Many thanks to SWLing Post contributor, Gary Debock, who shares a short report he originally posted on Facebook from the Rockwork 2020 Ultralight DXpedition:
Rockwork 2020 started off with a monster session, with S9 signals from the likes of 320-AI (Aitutaki, Cook Islands), 352-RG (Rarotonga, Cook Islands), 558-Radio Fiji One, 603-Radio Waatea, 1017-Tonga, 1107-Magic Talk and the new 1503-Gold.
The session was kind of wild, with three different sets of visitors asking about my gear setup at Rockwork 4 (typically during critical moments of live DXing, of course :-). Despite this both Longwave and Medium Wave featured great propagation to New Zealand, with the long range beacon 238-KT (Kaitaia) opening up the fun around 1225. Switching back and forth between Longwave and MW in a live DXing format wasn’t exactly ideal, and no doubt my long time DXpedition partner Tom R. could have really cleaned up on the South Pacific beacons this morning with his SDR and broadband loop setup. As it was I came away with 238-KT, 320-AI (a monster signal), 352-RG and 366-PNI from across the equator, with 558-Radio Fiji One probably having its best session ever at the awesome ocean side cliff (extended S9+ periods between 1300-1330).
I promised long term “Cliffhanger DX” partner Craig Barnes that I would go all-out to receive some exotic DX in his honor, and the Cliff more than cooperated.
The Longwave and Medium Wave DX this morning [Auguest 5, 2020] was phenomenal, and there are still two more days before Tom gets here. Hopefully these conditions will stick around!
320 AI Aitutaki, Cook Islands Great signal but shaky sounding CW tone at 1239– best signal ever at the Cliff:
352 RG Rarotonga, Cook Islands In an S9 snarl with 353-LLD (Hawaiian mega-beacon) at 1256:
558 Radio Fiji One Suva, Fiji Overwhelming S9 signal and ID’s both before and after an island music song at 1312:
1017 A3Z Nuku’alofa, Tonga Female Tongan in an S9 snarl with DU sports co-channel (2KY?) at 1253:
More New Zealand monster signals from yesterday morning, courtesy of the “Kiwi Cliff.” This place’s preference for New Zealand signals is wacky to the extreme!
603 Radio Waatea Auckland, NZ 5 kW S9 Maori island music // 765 followed by a female Maori chant at 1309:
1107 Magic Talk Tauranga, NZ 10 kW Meltdown level Kiwi conversation between host and lady caller at 1255:
1503 Gold Wellington/ Christchurch, NZ 5/ 2.5 kW The old Radio Sports’ Yankee-accented English (from Fox Sports Network) has now been replaced by rocking oldies, such as Phil Collins with powerful strength at 1307:
73 and Good DX,
Gary DeBock (DXing at the Rockwork Ocean Cliff near Manzanita, OR, USA)
7.5″ loopstick CC Skywaves, PL-380 & XHDATA D-808
12″ Longwave FSL + three new 8″ Medium Wave FSL’s
Thank you so much, Gary, for allowing me to share your reports on the SWLing Post. Many of us would love to experience mediumwave DXing from your Rockwood perch, but we’ll have to live it vicariously through your excellent reports! We wish you excellent DX!
Many thanks to SWLing Post contributor, Gary DeBock, for sharing the following guest post:
November 2018 Poipu, Hawaii Ultralight DXpedition
A Thrilling Sample of Forward Pacific Propagation
By Gary DeBock, Puyallup, WA, USA January 2019
In late September my wife and I stumbled across an outstanding 6-day Costco Travel package to the Aston at Poipu Kai on Hawaii’s Kauai island, the westernmost of the main Hawaiian islands (and closest to Asia). Included in the $2.3K cost was roundtrip airfare for two on Alaska Air (nonstop from Seattle both ways, with no “red-eye” flights), 5 nights at a gorgeous, beachside 2-BR condo with a patio area ideal for TP-DXing (and within easy walking distance to the island’s best snorkeling beach), a full sized new rental car and a $50 Costco cash card to use for a little spending $$. This was far and away the best travel bargain we have ever had to the Hawaiian Islands– and right in the middle of the DX season!
The location at Poipu Kai was at the extreme southeastern tip of Kauai Island, which offered a clear, unobstructed salt water path to Asia, ANZ, the Pacific islands and both North and South America. Unfortunately, it also offered a clear salt water path to the RF Zoo of Honolulu (more about that later).
Of course, before you can chase DX in Hawaii you will need to bring along some kind of radio and antenna– whether it is a hot-performing portable, an SDR along with a small broadband antenna or an Ultralight with a “Frequent Flyer” miniature FSL. Whatever you bring will need to go through TSA inspections both ways– so try not to get too complicated or extravagant. Fragile items can be taken in hand-carry luggage, so use this for radios, FSL antennas, digital recorders and anything else that could be smashed. Also keep in mind that many large motels and condos do not allow external antennas to be set up on their property– and most of them generate enough indoor RFI to make DXing indoors a lost cause. Before leaving for the Islands, be ready with a DXing plan that you know will work!
For me, TP-DXing with a modified CC Skywave SSB portable and TSA-friendly 5 inch (127mm) diameter FSL antenna in the large open patio area right outside our condo meant chasing enhanced DX right in the middle of a gorgeous beach side garden (click here to view on YouTube).
These 2-BR condo complexes were overbuilt somewhat, and the mainland owners of these condos badly need the tourist rental income to pay their mortgages. The competition for this rental income is high. As such, the cost per night for a stay at one of these newer 2-BR condos on Kauai is about the same as for a well-worn 1-BR motel room in Kona (on the Big Island).
So, what can a TP-DXer expect from the transoceanic propagation at Poipu Kai? First of all, there is so much enhanced DX coming from so many different areas of the world that you will need to carefully choose your priorities. What is your main DXing thrill? For me, it was chasing exotic Asian DX that was unlikely or unavailable at home in the Pacific Northwest. Unfortunately, when I tried to do this during the evening hours on Kauai (0700-1000 UTC) there was so much enhanced transoceanic DX coming from North and South America that the frequencies became a snarling maze of languages and heterodynes. During a check of 801 for kHz Pyongyang BS at 0922 UTC the frequency was completely hijacked by 800-Radio Transmundial in the Caribbean (near South America). The same thing was going on all over the band, with North and South American stations on the 10 kHz band plan fighting it out with Asians and Pacific Islanders using the 9 kHz frequency system. Honolulu QRM added its own distinctive touch to this jumbled fiasco, and eventually I was forced to concentrate on sunrise DXing sessions in order to track down any really exotic Asian DX. The bands were so much quieter during the sunrise sessions starting around 1500 UTC. Of course, if a DXer was mainly interested in North or South American DX in Kauai he could have made out like a bandit around local sunset, when the Asian and Pacific Island stations would not yet have faded in.
The Asian propagation to Kauai Island during the sunrise sessions was like having constant exposure to the best possible TP-DXing signals that ever show up on west coast ocean beaches– except that far more of Asia was in play. Big gun Middle East stations like 702-BBC (in Oman) can show up at decent strength, and not too many TP-DXers have familiarity with Arabic. Stations like 918-Cambodia which are rare DX on the west coast often thunder in at S9, and by necessity a DXer quickly learns the Vietnam parallel frequencies for its various networks. The Chinese propaganda blasters on 666, 783 and 909 pound in like locals, and a DXer needs to wait out their sign off times in order to receive anything exotic on their frequencies. The entire situation is a crash course in surviving and thriving in the middle of nonstop exceptional propagation, which can easily overload your abilities to sort out languages, stations and programming. Depending on your TP-DXing experience, you will either find this situation thrilling or bewildering.
If you have extensive TP-DXing experience on west coast ocean beaches you will probably feel like you are on Cloud Nine, but without this experience you will probably wonder where to start. The usual Asian big guns on 594, 747, 774 and 972 are either buried in Honolulu splatter or have trouble holding down their frequencies. Language recognition of Chinese, Korean and Japanese becomes essential in sorting out unfamiliar stations, and at least basic recognition of Vietnamese, Thai and Taiwanese is helpful. In addition, knowledge of exotic station frequencies is necessary before a DXer can hope to track these exotic stations down. Many exotic station frequencies (like 576, 594, 657, 693 and others) are jumbled with Honolulu splatter, and you need to know which ones are not (702, 729, 918, 954 etc.).The amount of TP-DXing experience that you can bring to the island is directly related to the results that you can expect from DXing on the island. Fortunately, because of two previous Hawaii trips and an April visit to the Cook Islands, I was able to track down some thrilling TP-DX on Kauai– 693-Bangladesh, 702-BBC (Oman), 729-Myanmar, 918-Cambodia, 927-AIR, 954-AIR plus Vietnam stations on 675, 702, 711 and 729. An S9-level 800-Radio Transmundial in Bonaire (next to South America) jumped over to 801 during an evening session. As an example of the outstanding ocean-enhanced propagation, for the first time ever in any DXpedition I was able to receive 7 transoceanic DX stations on one frequency alone (702 kHz).
Hawaiian station splatter is a major issue in Kauai, but depending upon the location of these pests, their signals may taper off just before TP propagation collapses (around 1705 in November). On my last session I was able to finally track down the 1000 kW Asian big gun 693-Bangladesh through wicked 690-KHNR (Honolulu) spatter, probably because the pest was farther into daylight than my more westerly Kauai location. The Hawaii pests on Maui and the Big Island also display the same behavior.
Propagation slowdowns on the west coast seem to be fairly irrelevant in Hawaii, with the only difference being S9 Australian and NZ signals showing up in the null of the S9 Asians. During regular sessions the big gun ANZ stations are usually around at S5 levels in the null of the Asians, but I didn’t really go after the DU’s during the Kauai trip. The Pacific island exotic stations on 621, 1017, 1098 and 1440 were usually at S9 levels about 2 hours after local sunset, but once again the North and South American transoceanic DX stations were turning their frequencies into a pretty wild fiasco. Originally it seemed like a great idea to have a straight salt water shot to all these areas, but be careful what you wish for– you just might get it 🙂
Finally, In consideration of the exceptional value of the Costco travel package and the superb transoceanic DX propagation prevalent on the Kauai beach, this 6 day Hawaii vacation proved to be as much of a lifetime hobby thrill as visiting the exotic Cook islands in April– at less than half the cost. My strong advice to anyone who is feeling bored with his AM-DXing hobby is to step out of your comfort zone, and try something really new. You can certainly chase DX at home or at the same flat ocean beach for decades, but you are unlikely to experience anything radically different from what you have already experienced. Breakthrough results require breakthrough innovation, exploration and experimentation, and the commitment to overcome all challenges until you get the results you desire.
DXing on Kauai Island makes it easy for you. All the comforts of home are within a 20-minute drive. A Walmart, Safeway, Costco and Home Depot are all in the local area, close to your gorgeous 2-BR beach side condo. You don’t even need to change currency or bring a passport (well, at least if you live south of the border). An outstanding snorkeling beach is a 5 minute walk away, and the “Garden Island” is one of the most beautiful in the entire Hawaiian chain, waiting for you to explore it in your new, full-sized rental car. What more could you ask for? So go ahead and take the plunge… and discover the exceptional thrill of forward Pacific TP-DXing!
Listed below are 94 transoceanic DX receptions made in Kauai with the related recording links, including stations in Oman, Egypt, Iran, India, Bangladesh, Myanmar, Cambodia, Thailand, Vietnam and many others. Sincere thanks is given to all who helped identify mystery stations, especially the Finnish DXers like Mauno, Mika, Jari L. and Jari S. with their awesome language identification skills. You guys really rock!
540 UnID-Spanish During a search for Samoa at 0738 on 11-6 this strong mystery Spanish station monopolized the frequency; both North and South America had a clear salt water path to my DXing site, making it tough to chase the Pacific islands after sunset https://dreamcrafts.box.com/s/vm0datfx40j4ie2mxyioby62in9v81wl
693 Bangladesh Betar Dhaka, Bangladesh, 1000 kW The super power exotic station finally broke through wicked 690-KHNR Honolulu splatter (10 kW at 113 miles) at 1639 on 11-8 with an apparent Islamic sermon (having mentions of “Allah” at 27 and 31 seconds) https://dreamcrafts.box.com/s/haye98bfrypbt1cdb1wgma2mx01wskpx
702 BBC Arabic Service A’Seela, Oman, 800 kW One of the big surprises of the DXpedition, this station was amazingly strong for the 8,586 mile (13,818 km) distance at 1604 on 11-6. Thanks to Mauno and Mika for the language and station investigation https://dreamcrafts.box.com/s/cwgqhpm3hy0thmthw4o018i7c70y0b8i
720 UnID-TP Mystery Asian station (apparently not in any east Asian language) mixing with the Chinese opera station at 1536 on 11-4; Mauno and Jari S. mentioned VOIRI (Iran) as a possibility, but the Tajik and Uzbek languages being broadcast around that time are tough to identify https://dreamcrafts.box.com/s/8l5utr5yxvybjzb2wrmaxvkoazuqmdf9
729 Myanma Radio Yangon, Myanmar, 100 kW Male-female speech in unique Asian language with clear mention of “Myanmar” at the 46 second point at 1541 on 11-4 (thanks to Chuck for deciphering). Unfortunately 576 and 594 were wiped out by Hawaii splatter https://dreamcrafts.box.com/s/yq7uqray3bq93a6zu76kb92enk46wvq6
729 Myanma Radio? Fading up all alone at 1625 on 11-4, this male speaker’s language and voice sound a lot like the ones in the previous recording (thanks to Bruce for language suggestion, and to Ken Alexander, a Canadian retiring in Thailand, for the improved audio file) https://dreamcrafts.box.com/s/24c46lrjjm2329x4e1h634u3m7swn3f5
783 Voice of the Strait Zhangpu, China, 600 kW A major propaganda blaster to Taiwan, this was the strongest Asian station during the trip. All kinds of carefully selected music were broadcast– pop, opera and even rap (which, as Chris Kadlec says, is banned in China but is fair game to broadcast to Taiwan, where it is popular). This big gun was totally immune to any propagation downturns, as demonstrated in this local-like sign off message at 1600 on 11-7, which was actually a DU-slanted morning https://dreamcrafts.box.com/s/6cbton9gqiqvqiwe6ewfc8u0aoztv4dm
800 PJB Bonaire, Netherlands Antilles, 440 kW Hijacking the 801 frequency at 0921 on 11-3 with an S9 signal and “Transmundial” ID at 6 seconds, this signal was typical of powerful North and South American stations that would mix with the Asian and Pacific island stations each evening in a wild competition. Received at 5.981 miles/ 9,627 km https://dreamcrafts.box.com/s/wiotqzpyghyinwl4o1f0c3vw2s1brtbw
819 KCBS Pyongyang, N. Korea, 500 kW This Asian big gun wasn’t quite as strong as it was in Kona, Hawaii a year earlier, and suffered some minor 830-Honolulu splatter. There was no sign of the Seoul area jammer, though. Its orchestral music was at good strength at 1606 on 11-3 https://dreamcrafts.box.com/s/zmtr8yqln8lqg9419a842u802w86pryx
909 CNR6 Quanzhou, China, 300 kW Another of the Taiwan-directed propaganda blasters, this one tended to play classical or choral music, and (like 783-Voice of the Strait) it was usually at overwhelming strength. This sign off message at 1602 on 11-7 has it all– S9+ strength, a “Shenzhou zhi Sheng” female-voiced ID at 35 seconds, and even a suggestive-voiced female from 49 to 58 seconds. Current sign off is at 1604 https://dreamcrafts.box.com/s/urhk66t4mqunezupi99r0red0pt4u7ub
918 ERTU Bawiti, Egypt, 10 kW Some awesome investigative work by Mauno determined that this modest signal at 1628 on 11-6 was Egyptian Arabic– one of the biggest surprises of the trip (otherwise it would have remained an UnID). Thanks for the extra effort! (8,921 miles/ 14,357 km) https://dreamcrafts.box.com/s/hhdwsw42ok5pcevh41amx9i7ln3cxmag
918 RNK Phnom Penh, Kampuchea, 600 kW One of the biggest stars of the DXpedition, with S9-level Kampuchean pop music almost every morning around 1630, burying Shandong completely. Apparently there is some special propagation between Hawaii and Southeast Asia around this time in early November. This music was at 1637 on 11-3 https://dreamcrafts.box.com/s/6ohs2orw3o1w5oiqyfyfxcczsrvykazq
927 AIR-South Visakhapatnam, India, 100 kW India news in English by female announcer at 1531 on 11-8 (mixing with China); with mentions of “also approved Indian…” at 9 seconds and “for India to express” at 25 seconds. Thanks very much to C.K. Raman of India for matching the recording to the AIR archives https://dreamcrafts.box.com/s/ozrw09zrlayks7nt3dxt95zeaibqmwd7
972 HLCA Dangjin, S. Korea, 1500 kW The Korean big gun played the part during most sessions, although the Chinese co-channel rarely left it alone. Here was a typical S9 signal at 1532 on 11-3, over the Chinese and accented English news co-channels https://dreamcrafts.box.com/s/v3ojq208x2pmrajzgrv5uqjh1cxu2xa7
972 UnID– AIR (East)? Accented English news from 10 seconds to 25 seconds in the following recording under HLCA at 1532 on 11-3, but there was no chance at the time to check the other AIR frequencies for a parallel. Unless Henan Economic was broadcasting in English this was most likely the 300 kW Cuttack transmitter in eastern India, with no other accented English possibilities on the frequency at the time https://dreamcrafts.box.com/s/v3ojq208x2pmrajzgrv5uqjh1cxu2xa7
1575 Iranian Jammer Causing severe interference to VOA-Thailand’s Bengali program at 1620 on 11-8, the “official” target of this prolific Jammer is Radio Farda in the U.A.E. The transmitter location is unknown, but likely distance to Kauai is around 8,000 miles/ 12,875 km https://dreamcrafts.box.com/s/pn1iwgnxq3vzgf5tj9b2ek0pb6p14qg3
As most transoceanic DXers are aware, the Hawaiian Islands offer an exceptional opportunity for AM-DXing hobbyists to chase enhanced, salt water-boosted signals from around the world. A recent Ultralight + FSL antenna trip provided all the DXing excitement anyone could hope for, with potent signals received from Asia, the Middle East, Oceania, and both North and South America. But this was all live DXing– one frequency at a time. Is a similar trip possible using a broadband loop antenna, and an SDR to record spectrum in one of the world’s most enhanced environments?
Normally such a challenge would be unthinkable, due to external antenna restrictions and the impossibility of carrying large loop antenna components on major airlines. But the unique situation at Poipu Beach on Kauai Island is definitely worth mentioning.
First of all, there is a fully stocked Home Depot store about 15 minutes away by car, offering PVC pipes, concrete bases and antenna wire– along with any tools necessary for antenna assembly. The 2-BR condos on the Poipu Kai beach are not part of a motel, but are individually owned and rented out by a management company for owners on the mainland. I never saw a single management company official on the property during the entire 6 days, except for the night when we checked into the complex management office (and he seemed to stay right there). Each morning I set up my FSL antenna on a 5′ PVC base in the large open patio area behind our condo from 0400-0700 local time (1400-1700 UTC), and never was questioned by anybody– let alone anybody from the management company. I’m pretty sure that small, breakdown versions of broadband antennas (such as the type that both Chuck and Tom have become skillful in setting up at the Rockwork cliff every August) would be fully acceptable during these sunrise enhancement sessions in Hawaii. There is excellent, free Wi-Fi available at the site for checking parallels and web streams, and fragile items like the SDR receivers and Wellbrook amps could be carried in hand carry luggage, similar to how I carry the Ultralights and FSL antennas. After such a broadband DXpedition the antenna parts could be probably be returned to the local Home Depot store, possibly with a chance of refunds.
Of course with a such a pioneering effort there will always be challenges and surprising discoveries, and a sense of optimism and adventure will prove to be most useful. But the opportunity certainly is there– as well as the chance to conduct a breakthrough DXpedition that could be of legendary success.
What an amazing report, Gary! I’ll admit, I’m just a wee bit envious of your Ultralight DXpedition locations! Thanks for sharing the details an, especially, your recordings! Inspiring!
Many thanks to SWLing Post contributor, Gary DeBock, who shares the following notes from his Cook Islands Ultralight DXpedition:
Sunset on the Cook Islands
Aitutaki Sunset DX
Aitutaki in the Cook Islands had some dazzling sunsets, and [my wife] loved to take sunset pictures with her new phone. Of course, I participated as well. As a result, sunset DXing was pretty rare while on the trip, although 7 USA mainland stations crashed the Kiwi sunset skip DXing sessions later in the evening around 0700 UTC. None of the usual Vancouver-Seattle-Portland-San Francisco TP-DXing pest stations made it to the South Pacific, though– and I didn’t miss them a bit! 🙂
610 KEAR San Francisco, California (5 kW at 4,610 miles/ 7,419 km) “Family Radio for the West Coast,” Christian religious format received at fair level at 0835 UTC on 4-12:
1170 KFAQ Tulsa, Oklahoma (50 kW at 5,642 miles/ 9,080 km) Strong signal over apparent DU English co-channel with “Coast-to-Coast” ID at 44 seconds; thanks to Richard Allen for confirming the broadcast of the program on the station at 0845 UTC on 4-12:
Checking out transoceanic DX propagation at an exotic ocean beach site can provide the hobby thrill of a lifetime– if a DXer is lucky enough to choose the ideal time, place and gear to make the chase. All of these fell into place in an amazing way during a 5-day trip to Aitutaki Island (2600 miles due south of Hawaii) with Ultralight radio gear, resulting in the reception of MW stations in India, Bangladesh, Mongolia and Cambodia– all at over 6,800 miles.
Because of extensive QRM from Australia and New Zealand the total number of Asian stations received was limited, but it was definitely a case of quality over quantity. Phenomenal gray line propagation around sunrise shut down Japanese signals almost completely, but boosted up those from the exotic countries in east and south Asia. Korean station reception was limited to the big guns, which was also primarily true for Chinese signals. Except for the ANZ pest QRM, the conditions seemed custom-designed for a west coast DXer to go after the exotic stations which rarely– if ever– show up in BC, Washington or Oregon (even though the Cook Islands’ distance to them is greater).
7.5 inch loopstick C.Crane Skywave SSB Ultralight
Ocean beach propagation at sunrise was strong enough to bring in both 693-Bangladesh and 1431-Mongolia at S9 levels almost every morning on my Ultralight gear, and allow both 657-AIR and 918-Cambodia to break through ANZ QRM on April 12th. No doubt many more of these exotic stations could have been logged except for Australian QRM on 576, 594, 872, 883 and 1566, but this only added to the thrill of the chase. The overall results were exceptional for a DXer using only a 7.5 inch loopstick Ultralight radio and 5 inch “Frequent Flyer” FSL– all designed to fit within hand-carry luggage, and easily pass through airport security inspections. Thanks very much to Alokesh Gupta, Hiroyuki Okamura, Jari Lehtinen, Chuck Hutton and Bruce Portzer, who all assisted in the identification of these stations!
657 All India Radio Kolkata, India, 200 kW (8,075 miles/ 12,995 km) Recorded by accident during a sunrise check of the Korean big guns at 1641 on April 12, reception of this longest-distance station went unnoticed until file review after return to the States. The female speaker (in the Bengali language) is the third station in the recording, after the female vocal music from Pyongyang BS and the Irish-accented male preacher from NZ’s Star network. Her speech peaks around 40 to 50 seconds into the recording. The isolation of the Star network at the 55 second point was done by the Ultralight’s loopstick, not by the propagation. Thanks to Alokesh Gupta for the language and station identification:
657 Pyongyang BS Pyongyang, N. Korea, 1500 kW Like most east Asian signals the N.K. big gun sounded pretty anemic in the Cook Islands. Its female vocal music at 1641 on April 12th shared the frequency with NZ’s Star network (Irish-accented preacher) and AIR’s female Bengali speaker:
693 Bangladesh Betar Dhaka, Bangladesh, 1000 kW (7,960 miles/ 12,810 km) Probably the biggest surprise of the DXpedition, with S9 signal peaks on 4 out of 5 sunrise sessions. Frequently snarling with the Oz pest 3AW, it usually managed a few minutes on top of the frequency each morning from 1630-1700 UTC. Exotic South Asian music was the usual format, and was very easy to distinguish from the talk-oriented format of 3AW (and other Oz co-channels). This first appearance at 1652 on 4-10 featured a “Bangladesh Betar” ID by a male speaker at 8 seconds into the recording (thanks to Chuck Hutton for listening):
774 JOUB Akita, Japan, 500 kW Oddly enough, this was the only Japanese signal making it to the island during the entire trip. Mixing with a goofy-sounding 3LO announcer at 1613 on 4-11, the Japanese female speech concerns a “doobutsuen” (a “zoo” in Japanese, similar to what the frequency sounded like with the 3LO announcer):
909 CNR6 Quanzhou, China, 300 kW Strong signal with CNR ID (1:08) and Mandarin speech by male and female announcers. NZ’s Star network was apparently off the air at the time, since it was a real blaster when transmitting:
918 RNK Phnom Penh, Cambodia, 600 kW (6823 miles/ 10,981 km) Breaking through the Shandong and Oz QRM at an ideal time to dominate the frequency, its sign off transmission with the National Anthem peaked just before the 1700 TOH on April 12. Female speech in the Khmer language and exotic music are featured just before the anthem (thanks to Hiroyuki Okamura and Jari Lehtinen for listening, and identifying the National Anthem):
Shandong RGD’s transmitters were poorly synchronized, resulting in the two-tone time pips at the 1700 TOH on 4-12 (during Cambodia’s National Anthem at 1:40, in the MP3 linked below). Although actually from two different transmitters, the sound effect sounds similar to that of a “cuckoo clock,” resulting in some initial confusion about their source:
1377 CNR1 Synchros (Various) Overall this was not only the strongest Chinese frequency on the band, but was the strongest Asian station on the band as well. Awesome S9+ signals were typical each morning, as with this male speech and music at 1622 on 4-12:
1431 Mongolia (Relay Station) Choibalsan, Mongolia, 500 kW This station was easy to receive on the first attempt, with very little competition on the frequency. It typically managed an S9 signal after 1630 daily with the BBC’s Korean service, which seemed to be broadcast during the peak sunrise enhancement time in Aitutaki’s ocean-boosted propagation. Here is BBC’s Korean male announcer at an S9 level at 1632 on 4-11, with the BBC interval signal at 47 seconds into the recording:
1566 HLAZ Jeju, S. Korea, 250 kW A very poor signal was typical during this trip, with the Chinese service barely showing up under 3NE and two other DU English stations (probably 4GM and Norfolk Island). Whenever 3NE was in a fade it had a chance, since other two co-channels were running very low power. Here is the latter situation, with the weak Chinese barely audible under the DU English snarl at 1641 on 4-12:
Amazing, Gary! Thank you for taking us along on your excellent Ultralight DXpedition. With a modest portable radio and a little antenna ingenuity, you’re enjoying some outstanding DX! You’re living proof of the point I was trying to make in a post yesterday!
Many thanks to SWLing Post contributor, Gary DeBock, who shares the following note about his recent Cook Island DXpedition:
The farthest DX received during the Cook Island DXpedition (on Aitutaki island) was 657-All India Radio in Kolkata, India, at 8,072 miles (12,991 km). Recorded by accident during a sunrise check of the Korean big guns at 1641 on April 12, reception of this longest-distance station went unnoticed until file review after return to the States.
The female speaker (in the Bengali language) is the third station in the recording, after the female vocal music from Pyongyang BS and the Irish-accented male preacher from NZ’s Star network. Her speech peaks around 40 to 50 seconds into the recording.
The isolation of the Star network at the 55 second point was done by the Ultralight’s loopstick, not by the propagation. Thanks to Alokesh Gupta for the language and station identification!
Many thanks to SWLing Post contributor, Gary DeBock, who shares the following notes from his Cook Islands Ultralight DXpedition:
Cook Islands (Aitutaki) Ultralight DXpedition from April 8-13
A gorgeous environment, with thrilling long range DX! Ruth and I took this trip as the 38th anniversary of out first meeting at Victoria Peak in Hong Kong (April 10, 1980).
DXing highlights were the reception of 693-Bangladesh, 918-Cambodia and 1431-Mongolia on the 7.5 inch loopstick C.Crane Skywave SSB Ultralight and 5 inch “Frequent Flyer” FSL antenna (designed to provide inductive coupling gain equal to that of a 4 foot air core box loop, but in a much more compact size).
693-Bangladesh 1652 UTC April 10 (mention of Bangladesh at 8 second point; thanks to Chuck Hutton for listening):