Engineering & DX'ing

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143 topics

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Last post

Your best ever car radio?

Last post by FET-500 « Fri Sep 20, 2019 8:25 am
Replies: 59
by bmw » Sat Aug 24, 2019 10:53 pm
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Of all the car radios you have ever owned, which one was your favorite?

As for stock radios, my favorite was the one in my parent's car when I was...
59 Replies

1607 Views

Last post by FET-500
Fri Sep 20, 2019 8:25 am
End-of-summer Tropos

Last post by Big Signal « Fri Sep 20, 2019 4:24 am
Replies: 1
by Chris1980 » Thu Sep 19, 2019 11:11 pm

Received from near Dewitt, late evening of 9/18-early morning of 9/19 (stations I typically receive are excluded unless they were unusually strong)....

1 Replies

49 Views

Last post by Big Signal
Fri Sep 20, 2019 4:24 am
FCCdata.org Now Has Skywave Contours

Last post by CK-722 « Fri Sep 13, 2019 12:27 pm
Replies: 7
by CK-722 » Sun Aug 25, 2019 4:32 pm

WJR and WWJ 0.5 mV/m 50% Skywave Contours, along with 2 mV/m and 0.5 mV/m Groundwaves.

Zoom out for WJR Skywave Contour.

This uses the newer...

7 Replies

274 Views

Last post by CK-722
Fri Sep 13, 2019 12:27 pm
Fla dx king Sarasoia

Last post by fairbankshockeypuck « Thu Sep 12, 2019 7:53 pm
Replies: 10
by fairbankshockeypuck » Mon Sep 09, 2019 11:09 am

Radio peeps..love to AM DX..here on FLA west coast...650 WSM Nashville..700 WLW Cincinnati...750 WSB Atlanta...760 WJR Detroit not real good...780...

10 Replies

245 Views

Last post by fairbankshockeypuck
Thu Sep 12, 2019 7:53 pm
SHortwave pirate stations

Last post by SolarMax « Wed Sep 11, 2019 3:37 pm
Replies: 30
by Ed Joseph » Wed Jul 03, 2019 10:20 pm
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They have really been active lately! I just got back into the SWL hobby after a decade off. I've never heard more pirates on SW in my life! At least...
30 Replies

1163 Views

Last post by SolarMax
Wed Sep 11, 2019 3:37 pm
Aurora Borealis Possible In Michigan This Weekend

Last post by Ed Joseph « Wed Sep 11, 2019 1:07 pm
Replies: 8
by CK-722 » Fri Aug 30, 2019 11:26 am

WNEM reports.

8 Replies

296 Views

Last post by Ed Joseph
Wed Sep 11, 2019 1:07 pm
Looking to gain CIII-29, CICO-32, and CHWI-16. Antenna recommendations?

Last post by F-Squared « Fri Sep 06, 2019 7:11 pm
Replies: 9
by F-Squared » Sat Jul 20, 2019 3:10 pm

In Warren. I got CIII-29 on my setup in Winter and a bit into Spring and I badly want it back now. Haven't been able to get CICO-32 or CHWI-16 on a...

9 Replies

586 Views

Last post by F-Squared
Fri Sep 06, 2019 7:11 pm
600-mile lake tropo (8/24)

Last post by ftballfan « Wed Aug 28, 2019 9:04 pm
Replies: 13
by cckadlec » Sun Aug 25, 2019 5:46 am

Stable 600-mile reception to the Dakotas and Minnesota all afternoon and evening from atop Sleeping Bear Dunes, coastal site #74 of 76, 505 feet...

13 Replies

392 Views

Last post by ftballfan
Wed Aug 28, 2019 9:04 pm
Heading to FLA

Last post by fairbankshockeypuck « Tue Aug 27, 2019 9:15 am

by fairbankshockeypuck » Tue Aug 27, 2019 9:15 am

Heading to Sarasota for ten days starting September 7th. Kind of curious what kind of DX'ing I will find on AM band with my Sangean. Any shortwave...

0 Replies

105 Views

Last post by fairbankshockeypuck
Tue Aug 27, 2019 9:15 am
Online shortwave radios

Last post by Ed Joseph « Mon Aug 26, 2019 8:35 pm
Replies: 4
by Ed Joseph » Wed Aug 07, 2019 3:55 pm

This site shows all the KiwiSDR receivers across the globe. Some are better than others in terms of local noise and reception. But you can find a...

4 Replies

198 Views

Last post by Ed Joseph
Mon Aug 26, 2019 8:35 pm
WPON testing again ?

Last post by Ed Joseph « Sun Aug 25, 2019 6:29 pm
Replies: 20
by k8jd » Tue Aug 13, 2019 5:13 pm
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Tuning the AMBC frequencies and heard Motown oldies on 1460 kHz again, very strong signal and good modulation BUT it keeps going off and coming back...
20 Replies

992 Views

Last post by Ed Joseph
Sun Aug 25, 2019 6:29 pm
New Radio

Last post by Turkeytop « Sat Aug 24, 2019 10:10 pm
Replies: 22
by Turkeytop » Fri Mar 01, 2019 10:59 pm
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Every year, when I'm in Florida, I order a new radio. This year I decided not to. I already have so many radios I just can't justify one more. I...
22 Replies

1278 Views

Last post by Turkeytop
Sat Aug 24, 2019 10:10 pm
Am I experiencing noise?

Last post by F-Squared « Thu Aug 22, 2019 12:46 am

by F-Squared » Thu Aug 22, 2019 12:46 am

I keep seeing little lines across the video that blip into the picture for some frames. Is that noise or could it be something else? How can I test...

0 Replies

132 Views

Last post by F-Squared
Thu Aug 22, 2019 12:46 am
Participation sought for WWV user survey

Last post by WOHO « Wed Aug 21, 2019 5:49 pm
Replies: 2
by SolarMax » Mon Aug 19, 2019 8:05 pm

Feedback from listeners/users will be forwarded to NIST to show support for WWV's Time and Frequency Standard broadcasts, which were in danger of...

2 Replies

587 Views

Last post by WOHO
Wed Aug 21, 2019 5:49 pm
Is ≤2dB a good noise figure for an amp or should I get one that has less noise?

Last post by km1125 « Fri Aug 16, 2019 9:39 am
Replies: 5
by F-Squared » Wed Aug 14, 2019 7:46 pm

The antenna it came with also has a noise figure of ≤3dB. Not sure if that includes the amp's noise or not Is that good or should I get an antenna...

5 Replies

310 Views

Last post by km1125
Fri Aug 16, 2019 9:39 am
A few receptions this morning 8-14

Last post by Mega Hertz « Wed Aug 14, 2019 10:29 pm
Replies: 2
by Mega Hertz » Wed Aug 14, 2019 1:11 pm

Surprisingly, I was able to pull a city-grade signal from Z93 last night, which is difficult being right down the street from WHMI. I left it on 93.3...

2 Replies

222 Views

Last post by Mega Hertz
Wed Aug 14, 2019 10:29 pm
Indespensible SW resource - HF Underground

Last post by Ed Joseph « Tue Aug 13, 2019 2:16 pm
Replies: 4
by Ed Joseph » Wed Aug 07, 2019 5:42 pm

HFU = High Frequency Underground. If it's on the bands, it's logged on HFU forums first... pirates, utilities, SWBC, 2-way... even AM, TV and FM DX....

4 Replies

278 Views

Last post by Ed Joseph
Tue Aug 13, 2019 2:16 pm
Shortwave - WBCQ new 500kW transmitter on 9330kHz

Last post by SolarMax « Fri Aug 09, 2019 9:02 am
Replies: 8
by Ed Joseph » Mon Jul 01, 2019 6:10 pm

A FLAT EARTH group has paid WBCQ's owner to upgrade the 9330kHz transmitter with new 500kW Continental transmitter and Ampegon rotatable array...

8 Replies

704 Views

Last post by SolarMax
Fri Aug 09, 2019 9:02 am
A great explanation of "Tropo"

Last post by Ed Joseph « Wed Aug 07, 2019 5:31 pm
Replies: 3
by bosco » Sun Jul 21, 2019 7:43 pm

There is a lot of comments and work reported on here about tropo openings. I recently had someone ask me to explain it, and I poked around and found...

3 Replies

274 Views

Last post by Ed Joseph
Wed Aug 07, 2019 5:31 pm
102.7 WDKL HD and all Air1 translators off air since last Friday

Last post by CK-722 « Tue Aug 06, 2019 11:53 pm
Replies: 8
by MWmetalhead » Mon Aug 05, 2019 7:30 am

I wonder if WDKL is prepping for a move to the WDRQ / WDMK tower in Oak Park?

The HD signal of 102.7 K-Love has been M.I.A. since at least Friday of...

8 Replies

520 Views

Last post by CK-722
Tue Aug 06, 2019 11:53 pm
Lake tropo 8/1-8/3

Last post by ftballfan « Tue Aug 06, 2019 12:21 am

by ftballfan » Tue Aug 06, 2019 12:21 am

Late last week, I had three nights in a row of strong Milwaukee/Chicago tropo. Here are some of the notable stations I received:

Bold indicated...

0 Replies

338 Views

Last post by ftballfan
Tue Aug 06, 2019 12:21 am
Helping someone get WJBK OTA in SW Wyandotte

Last post by MWmetalhead « Mon Aug 05, 2019 7:02 am
Replies: 29
by mtburb » Thu Jun 27, 2019 6:12 pm
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I am assisting Susan David-Thorne from the Wyandotte residents group on Facebook. She has a flat antenna for TV reception. She can usually get WJBK...
29 Replies

1290 Views

Last post by MWmetalhead
Mon Aug 05, 2019 7:02 am
Reduced ERP from "Overheight" FM Stations

Last post by CK-722 « Fri Aug 02, 2019 3:44 pm
Replies: 18
by Rich » Wed Jul 24, 2019 6:19 am
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FM stations with antenna heights greater than the HAAT permitted for their Class of station must reduce their ERP to provide a radius to their 1 mV/m...
18 Replies

878 Views

Last post by CK-722
Fri Aug 02, 2019 3:44 pm
Can You Figure Out What This Is?

Last post by k8jd « Sat Jul 27, 2019 1:17 pm
Replies: 6
by CK-722 » Fri Jul 19, 2019 8:16 am

Not a weather map. Not a signal map. Not a cell phone related map. It IS a contour map of sorts.

We were given the link at a recent presentation at...

6 Replies

488 Views

Last post by k8jd
Sat Jul 27, 2019 1:17 pm
As the repack continues, TVFool still doesn't have an updated transmitter database. What's going to happen?

Last post by k8jd « Sat Jul 27, 2019 1:15 pm
Replies: 8
by F-Squared » Wed Jul 24, 2019 3:23 pm

It hasn't been updated since January 2017. With the repack here, it would be wise to stop trusting it so much due to inaccuracy. Any alternatives,...

8 Replies

509 Views

Last post by k8jd
Sat Jul 27, 2019 1:15 pm
E-Skip Audio Bandscan (7/20)

Last post by cckadlec « Mon Jul 22, 2019 7:00 pm
Replies: 4
by cckadlec » Sun Jul 21, 2019 10:58 am

With yesterday's (7/20) big Es opening throughout the Midwest and beyond reaching MUFs of 170 and lasting for more than three hours, I decided I...

4 Replies

387 Views

Last post by cckadlec
Mon Jul 22, 2019 7:00 pm
DIY High Gain FM Antenna-Michael Salvati-Audio Magazine

Last post by CK-722 « Mon Jul 22, 2019 4:28 pm

by CK-722 » Mon Jul 22, 2019 4:28 pm

First of the links I found for Dr. Salvati, from the late 1970s and early 1980s.

Follow the page index or search for the word Salvati .

0 Replies

372 Views

Last post by CK-722
Mon Jul 22, 2019 4:28 pm
Another Good Resource On Indoor vs. Outdoor Antennas

Last post by CK-722 « Mon Jul 22, 2019 9:20 am
Replies: 4
by CK-722 » Sun Jul 21, 2019 11:39 pm

Any way you cut it,, Outdoor>Attic>Indoor 6 Feet Above Ground Level. Preamps are noisy, and don't give you gain like noise free gain from antenna...

4 Replies

268 Views

Last post by CK-722
Mon Jul 22, 2019 9:20 am
More New Outdoor Antenna Options, And The TV Antenna With Red Light

Last post by CK-722 « Sun Jul 21, 2019 4:43 pm
Replies: 6
by CK-722 » Fri Jul 19, 2019 12:56 am

My neighbor has an amplified antenna on his roof with a red light. I just noticed it tonight. I can't see it well, but it has a driven folded dipole...

6 Replies

391 Views

Last post by CK-722
Sun Jul 21, 2019 4:43 pm
Why Are Towers Shrouded On Satellite View?

Last post by k8jd « Thu Jul 18, 2019 8:00 pm
Replies: 2
by Ben Zonia » Thu Jul 18, 2019 1:37 pm

Why are many towers shrouded on Satellite View? You could look at what is on them for miles near ground level around with a set of high power...

2 Replies

284 Views

Last post by k8jd
Thu Jul 18, 2019 8:00 pm
July Tropo

Last post by MWmetalhead « Thu Jul 18, 2019 7:14 pm
Replies: 15
by windsor » Mon Jul 08, 2019 11:01 am
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Nice opening this morn into Ohio............

Columbus......WCMH rf14, WBNS rf21,WOSU rf38, Fox45 rf30
Dayton......WKEF rf18

Saw Ashley Baracy doing...
15 Replies

1175 Views

Last post by MWmetalhead
Thu Jul 18, 2019 7:14 pm
Sputnik 1

Last post by k8jd « Tue Jul 16, 2019 5:40 pm
Replies: 1
by mars » Sat Jul 13, 2019 12:44 pm

Anyone know what type of antennas that those whips sticking out. How did they work, and what was the frequency used.

1 Replies

473 Views

Last post by k8jd
Tue Jul 16, 2019 5:40 pm
I bought the $1.99 flat HD antenna Menards had on sale this week...

Last post by k8jd « Sun Jul 14, 2019 5:33 pm
Replies: 3
by MWmetalhead » Sat Jul 13, 2019 9:02 pm

...check back to this thread for a detailed reception report by Monday evening. :)

Channels I can receive normally with my $10 RCA antenna and $20...

3 Replies

519 Views

Last post by k8jd
Sun Jul 14, 2019 5:33 pm
I'm stumped

Last post by k8jd « Sun Jul 14, 2019 5:08 pm
Replies: 2
by Mega Hertz » Sun Jul 14, 2019 8:57 am

I live in Brighton, right near the 23-96 interchange. I have a standard Pioneer VSX-D906S receiver in my music room DOWNSTAIRS and this morning,...

2 Replies

274 Views

Last post by k8jd
Sun Jul 14, 2019 5:08 pm
Grand Sable Dunes Bandscans +Audio

Last post by cckadlec « Mon Jul 08, 2019 11:49 am
Replies: 3
by cckadlec » Sun Jul 07, 2019 9:58 pm

Grand Sable Dunes is one of my 20 Lake Superior bandscan sites (two have yet to be added to my website as they are new and these things take time; I...

3 Replies

204 Views

Last post by cckadlec
Mon Jul 08, 2019 11:49 am
Irons, MI FM bandscan 6/29/19

Last post by cckadlec « Sun Jul 07, 2019 9:31 pm
Replies: 7
by ftballfan » Tue Jul 02, 2019 2:13 pm

88.1 – WHID Green Bay, WI (17kW @ 104 mi)
88.3 – WSMZ Crystal Valley (1.5kW @ 36 mi)
88.5 – WPVM Sturgeon Bay, WI (15kW @ 89 mi)
88.7 – WIAA...

7 Replies

351 Views

Last post by cckadlec
Sun Jul 07, 2019 9:31 pm
Interesting conditions last night and this morning

Last post by CK-722 « Sun Jul 07, 2019 5:19 pm
Replies: 1
by ftballfan » Sun Jul 07, 2019 3:41 pm

Last night and this morning, I had some strong tropo into central and eastern Wisconsin. The following were heard (besides the typical...

1 Replies

205 Views

Last post by CK-722
Sun Jul 07, 2019 5:19 pm
Worst Tower Sites For Getting Stuck-Water, Mud, Sand, Snow, Ice, Grade, etc.

Last post by Ed Joseph « Fri Jul 05, 2019 12:25 pm
Replies: 18
by CK-722 » Thu Jun 20, 2019 12:37 pm
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What are the worst tower sites for getting stuck in the Michigan/Great Lakes Region? Sites where a four wheel drive may not be enough? I got stuck...
18 Replies

908 Views

Last post by Ed Joseph
Fri Jul 05, 2019 12:25 pm
FCC Crackdown On Badly Maintained AM Facilities?

Last post by Ed Joseph « Mon Jul 01, 2019 8:58 pm
Replies: 8
by CK-722 » Thu Mar 07, 2019 8:06 pm

I've noticed several AMs that are suddenly quite a bit stronger than they have been in a while. It could be just the extremely cold weather.

But I...

8 Replies

949 Views

Last post by Ed Joseph
Mon Jul 01, 2019 8:58 pm
Coming Soon From Eton - Grundig

Last post by Ed Joseph « Mon Jul 01, 2019 8:40 pm
Replies: 9
by Turkeytop » Wed Jun 19, 2019 9:58 pm

13.1”L x 7.1”H x 2.5”W Weight: 4 lbs. 3 oz.

Wiping drool from my screen

9 Replies

624 Views

Last post by Ed Joseph
Mon Jul 01, 2019 8:40 pm
We're Ahead Of The Curve Again On TV Antennas!

Last post by RingtailedFox « Sun Jun 30, 2019 11:05 pm
Replies: 8
by Arthur Mometer » Wed May 01, 2019 8:35 am

TV Antennas are the latest thing for young adults as well as older Americans. Next rage will be the resurgence of landlines. Vacuum tubes are still...

8 Replies

708 Views

Last post by RingtailedFox
Sun Jun 30, 2019 11:05 pm
Anyone Observe WCXI Or WPON Testing Activity?

Last post by Big Signal « Wed Jun 26, 2019 11:36 pm
Replies: 20
by CK-722 » Thu Feb 28, 2019 3:07 pm
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Has anyone heard anything different on 1160 or 1460?

Something Nice To Say About WCXI 1160.

I was listening to Jimmy James on WCXI today. I was...
20 Replies

1781 Views

Last post by Big Signal
Wed Jun 26, 2019 11:36 pm
Rescan Time. It begins...

Last post by innate-in-you « Mon Jun 24, 2019 11:01 pm
Replies: 7
by SolarMax » Wed May 01, 2019 11:05 pm

WMYD is informing their viewers on air and on their website that viewers will have to do a rescan on June 1.
You'll need to rescan your TV to get...

7 Replies

740 Views

Last post by innate-in-you
Mon Jun 24, 2019 11:01 pm
FM E-skip opening 6-21

Last post by ftballfan « Sun Jun 23, 2019 12:30 pm
Replies: 4
by TomSanders » Fri Jun 21, 2019 6:56 pm

In Lakeport, the opening began just after noon and ended just before 2 PM. Stations heard:

92.1 WZEW Fairhope AL, classic rock 92-Zoo
92.9 WZGC...

4 Replies

348 Views

Last post by ftballfan
Sun Jun 23, 2019 12:30 pm
WLLZ HD signal

Last post by Big Signal « Tue Jun 18, 2019 6:30 am
Replies: 2
by Deleted User 15050 » Sun Jun 09, 2019 10:32 am

Anyone experiencing issues with WLLZ HD in Northern Macomb County, I Can’t lock in any HD signal in Romeo 106.7 is the only station with HD issues.

2 Replies

448 Views

Last post by Big Signal
Tue Jun 18, 2019 6:30 am
WJR vs. WWJ Fields at Utica, MI

Last post by Rich « Sat Jun 15, 2019 10:06 am
Replies: 22
by Rich » Sun Jun 09, 2019 8:15 am
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Below is a table showing the calculated, daytime fields from WJR and WWJ in Utica, MI.

Just wondering if anyone owning one of the ultralight...
22 Replies

1315 Views

Last post by Rich
Sat Jun 15, 2019 10:06 am
Schematic Diagram For Realistic STA-111

Last post by CK-722 « Thu Jun 13, 2019 11:49 pm
Replies: 5
by CK-722 » Mon May 13, 2019 8:08 pm

Does anyone have any ideas for finding a schematic for a Realistic STA-111 Receiver? The relay system for preventing the amplifiers from being...

5 Replies

493 Views

Last post by CK-722
Thu Jun 13, 2019 11:49 pm
WTVN Back To 5 kW DA-N?

Last post by CK-722 « Thu Jun 06, 2019 3:36 am
Replies: 1
by CK-722 » Wed Jun 05, 2019 9:55 pm

I just returned from the Straits Area and WTVN was booming in up there at Night. I suspect that they have returned to 5 kW DA-N. Anyone else notice...

1 Replies

287 Views

Last post by CK-722
Thu Jun 06, 2019 3:36 am
Most distant AM/FM/TV signal you ever tuned in?

Last post by innate-in-you « Mon Jun 03, 2019 11:25 pm
Replies: 43
by mtburb » Wed Mar 27, 2019 10:05 pm
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Another pre-crash thread recreation. As in the old thread, list the most distant AM, FM and TV signal you've ever tuned in.

From my current memory,...
43 Replies

2272 Views

Last post by innate-in-you
Mon Jun 03, 2019 11:25 pm
AM Radio Signal Patterns

Last post by Turkeytop « Mon Jun 03, 2019 6:59 pm
Replies: 11
by Turkeytop » Sun May 26, 2019 9:29 pm

A coule of years ago, someone posted these links to a really great website that displayed the daytime and nighttime patterns for every AM station on...

11 Replies

797 Views

Last post by Turkeytop
Mon Jun 03, 2019 6:59 pm

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