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Go Back   SailNet Community > On Board > Gear & Maintenance > Electronics > Getting AM radio stations on VHF Radio
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Thread: Getting AM radio stations on VHF Radio Reply to Thread
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Topic Review (Newest First)
07-01-2010 03:23 PM
sailingdog VHF radios have three modes, at least in the USA... USA, Canadian and International IIRC.
07-01-2010 11:58 AM
L124C
Quote:
Originally Posted by wind_magic View Post
What an interesting ending to this thread! I didn't even know my radios had an international mode, I am going to check that out. Learn something new every day. Thank you for getting back to us and letting us all know how it turned out. That is funny that both radios had the same issue!
Yes. It makes me wonder if some radios are sold in "I" mode and few people know the difference. As I indicated, the radio performed perfectly on every other channel. Also, I didn't have the problem when the boat was berthed much farther from the transmitters. However, I could have accidentally switched modes since then. In any case, the manual on my radio certainly should have paid more attention to the distinction between modes.
BTW: When I post a question on a forum and others attempt to help me find a solution, I feel I'm obligated to report the outcome. Hopefully, others will benefit, as many have helped me. OK....I'll get off the soap box now!
06-30-2010 08:25 PM
wind_magic
Quote:
Originally Posted by L124C View Post
Turns out my VHF radio was in International ("I") mode and Channel 22 and 33 are on the same frequency as the station in International mode. It should be in USA ("U") mode. The FCC rep figured it out. The VHF radio manual hardly mentions International mode. In fact, I had to experiment with the radio to change the mode. Ironically, this means that the radio on the other boat (which I used to confirm it wasn't just my radio) was also tuned to International! Oh Well...At least I can put my "Tin Foil Hat" back on. I've been missing it!
What an interesting ending to this thread! I didn't even know my radios had an international mode, I am going to check that out. Learn something new every day. Thank you for getting back to us and letting us all know how it turned out. That is funny that both radios had the same issue!
06-30-2010 03:39 PM
L124C
Problem Solved!

Turns out my VHF radio was in International ("I") mode and Channel 22 and 33 are on the same frequency as the station in International mode. It should be in USA ("U") mode. The FCC rep figured it out. The VHF radio manual hardly mentions International mode. In fact, I had to experiment with the radio to change the mode. Ironically, this means that the radio on the other boat (which I used to confirm it wasn't just my radio) was also tuned to International! Oh Well...At least I can put my "Tin Foil Hat" back on. I've been missing it!
06-28-2010 12:05 PM
L124C
Quote:
Originally Posted by L124C View Post
In the meantime, I notified the CG of the situation. They seem courteous, yet somewhat indifferent.
Boy was I wrong! Called the CG Friday, and the FCC called me Monday morning! FCC suspects it's the FM Broadcast that I'm receiving. I didn't even know KCBS had an FM signal. Anyway, the FCC guy couldn't have been nicer. Great to see everybody on top of things and without any attitude for a change. Sometimes it's nice to be wrong! Went to the Harbor masters office Saturday (probably 1/4 South of my boat). Their channel 22 and 23 were silent.
06-26-2010 04:13 PM
L124C
Can you hear me now?

At the engineers request I went to the boat and listened to the VHF while he made some adjustments. I thought they might have had some effect, but he didn't seem to buy it. He is going to try some other things, and get back to me next week. In the meantime, I notified the CG of the situation. They seem courteous, yet somewhat indifferent. I'll post the outcome. I'm just happy it's not my radio!
06-26-2010 04:10 PM
L124C At the engineers request I went to the boat and listen to the VHF while he made some adjustments. I thought they might have had some effect, but he didn't seem to buy it. He is going to try some other things, and get back to me next week. In the meantime, I noticed the CG of the situation. They seem courteous, yet somewhat indifferent. I'll post the outcome. I'm just happy the problem isn't in my radio!
06-25-2010 04:07 PM
ottos Interesting - that station does seem to have two registered frequencies that are in the area of interest -

San Francisco County, California (CA) Scanner Frequencies and Radio Frequency Reference

160.25000 KCBS Vremote KCBS VHF remote feed FM Media
170.15000 KCBS VHF2 KCBS VHF2 remote feed FM Media
06-25-2010 04:06 PM
hellosailor Oh yeah, the FCC can give them a very nice penalty fine for "spurious emissions" and interfering with a government safety operation. But the odds are, everyone will play nice and the CBS engineers really *do* want to clean it up.

Usually the engineers are quite proud about maintaining the equipment, but the beancounters in management won't let them spend a cent until something "Must" be spent to remain on the air. FCC violations count as "Must" so that actually makes the engineers happy.
06-25-2010 03:25 PM
L124C
Quote:
Originally Posted by ottos View Post

I would ask the CG (via land line) if they are aware of the issue. You could also call the radio station and ask to talk to the chief engineer.
Yeah... this occurred to me as soon as I made the post regarding contacting the Harbormaster! Emailed the station and received the following response:

"Thank you for contacting K*** and reporting our signal on marine channels 22A and 23A.
We’re looking into it. K*** operates two licensed VHF transmitters that carry our programming
and are used to “cue” reporters in the field in cars or aircraft. Of course, they’re not assigned to
Marine radio frequencies, but perhaps one has developed a problem.
In a quick test here at the studio, we can’t hear the interference, but we’re doing testing in
other areas during the next couple of days.
It would be a help to us if we could coordinate testing with you. We have remote control of
both transmitters. If you were available to work with us, we could shut them down one ata time and determine which of them might be causing the problem.
We thank you for letting us know about this, and we want you to know that we take this problem very seriously and aim to fix it promptly.
Could you please give me a call at the number below?
We’d be grateful for your further help, as we are for the effort you’ve already made to contact us."

Nice to see someone care for a change (though, I assume the idea of the FCC and Coast Guard being contacted might have expedited the response!). I'll post the results of the test.
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