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Search found 603 matches

by k8jd
Sun Aug 13, 2023 2:12 pm
Forum: Engineering & DX'ing
Topic: TV AMP
Replies: 9
Views: 1331

Re: TV AMP

I would try a bigger and higher antenna before investing in a preamp. A preamp may be best for overcoming the losses of an extra long coax line from ant to TV. Like a circuitous routing for a Coax cable thru the house , before it gets to the TV receiver. An other example, when I moved to the far sub...
by k8jd
Tue Aug 08, 2023 11:58 am
Forum: Engineering & DX'ing
Topic: Hum in am signal
Replies: 9
Views: 1376

Re: Hum in am signal

I have worked with remote controlled Two Way Radio base stations with telco links for 4 decades+ and even a high resistance leakage on one side of a DC pair can induce hum into the audio. A "split pair" with one wire from one twisted pair in a cable, to the other wire from a different pair connected...
by k8jd
Wed Jul 19, 2023 6:53 pm
Forum: Engineering & DX'ing
Topic: AM Radio might have 10 more years
Replies: 44
Views: 6603

Re: AM Radio might have 10 more years

When I tune in a noisy signal I just listen harder :D It may be DX!
by k8jd
Wed Jul 19, 2023 6:47 pm
Forum: Engineering & DX'ing
Topic: Another antenna question
Replies: 6
Views: 1167

Re: Another antenna question

I hear the AM pretty well on my Amateur radio recievers with a 250 ft Dipole but I was looking for some FMHD reception as welll with a JVC aftermarket auto radio . Just hoping to get away from the noise on AM. The high Z input for a car radio, on the AM side, is a problem. 50 or 75 Ohm coax feedline...
by k8jd
Mon Jul 17, 2023 8:00 pm
Forum: Engineering & DX'ing
Topic: 910 WFDF
Replies: 11
Views: 1660

Re: 910 WFDF

I got an earfull of Chicago radio history from some Radio folks I met there and worked with at WOPA. (WOPA is now history)
by k8jd
Mon Jul 17, 2023 7:52 pm
Forum: Engineering & DX'ing
Topic: 910 WFDF
Replies: 11
Views: 1660

Re: 910 WFDF

OK finally fouund the third AM site, a mile west of Dort, down Bristol Rd. Looks all dug up where the towers once were , forgot that it was WTRX having the site right off Dort Hiway, with two short and one tall tower. !
Getting old and forgetting stuff :D
Your info is Gold !
by k8jd
Mon Jul 17, 2023 6:59 pm
Forum: Engineering & DX'ing
Topic: 910 WFDF
Replies: 11
Views: 1660

Re: 910 WFDF

Recalling Flint AM Stations The tall tower of the three seems to have an FMBC antenna on top now. Pretty sure it's been there a while... I Get up that way now and then and can still see the tall and two short towers. OK.... I now recall the towers right at Dort hiway were WFNT 1470 and the three to...
by k8jd
Fri Jul 14, 2023 6:39 pm
Forum: Engineering & DX'ing
Topic: Another antenna question
Replies: 6
Views: 1167

Another antenna question

I have been considering running more coax to get my AM/FM 36 " auto antenna away from the house and noise on AM. Currently it uses the incorperated high Z (maybe 90+ Ohms) Shieded fine wire coax and a 12 ft extension coax made for the auto radio design.. I was thinking of using some Cable TV grade R...
by k8jd
Sun Jul 09, 2023 2:29 pm
Forum: Engineering & DX'ing
Topic: CKSY completely wiping out Royal Oak Twp translator at 94.3
Replies: 5
Views: 1076

Re: CKSY completely wiping out Royal Oak Twp translator at 94.3

I’m spending the weekend at the family cottage outside of Lexington. The WBTI stick is less than 2 miles from me, so it usually booms in. But last night, it was struggling and fading in and out. Something was making its way in but I couldn’t identify it. This morning I did a bandscan on my Eton Min...
by k8jd
Sun Jul 09, 2023 2:27 pm
Forum: Engineering & DX'ing
Topic: CKSY completely wiping out Royal Oak Twp translator at 94.3
Replies: 5
Views: 1076

Re: CKSY completely wiping out Royal Oak Twp translator at 94.3

W232CA is listed as 99 Watts but up 899 Ft agl. Signal probably flies over your head :D
by k8jd
Fri Jun 30, 2023 7:56 pm
Forum: Engineering & DX'ing
Topic: AM Radio might have 10 more years
Replies: 44
Views: 6603

Re: AM Radio might have 10 more years

MotorCityRadioFreak wrote:
Sun Sep 04, 2022 7:58 pm
Other than 950, I can't say I listen.
I listen for bad signals and DX :D
by k8jd
Fri Jun 30, 2023 7:31 pm
Forum: Engineering & DX'ing
Topic: Seven tower array
Replies: 8
Views: 1295

Re: Seven tower array

WTKA is far enough from any major road , it's difficult to spot.
I see 4 towers at WTKA
by k8jd
Fri Jun 30, 2023 7:28 pm
Forum: Engineering & DX'ing
Topic: Night time FM E-Skip
Replies: 4
Views: 1111

Re: Night time FM E-Skip

E-layer can happen any time of day, but it's seasonal.
by k8jd
Thu Jun 22, 2023 8:26 pm
Forum: Engineering & DX'ing
Topic: AM directional arrays
Replies: 4
Views: 1130

Re: AM directional arrays

Colonel Flagg wrote:
Thu Jun 08, 2023 1:54 pm
How about posting a link to that discussion.

Sounds interesting.
All I can give you is QRZ.com...
I started reading the pages by Carl Smith and got lost in the math by page 40 !
by k8jd
Sun Jun 18, 2023 6:45 pm
Forum: Engineering & DX'ing
Topic: Televes Hi-VHF Yagi
Replies: 34
Views: 4496

Re: Televes Hi-VHF Yagi

CKLW-TV had a much better signal from the Riverside Dr. tower. Too bad they couldn't have just put a tower or building up there somewhat taller than the Ren Cen. But moving was also part of a Canadian government restriction of Canadian stations appealing to a US audience and advertisers that began ...