[SFDXA] [DCARC] Question for you guys in Broward (Or close by) on HF
wb4ehg
wb4ehg at rjoerger.com
Wed Nov 20 16:53:17 EST 2024
Rich,
I can hold the mic or phone in front of the radio. I could do it on the
net or you can call me.
It is a continuous high frequency buzz. S-Meter reads S5 to S-10
(depends on the band) so weaker signals are over ridden. The IC-7610 and
I assume the IC-7300 was a flashing "OVF" text meaning the receiver is
being over driven (DSP's don't like that). There is also an occasional
wide band pulse on the spectrum display.
The 7610's Noise Blanker does a good job of reducing it but I don't know
how that impacts weak FT8 signals.
Since I work contests and DX where weak signals are what you are after
this impacts my operating.
It's covering 160m thru 6m.
It's possibly Christmas lights but they are usually on timers and not on
during the day. This so far is constant.
I turned off all the UPS', computers, TV, Laptops and circuit breakers
except for the radios (they have their own 120VAC line and breaker as
does the 240VAC amp, 2 lines run just for them) so the only thing on in
here was the radios. My HF antennas are far enough away that RFI from
here should not impact them.
Dennis has the same problem, he mentioned it Sunday.
If we had an HF antenna at the club station I'd like to know what it sees.
The question is is it local to us or something from further away. I
don't see much change when rotating the beam and it there on all 3 HF
antennas so it's not an antenna problem.
73, Rich
On 11/20/2024 15:13, Richard KQ4JKQ via groups.io wrote:
>
> From a newb perspective any audio recording of this? Or does it just
> sound like dull static at a particular harmonic frequency ? Pardon
> mixing any terms that may not make sense.
>
>
> On Wed, Nov 20, 2024, 10:06 AM Rich WB4EHG via groups.io
> <http://groups.io> <wb4ehg=rjoerger.com at groups.io> wrote:
>
> Thanks Mike.
> I just checked and it's still here.
>
> I'm hoping to hear from some more guys, especially out of the area.
>
> Interesting that it went away.
> If you don't mind please tell those of us listen if it comes back
>
> Rich
>
> On Wed, Nov 20, 2024, 06:04 Mike Williams <mj451 at bellsouth.net> wrote:
>
> Hi Rich,
>
> My Monday morning schedule with a group of guys in the Midwest
> was trashed due to the noise you described. This was on 20
> meters and was 10 over S9 here in Pompano. I checked 10
> through 40 meters and the noise was the same repetition rate
> and very strong on all bands, less so the higher I went in
> frequency. It's has disappeared now at my location.
>
> 73 de W4DL Mike in EL96wf
>
>
>
> ------------------------------------------------------------------------
> *From:* sfdxa-bounces at mailman.qth.net
> <sfdxa-bounces at mailman.qth.net> on behalf of wb4ehg
> <wb4ehg at rjoerger.com>
> *Sent:* Tuesday, November 19, 2024 18:33
> *To:* DCARC <DCARC at groups.io>; SFDXA Reflector
> <SFDXA at mailman.qth.net>
> *Subject:* [SFDXA] Question for you guys in Broward (Or close
> by) on HF
>
> Howdy,
>
> Since I last operated on Friday, yesterday and today I noticed
> a very strong noise level increase on all bands 80m to 6m on
> all 3 antennas (OCFD Vee, AV640 vertical and Steppir).
>
> Noise is S7 to S9 with the noise blanker and noise reduction
> turned off. It's a raspy buzz -- yes sounds like 60Hz.
>
> There have been no equipment changes here.
>
> Before I go tearing into analysis: turning everything in the
> house off & operating from a battery, etc, is anyone else in
> our area noticing the same problem?
>
> Thanks Rich
>
> --
> 7 3, Rich, wb4ehg
>
>
> --
> --
>
> _._,_._,_
> ------------------------------------------------------------------------
> Groups.io Links:
>
> You receive all messages sent to this group.
>
> View/Reply Online (#6703)
> <https://DCARC.groups.io/g/main/message/6703> | Reply to Group
> <mailto:main at DCARC.groups.io?subject=Re:%20Re%3A%20%5BDCARC%5D%20%5BSFDXA%5D%20Question%20for%20you%20guys%20in%20Broward%20%28Or%20close%20by%29%20on%20HF>
> | Reply to Sender
> <mailto:richard.bardons at gmail.com?subject=Private:%20Re:%20Re%3A%20%5BDCARC%5D%20%5BSFDXA%5D%20Question%20for%20you%20guys%20in%20Broward%20%28Or%20close%20by%29%20on%20HF>
> | Mute This Topic <https://groups.io/mt/109685286/170239> | New Topic
> <https://DCARC.groups.io/g/main/post>
> Your Subscription <https://DCARC.groups.io/g/main/editsub/170239> |
> Contact Group Owner <mailto:main+owner at DCARC.groups.io> | Unsubscribe
> <https://DCARC.groups.io/g/main/leave/814021/170239/774534871/xyzzy>
> [wb4ehg at rjoerger.com]
>
> _._,_._,_
--
7 3, Rich, wb4ehg (my QRZ page) <http://qrz.com/db/wb4ehg>
Listening 443.250, 147.330
ARRL (VE), DCARC <https://dcarc.club>, SFDXA <https://sfdxa.com>, FCG
<https://floridacontestgroup.org/>
ARRL A-1 Operator <https://www.arrl.org/a-1-op>
SFDXA 2024 DX Hog Award recipient
FISTS #19877 & SKCC #21946
FEMA region #6
On 11/20/2024 15:13, Richard KQ4JKQ via groups.io wrote:
>
> From a newb perspective any audio recording of this? Or does it just
> sound like dull static at a particular harmonic frequency ? Pardon
> mixing any terms that may not make sense.
>
>
> On Wed, Nov 20, 2024, 10:06 AM Rich WB4EHG via groups.io
> <http://groups.io> <wb4ehg=rjoerger.com at groups.io> wrote:
>
> Thanks Mike.
> I just checked and it's still here.
>
> I'm hoping to hear from some more guys, especially out of the area.
>
> Interesting that it went away.
> If you don't mind please tell those of us listen if it comes back
>
> Rich
>
> On Wed, Nov 20, 2024, 06:04 Mike Williams <mj451 at bellsouth.net> wrote:
>
> Hi Rich,
>
> My Monday morning schedule with a group of guys in the Midwest
> was trashed due to the noise you described. This was on 20
> meters and was 10 over S9 here in Pompano. I checked 10
> through 40 meters and the noise was the same repetition rate
> and very strong on all bands, less so the higher I went in
> frequency. It's has disappeared now at my location.
>
> 73 de W4DL Mike in EL96wf
>
>
>
> ------------------------------------------------------------------------
> *From:* sfdxa-bounces at mailman.qth.net
> <sfdxa-bounces at mailman.qth.net> on behalf of wb4ehg
> <wb4ehg at rjoerger.com>
> *Sent:* Tuesday, November 19, 2024 18:33
> *To:* DCARC <DCARC at groups.io>; SFDXA Reflector
> <SFDXA at mailman.qth.net>
> *Subject:* [SFDXA] Question for you guys in Broward (Or close
> by) on HF
>
> Howdy,
>
> Since I last operated on Friday, yesterday and today I noticed
> a very strong noise level increase on all bands 80m to 6m on
> all 3 antennas (OCFD Vee, AV640 vertical and Steppir).
>
> Noise is S7 to S9 with the noise blanker and noise reduction
> turned off. It's a raspy buzz -- yes sounds like 60Hz.
>
> There have been no equipment changes here.
>
> Before I go tearing into analysis: turning everything in the
> house off & operating from a battery, etc, is anyone else in
> our area noticing the same problem?
>
> Thanks Rich
>
> --
> 7 3, Rich, wb4ehg
>
>
> --
> --
> 73, Rich wb4ehg
> ARRL VE <http://www.arrl.org/volunteer-examiners>, DCARC
> <http://dcarc.club/>, SFDXA <https://sfdxa.com/>, FCG
> <https://floridacontestgroup.org/>, QCWA
> <https://www.qcwa.org/qcwa.php>
> SKCC <https://www.skccgroup.com/>: #21946
> FISTS <http://www.fists.org/>: #19877
>
> _._,_._,_
> ------------------------------------------------------------------------
> Groups.io Links:
>
> You receive all messages sent to this group.
>
> View/Reply Online (#6703)
> <https://DCARC.groups.io/g/main/message/6703> | Reply to Group
> <mailto:main at DCARC.groups.io?subject=Re:%20Re%3A%20%5BDCARC%5D%20%5BSFDXA%5D%20Question%20for%20you%20guys%20in%20Broward%20%28Or%20close%20by%29%20on%20HF>
> | Reply to Sender
> <mailto:richard.bardons at gmail.com?subject=Private:%20Re:%20Re%3A%20%5BDCARC%5D%20%5BSFDXA%5D%20Question%20for%20you%20guys%20in%20Broward%20%28Or%20close%20by%29%20on%20HF>
> | Mute This Topic <https://groups.io/mt/109685286/170239> | New Topic
> <https://DCARC.groups.io/g/main/post>
> Your Subscription <https://DCARC.groups.io/g/main/editsub/170239> |
> Contact Group Owner <mailto:main+owner at DCARC.groups.io> | Unsubscribe
> <https://DCARC.groups.io/g/main/leave/814021/170239/774534871/xyzzy>
> [wb4ehg at rjoerger.com]
>
> _._,_._,_
--
7 3, Rich, wb4ehg (my QRZ page) <http://qrz.com/db/wb4ehg>
Listening 443.250, 147.330
ARRL (VE), DCARC <https://dcarc.club>, SFDXA <https://sfdxa.com>, FCG
<https://floridacontestgroup.org/>
ARRL A-1 Operator <https://www.arrl.org/a-1-op>
SFDXA 2024 DX Hog Award recipient
FISTS #19877 & SKCC #21946
FEMA region #6
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/sfdxa/attachments/20241120/0125e4dd/attachment-0001.html>
More information about the SFDXA
mailing list