729 0903 49.755 18AV weak
110730 0042 49.755 198AV weak warbly
Note: There is a 49.7550-49.7555A with a large warble presumed from China.
Shimanovsk had been drifting in 49.7580-49.7584MHz, but it is always within 1Hz now.
49.757814-49.757815MHz in 2011 1,716km QTF327
110703 xxxx 49.757 8 QTF roughly 330-340 (with 8el at JA7YAF) 120519 1925 49.757 814 3 S7 a bit dirty
49.750005 in 2011.
49.7500073-49.7500074 on 25 FEB 2012.
This is written in 2012: I heard Korean audio on 56.25 only once. I think this had northern Korean accent, but China may have a few Korean station.
2013: A north Korean audio was often heard on 56.16-56.17, its video freq was 49.7491AVMHz.
2014: A nort Korean audio was heard on 56.25 once with strong video 49.7487. No audio was heard 56.16-56.17 with 49.7491 so far (on 11 Jun 2014).
Until some years ago, I can hear 2 weird carriers at around 49.7396MHz. Now only 1? Also there was a wowing carreir at 49.7604, but it disappeared several years ago.
video audio (47.7) 53.70 DPRK? 1998 48.75 55.25 CHN 2008 (49.25) 55.75 CHN 2001 49.25 (55.75) DPRK? 2012 49.7491 56.25 DPRK 2013 49.7594 (56.26) QSY from 49.9V? (49.88) 56.38 CHN 2002 49.9V (56.4) DPRK? 2012 (49.9) 56.40 DPRK 1994 50.50 (57.00) a video carrier 2007 50.528 57.03 CHN 2012 50.55 57.05 CHN Henan? 2009 50.618 57.12 CHN Jiangsu or Anhui? 2001 / audio 2002 / video carrier 2003 50.67 (57.17) a video carrier 2007 50.745 57.245 CHN 2012 50.75 (57.25) a video carrier 2009 (50.75) 57.25 CHN 2009 50.755 (57.255) a video carrier 2002 same to 50.75? (50.775V) 57.275V CHN 2002 (50.8A) 57.3A CHN 2002
48.75070-48.75081 video / 55.25 Chinese audio had been often received in JA. I heard them for 9 days in 2007, but my last reception was on 29 JAN 2008, so it is presumued to QSY/QRT.
49.2504 have been heard often when DPRK TV/FM are in.
A raspy carrier moduleated by 50Hz is drifting around 49.88-49.95. It have been received with other DRPK TV/FMs. A Japanese DXer heard an audio on 56.40 in 1994.
070520 1335 50.550 043 4 S1 50Hz 070520 1336 50.500 773 4 S1 50Hz 1-2Hz warbly? 070623 1856 50.549 898 5V S7 50Hz 090701 1431 50.525 650V S2 50Hz, 1432 50.525643AV drifting down 120519 1946 50.527 746V S5 49.97Hz, Chinese audio at 57.025A 120519 2018 50.527 797V S2 drifting up 120519 2038 50.527 778V S1 ... (heard many times)
070518 1640 50.665 733 S1 50Hz
070623 1854 50.745 572 1 S7 50Hz a bit dirty, heavy QSB / 57.25 nil 070627 1430 50.745 660 3 S7 090809 1207 50.744 492 8 S2 50Hz 120606 1136 50.744 713 6 S7 a bit dirty / 57.245 nil 120606 1211 50.745 S6 / 57.245 Chinese audio S2 120610 1410 50.744 659 8 S4 50.0Hz 120610 1931 50.744 602 3 S1
Music or voice in AM or FM mode have been sometimes received around 50.1MHz in JA, in southeast Asia, and sometimes in VK(also in ZL?). In 2011 autumn (OCT/NOV), 50.080 was received in JA2,3, sounded like Vietnamese or something.
Some of them may be a subharmonics of FM transmitters on 100.2MHz?
I found a CD/DVD player used by my father transmits its audio on around 50.24AVMHz.
Not complete list from my log
Date JST MHz mode
2001--2005 * 50.02 NBFM JA3? Talking, heard several times
2009OCT23 15 50.025 FM (Asian pirates was heard by VK4FP, strong)
2005MAY20 2101 50.030 (`WRM' into JA5)
2014APR15 1658 50.0380 AM conversations among 2-3 stations, SE Asia?
* * 50.04 NBFM JA3? Talking, very active
2005APR14 16 50.040 FM (Asian 2-way FM was heard by ZL4, full quieting) JA3?
2002OCT28 12 50.050 AM (VU-BC into JR6? AIR harmonic 7150*7)
2009NOV25 16 50.050 FM (Chinese FM two ways into VK3SIX)
2011NOV04 14 50.080 FM (A broadcastiong station, music and talk (not standard BY language) into JA2, could be somewhere around Thai or Vietnam)
2004MAY18 12 50.092 CARR (a strong carrier with QSB into JA8)
2004JUN02 13 50.107 FM (HL in FM into JA3)
2004NOV11 10 50.100 AM (Music into JA2 QTF100 QSB)
1031 50.099992 AM Music S3, 1032 bee-poo-bee-poo, 1032 test tone?
2004NOV29 15 50.105 FM (Chat in Korean lang heard in JA3)
2005APR23 18 50.100 FM (HL?-group chatting heard in JA3 vy strong)
2005APR23 19 50.100 (BY-stn into JA2 R5)
2006APR26 13 50.100 (BY-chatting into JA3 Es QTF260)
2005MAY20 21 50.100 (HL-chat into JA3)
2006MAY10 15 50.10 FM (Chinese chatting heard in JA3 loud QTF250)
2006JUN08 21 50.108 (BY into JA8 strong QTF290) rag-chewing?
2013OCT21 1513 50.100 FM weak FM talking, not broadcast?
2014 * 50.0-50.15? CARR a very raspy carrier when P5 in, P5-TV?
2009MAY13 11 50.150 FM (Chinese into JA1 in FM)
2010SEP28 14 50.150 AM (Russian pirates? into VK4 in AM mode)
When I have a propagation to JA3, I can hear several un-id stations which are talking from their automobiles on 50.04 and 50.9-54MHz. 50.04 was once heard in ZL!
55.249 7... DXET's old frequency. Nothing in for these years 55.249 977... low power TX near Manila, received always with DWWX 55.249 987... DWWX Manila 3412km QTF221 55.250 006... TV5 DXET Davao? a very high power TX in southern Philippines 3951km QTF208
With Es propagations, 55.249 987 DWWX is much stronger than any other carriers. With F propagations, 3 or more carriers are strong around 55.250 000. 55.250 006 is the most frequent one.
TV5 unknown QTH have been received often in JA1-6, some reception of them were thought from Davao but not identified.
There had been a 55.2512AMHz modulated by 60Hz with a fast warble until 2008 but I could not catch it in 2009. I found 55.2524AMHz a warbly carrier in 2010 and heard it for several times in that year. It had a similar warble as 55.2512 but was always weak (maybe because of too bad Es year).
I heard 55.271-55.277AVMHz drifting carrier modulated by 60Hz a few times in 2011, instead of 55.2524. Do these come from same QTH?
11???? ???? 55.26 the first reception, maybe a sideband of 55.27
110607 0854 55.258 97AV warbly, drifting up, mod by 60Hz. Maybe a sideband of 55.2747
0910 55.276 13AV S6 drifting
0928 55.276 57AV S1
0959 55.276 24AV S1
1037 55.273 35AV S1
1043 55.272 90AV S0
1054 55.272 82AV S0
1110 55.273 23AV weak
1128 55.273 44AV vy weak
1150 55.273 31AV faint
1208 55.273 71AV faint
110613 0917 55.276 51AV warbly, drifting
1025 55.274 91AV
110624 1001 55.271 40-1AV S1 drifting
After this I heard this several times.
11 Sep 2011: I heard 55.25245A warbler, freq stable, which is similar to 55.2524 in 2010 mentioned above. This is the 1st reception in this year.
18 Sep 2011: 55.25246A S6 warbler, freq stable, modulated 60AHz and 15.7AkHz.
20 Sep 2011: 55.25242A warbler, freq stable.
2012: I cannot find the warbler/drifter in this year.
I think this is form Korea, but have to look up my log again to make sure.
110517 0858 55.250 602 S0 mod by 60Hz
110520 0721 55.250 594 weak
2316 55.250 599 weak
110620 0332 55.250 572 weak
110623 0224 55.250 570 weak
0245 55.250 567 S0 mod by 60Hz
110624 0219 55.250 581 S0
110625 0956 55.250 579 weak
110626 0906 55.250 578 vy weak
2337 55.250 578 vy weak
2358 55.250 576 S1 mod by 60Hz
110627 0012 55.250 578 weak
1001 55.250 582 weak
1023 55.250 579 weak
110725 0341 55.250 570 S0 alone on A2
110726 0233 55.250 595 weak
110727 0335 55.250 574 S0 mod by 60.0Hz
110818 0335 55.250 563 weak
110908 1102 55.250 564 very weak, alone on A2
There was a dirty carrier presumued from Korea, but it disappeared several years ago.
AFN Korea stopped its analogue TV transmission on 1 MAY 2012. Nothing have been heard on around 55.25 from Korea this year.
This is an old article. I think this is same carrier as '55.275MHz aDrifter'.
I found 55.26112AMHz a warbly carrier S1 modulated by 50Hz at 0912z on 13 May 2011. It drifted to 55.26164AMHz at 0923z. At the same time 55.250005MHz Philippine was S5, other A2/E3 and E2 was not in. 57.75 C2 and JA6YBR/b was in.
My second reception was as the following. A DXer in JA0 also could receive it. At that time E2/E3/E4 were not in, but A2 Philippines video carriers were S0-1.
110626 0846 55.260 08AV weak, mod by 50Hz, the carrier sometimes stops?
0850 55.260 95AV
0903 55.261 81AV
0909 55.262 27AV
0919 55.263 13AV stayed around this freq for a few minutes
0926 55.262 90AV
0935 55.261 82AV
0947 55.260 98AV
0949 55.261 09AV
1000 55.260 20AV
1008 55.260 39AV
1028 55.258 95AV weak 50Hz
1038 55.258 63AV
1044 55.257 42AV
1050 55.257 76AV
1054 55.257 25AV
1108 55.255 17AV
1118 55.253 81AV faint
1122 55.253 02AV
1127 55.252 03AV faded out
15 55.2502A-55.2576A found 'sweeper' for the first time
17 55.253 0AV 'sweeper' changed to 'drifter'
1807 55.254 4AV
1815 55.253 4AV
1819 55.253 1AV
1822 55.254 02AV
1829 55.254 33AV S1
1839 55.254 70AV S1
1844 55.254 80AV S1 +49A +119A +181A +235A -49A -118AHz
1846 55.254 84AV S1 +50A +123A -51AHz
1859 55.255 15AV S1
1933 55.255 57AV S0
1938 55.255 99AV faint
1942 55.256 33AV f/o Manila is still S6
19 Manila faded out
26JUN2011: I caught a 'sweeper' 55.25010A-55.25764AMHz a little before 07z...
1JUL2011: It was always weak but I managed to find out today that it was modulated by roughly 50AHz, 120AHz, 15.75AkHz, is it not E3 but same as the A2 drifter?
58.9-59.4V... several drifting carriers are received at the same times, maybe from DPRK 59.019 9... (DPRK) 59.125 8... (DPRK) 59.239 59V... Amur? warbly or raspy, obviously not from Sakhalin 59.239 593... Sakhalin. Alexandrovsk-Sakhalinsky? No warble 59.249 973... DPRK? Not Russian spectrum 59.250 019... Dal'negorsk 70.04 71.90 102.4 59.250 022... Kamchatska? 59.260 9... vy noisy, received with 49.7396V, 49.760500, 2-hop? 59.261... not often but always strong, warbly, Primorskiy?(Mikhaylovskiy 865km??)
This table contains a part of weird carriers received here and reception reports from JA DXers. Some of these may be a same carrier or a sideband of another carrier.
video audio 56.38 (62.88) DPRK? CHN?? Received with many weird carriers 06JUN2012 58.9982V (65.50) DPRK? 2010 2009 59.00 64.85-64.98 Korea Central TV ID 2009 59.003 (65.50) DPRK? often received in 2009-2010 / modulated by 51.8Hz 27JUN2010 59.006 (65.51) DPRK? 2012 59.020 (65.52) DPRK? Often received when DPRK FM in 59.028V (65.53) DPRK? drifting up 59.0294 (65.53) DPRK? mod by 50.8AHz 2009,20JUN2010 59.03V DPRK? drifting down 08JUL2009 59.032 (65.53) DPRK? 09AUG2009 59.037 (65.54) DPRK? 2012 2010 59.051 (65.55) DPRK? 2012 2010 59.0548 (65.56) DPRK? 27JUL2011 59.095 (65.60) DPRK? 09AUG2009 59.1015 (65.60) DPRK? 09AUG2009 59.119A (65.62) raspy? 59.1247 (65.62) DPRK? 09AUG2009 59.126 (65.63) DPRK? 2012 59.1302 (65.63) DPRK? 09AUG2009 59.215A (65.72) DPRK? vy raspy 09AUG2009 / raspy mod by 51.8Hz 08JUL2009 59.240V DPRK? drifting up fast, 59.309 30min later 59.244V DPRK? drifting up fast, 59.334 46min later 59.243 (65.74) DPRK? 2012 59.2453 (65.74) DPRK? 01JUL2009 59.2458 (65.74) DPRK? 09AUG2009 59.248 (65.75) DPRK? 2011 59.2487 (65.75) DPRK? 09AUG2009 59.250 (65.75) DPRK? 59.251 (65.75) DPRK? 2012 59.2514 (65.75) DPRK? 09AUG2009 59.25248AV (65.75) ? 59.254 (65.75) DPRK? 2011 59.275V (65.78) DPRK? 2012,2011,20JUN2010 59.283V (65.78) DPRK? 2011 20JUN2010 59.2917 (65.79) DPRK? 49.8AHz 20JUN2010 59.3AV DPRK? Drifting up more than 0.1MHz 59.3038 (65.80) DPRK? warbly 09AUG09 59.3073 (65.81) DPRK? 20JUN2010 59.315 (65.82) DPRK? 09AUG2009 59.3273 (65.83) DPRK? 20JUN2010 maybe same carrier as 59.3073? 59.3489 (65.85) DPRK? 59.363V DPRK? drifting up fast 24JUN2010 (59.46) 65.96 DPRK audio received by Mr Hasegawa on 4Jul2012
060521 1715 65.733820-3 audio at 72.23 110805 1706 71.76 very weak audio, Chinese? Didn't check the video frequency (65.26MHz?) 120826 1635 67.266 881 S1 mod by 50.0Hz clean spectrum
66.75 video / 73.25 audio have been often received in JA but I can hear nothing on around these frequencies here in my 10+ years reception history. It probably means that it is located around 2100km or more from here.
A DXer Mr Hasegawa in Nagoya supposes that it is located in around Anhui province, Hangzhou, Shanghai or so. I can hear very east part of Anhui here so I think it is located in around central or west of Anhui province.
77.239 579-590... (Arsen'ev) warbly 77.239 601... Sakhalin. Yuzhno-Sakhalinsk???? 77.249 53-54V... Birobidzhan?? 77.249 954... Khabarovsk Very strong dirty just 50Hz lower than usual on 3,5JUL2012 77.249 992... Okha FM modulated like 49.750000. 67.16 69.20 89.0 93.239631 77.250 000... Kamchatska?? 77.250 002-3... Birobidzhan? A bit dirty 77.250 004... Khabarovsk Very strong dirty with 71.24/72.02/72.80 / returned 6JUL2012 77.250 006-7... Petropavrovsk-Kamchatskiy dirty, sometimes mod by 38Hz. Always only 69.68/71.90 are heard in OIRT band, also with 99.249990 77.250 007... Belogorsk? A bit dirty but mod by 50Hz only 77.250 007-8... Ust'-bol'sheretskiy? Mod by 7.3-7.5Hz, heard before/after Kamchatskiy 77.250 009... Vladivostok? 69.68 71.84 (and Zeya) only in in OIRT band 77.250 08AV... Obluchenskiy?? Birobidzhan???? with a large warble 77.260 399-419... Blagoveshchensk sometimes very noisy. Always with 71.30/72.86/73.64/88.7 77.260 4V... Medium power warbly
85.239 593-6... Zeya warbly, with 66.68 68.24 85.247 3-5... Svobodnyy very raspy with 69.92 71.84 103.4 85.247AA... Svobodnyy heavily raspy 85.233-85.264A since 13JUN2012 85.249 1-2... DPRK possibility 85.249 238... a bit dirty 85.249 85-86... China 85.249 918 85.250 002-5... Bidzhan a video carrier modulated with a Russian audio audible in AM/SSB mode 70.07 71.93 85.250 011 85.250 014 85.250 724 85.252 597... 50Hz a bit dirty, Russia?? 85.253 004... ? 85.253 277... DPRK possibility. 50.0Hz clean carrier 85.253 598 85.255 431.... ? 85.260 406... Dal'negorsk?? Received with 70.04 71.90 (102.4) 85.260 407... Chegdomyn raspy and noisy. Always received with strong 70.16V 71.96
Note: Khabarovsk Radio / Chegdomyn had been on 70.16 until 2010, 70.17 in 2011, and is now on 70.16 in 2012.
J1- 91.239990MHz, J1o 91.250000MHz, J1+ 91.260010MHz.
------------------------------------------------------------
YYMMDD JST- MHz--------- Remarks
------------------------------------------------------------
080717 1938 91.239 956 7 vy weak
------------------------------------------------------------
080717 1938 91.239 980 4 vy weak
------------------------------------------------------------
; JOIR-TV TBC Tohoku Hoso, Sendai, JA7 10kW 165.9km QTF189
060916 1958 91.239 990 0 S8
080717 1938 91.239 990 0 S7
110619 2224 91.239 990 0 S9+10
110620 1955 91.239 989 8A S9+30
------------------------------------------------------------
110620 1956 91.249 675 9A weak
110619 2225 91.249 733 3
------------------------------------------------------------
; ABS AkitaHoso, Kakunodate relay, 3W 54km QTF256?
110724 2359 91.249 865 1 weak
------------------------------------------------------------
080717 1939 91.249 925 4 weak
------------------------------------------------------------
060916 1959 91.249 960 4 S0
------------------------------------------------------------
110620 1956 91.249 994 7A S0
------------------------------------------------------------
; JOAK-TV NHK General TV Tokyo, Tokyo, JA1 50kW? 468.7km QTF195
; JOHR-TV HBC Hokkaido Hoso, Sapporo, JA8 10kW? 374km QTF29
060916 1959 91.250 000 0 S1
080611 2238 91.250 000 0 S0
080717 1939 91.250 000 1 S7 FM stations in Tokyo were strong at that time
110619 2225 91.249 999 9 S1
110620 1956 91.249 999 4A S0
110724 2358 91.250 000 1 S1 JOAK-TV
110724 2359 91.250 000 1 S0 JOHR-TV?
------------------------------------------------------------
; JOIF-TV KBC Kyushu Asahi Hoso, Fukuoka, JA6 10kW? 1,180.0km QTF238
090615 0855 91.250 000 1 S2
090725 1832 91.250 001 1 S4 QSB. Or Kagoshima?
1916 91.250 000 8 S5 QSB. Or Kagoshima?
2011 91.249 999 9 S5 deep QSB. Or Kagoshima?
090811 1131 91.249 999 8 Fukuoka?
090912 1612 91.250 000 1 Fukuoka?
------------------------------------------------------------
; JOCF-TV MBC Minami-Nihon Hoso, Kagoshima, JA6 5kW? 1,315.9km QTF229
080611 0929 91.249 999 9 or Tokyo, Sapporo?
090530 0815 91.250 000 9 strong with QSB
090617 1413 91.250 000 6 S6 QSB
090621 1248 91.249 999 7 S7
090701 1515 91.249 999 8 S5 QSB
090715 0937 91.250 000 1 S7 QSB
090725 1832 91.250 001 1 S4 QSB. Or Fukuoka?
1916 91.250 000 8 S5 QSB. Or Fukuoka?
2011 91.249 999 9 S5 deep QSB. Or Fukuoka?
110620 1214 91.249 999 9 S5
------------------------------------------------------------
060916 1959 91.250 091 3 weak
------------------------------------------------------------
060916 1959 91.250 103 6 weak
------------------------------------------------------------
110619 2225 91.250 401 0 S0 dirty?
110620 1956 91.250 474 6A weak warbly?
------------------------------------------------------------
060916 2000 91.259 882 4 S0
080717 1940 91.259 873 3 vy weak
------------------------------------------------------------
; NHK General TV Hiroshima, Fukuyama relay, JA4 1kW?
; MBC Minami-Nihon Hoso, Kagoshima, China relay, JA6 100W?
110620 1215 91.259 993 6 S1 not Nagasaki
91.260 009 4 S1 or Nagasak
------------------------------------------------------------
110619 2227 91.260 008 3
------------------------------------------------------------
; JOGR-TV RAB Aomori Hoso, Aomori, JA7 5kW? 126.4km QTF339
060916 2000 91.260 010 1 S0
080717 1940 91.260 010 1 S0
110619 2227 91.260 010 2 S0
------------------------------------------------------------
; JOAC-TV NHK Educational TV Nagasaki, Nagasaki, JA6 1kW? 1,275.6km QTF236
090912 1610 91.260 010 0 Nagasaki?
110620 1215 91.260 009 4 S1 or Fukuyama, China?
------------------------------------------------------------
060916 2000 91.260 019 9 S0
------------------------------------------------------------
'China' in Kagoshima is pronounced as 'CHEE - NAH'.
93.238 404... DPRK? 50.0Hz clean 93.239 3... DPRK? 93.239 583... Okha raspy, mod by 22/50Hz often received with 67.16/69.20/89.0 93.239 631... low-medium power in Amur or so. A bit dirty but not raspy 93.246 3... DPRK? 93.246 5... DPRK? 93.249 983-4... Khabarovsk dirty 71.24 72.02 72.80 93.249991 on 2JUL2012 -93.250 011? 93.249 990... Petropavrovsk-Kamchatskiy 69.68 71.90 77.250007(dirty) 93.250 005... Amursk? With very strong 66.92 Mayak, 68.72 R. Rossii 93.250 010-1... (Shimanovsk) a bit dirty with 66.92 R. Rossii, 68.72 Mayak 93.250 019... Russia? vy raspy, 93.249 969? 93.250 1-3... Russia 93.250 1-3... High power TX in DPRK. 99.75 Korean audio 2 stations in DPRK? 93.253 383... DPRK? 93.253 916... (Dal'nerechensk) 67.22 69.32 93.257 809... Blagoveshchensk always fades in/out with 71.30 72.86 73.64 88.7 93.260 401... Low-medium power in Amur? rare 93.260 416AV... (Vladivostok) heard with 69.68 71.84 88.3. Huge number of MS bursts at night
100624 1612 93.239 582 5 S7 raspy, with 67.16/69.20
110525 1646 93.239 5A S5 raspy, with 67.16/69.20 strong
110704 1920 93.239 580 9 weak raspy, mod by 22/50Hz, with 67.16 weak
110710 1852 93.239 583 3 weak raspy, with 67.16
110714 1646 93.239 6 S1 raspy, with 67.16
110715 2036 93.239 584 6 S1 raspy, with 69.20
2148 93.239 582 1 S5 raspy, with 69.20
110727 1501 93.239 582 8 weak raspy, 67.16/69.20 nil
1634 93.239 632 5 S1 raspy, maybe 93.2395825, 67.16/69.20 nil
1947 93.239 582 6 S1 raspy with 67.16/69.20
2008 93.239 6 S1 raspy, with 67.16
2034 93.239 577 5 S1 with 67.16/69.20
110729 1602 93.239 583 2 raspy, with 67.16
1607 93.239 6 S0, wtih 67.16
1641 93.239 6 S1, with 67.16
110816 1707 93.239 583 1 weak raspy
110817 0905 93.239 583 1 S0 raspy, mod by 22/50Hz
110826 1603 93.239 582 7 weak raspy mod by 22Hz with Sakhalin 66.08 70.40 72.08
120528 1336 93.239 583 4 S1 raspy mod by 22/50Hz, with 67.16/69.20
120606 1837 93.239 579 8 S1 raspy, with 67.16 72.08
090701 1246 93.239 271 7 S0 50Hz DPRK??
100620 0829 93.250 169 9 S2 50Hz. R2v, R4v quiet, 77.25(C4?) vy weak, no UA0-FM
1010 93.250 110 7 S1 50Hz. R2v S1, 77.25 S4(C4?), R4v quiet, no UA0-FM
1233 93.250 126 0 S6 50Hz. R2v S1, 77.25 S5(C4?), R4v quiet, a few UA0-FM
120606 1036 93.250 248 0 S0 50.0Hz. MUF towards Russia was 59MHz
1124 93.250 244 5 S5 50.0Hz clean carrier
1141 93.250 239 7 S5. North Korean audio S7 at 99.75
I think I could caught C6v 168.25, C7v 176.25 for the first time in 2012.
------------------------------------------------------------
120610 1308 168.250 156 7 S1 QSB
1316 168.249 969 5 weak mod by 50.0Hz
1321 168.250 073 7 S0 QSB mod by 50.0Hz
1329 168.250 234 2 S6 50Hz
1331 176.249 971 S3
176.250 003 S3 mod by 50.0Hz
120611 1030 168.250 008 2 weak
1035 168.250 007 6 vy weak
1041 168.250 006 8 weak
------------------------------------------------------------
Es
------------------------------------------------------------ 070618 1745 175.249 975 6 S0 60Hz Korea 070618 1746 175.242 286 1 noise? 080622 1036 175.250 008 7 S0 60Hz Korea ------------------------------------------------------------
Masked by JOQG-TV NHK Genaral TV Morioka 3kW 21.2km QTF199 171.260010MHz
GW and Tr
------------------------------------------------------------ ; JOHB-TV NHK Educational TV Sendai 10kW 070620 2025 177.239 990 3 110619 2212 177.239 990 1 S1 110620 2006 177.239 989 8A S1 ------------------------------------------------------------ 110620 2007 177.249 505 6A S0 ------------------------------------------------------------ ; NHK General TV Morioka, Ninohe relay 250W? 070620 2027 177.250 003 4 110619 2213 177.250 005 1 S1 110620 2007 177.250 005 0A S1 ------------------------------------------------------------ 110620 2007 177.250 440 3A weak ------------------------------------------------------------ ; JOTC-TV NHK Educational TV Aomori 5kW? ; NHK Educational TV Akita, Yuzawa relay 90W? 110619 2215 177.260 006 8 faint ------------------------------------------------------------ 070620 2027 177.260 621AV ?? ------------------------------------------------------------
Masked by JODF-TV
------------------------------------------------------------ ; JODF-TV IBC Iwate Hoso 3kW 21.2km QTF199 070618 1746 183.249 999 6 070618 1746 183.249 999 9 070620 2019 183.249 999 6 070620 2019 183.249 999 9 110619 2210 183.249 999 8 S9+30 110620 2008 183.249 999 6A S9+30 ------------------------------------------------------------
Nil
NOTE: J7 (188-194MHz) and J8 (192-198MHz) have a 2MHz width of overlap 192-194MHz. The reason have not been a famous story, almost completely forgotten (I read about this only once in my 42 years life).
The IF frequency of Japanese monochrome TV sets was decided to 27MHz video, 22.5MHz audio in 1953, and 26.75 / 22.25MHz in 1960. For example, to view J4 170-176MHz the local oscilator generated 198MHz (= 171.25 + 26.75) so if J8 was allocated to 194-200MHz the 198MHz LO would cause a interference to J8. Also J5 and J9, J6 and J10, J7 and J11 had a same problem.
J11 have been at 210-216MHz. After the US Forces Japan's RADAR on 220MHz+/- QRT, J12 was allocated to TV. It was discussed which would be better to allocate 214-220MHz to avoid LO interference from J8 or 216-222MHz to avoid the overlap.
In Japanese analogue color TV sets, the IF have been 58.75/54.25MHz so these interferences never happened, but because of the overlap J7 still could not be used near the J8 transmitters. For example Tokyo tower had a very high power J8 TX, and also Morioka in JA7 (450km from Tokyo tower) had a high power J8 TX. So J7 was almost never used not only in JA1 but in almost all JA7 prefectures excluding the northest prefecture Aomori which is located at more than 500km from Tokyo, 100km from Morioka.
I am located in northern Morioka, at 469km north of Tokyo tower, and I could catch J8 from Tokyo tower often in summer with a casual home TV system.
Reference: Intermediate Frequency of V.H.F. TV Receiver by Kazuo Suzuki, in Japansese
Masked by JOQC-TV
------------------------------------------------------------ ; JOQC-TV NHK Educational TV Morioka 3kW 21.2km QTF199 070618 1746 193.250 000 0 070620 2019 193.250 000 0 110619 2207 193.250 000 0 S9+10 110620 2009 193.250 000 4A S9+10 ------------------------------------------------------------
GW
------------------------------------------------------------ ; NHK General TV Morioka, Ichinoseki relay 25W? 070620 2021 199.239 982 7 110619 2204 199.239 981 7 S0 110620 2010 199.239 982 0A S0 ------------------------------------------------------------
The ASO in Japan was done on 24 July 2011.
I monitored 91.25MHz (RX was set to 91.249MHz USB).
At 23:59:00JST(1459z), the red line NHK Tokyo 91.250 000 1MHz stopped.
Next, at 23:59:29JST another 91.250 000 1MHz (presumed HBC Sapporo) stopped.
At 23:59:56JST, a weak carrier on 91.249 865 1MHz stopped
(ABS Akita Hoso / Kakunodate? 3W, 54km over high mountains QTF256).
At 00:00:00JST(1500z) their licenses expired.
Weak sidebands were by J1- Tohoku Hoso 91.239 990MHz in Sendai S9.
You can see the program-off of 6 Tokyo analog TV stations at 1200JST (0300z) and the c/off of 6 Tokyo analog TV stations at 2359JST (1459z) on YouTube. From left to right on the upper side, J1 NHK General Tokyo, J4 NTV, J6 TBS, and lower side, J8 Fuji TV, J10 TV Asahi, J12 TV Tokyo. Note: Tokyo had also J3 NHK Edu. Tokyo, J14 Tokyo Metropolitan TV, J16 University on the Air.
In three prefectures severely damaged by the mega-earthquake and tsunami, Iwate, Miyagi and Fukushima, the ASO will be delayed to 31 Mar 2012.
I live in Iwate so I can use my local NHK (Japan Broadcasting Corporation, Japanese national public broadcasting organization) JOQG 531kHz and JOQG-TV 171.260 010MHz as frequency references for more several months.
I measured JOYR San-yo Hoso 1494.0000kHz. JOYR has 6 relay stations on the same frequency so their frequencies are synchronized within +/- 0.1Hz to reduce QSB.
| YYMMDD | JOYR(kHz) |
|---|---|
| 120113 | 1494.0001 |
| 120117 | 1494.0000 |
| 120118 | 1493.9999 |
| 120119 | 1494.0000 |
| 120120 | 1494.0000 |
| 120121 | 1493.9999 |
| 120122 | 1493.9999 |
| 120123 | 1493.9999 |
| 120125 | 1494.0001 |
| 120127 | 1494.0000 |
| 120201 | 1494.0000 |
| 120202 | 1494.0000 |
| 120205 | 1494.0001 |
FFT error is around 0.1Hz so I think JOQG is accurate.
I bought a GPS module with a 10kHz output Jupiter TU60 for 38 Euro (free P&P) from Hongkong. It arrived here on 23 FEB 2012.
The 10kHz output is connected to the ground terminal of IC-706mkIIG via 1k ohm.
Assuming that JOQG and JOQG-TV are accurate, a harmonic 200.000MHz of 10kHz output was measured as 199,999,999.9Hz (FFT error was +/-0.1Hz).
I waited until the module was locked to 4 GPS satellites. The 50th harmonic of the 10kHz output was read as 500.001 4kHz on IC-706mkIIG, and JOQG was read as 531.0014kHz, so the true frequency of JOQG was 531.000 0kHz(+/-0.1Hz). Similarly, JOQG-TV was measured as 171.260 010 0MHz(+/-0.1Hz).
My results are completely based on great works and suggestions by DXers including:
When I hear something new, I post about it on these sites below:
Other links:
I found that my e-mail server at ictnet.ne.jp often rejects e-mails written in English as SPAMs. I stopped the SPAM filter in Sep 2012 so I think I can now receive all e-mails to me. If you sent me some e-mails before and you don't have my reply, will you please send your e-mails again.