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Search found 360 matches

by k8jd
Tue Jan 19, 2021 4:15 pm
Forum: Engineering & DX'ing
Topic: Below 88 mHz
Replies: 4
Views: 203

Re: Below 88 mHz

Well I no longer hear any Ch 6 TV analog FM audio on 87.75 MHz ! have'nt in a long time.
Listened again last night but heard no music on channels below 88.1 mHz, BUT have not used the outside antenna to listen again.
by k8jd
Tue Jan 19, 2021 4:10 pm
Forum: Engineering & DX'ing
Topic: Field Intensity at 1 km vs. Transmitter Power
Replies: 2
Views: 98

Re: Field Intensity at 1 km vs. Transmitter Power

I am glad there are no AMBC transmitters with in 1 kM of me :D
The two station Wixom site is 8.55 KM from me. :-D
I think the 1160 transmitter is running 15 kW now.
by k8jd
Sun Jan 17, 2021 4:23 pm
Forum: Engineering & DX'ing
Topic: Below 88 mHz
Replies: 4
Views: 203

Below 88 mHz

A few nights ago I could not sleep so I put on the headphones and got my Teksun PL880 going. Surprized to hear some signal below 88.1, maybe 87.7? Did not listen long enough to hear any iD , just some pop music playing. Before DIGI TV I could hear ch 6 in Lansing audio channel there. Anyone know if ...
by k8jd
Thu Jan 07, 2021 12:22 pm
Forum: Engineering & DX'ing
Topic: MW DX
Replies: 21
Views: 714

Re: MW DX

RE Auto Radios I have a Ford F150, several years old. It has a HD radio that sounds good on FM, stubby rooftop antenna that picks up Satellite, 3 ft whip on the side fender for terrestrial reception. . On free sample days I get a few Sat channels but the audio quality was dissappointing. The AM sen...
by k8jd
Thu Jan 07, 2021 12:11 pm
Forum: Engineering & DX'ing
Topic: Downriver AM transmitters
Replies: 46
Views: 2347

Re: Downriver AM transmitters

Isn't 910 down there too? Didn't they move there after moving out of Flint? It's in Carleton (an 8 tower array which is about half the size of Carleton itself). It booms at my in-laws house, right in their crosshairs. It actually has only a fair signal in the Eastern portions of the Detroit area. F...
by k8jd
Thu Jan 07, 2021 12:07 pm
Forum: Engineering & DX'ing
Topic: Downriver AM transmitters
Replies: 46
Views: 2347

Re: Downriver AM transmitters

Since Canada is shutting down Many high power AM stations, switching to FM , you think they could relax the protection rules from the US AM statons. I guess they expect the hunter/trappers who live in the far bush to toss out am radios and get satrellite radios. FM just does not usually go very far ...
by k8jd
Tue Jan 05, 2021 1:34 pm
Forum: Engineering & DX'ing
Topic: MW DX
Replies: 21
Views: 714

Re: MW DX

My best MW DX from here at home was Trans World Radio in Bonaire. But it was always competing with CKLW for dominance on the frequency and was unlistenable. My best, verified MW DX would be KFI in LA and KSL in Salt Lake City. KSL was easy to hear in the 60's when WJJD in Chicago went off the air a...
by k8jd
Tue Jan 05, 2021 1:27 pm
Forum: Engineering & DX'ing
Topic: MW DX
Replies: 21
Views: 714

Re: MW DX

My best MW DX from here at home was Trans World Radio in Bonaire. But it was always competing with CKLW for dominance on the frequency and was unlistenable. My best, verified MW DX would be KFI in LA and KSL in Salt Lake City. KSL was easy to hear in the 60's when WJJD in Chicago went off the air a...
by k8jd
Tue Dec 29, 2020 2:04 pm
Forum: Engineering & DX'ing
Topic: Best setup for reliable radio communications over 30 or 60 miles?
Replies: 26
Views: 596

Re: Best setup for reliable radio communications over 30 or 60 miles?

AGAIN the problem with VHF marine band is that "radio horizon", you need a high tower and gain antenna and still may not be able to reach 60 miles.
VHF marine radios are FM and only up to 25 W , FM is a very poor mode for weak signal work.
by k8jd
Mon Dec 28, 2020 3:35 pm
Forum: Engineering & DX'ing
Topic: MW DX
Replies: 21
Views: 714

Re: MW DX

About my best MW DXing was done when on a Hawaiian vacation , on the Big Island.
I had my GE Superradio out in the middle of a golf course late at night and could hear stations in BC, Canada and in Australia ! Also heard a 5 kW statio in American Samoa !
by k8jd
Mon Dec 28, 2020 3:12 pm
Forum: Engineering & DX'ing
Topic: Best setup for reliable radio communications over 30 or 60 miles?
Replies: 26
Views: 596

Re: Best setup for reliable radio communications over 30 or 60 miles?

Direct wave on 27 MHz does not get much more than 20 miles and you need high power (a lot more than the 5 W legal power) and directional antennas to reach the radio horizon/ NVIS has been the best solution I have experienced , on 3-5 MHz , the result is pretty reliable , good overall coverage in the...
by k8jd
Sat Dec 26, 2020 2:43 pm
Forum: Engineering & DX'ing
Topic: Best setup for reliable radio communications over 30 or 60 miles?
Replies: 26
Views: 596

Re: Best setup for reliable radio communications over 30 or 60 miles?

Since VHF or UHF is only reliable on a line-of-sight at any given moment, And HIgh towers and fancy "gain antennas" are required, I would choose the 60 M HF band , where you can use a simple wire dipole, (my 88 ft long dipole is hanging in trees around 30 ft up) no tower or big complicated aluminum ...
by k8jd
Wed Dec 23, 2020 4:28 pm
Forum: Engineering & DX'ing
Topic: A little help with plugging away
Replies: 14
Views: 517

Re: A little help with plugging away

Looks like a VGA video to old style stereo audio and composite video outputs.
Some things in computer video tech have changed from year to year leaving a lot of fine equipment in the scrap heap or Parts bin.
by k8jd
Mon Dec 21, 2020 12:27 pm
Forum: Engineering & DX'ing
Topic: A little help with plugging away
Replies: 14
Views: 517

Re: A little help with plugging away

I got a converter box so I could plug my old Nintendo game into the HDMI input on a "Modern" TV receiver ! My grown sons still love to play the Zelda games when we get together !!
Are you trying to do something like that ?
by k8jd
Tue Dec 01, 2020 4:59 pm
Forum: Engineering & DX'ing
Topic: Scanners
Replies: 77
Views: 5337

Re: Scanners

144-148 is the 2M amateur band. I have had a few scanners that have AWFUL image rejection and you hear signals that are 10 to 22 MHz off where you are tuned , depending on the unit's I.F freq.