Date   

Re: New Design (2019) FSL Antennas

Tony Magon
 

Hi all


An amendment in regard to the capacitors in both circuits

They are 1n5 rpt 1n5 (1.5nf)

73

Toy VK2IC


April Hong Kong Ultralight DXpedition-- 711-765 kHz Loggings & MP3's

Gary DeBock
 

     Hong Kong has had more than its share of excitement recently, but three months ago the excitement for me was trying to sort out a huge maze of unfamiliar AM-DX stations. A wicked combination of RFI, overcrowding, 5 Chinese dialects and 6 Southeast Asian languages seemed to confirm the pessimistic predictions of other DXers, while attempts to set up a gain antenna on a public beach inevitably resulted in a growing throng of curious Chinese onlookers.
     Finally a 7.5 inch loopstick CC Skywave Ultralight (in the attached photo) was pushed to the max in both daytime DXing trips to Macau and Cape D'Aguilar (the "Rockwork" of the Orient) and also outside the security window of our downtown 12th floor apartment. The souped-up Ultralight was up to the challenge, tracking down AM-DX from Japan (729-JOCK) to Djibouti (1431-Radio Sawa), including diverse reception of about 80 Southeast Asian stations. With such useful information for upcoming trips to Hawaii and other Pacific venues, who could ask for more?

 
711  V.O. Kuanghua   Hsinfeng, Taiwan   250 kW   This is a major Mainland-directed propaganda station in Taiwan, but during daytime DXing in both Macau and HK's Cape D'Aguilar it couldn't hold the frequency down over an UnID Filipino station. This Macau recording at 0637 on 4-4 has a Tagalog radio drama dominant over Kuanghua's Chinese  https://dreamcrafts.box.com/s/pn0nv6bbaadtt6ahobq6s14d82krhaj7

711  VOV1   Can Tho, Vietnam   500 kW   Strong signal with female Viet speech on the HK waterfront at 1425 on 4-7; generally dominant over Kuanghua after sunset  https://dreamcrafts.box.com/s/ue2modz1ihqtzw72b5kzauri5k6mpsvb

711  UnID-Philippines   Dominating the frequency around local noon in Macau with Tagalog radio drama at 0637 on 4-4, the 10 kW DZVR in ideally-positioned Laoag city (on the northern tip of Luzon) would seem like the most likely possibility over hundreds of salt water miles  https://dreamcrafts.box.com/s/pn0nv6bbaadtt6ahobq6s14d82krhaj7

720  BCC   Taichung, Taiwan   10 kW   Dominant with Chinese female speech through 518-NAVTEX noise at HK's Cape D'Aguilar at 0830 on 4-6, for some reason this station was a no show in Macau, where DZSO was the only (weak) signal  https://dreamcrafts.box.com/s/1ya16wh49lpmasypvjxn3xq4k9h5tnfk

720  DZSO   San Fernando, Philippines   5 kW   Weak but all alone around local noon in Macau at 0640 on 4-4, this recording features a Tagalog-speaking lady with an energetic "Radio Bombo" ID at 23 seconds  https://dreamcrafts.box.com/s/vdjoibaihbf65bgzobh948y871jxwg5r

720  UnID-Chinese   Male-female Chinese speech on the HK waterfront during a sunset skip session at 1428 on 4-7; unknown if this is BCC or a mainland station (CNR2 in Fujian?)  https://dreamcrafts.box.com/s/vqjlx2cmwo8bz915qylmg8iaxkvtz7wp

720  UnID-South Asian Music   Another HK waterfront signal after local sunset with female Hindi-type vocal music dominant on the frequency at 1426 on 4-7. No identifying details, but AIR in Chennai would be in propagation at the time  https://dreamcrafts.box.com/s/0gfknh9ewvwr0cbnbv2jmklg3bcfiftz

729  Jiangxi RGD Synchros   Jiangxi, China   Poorly coordinated network with multiple Chinese echoes during HK waterfront DXing at 1429 on 4-7  https://dreamcrafts.box.com/s/3djjvzjqnrztpc3ym4pkyw4pyx0e7b1s

729  JOCK   Nagoya, Japan   50 kW   Japanese female speech at modest level during an early morning session at 1911 on 4-7; oddly enough, this was the only reception of Japan during the entire Hong Kong trip  https://dreamcrafts.box.com/s/l1o9cus8r96n3huv75w9itnde8v549ol

729  VOV2   Dong Hoi, Vietnam   200 kW   Male Viet speech // 702 dominant over Jiangxi synchros and UnID music during HK waterfront DXing at 1430 on 4-7; the 702 parallel is included from 12 to 24 seconds  https://dreamcrafts.box.com/s/84jlphrpll7st87i3i8gv2tlh7akl9gd

729  UnID-Asian   Female vocal music continuing through Jiangxi's Chinese and VoV's Viet speech during sunset skip DXing on the HK waterfront at 1431 on 4-7; the 100 kW Myanma Radio would seem like a strong possibility  https://dreamcrafts.box.com/s/6uamzuthim1cy4j2otrf1944trdug6ab

738  BEL2   Penghu, Taiwan   100 kW   The west coast TP regular blasted in during daytime DX in both Macau and HK's Cape D'Aguilar, managing one of the most overwhelming signals ever received over hundreds of miles in bright daylight. The HK cape signal with female vocal music at 0845 on 4-6 was so strong it was throwing splatter on 729 and 747, and features the 1143-BEL3 parallel from :52 to 1:39 (which was even a shade stronger)  https://dreamcrafts.box.com/s/73t1nkfw91uc13pc2vd2cw69kki91g6g

The same prolific station was potent on the Macau waterfront as well at 0648 on 4-4, managing this 7-minute stretch of Taiwan Fisheries' diverse programming around local noon  https://dreamcrafts.box.com/s/nrlqunwdtcgak1vn91e0649u7yb58ngy

738  UnID-Chinese   Two Mandarin Chinese stations mixing together at good strength at 1612 on 4-6, one of which is surely BEL2 from Taiwan (likely the one with pop music, building up strength). As for the male speaker starting off the recording, there are many Mainland possibilities but seemingly no identity clues. The 2 kHz heterodyne is almost certainly from the no-show 740-VOV2  https://dreamcrafts.box.com/s/50398exipewc6vuyanzw2o6e7fmvcwwz

747   CNR1   Shanwei (Guangdong), China   10 kW   Seemingly the most likely source of this Macau daytime DX signal // 756 around local noon at 0652 on 4-4; there is a weak UnID showing up late in the recording, possibly the station showing up under CNR1 at HK's Cape D'Aguilar (below)  https://dreamcrafts.box.com/s/22n1gpv3elep64y7ck5w6l3akutdwfwv

747  UnID-Mandarin Chinese   Fair strength female voice under CNR1 at HK's Cape D'Aguilar at 0839 on 4-6; probably Guangdong RGD in Zhanjiang  https://dreamcrafts.box.com/s/4z87mlrnj8b3jw12t85gw1bnq8lholbl

756  CNR1   Zhuhai (Guangdong), China   50 kW   Macau daytime DX semi-local had an overwhelming signal over a weak UnID around local noon at 0655 on 4-4, unlike the wild situation on this frequency at HK's Cape D'Aguilar  https://dreamcrafts.box.com/s/kng3vmpj6k3h2sobxhpbm6uw6jolcdy1

756 UnID's-Chinese   This frequency was a madhouse during daytime DX at HK's Cape D'Aguilar at 0841 on 4-6, with the Zhuhai CNR1 station greatly reduced by the solid rock cliff. Taiwan's 20 kW Cheng Li chih Sheng is almost certainly in the wild mix, but since China only has CNR1 on this frequency, two of the stations are likely to be poorly synchronized CNR1 relays with the same (but delayed) programming  https://dreamcrafts.box.com/s/k7l85rbtz7xmwsk5olbdw3vypkdg2gr2

765  UnID's-Chinese   Another wild mix at 1523 on 4-4, featuring at least two male Chinese speakers from different stations and an UnID music broadcaster. 600 kW CNR5 from Fujian is likely in the mix, as well as Shaoguan RGD in Guangdong. There are no clues from the music station, but four Philippine stations are on the frequency  https://dreamcrafts.box.com/s/bokzjlytegctpzentd1hhcq5iky87xnw

(TO BE CONTINUED).    


Re: Building a 3" Baby FSL

Al Short
 

Ccrane TCF. with FSL antenna

Has anyone experimented using a FSL with the Ccrane TCF?  I woul imagine either
inductively coupling an FSL to the large Ccrane pickup or hardwiring the FSL output to the amp module might well produce interesting results.


Re: Building a 3" Baby FSL

jbarbre52@...
 

Thanks Gary. That is exactly what I was looking for.
73 de Jim Barbre KB7YSY


Re: Building a 3" Baby FSL

Gary DeBock
 

Hello Jim,

<<<   I am interested in building a 3" Baby FSL antenna and have a few questions.    >>>

Glad to help! The 3 Inch Baby FSL project is essentially a rework of the 3.5 Inch "Frequent Flyer" FSL antenna, for which a 22-page "Heathkit-like" full construction article is posted at  http://www.mediafire.com/file/pnfm8909c77zjoy/3.5inch-FF-FSL.doc/file

<<<   I just ordered 24 ferrite rods, but they are 8mm x 140mm, slightly longer than the ones Gary used. What impact, if any, will that have on the final product? Can I use a hack saw to shorten them? Is that even necessary?    >>>

No, it is not necessary! Using the 140mm x 8mm rods will give you a slightly longer and slightly more sensitive FSL than using the 120mm x 8mm rods (which are no longer available), but cutting the rods would give you nothing except a slightly shorter FSL.

<<<   What kind of material separates the rods from the PVC pipe and how thick is it? What kind of material separates the Litz wire from the rods? How is the Litz wire connected to the variable capacitor? (Any extra resistors or capacitors involved? Where on the variable capacitor do the wires connect?)   >>>

You can get a lot of information about the type of materials used by reviewing the full construction article linked above, but the 3" Baby FSL uses a slightly smaller rubber plumbing coupler (Fernco 1056-125 instead of Fernco 1056-150), some rubber locking tabs to prevent ferrite rod movement, and a much higher performance variable capacitor (384P model from Oren Elliott Products, or Mike's Electronic Parts).

Depending on the interest in (and demand for) the 3 Inch Baby FSL antenna another full construction article may be written for it alone, or possibly an addendum will be added to the article linked above. Although the larger and heavier 3.5 Inch "Frequent Flyer" FSL is slightly more sensitive than the 3 Inch Baby FSL, the smaller antenna puts up an extremely close fight because of its superior variable cap, which turns it into a compact DXing firecracker.

73, Gary DeBock (in Puyallup, WA, USA)

 
 
 


Re: 3 Inch FSL Tecsun PL-380 Model

Gary DeBock
 

<<<    I have also made the same mistake when fixing mine of gluing both sections together. Mine will be used until it dies.   >>>

Thanks Paul,

Actually the PL-380 will work fine after you do this until it needs internal servicing-- at which point both you and the PL-380 will be out of luck.
You would be surprised how many of these PL-380 emergency glue jobs are on borrowed time around the world.

Gary



 


Re: 3 Inch FSL Tecsun PL-380 Model

Paul Blundell
 

Thanks for the information and follow up post on this.

I have also made the same mistake when fixing mine of gluing both sections together. Mine will be used until it dies.

On Fri, Jun 28, 2019 at 7:49 AM Gary DeBock via Groups.Io <D1028Gary=aol.com@groups.io> wrote:
For those interested in the resolution of this problem, Jerry's 3 inch FSL PL-380 model was received here yesterday, but it was not repairable. There were several issues, but the deal breaker was the orange antenna frame being glued across both the front and back cabinet sections (contrary to the article's instructions at http://www.mediafire.com/file/w0gcek56f6aq7kr/3_Inch_FSL_Tecsun_PL.doc/file
so the PL-380 could not be opened up for servicing. When "supercharging" any Ultralight, avoid the temptation to do this!

Fortunately I had enough spare PL-380 parts and 250/46 Litz wire on hand to take the 8 Russian 100mm bars and build a new 3 inch FSL Pl-380 model for Jerry, as in the attached photo with the old model. (Sorry that I can't do this for others).

73, Gary DeBock (in Puyallup, WA, USA)



--
Paul


--
Paul - Moderator
UltralightDX


Building a 3" Baby FSL

jbarbre52@...
 

I am interested in building a 3" Baby FSL antenna and have a few questions.
I just ordered 24 ferrite rods, but they are 8mm x 140mm, slightly longer than the ones Gary used. What impact, if any, will that have on the final product? Can I use a hack saw to shorten them? Is that even necessary?
What kind of material separates the rods from the PVC pipe and how thick is it? What kind of material separates the Litz wire from the rods? How is the Litz wire connected to the variable capacitor? (Any extra resistors or capacitors involved? Where on the variable capacitor do the wires connect?)
Thanks for the info.
73
Jim Barbre
KB7YSY


Re: 3 Inch FSL Tecsun PL-380 Model

Gary DeBock
 

For those interested in the resolution of this problem, Jerry's 3 inch FSL PL-380 model was received here yesterday, but it was not repairable. There were several issues, but the deal breaker was the orange antenna frame being glued across both the front and back cabinet sections (contrary to the article's instructions at http://www.mediafire.com/file/w0gcek56f6aq7kr/3_Inch_FSL_Tecsun_PL.doc/file
so the PL-380 could not be opened up for servicing. When "supercharging" any Ultralight, avoid the temptation to do this!

Fortunately I had enough spare PL-380 parts and 250/46 Litz wire on hand to take the 8 Russian 100mm bars and build a new 3 inch FSL Pl-380 model for Jerry, as in the attached photo with the old model. (Sorry that I can't do this for others).

73, Gary DeBock (in Puyallup, WA, USA)


TECH: Big Litz 1162/46 and 1200/46 tested on HP Q meter

Steve Ratzlaff
 

Here are the results of testing 1162/46 Litz (pink color, from eBay seller Ming) and 1200/46 Litz (blue color, from eBay seller in Canada, same as blue 1200/46 Litz from Chinese eBay seller) on my HP 4342A Q meter. Each was wound as a solenoid on a low loss styrene plumbing coupler. As many turns as would fit on each coupler was wound--the 1200/46 being slightly fatter, one or two turns fewer were wound for that coil. 163.5 uH for the 1162/46; 152.5 uH for the 1200/46. The Q meter's variable cap goes to 475 pF, so about 590 kHz was the lowest frequency tested that would resonate the coil.

In summary, the 1162/46 Litz has higher Q up to about 1300 kHz--quite a bit higher, especially at the low end. Above that both coils are closer in Q.

Note this is purely an "unloaded Q" test, for the coil all by itself. For use in a Ferrite Sleeve Loop there of course are other factors--the Q of the ferrite material and surrounding material, the Q of the tuning capacitor, and probably other factors. I can't positively say a higher Q coil leads to a better-performing (more sensitive and/or sharper tuning) FSL, but theory says that is so. Gary DeBock's A/B comparison tests on real signals with real FSLs indicates this is so, as well.

73,

Steve Ratzlaff AA7U

1162/46 Litz coil, unloaded Q test

590 kHz 1652 Q

700 kHz 1676 Q

800 kHz 1650 Q

900 kHz 1598 Q

1000 kHz 1524 Q

1100 kHz 1435 Q

1200 kHz 1322 Q

1300 kHz 1152 Q

1400 kHz 797 Q

1500 kHz 827 Q

1600 kHz 873 Q

1700 kHz 813 Q

-------------------------------------------------------

1200/46 Litz, unloaded Q test

590 kHz 1190 Q

700 kHz 1266 Q

800 kHz 1293 Q

900 kHz 1296 Q

1000 kHz 1274 Q

1100 kHz 1228 Q

1200 kHz 1122 Q

1300 kHz 1052 Q

1400 kHz 924 Q

1500 kHz 847 Q

1600 kHz 808 Q

1700 kHz 756 Q


Re: New Design 3 Inch Baby FSL Antenna Demo Video

Michael.2E0IHW
 

Very useful hint, Mikek. Thanks!
Michael UK


On 27/06/2019 15:54, lamontcranston17 wrote:
  I just wanted to mention my method of soldering large count litz wire.
 I set a spoon on my electric stove, then melt a large drop of solder
in the center of the spoon,
"guessing" just under 3/8" across. I dip about 3/8" to 1/2" of the litz
into rosin flux and then
I put that into the melted solder on the spoon. Basically a mini solder
pot. I have had great success,
with thoroughly saturated litz. Once you have a good tinning job on the
litz, it's fairly easy to solder.
 A couple of notes; I usually set the other end of the spoon on
something to make the level. There is a
lot of heat coming from the burner so it is a little trick to get in and
out before your fingers get to hot.
My spoon, I thing it's stainless steel. I also have put some flux in
with the solder on the spoon,
and you may need to experiment with the burner temperature setting.
 I have used this for at least ten litz wires and I'm happy with it.
---
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Re: New Design 3 Inch Baby FSL Antenna Demo Video

lamontcranston17
 

I just wanted to mention my method of soldering large count litz wire.
 I set a spoon on my electric stove, then melt a large drop of solder
in the center of the spoon,
"guessing" just under 3/8" across. I dip about 3/8" to 1/2" of the litz
into rosin flux and then
I put that into the melted solder on the spoon. Basically a mini solder
pot. I have had great success,
with thoroughly saturated litz. Once you have a good tinning job on the
litz, it's fairly easy to solder.
 A couple of notes; I usually set the other end of the spoon on
something to make the level. There is a
lot of heat coming from the burner so it is a little trick to get in and
out before your fingers get to hot.
My spoon, I thing it's stainless steel. I also have put some flux in
with the solder on the spoon,
and you may need to experiment with the burner temperature setting.
 I have used this for at least ten litz wires and I'm happy with it.

                                              Mikek


Re: Two More Radiwow R-108 Models Received

Max Italy
 

New version has solved some problems on the MW?
see here

https://imgur.com/a/c5dzHGx


Salt Water Daytime DX from the Philippines-- 5 kW at 683 miles

Gary DeBock
 

Mark Connelly's doctrine of getting right up to the salt water edge was proven again during file review of daytime DXing in Macau-- a strange gambling enclave located 50 miles west of Hong Kong.

On 720 kHz a weak Tagalog station was received on the Macau waterfront all by itself in bright daylight around 2 PM local time, although Macau is over 500 miles away from any part of the Philippines. To make the story even stranger, the receiver was a CC Skywave Ultralight-- although it did have a 7.5 inch loopstick going for it.

The weakfish signal was recorded and forgotten until this morning, when a dubious attempt was made to dig out any identifying clues which might determine which one of the three 720 kHz Filipino stations showed up at such long range. After listening to the weakfish recording about 10 times I was amazed to determine an energetic "Radio Bombo" ID by the Tagalog-speaking lady at 23 seconds into the recording, which matched the network ID description of 720-DZSO, a 5 kW station in San Fernando, Luzon, Philippines-- at 683 salt water miles (1,099 km) in bright daylight. How can you get luckier than that?  https://dreamcrafts.box.com/s/vdjoibaihbf65bgzobh948y871jxwg5r

Daytime DXing at the salt water edge during the Hong Kong trip proved to be essential in sorting out the maze of unfamiliar signals, providing not only some awesome Taiwan recordings but several 500+ mile Philippine stations making the trip in bright daylight. Receiving so much international DX in bright daylight was a bizarre feeling, with even 549-VOV2 showing up as a crowning touch at HK's Cape D'Aguilar (according to Alan Davies).

Gary DeBock (DXing in Hong Kong from April 2-8)


Re: Signal Strength Display on Ultralight Receivers

Phil Pasteur
 

Absolutely no arguments from me on this last bit. But really, I use the meter on the radio to point an antenna, or compare received signal strengths for logging. So an indication of r-f voltage across the antenna terminals is ok. In fact this information is the endgame for me for those purposes. Still it is interesting to understand that the readings we are seeing on any of these meters is simply an interpretation of the field intensity.


Re: New Design 3 Inch Baby FSL Antenna Demo Video

Gary DeBock
 

On Tue, Jun 25, 2019 at 06:50 AM, Gord Seifert wrote:
  Gary, you are pretty much THE authority on these antennas, maybe you should offer the seller of the 1200 strand wire the opportunity to submit a sample roll for your evaluation. If it actually works better than what you have been using, your endorsement would certainly mean more business for that seller. Also, if the seller of the wire you have been using is a friend, you might suggest that he consider selling shorter lengths. He might actually sell more and would likely sell it at a bit more per foot in shorter lengths as well.
Thanks Gord,

I can certainly understand why an experimenter would be reluctant to order more Litz wire than necessary to build a single FSL, especially when it costs about $1 a foot. Since I have a very long term business relationship and friendship with Ming Mak (MkMak222 on eBay), though, I'm not really interested in assisting somebody else to compete with him.

A way to make the 100 foot 1162/46 Litz wire purchase requirement a little easier would be to sell the excess Litz wire to other experimenters, after the purchase. Be careful when you do this, though, because a single FSL loop requires about 33 feet of the 1162/46 Litz wire, and if you waste Litz wire in your construction you will find yourself without enough Litz wire to make two additional loops.

Experimenters should keep in mind that 1162/46 Litz wire is premium, highest-sensitivity material, and should be reserved for uncompromising, top-of-the-line FSL antenna projects. In combination with the "384P" variable cap it will give you amazing performance, but you will pay the price for this advantage. You will also need a 50 watt (or larger) soldering iron to properly install such large diameter Litz wire-- something that most hobbyists don't have. There are a lot of cheaper alternatives out there for someone who wants to stay within a budget..

73, Gary DeBock (in Puyallup, WA, USA)

 


Re: New Design 3 Inch Baby FSL Antenna Demo Video

Gord Seifert
 


   Thanks for the suggestion Phil! I suspect though that I will go with the wire Gary has been using since he has used it on a number of projects and had very good results. The 1200 strand wire is an unknown and does cost 1.5 times as much per foot. With the 100 foot roll I could build a Mini and have enough left to build a much bigger one if I really get into it. Or I could sell it to someone else who also doesn't need a full 100 foot length..

    Gary, you are pretty much THE authority on these antennas, maybe you should offer the seller of the 1200 strand wire the opportunity to submit a sample roll for your evaluation. If it actually works better than what you have been using, your endorsement would certainly mean more business for that seller. Also, if the seller of the wire you have been using is a friend, you might suggest that he consider selling shorter lengths. He might actually sell more and would likely sell it at a bit more per foot in shorter lengths as well.

   Regards,
   Gord 

   Chilliwack, BC


Re: New Design 3 Inch Baby FSL Antenna Demo Video

Richard_Fry
 

On Mon, Jun 24, 2019 at 04:11 PM, Gary DeBock wrote:
<<<   Hello, Gary -
Nice looking FSL, and well-demonstrated.
How would you expect the performance of the setup in the video to compare with the performance of a Sangean PR-D15?
Rich   >>>

Hello Rich,

Since I don't have a Sangean PR-D15 it's tough to answer your question, ...
Understandable (thanks).

For a reference point, my "stock" Sangean PR-D15 is able to receive a 530 kHz TIS station located about 35 miles from me.  Earth conductivity along the groundwave path is ~ 15 mS/m, and the calculated field intensity of the arriving signal is ~ 50 µV/m.

As expected, the receiver audio is very noisy for those conditions, but it is understandable about 90% of the time, No-one would tolerate listening to it for very long, though.


Re: Signal Strength Display on Ultralight Receivers

Richard_Fry
 

RE:  I still prefer a good old analog "S" meter though. Especially when calibrated properly

However an "S" meter even perfectly calibrated to meet the prevailing standard for it also does not take into account the antenna factor or gain of the antenna used by the receiver.

As with the Ultralights, an "S" meter indication is based on the conducted r-f voltage present across the antenna input terminals of the receiver, and does not display the real field intensity of the arriving r-f signal.


April Hong Kong Ultralight DXpedition-- 657-702 kHz Loggings & MP3's

Gary DeBock
 

File review continues from the wild and wacky Hong Kong trip, featuring two daytime DX waterfront sessions, a sunset skip extravaganza with multiple Chinese onlookers and a souped-up Ultralight pulling a shocker by tracking down AM-DX stations in Moldova, Djibouti and Oman right in the middle of the concrete jungle.

 Although Japan and Korea were almost totally MIA during the Hong Kong trip this group of loggings does include a very infamous Northwest regular-- 657-Pyongyang (just my luck, I guess). But it also includes some awesome 693-Bangladesh recordings, along with some stunning daytime DX MP3's from Hong Kong's equivalent of the Rockwork cliff (Cape D'Aguilar). When your cliff can shut down a local Hong Kong pest enough to track down a 5 kW daytime DX co-channel signal 300 miles away at a decent level, you know it's doing its job! 

 
657  Cheng Sheng BC   Taichung, Taiwan   20 kW   Awesome daytime DX signal in presumed Taiwanese across hundreds of salt water miles on Hong Kong's Cape D'Aguilar ocean cliff at 0841 on 4-6, with mention of Taiwan by female announcer at 13 seconds. This was typically the dominant 657 station in HK, although VoV usually prevailed around sunset  https://dreamcrafts.box.com/s/0w74sghm2uyj7oyt3yecklcqke8dl3la

657  Pyongyang BS   Kangnam, N. Korea   1500 kW   The only Korean station to show up (weakly) in Hong Kong, the distinctive female vocalist and dreary orchestra managed to sneak in under Cheng Sheng BC shortly after local midnight at 1648 on 4-7. All the other North and South Korean stations were MIA throughout the week  https://dreamcrafts.box.com/s/qn91ma8bflqrhfrt6jbnno2khmdxxgf3

657  VOV-1   Quan Tre, Vietnam   100 kW   Female Viet speech and martial music at good level over a presumed Cheng Sheng BC on the HK waterfront during sunset skip at 1408 on 4-7  https://dreamcrafts.box.com/s/8f0muymaxfcuahe8k72dqh9mk921zji1

666  DXRP  Davao, Philippines   10 kW   This distinctive female Tagalog speech at 1409 on 4-7 (through local 675 splatter, during HK waterfront sunset DXing) was matched to that of a Poipu, Hawaii 954 UnID recording, determining that both were from the Philippine BC Service network https://dreamcrafts.box.com/s/yjuvgbs7ytdqb19kzbosanct2gq1i1p9

675  Cheng Sheng BC   Peikang, Taiwan   5 kW   Breaking through under local RTHK-6 in a remarkable demonstration of Cape D'Aguilar's ocean cliff effectiveness, the 5 kW Taiwan station manages a pretty good signal in apparent Taiwanese over hundreds of salt water miles during daytime DX at 0825 on 4-6. This overachieving station was also received in Poipu, Hawaii in November   https://dreamcrafts.box.com/s/w5xeg2ajhimo3uyl5feeuiogyejm30m7

675  RTHK (6)   Peng Chau, Hong Kong   10 kW   Local pest in Mandarin had a lot of its signal blocked by the Cape D'Aguilar ocean cliff at 0825 on 4-6, allowing Taiwan's Cheng Sheng to sneak through underneath  https://dreamcrafts.box.com/s/w5xeg2ajhimo3uyl5feeuiogyejm30m7

684  CRI   Dongfang, China   300 kW   Cambodian (Khmer) service was dominant on the Hong Kong waterfront at S9 level during sunset skip DXing at 1413 on 4-7, with the website address given by the lady announcer from 1 to 3 seconds; minor 675 local splatter  https://dreamcrafts.box.com/s/fcu6c6daqm9dlvpulus8o9i2w98kdxwi

684  UnID   Lady in an unknown language (doesn't sound Chinese) at a fairly good level under CRI in the latter part of the above recording at 1413 on 4-7 on the HK waterfront; any SE Asian language experts?  https://dreamcrafts.box.com/s/fcu6c6daqm9dlvpulus8o9i2w98kdxwi

693  Bangladesh Betar   Dhaka, Bangladesh   1000 kW   Dominant with exotic music and awesome S9 signals during sunset skip DXing on the HK waterfront at 1334 on 4-7  https://dreamcrafts.box.com/s/aejavy4iam2hvmmgoc7ge6b82imx7dop

The usual female announcer is featured from 12 to 24 seconds in this recording (over an UnID female speaker) at 1336 on 4-7  https://dreamcrafts.box.com/s/qs2bieiuguma2xzu2rvec0kaplvlvxd1

The exotic station's 1400 TOH on 4-7 (at 1:55 into the recording) doesn't feature the 6 pips heard in an April 2018 Cook Island recording, so they apparently have been phased out. An UnID Chinese co-channel seems to be hanging around at the TOH  https://dreamcrafts.box.com/s/va3i98g46uk1yz68qzkrqb0k5duyg8v4

At 1415 on the same evening the usual male and female announcers have put the music aside and are discussing some topic (still at an S9 level)  https://dreamcrafts.box.com/s/pp0an544l7mfj6veor767fh1ik8wwsik

693  Han Sheng BC Synchros   Taiwan   Strong daytime DX signal with energetic Chinese opera on HK's Cape D'Aguilar at 0827 on 4-6  https://dreamcrafts.box.com/s/xzt63rshqcr648lzx9xj94ff6woqkaz2

693  UnID-Philippines   Weak Macau daytime DX co-channel under Han Sheng BC at 0635 on 4-4; the Chinese stations are out of daytime DX range  https://dreamcrafts.box.com/s/xf5xusnz0k80mbch9w834ktsini9cezm

702  DXAS   Valenzuela, Philippines   50 kW   FEBC broadcast in Tagalog at S9 level over Zhuhai at 2210 on 4-6 during sunrise session; this station has frequent accented English speech  https://dreamcrafts.box.com/s/5g56fu5fbytyasbky3etb8hss8j62db7

702  VOV-2   Danang, Vietnam   50 kW   Male Viet speech at good level // 729 on the Hong Kong waterfront at 1420 on 4-7 with multiple mentions of Vietnam; the 729 parallel is included during the last 7 seconds  https://dreamcrafts.box.com/s/lfigny1ryhjmmpdhgtvleoqbnqy3k3n3

702  Zhuhai   Zhuhai, China   (power unknown)   S9+ signal in Mandarin from this Mainland semi-local during Macau daytime DXing at 0636 on 4-4; this signal would fizzle after sunset, allowing DXAS and VoV to dominate  https://dreamcrafts.box.com/s/uebzspe8by9w3ze3067ybfp6gup58pgx

(TO BE CONTINUED) 

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