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Messages - Charlie_Dont_Surf

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91
Good signal direct at home in SoCal. Very listenable. SINPO 34343.

92
Sounds a bit distant, fluttery and "freaky" to me using receivers in the midwest US. I assume that's because there is a geomagnetic storm right now and the K index is about 5 or so.

0134 - Computerized voice ID.
0141 - Music is fading down, or I'm losing the signal. One or the other.
0143 - "Technical difficulties. Transmitter is smoking. Smoking will kill you" (Repeated auf Deutsch)
0210 - "Technical difficulties. Transmitter is smoking. Smoking will kill you" over a telephone busy signal. Switched to Northern Utah kiwi with log-periodic antenna pointed east. Much better.  :D
0213 - Distorted metal tune.
0224 - "This completes our broadcast day."(Repeated in German.) Email address given phonetically.
0227 - Official sounding anthem-type song, with male reading bits from Winston Churchill's "We Shall Never Surrender" speech in 1940 over top.
0229 - Carrier Off.

Propagation is shit towards the right coast, I suspect the left coast peeps might be able to hear some tunes.

Yeah, that's basically true.

93
Equipment / Re: Modulation Help (AM)
« on: March 13, 2025, 0059 UTC »
I wrote a whole reply yesterday but HFU crashed as I was editing it and I lost it all. I'll recreate it in brief here.

In the same sentence, you wrote "no balun" on the dipole and that's a big mistake.
Charlie_Dont_Surf,
My horizontal dipole is constructed using an Alpha Delta C hardware kit https://www.dxengineering.com/parts/alf-delta-c. Currently about 30' in the air but I am going to try to double that over the next few days.

For the current design of the dipole, it seems that this style balun would be useful - https://www.dxengineering.com/parts/rez-cm7. I do need to keep it somewhat stealth, have a very Karen neighbor that loves calling the HOA...  ::) I'm under the assumption that this style balun is just as effective as the 'boxy' ones?

People get a bit confused about what constitutes a balun and what constitutes a feedline choke and I think some of the vendors have not helped in that regard.
A feedline choke is not a balun. In any case, an easy way to look at it is that a balun should have a dual leads on one side/end. Here are some images that show what I mean. Though they look similar to the feedline choke, one end has dual leads, circled in red.


Ultimately you want to replace the center portion of your Alpha Delta antenna (the bit with the coax connector) with a balun. You can use of the "boxy" kind or you can use the ones that are shaped like a cylinder. Either way, you will be adding some extra weight to the center of the dipole so you will need either a center support or strong support of the two ends or maybe both.


My other antenna project for this week is a DX Commander Rapide. Just completed the footer for the fiberglass post, element cutting is next. Being a vertical, it is an unbalanced antenna and would not requie a balun, correct?

Correct. This is where the "REZ Antenna Systems CM7 Common Mode Feedline Chokes" (or similar) is exactly what you need. I like the stuff from a company called Balun Designs. Their Model 1115d works well for me for the same purpose. https://www.balundesigns.com/model-1115d-isolation-choking-1-1-balun-1-5-54-mhz-5kw/


I do have more questions about getting my AM signal out as far as possible but realize it starts with the antenna. Hopeful the low take off angle of the vertical will help. So once these issues are sorted, next step may be a painfully expensive amplifier.

Amplifiers are another discussion.

Given you live under an HOA, be especially careful about generating interference with your neighbor(s). Increasing transmit power increases the risk of interference. In "the old days", an HF transmitter would easily get into TVs, telephones, Hifi stereo equipment, etc. With the common use of mobile phones, cable TV, Bluetooth, etc. now, the risk may have lessened, however, there still exists the possibility of interfering with anything that generates audio for someone to listen to, i.e., TV audio outputs, home theater stuff, guitar amplifiers, hearing aids, etc.

Your neighbor might be a good indicator or a "canary in the coalmine": if you don't hear from her and she's one of the closest to you, then chances are everybody else isn't hearing it either.

94
The KX2 is multi mode

This is true too. I have a KX3.

95
Very loud in New England York. SINPO 55555.

2222 - Tail end of "Eye of the Tiger"
2224 - "Danger Zone"

96
Utility / Re: CW Military Station..??
« on: March 11, 2025, 2030 UTC »
This was heard today 11 March 2025 on 3797 Khz on an SDR in Austria. Close down at 2005 UTC.

The sending was around 20 words per minute and contained a lot of "2-digit number / 2-digit number / 1-digit number" groups with other words between. Some words appeared to be transliterated Arabic names, Turkish names and occasional Slavic words, e.g., "LABOTY" ("swans" in Czech) or Germanic words ("PUNKT"). Another word that shows up a lot is "KARTA", which I would understand to be a reference to a "map" in Spanish & Italian if it were spelled "CARTA", but also Google Translate says it is the Somali word for the English verb "to be able to".  :) "MART" also appears a bit and I understand as the month of March in Russian and perhaps other Slavic languages. Finally, there is also "BUROWYE RABOTY", which could be transliterated Russian for "DRILLING OPERATIONS" (БУРОВЫЕ РАБОТЫ).

I used the CW decoder in the Kiwi. Below you will see the CW decoder's version on the final ~15 minutes of sending. I was able to copy some of the CW in my head and it appears to be accurate, to the extent that I can tell.

ORE B4ROWYE LABOTY WO 31 MART SUDAMI ABDULHADID HAN E RTUGRUL BEY MURUVVET ILHAN MURAT ILHAN I KUTSI 8HAN RAJONE 42/52/5 S MMEW1/11/0
W 42/52/6 S 93[err]/17/6 W 42/50/0 S 031/17/7 W 42[err][err]E /9 S [err]3 1/11<sn>0 W OTM [err]T OT NRE [err]JT 2200[err]RT NAWIP 031
304 OTM 031 287/25 PERE YBX<aa>WLENO NAWAREAE 0303 4/25 OTM [err]TOT NR NAWIP 031 303 QTM 0SM[err]2 88/25 PEREO BX<aa>WLENO NAWARE A 0
31 3[err]/25 EEEEE E 0393 3/25 OTM[err]TOT NRNAWIP 031 302 OTM 0[err]1MMMM1 IVNEEEE E I2TM 031 15[err]/24 OTM [err]TOT NR <bt> ES[err]
[err]RTEM UEIE [err]T [err]E E EE TT GETT X EKV[err]T NW K <bt>E I TEM T R KTIETN AUTTT[err]US EN E EIE E SNS UEDS ATTKEHS ATTKES I WT
TAEHS MATTAE WTTSATTTTT 17MT ATTTATTT AMTVT00 130 [err]E <bt> SEEESEE[err]BEE HESIIIHETE A W A R E A 0 3 1 3 5 KARTA 32118 [err]E RNOE
 MQRE BUROWYE RABOTY PO 09 MAJ I HU[err]MI FATIH AYBUKE ALTAN I KUTSI ILHAN RAJONE 52 /53/3 S 031/16/3 W 42/53/4 S 031/19/2 W 42/50/SI
 S 031/19/2 W 42/50/5 S 031/16XE4W OBHODITX 10 MIL<aa>H OTM [err]TOT NR 09 2100 MAJ OTM 031 10[err]25 I [err]TOT PUNKT NAR AREA 031 34
 KARTA 32118 [err]E RNOE MORE BUROWYE RABOTY[err]O 23 APR ISUDSMI YAVUZ MIHRIMAH KORKUT S ORHAN BEY RAJONE 42/52/8 S [err]3 1<sn>10/0
W 42/51XE9 S 031/12/7 W 42/49/8 S 031/12/<as>W 52 /49/8 S 031/10/TJ W OBHODITX 10 MIL<aa>H EOT M [err]TOT NR 23 2100 APR NAWAREA EE031
 33 KARTA 32118 [err]E AROE MXRE BUROWYE RABOTY PO 31 MART SUDAMI ABDUFHAMID HAN ERTUGRUL BEY MULUVVET ILHAN MURAT ALHAN I K<sn>THI IL
HAN RAJONE 42/52/5 S E03<aa>1/PT1 EEEEE S H55[err]31/L11/ EEEEE S E031 / I11 / 0 W 42/52/6E S 031/17/6 W 42/50/0S 031/,[err]/7 W 42/49
/9 S 031/11/0 W OTM [err]TOT NR 31 22T00 EEEEE 3' 2200 MART NAWIP 031 3040O EEEEE 5[err]31 304 2TM E031 287/2[err]P EREO6XWWLENMT NAWA
RER EE EESSE[err]E E EE HII[err]EREOBX<aa>WLENO RAWAREA 031 34 /25 ONM [err]TOT NR NAWIPHHHIH I
]SES[err]EPAWIP[err]3 OT M 0 3 1 2 88 [err]2 5 EPEREOBX<aa>WLEN[err]N AWAREA 031 33/25 2TM <sn>T OT NR ENAWIP 031 302 OTM E 0[err]1 15
81[err] 581/ 24 EOTM [err]T OT NR <ar> EEIHE[err][err]5V[err]E EA[err]TT ETM E E WTMTTEMEE[err]M
UTTNAQN ME E IIE TT AV [err]E WNUWE EA KEET RS
04 <bt> <sn>A WIP E [err]3 1 305 KARTA 31013 TURCI<aa> STRELXBY PO 17 MART 0600 DO 1600 RAJONE 42/02 S E035/10 W 42/07 S 0[err]4 /53 W
 [err]2/44 S [err]34/48 W 42/43 S E036/47 W 41/46 S 036/3[err]W 41/44 SIHEE035/58 W OTM [err]TOT NR 17 1700 MART OTM 031 289/25 I [err
]TOT PUNKT <bt> E <hh>IH[err][err]E <as>EHIEIS[err]2CHS JCHS 2CHS QTC TISEI[err]04 50 1[err]1 301 104 I<bt> EI<sn>AWIP 031 305 KARTA 3
1013 TURCI<aa> STRELXBY PO 17 MART 0600 LO 1600 RAJONE 42/[err]E 2 S 035/10 W 42/07 S 034/53 W 42/44 S 03 4/48 W 42/43 S 036/47 W 41/4
6 EES 036/32 W 41/44 S 0[err]/58 W OTM [err]T OT NR 17 1700 MART OTM 031 38 9/25 I [err]T OT 3U NKT <ar> I ES[err][err][err][err]R IA
E [err][err]S E [err][err]US A[err]S [err]D T[err][err]IE T IEEE T TS TT UI4 SIW [err]REK E E E E E E[err]M KM[err]E E[err]HEE E A V T




97
Pretty typical signal in Texas. SINPO 44343 / S9+.

0120 - ID 2x, into next track.

0145 - I switched SDRs due to receiver overload on the one I was using. I'm now on Scratch Monkey's SDR in Louisiana.
Really nice reception right now: http://skip.land:8075/?f=6924.945sasz10

0154 - Long pause with dead air. Usually this is the end.

0155 - Yup. Carrier off.

98
Equipment / Re: Modulation Help (AM)
« on: March 10, 2025, 2242 UTC »
Yes, as others have noted, 25W carrier maximum for your setup. That's most certainly the primary issue and also the easiest to fix.

However, it also seems that you may be confusing feedback with the distortion that trying to run 100 W carrier and also trying to fully modulate would cause. (Unfortunately, RF feedback can itself create distortion so I can understand some of the confusion.) RF feedback may also be an issue here; I can't tell from what you wrote. You have written, "no RF coming back into the shack" but I beg to differ. There is almost certainly always some RF in the shack, it's just a question of how much and if that level is enough to create issues.

In the same sentence, you wrote "no balun" on the dipole and that's a big mistake. A dipole is balanced antenna, meaning that both arms are meant to be equal and the RF feed also must be balanced. Your coax (RG-213) is not a balanced feed. The way to convert from an unbalanced feed (your existing coax) to the the balanced feed that the antenna expects is with a balun. It is exactly the right tool as the name is a contraction of "balanced" and "unbalanced". I recommend putting a balun at the center of the dipole and feeding it that way. Feeding a balanced antenna with an unbalanced source will likely create issues that will lead to RF in the shack, among other things.

I also always recommend that all the cables entering the transmitter should be wrapped around ferrite toroids as much and with as many turns as possible. Get longer cables if you have to. The toroids should be placed as close as practical to the transmitter along the length of the cable, so, for example, a short cable run from the toroid to the transmitter and a longer run to the audio source or the DC power supply is the ideal result. Check the toroid suppliers specs and get ones that are made for suppression at HF. This may be Mix 31, Mix 43 or maybe Mix 75 but there are other possibilities.

The following image gives you some idea of where I am going. (I'm not affiliated with Palomar Engineers and I am definitely not shilling for them. This is just a convenient photo):

99
0615 - I have a weak carrier here. Occasionally I can tell that there is music programming but that's about it.
0630 - Went to an SDR. Judas Priest, "Electric Eye".
0633 - Led Zeppelin
0640 - Carrier off immediately after LZ. Best reception that I was able to find was on the Northern Utah Kiwi with the beam pointed east.

100
I got home about 0430 UTC and have been listening at home (direct, no SDR) since. Conditions were not ideal and signal was a bit weak but copyable most of the time.

Carrier off at 0612 UTC after the usual long, long EDM tracks on a Saturday night.

101
Probably took refuge from 6924.9 because was competing with the bluegrass station on 6924.2.
SINPO 34333 on an SDR in Georgia.

0110 - ID, next EDM track.
0119 - "All Black Everything"
0129 - Smashing Pumpkins
0324 - ID and website given
0340 - Carrier Off.

102
TWO STATION FADING BACK AND FORTH
STRONGER STATION PLAYING COUNTRY MUSIC

Yes. Two stations audible in the northeast:
The station playing hard-core Bluegrass/okie type music at 0102 UTC is on 6924.2 KHz
The second station, which I suspect is Liquid Radio, is(was) on 6924.9 KHz. That station appears to have disappeared, perhaps looking for a new frequency.

103
Fair signal in New England with peskies on the LSB.  SINPO 32333.
Some FMing very noticable,   Per Nitroengine below, not FMing, it's the pilot tones for the stereo. That explains the beat tones I hear and the distortion.

0015 - Guitar rock
0018 - Blues

Side note: It looks like Stern Radio has closed down. At one point before they closed, there were four AM stations on at once. What's the occasion, other than it's Thursday?  ;D

0037  - "Check, check, check. Hello radioland." ID

104
Hearing it on a New England SDR. SINPO 33333 with some fading and peskie QRM on LSB.

2232 - Weak modulation but I recognize classical music. I should know the piece but I think it's one of the Vienna Waltzes. Seems to be Richard Strauss.
2236 - Volume turned up a little, but only a little, or maybe just my imagination and maybe only briefly.
2239 - Definitely turned up a bit for ~ 5 seconds but again back down again.
2240 - Switched to male vocal pop-ish music. "Cluck, Cluck, Cluck" over the music - That settles that.
(Somewhere in here there was a quick shift to 6949.9 KHz)
2245 - Frank Zappa.
2248 - Change to Bob Dylan?
2246 - Frank Zappa, "Bobby Brown".


2236 Music by Johann Strauss

Thank you

105
Good reception in the upper midwest US. SINPO 34343.
I'm dipping in and out of listening as I move between my office and the lab.

0117 - ID then The Breeders, "Cannonball".
0125 - ID and website address, into Sponge, "Plowed".
0135 - ID and joke about listeners in Missouri. (I missed most of it due to noise.) Into Beestie Boys.

0300 - I'm out. Good night.

Hah...I lied! Got home at 0430 UTC, turned on the radio and the transmitter appears to still be on. Just a dead carrier.
Still on at 0535 UTC.

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