Engineering & DX'ing

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Last post

Trials of restoring Heathkit DX-35

Last post by audiophile « Sun Jan 26, 2020 8:48 am
Replies: 27
by Ed Joseph » Tue Nov 26, 2019 3:15 pm
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I was given an old DX-35 CW/AM transmitter by a friend. This thing has been sinking my time for the last 2 months.

It had several mods done to it,...
27 Replies

1013 Views

Last post by audiophile
Sun Jan 26, 2020 8:48 am
Radio DX from my work's private plane

Last post by audiophile « Sat Jan 25, 2020 9:21 am
Replies: 2
by radio stain » Fri Jan 24, 2020 9:59 pm

Over SE Kentucky near the Tennessee line I picked up 104.7 WTUE from Dayton on my radio app on my phone.

Also had 92.5 WBKR from Owesboro/Evansville...

2 Replies

71 Views

Last post by audiophile
Sat Jan 25, 2020 9:21 am
Scanners

Last post by Turkeytop « Thu Jan 23, 2020 10:10 pm
Replies: 10
by Turkeytop » Sat Nov 16, 2019 8:32 pm

Are any of you scanner enthusiasts? It's one aspect of the radio hobby I've never tried but might want to introduce myself to.

I don't want to...

10 Replies

642 Views

Last post by Turkeytop
Thu Jan 23, 2020 10:10 pm
WWJ signal problems? (+ WJR audio distortion)

Last post by CK-722 « Wed Jan 22, 2020 10:27 am
Replies: 61
by SolarMax » Sat Sep 21, 2019 9:58 am
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Was trying to listen to WWJ this morning, ahead of the THREE HOUR :eek UM pregame block. Very weak signal, almost overwhelmed by local electrical...
61 Replies

3419 Views

Last post by CK-722
Wed Jan 22, 2020 10:27 am
Most distant AM/FM/TV signal you ever tuned in?

Last post by n8fnr « Sat Jan 18, 2020 4:38 pm
Replies: 56
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,...
56 Replies

4222 Views

Last post by n8fnr
Sat Jan 18, 2020 4:38 pm
WLNS/WLAJ RF14

Last post by ftballfan « Fri Jan 17, 2020 10:40 am
Replies: 3
by windsor » Thu Jan 16, 2020 1:37 pm

Since WLNS/WLAJ moved to RF14 I have been getting a weird signal from them everyday at all hours.But cant get a lock.

Comes in like gangbusters for...

3 Replies

197 Views

Last post by ftballfan
Fri Jan 17, 2020 10:40 am
Most FM Class Changes For A Single Facility

Last post by ftballfan « Thu Jan 16, 2020 8:20 am
Replies: 3
by Ben Zonia » Tue Jan 14, 2020 3:11 pm

I believe WCXT...WHTS holds the record for most Class changes, for changing from Class C, to Class C1, to Class C2, to Class B.

It went from Class C...

3 Replies

194 Views

Last post by ftballfan
Thu Jan 16, 2020 8:20 am
Passive Repeaters On Hilltops

Last post by CK-722 « Wed Jan 15, 2020 3:35 pm
Replies: 8
by CK-722 » Wed Jan 08, 2020 10:45 am

Say you put a high gain YagiLog to receive a signal, then feed it into another high gain YagiLog pointed in the opposite direction on a hilltop. How...

8 Replies

362 Views

Last post by CK-722
Wed Jan 15, 2020 3:35 pm
CCrane FM Transmitter 2

Last post by CK-722 « Tue Jan 14, 2020 5:48 pm
Replies: 11
by bmw » Sat Jan 11, 2020 12:21 pm

I've always wanted one of these but didn't want to spend the $60 retail price. Finally found one used on Ebay for $20 plus shipping so I took a...

11 Replies

405 Views

Last post by CK-722
Tue Jan 14, 2020 5:48 pm
DIY antenna designs for attic?

Last post by km1125 « Sun Jan 05, 2020 2:56 pm
Replies: 8
by km1125 » Fri Jan 03, 2020 7:18 pm

Wondering if there are any updated designs for DIY UHF antenna that focus on the 470-600MHz frequencies that might be optimized over the old 470-890...

8 Replies

424 Views

Last post by km1125
Sun Jan 05, 2020 2:56 pm
Massive WOMC interference in Brighton

Last post by paul8539 « Sat Jan 04, 2020 4:36 pm
Replies: 19
by Mega Hertz » Sat Dec 28, 2019 3:45 pm
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WOMC was getting its ass kicked by WCZY My 104.3 in Mt. Pleasant. Rather strange occurrence as WOMC is usually a steady reception.
19 Replies

877 Views

Last post by paul8539
Sat Jan 04, 2020 4:36 pm
WWV and another adjacent station

Last post by paul8539 « Sat Jan 04, 2020 4:28 pm

by paul8539 » Sat Jan 04, 2020 4:28 pm

On New Years Eve just before 7PM, I tuned into WWV on 5 MHZ to listen to the new year turnover, 2355 DEC 31 to 0003 JAN 1. At 2359, some strong...

0 Replies

210 Views

Last post by paul8539
Sat Jan 04, 2020 4:28 pm
Realistic DX 370

Last post by Turkeytop « Sat Dec 28, 2019 9:00 pm
Replies: 4
by Turkeytop » Fri Dec 20, 2019 8:29 pm

This is coming up on 25 years old next week. My wife gave it to me for Christmas back in 1994.

That was a big deal. We were pretty hard up back...

4 Replies

307 Views

Last post by Turkeytop
Sat Dec 28, 2019 9:00 pm
Reception of others' portable FM transmitters

Last post by cckadlec « Wed Dec 25, 2019 12:20 pm
Replies: 1
by bmw » Tue Dec 24, 2019 4:09 pm

So yesterday I was driving down US-23, flipping through the stations, and I heard a dead carrier on 107.3 FM. Complete silence, quite strong signal,...

1 Replies

199 Views

Last post by cckadlec
Wed Dec 25, 2019 12:20 pm
Lake Michigan FM Bandscans

Last post by cckadlec « Sun Dec 22, 2019 7:27 am
Replies: 20
by cckadlec » Sun Sep 29, 2019 11:36 pm
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With my project of conducting full bandscans at 80 beaches on the Great Lakes now completed, I'm working on typing out the data from the most recent...
20 Replies

1143 Views

Last post by cckadlec
Sun Dec 22, 2019 7:27 am
Tower In Clarkston M-15 and Dixie Highway

Last post by CK-722 « Sun Dec 15, 2019 2:40 pm
Replies: 3
by CK-722 » Fri Dec 13, 2019 11:48 pm

There's a fairly new self supporting tower behind Bowman Chevrolet In Clarkston at M-15 and Dixie Highway. It is probably about 120 feet high. The...

3 Replies

317 Views

Last post by CK-722
Sun Dec 15, 2019 2:40 pm
HD Radio Sync

Last post by audiophile « Mon Dec 09, 2019 6:28 am
Replies: 2
by WOHO » Sun Dec 08, 2019 6:26 pm

Drove through Downriver Friday night playing around to see how long, if at all, I could hold HD lock on the FM's (as even WWJ couldn't stay locked,...

2 Replies

192 Views

Last post by audiophile
Mon Dec 09, 2019 6:28 am
Realistic DX 160

Last post by Ed Joseph « Sun Dec 08, 2019 6:24 pm
Replies: 8
by Turkeytop » Fri Nov 01, 2019 9:38 pm

This was another one I lusted after, back in the day. Early 1970s after I was married.

It sold for about $150. Far more than a week's pay. I...

8 Replies

526 Views

Last post by Ed Joseph
Sun Dec 08, 2019 6:24 pm
Heahkit MR-18 Direction Finder

Last post by CK-722 « Sat Dec 07, 2019 9:57 am

by CK-722 » Sat Dec 07, 2019 9:57 am

Also, an interesting map of triangulation using WMAQ, WTMJ, and WHFB. Boaters have long been on the forefront of navigation toys.

0 Replies

212 Views

Last post by CK-722
Sat Dec 07, 2019 9:57 am
Lake Huron FM Bandscans

Last post by CK-722 « Thu Dec 05, 2019 12:40 pm
Replies: 13
by cckadlec » Sun Nov 24, 2019 7:18 pm

I will post some of the bandscans from the shores of Lake Huron and Georgian Bay in this space. While the scans are finished, the content has not yet...

13 Replies

472 Views

Last post by CK-722
Thu Dec 05, 2019 12:40 pm
Anybody Have Any Experience With Fixing d'Arsonval Signal/Battery Strength Meters/Circuits?

Last post by WOHO « Wed Dec 04, 2019 5:02 pm
Replies: 4
by CK-722 » Tue Dec 03, 2019 2:49 am

Got a used Sony Portable on eBay. It works well considering it is nearly 50 years old. I had a similar Sony Portable with a similar issue-the...

4 Replies

208 Views

Last post by WOHO
Wed Dec 04, 2019 5:02 pm
Tecsun PL880 Tuning Tips

Last post by Turkeytop « Sat Nov 30, 2019 8:02 pm
Replies: 5
by CK-722 » Sat Nov 30, 2019 10:03 am

The Tecsun PL880 has a fine tuning control. On FM BC, rather than the typical 200, 100, or 50 kHz steps, the fine tuning is in 10 kHz steps. This...

5 Replies

217 Views

Last post by Turkeytop
Sat Nov 30, 2019 8:02 pm
WWV Time To Turn The Clocks Back

Last post by n8fnr « Fri Nov 29, 2019 11:45 pm
Replies: 15
by CK-722 » Sun Nov 03, 2019 2:31 am
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Time to turn back time. Headed to get the portable SW to tune in WWV.
15 Replies

848 Views

Last post by n8fnr
Fri Nov 29, 2019 11:45 pm
Metro Detroit CB

Last post by Mike Oxlong « Fri Nov 29, 2019 5:07 am
Replies: 28
by syntheticexctasy » Mon Nov 05, 2018 10:05 am
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Feel free to remove if discussing in the wrong forum...

I recently dusted off my old CB and antenna and have been listening a lot, talking a bit....
28 Replies

3282 Views

Last post by Mike Oxlong
Fri Nov 29, 2019 5:07 am
FCC to allow All-Digital on AM Band

Last post by n8fnr « Thu Nov 28, 2019 10:42 pm
Replies: 14
by RingtailedFox » Sat Nov 23, 2019 3:26 pm

Looks like the experiment led by WWFWD (AM 820 Frederick, Virginia) was a success... and definitely interesting enough to have the FCC take a deeper...

14 Replies

612 Views

Last post by n8fnr
Thu Nov 28, 2019 10:42 pm
Allendale, MI AM bandscan (midday 11/17/19)

Last post by ftballfan « Mon Nov 18, 2019 5:06 pm

by ftballfan » Mon Nov 18, 2019 5:06 pm

540 – WAUK Jackson, WI
560 – WIND Chicago, IL
580 – WILL Urbana, IL
580 – WTCM Traverse City, MI
590 – WKZO Kalamazoo, MI
610 – very weak (likely...

0 Replies

248 Views

Last post by ftballfan
Mon Nov 18, 2019 5:06 pm
Mini DXpedition 2019

Last post by Turkeytop « Tue Nov 05, 2019 4:29 pm
Replies: 7
by Turkeytop » Sun Oct 27, 2019 9:46 pm

Every fall I pick a day and head out into the country for a few hours to do some DXing on the short wave bands. I take along a radio or two and some...

7 Replies

471 Views

Last post by Turkeytop
Tue Nov 05, 2019 4:29 pm
Your best ever car radio?

Last post by Rich « Tue Nov 05, 2019 5:21 am
Replies: 61
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...
61 Replies

3296 Views

Last post by Rich
Tue Nov 05, 2019 5:21 am
Heathkit Mohican

Last post by k8jd « Sat Nov 02, 2019 1:11 pm
Replies: 10
by Turkeytop » Tue Oct 29, 2019 10:15 pm

Back in the late 60s I wanted this so bad, but couldn't even dream about it. $89 was more than a week's pay for me and I didn't have a nickel to...

10 Replies

550 Views

Last post by k8jd
Sat Nov 02, 2019 1:11 pm
Lake Superior FM Bandscans

Last post by cckadlec « Mon Oct 28, 2019 9:08 pm
Replies: 4
by cckadlec » Fri Oct 25, 2019 4:54 pm

I will post a handful of Lake Superior bandscans from this summer in this thread. Only Michigan scans were conducted this summer either as repeats at...

4 Replies

386 Views

Last post by cckadlec
Mon Oct 28, 2019 9:08 pm
WJR-WWJ Daytime Groundwave vs. Distance Comparison

Last post by CK-722 « Sat Oct 26, 2019 4:33 pm
Replies: 20
by Rich » Sun Oct 20, 2019 11:40 am
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Below is a comparison of the daytime groundwave fields of WJR and WWJ* for a range of 10 to 60 radial miles from their respective transmit sites....
20 Replies

974 Views

Last post by CK-722
Sat Oct 26, 2019 4:33 pm
Fleming Valves...

Last post by CK-722 « Wed Oct 23, 2019 11:06 am
Replies: 15
by CK-722 » Sun Oct 20, 2019 12:28 pm
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Fleming Valves? Or A Far Out Cosmic Alien Girl Group?
15 Replies

664 Views

Last post by CK-722
Wed Oct 23, 2019 11:06 am
WWJ in Kentucky

Last post by TheForce « Sat Oct 19, 2019 8:38 pm
Replies: 4
by paul8539 » Tue Oct 15, 2019 8:23 pm

I was coming back from a conference last month in Tennessee, and I was tuning around the AM radio in the car. I managed to pick up WWJ, not 100%, but...

4 Replies

448 Views

Last post by TheForce
Sat Oct 19, 2019 8:38 pm
SHortwave pirate stations

Last post by paul8539 « Tue Oct 15, 2019 8:25 pm
Replies: 31
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...
31 Replies

2236 Views

Last post by paul8539
Tue Oct 15, 2019 8:25 pm
FCC FM auction on April 28, 2020

Last post by Colonel Flagg « Mon Oct 14, 2019 5:06 pm
Replies: 4
by MWmetalhead » Fri Oct 11, 2019 7:05 am

Allotments in or near Houghton, Mt. Pleasant (Lake Isabella), Ludington (Custer), Manistee (Onekama), Menominee (Carney), and Bad Axe (Pigeon) are on...

4 Replies

499 Views

Last post by Colonel Flagg
Mon Oct 14, 2019 5:06 pm
Fillings

Last post by CK-722 « Sat Oct 12, 2019 11:50 pm
Replies: 6
by sfpcc » Thu Oct 10, 2019 10:43 pm

I'm probably risking a lot of flak for posting this but what the heck. There was an episode of Gilligan's Island where Gilligan received radio...

6 Replies

441 Views

Last post by CK-722
Sat Oct 12, 2019 11:50 pm
Fla dx king Sarasoia

Last post by Turkeytop « Mon Oct 07, 2019 8:11 pm
Replies: 12
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...

12 Replies

761 Views

Last post by Turkeytop
Mon Oct 07, 2019 8:11 pm
600-mile lake tropo (8/24)

Last post by innate-in-you « Sat Sep 21, 2019 12:16 pm
Replies: 14
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...

14 Replies

773 Views

Last post by innate-in-you
Sat Sep 21, 2019 12:16 pm
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

241 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

598 Views

Last post by CK-722
Fri Sep 13, 2019 12:27 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

598 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

927 Views

Last post by F-Squared
Fri Sep 06, 2019 7:11 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

263 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

383 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

1719 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

1921 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

269 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

785 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

524 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

433 Views

Last post by Mega Hertz
Wed Aug 14, 2019 10:29 pm

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