They skip the ham bands, like so many other services do. I used to work
with a vertically-incident ionosonde that scanned 2.0 through 30+ MHz. It
was programmed to skip the ham bands and the WWV frequencies. But it only
stayed on a given frequency for such a short time that I doubt it caused
any interference.

The HAARP facility also used frequency-scanning transmissions that skipped
over the ham bands.

Zack W9SZ

On Thu, Jul 20, 2023 at 9:22 PM Bill Smith <smth752@hotmail.com> wrote:

> According to the SMC the following 2-25 mhz frequency segments are in the
> Part 90 Industrial/Business pool: 2.107 – 2.170; 2.194 – 2.170; 2.505 –
> 2.850; 3.155 – 3.400; 4.000 – 4.063; 4.438 – 4.650; 4.750 – 4.995; 5.005 –
> 5.450; 5.730 – 5.900; 5.730 – 5.900; 6.765 – 7.000; 7.400 – 8.100; 9.040 –
> 9.400; 9.900 – 9.995; 10.150 – 11.175; 11.400 – 11.600; 12.100 – 12.230;
> 13.410 – 13.570; 13.870 – 14.000; 15.800 -16.360; 17.410 – 17.480; 18.030 –
> 18.068; 18.168 – 18.780; 19.020 – 19.680; 19.800 – 19.990; 20.010 – 21.000;
> 21.850 – 21.924; 22.855 – 23.200; 23.350 – 24890. There might be a typo,
> but you can check Appendix E, page 35 of the document. SMC stations have
> been testing on 4.9, 10.2, 14.9, 19.9 and 24.8 mhz respectively for several
> years using experimental call signs: WI2XNX, WI2XER, WI2XAJ, WL2XYM, and
> WM2XTS. Bill Smith, Douglas, MA
>
> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
>
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> _______________________________________________
>
> THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed
> and/or modified under the conditions set down in the Design Science License
> published by Michael Stutz at
> http://www.gnu.org/licenses/dsl.html
>
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listen to US RMS monitoring file at Jakarta
<https://ww.ibbmonitor.appspot.com/sounds/2307211031@JAKA_
9410BBCASES.MP4>
or  query of July 21 at 10.30 UT, BBC under JAKA monitoring
<https://ww.ibbmonitor.appspot.com/sounds/query>
narrow set 'BBC' 10.00 to 12.00 UT
select Jakarta, Vietnam or Singapore monitoring MP4 files.
or HCM city VTN
<https://ww.ibbmonitor.appspot.com/sounds/2307211031@HCMC_
9410BBCASES.MP4>
but nice signal heard today July 21
at 11.00 UT at Singapore monitoring mp4 file example
<https://ww.ibbmonitor.appspot.com/sounds/2307211101@SING_
9410BBCASES.MP4>
73 wb

-----Ursprüngliche Nachricht----- 
Subject: Re: Fw: [WOR] BBC Kranji - Singapore site about to close?

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7290kHz, R. RRI Nabire Pro 1, Indonesia; 16/07/2023, 0933 – 0958 tune in very weak signal but could hear that music was playing; female talks at 0943, return of music at 0945 (seems a pop ballad); following musical selections and signal getting worse again after its peak between 0945-0950. There was still a quick improvement around 0955; overall extremaly weak signal(LOB-B).
https://soundcloud.com/user-463139565/rri-nabire-pro-3?ref=clipboard&p=a&c=1&si=98c02239ef4344d4af0d3aede0cf8360&utm_source=clipboard&utm_medium=text&utm_campaign=social_sharing

17/07/2023, 0930 – 1000, tune in much better than day before fair signal; music selections (basically ballads), at 0938 male on music, 0941 more fades and signal starts to deteriorate, 0942 female, seems ads, at 0945 music selections, 0954 male. At 1000 interrupted by CNR. Much lower signal compared to the begining, near inaudible (LOB-B).
https://on.soundcloud.com/RG6ya

7610kHz, Radio Compañía Worldwide, Chile; 19/07/2023, 0042 – 0050 male in spanish sports talks ( debate about the situation of Chilean teams in South American football championship, and other football topics). Tune in fair signal but deteriorating over the listening, fady (LOB-B) 
https://on.soundcloud.com/xb33d

Tecsun 310et 
Wire 14m,  dipole 18m 
Embu SP Brasil

Enviado do Yahoo Mail no Android
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According to the SMC the following 2-25 mhz frequency segments are in the Part 90 Industrial/Business pool: 2.107 – 2.170; 2.194 – 2.170; 2.505 – 2.850; 3.155 – 3.400; 4.000 – 4.063; 4.438 – 4.650; 4.750 – 4.995; 5.005 – 5.450; 5.730 – 5.900; 5.730 – 5.900; 6.765 – 7.000; 7.400 – 8.100; 9.040 – 9.400; 9.900 – 9.995; 10.150 – 11.175; 11.400 – 11.600; 12.100 – 12.230; 13.410 – 13.570; 13.870 – 14.000; 15.800 -16.360; 17.410 – 17.480; 18.030 – 18.068; 18.168 – 18.780; 19.020 – 19.680; 19.800 – 19.990; 20.010 – 21.000; 21.850 – 21.924; 22.855 – 23.200; 23.350 – 24890. There might be a typo, but you can check Appendix E, page 35 of the document. SMC stations have been testing on 4.9, 10.2, 14.9, 19.9 and 24.8 mhz respectively for several years using experimental call signs: WI2XNX, WI2XER, WI2XAJ, WL2XYM, and WM2XTS. Bill Smith, Douglas, MA

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows

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Re:  BBC has updated its frequency pages and grids.
PHILIPPINES/TAIWAN new BBC relay in En via USAGM Tinang PHL
9410 kHz at 10.05 in KIWI remoted SDR net Hanoi Vietnam
and both Thailand installations S=7-8, but much better signal
noted in Akitakata Hiroshima and Tokyo Japan on Perseus SDR net:
9410even S=9+15dB BBC ENWS via Tinang-PHL relay at 10.20 UT,
and co-channel signal
9410.004 kHz Fu Hsing BC stn Kuanyin TWN in Chinese;
S=7 or -89dBm bad mixture audio of both at Bandung-INS KIWI net
at 10.50 UT.
latter Kuanyin TWN Chinese also
on 
9773.992 kHz S=9+10dB measured exact frequency
and
15375.007 kHz S=8 at 10.30 UT on July 20.
[selected SDR options, span 12.5 kHz RBW 15.3 Hertz]
(wb  df5sx, wwdxc BC-DX TopNews July 20)
From: Stephen Luce
Sent: Wednesday, July 19, 2023 2:52 PM
Subject: Re:  BBC has updated its frequency pages and grids.
U.K.   Re:  BBC has updated its frequency pages and grids.
Checking Kiwi-net SDRs in Thailand and Japan at 1050 UT on July 19:
As expected, NO SIGNAL from BBCWS on 15640 kHz; this is (erroneously)
listed on the BBCWS frequencies webpage, but NOT registered with the
HFCC.org
A bit of a surprise at 1100UT: Checking various SDRs in Thailand, Vietnam,
Indonesia, Taiwan, Japan, South Korea and Western Australia, POOR
RECEPTION of BBCWS on 9410 kHz at all those sites.  HFCC registration has 
this as 250kW at 200 degrees from Tinang, but signal level far below what 
might be expected, even in the supposed beam of the transmission.  Actually 
another site?  Had the thought it might be Tashkent; if so, higher frequency 
needed.
Listening 12 and 13 hours earlier the BBC frequencies from Tinang were much 
stronger.
When listening direct here in Houston, 9410 had provided a fair signal from 
Singapore, and that was the case on July 16 when Tinang was to come into 
use, but the next day very poor reception, and the day after just a flutter. 
Did not check direct today.  I have wondered if the July 16 reception was 
actually a last gasp from Kranji, as the site had been on that day for the 
morning transmissions to Asia.
Stephen Luce
Houston, Texas
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