Mitsubishi TriniScope Color TV

[Robert Grant]

Originally Posted by John Folsom

HI VKers.

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The Japanese channel assignments are a bit different. Here are the pairings we were able to make; US/Japan channel assignments 13/11, 2/12, 12/10, 11/9, 10/8,9/7, 8/6, 7/5. Channels 4,3,2, and 1 on the trinescope could be tuned to receive a signal from the cable, but these were cable channels which did not line up with the standard US 2-13 assignments.

<snip>

Japanese channels 1 through 4 were/are actually broadcast channels.

1, 2 and 3 are particulary notable for being 90-108 MHz (in the FM broadcast band in most of the world), which explains why Japanese FM is 76-90 MHz.

This was likely done because sporadic-E skip is especially frequent in Japan. The occurrence of sporadic-E drops off dramtically with increasing frequency, and analog television (AM video) is considered less robust under interference than FM radio.

[tubesrule]

Cool set John. I hope you are able to bring it to next years convention.

BTW, your WC-01 has the Japanese RF channels programmed into it under "System M3" so you should be able to provide a signal for all channels on the set.

Darryl

[John Folsom]

Robert, Thanks for the info on Japanese channels. I suspected some of the 1-4 channels were somewhere in the FM band. The local cable company uses these FM broadcast frequencies to squeeze in a few more channels.

Darryl, thanks! I had not even thought to try that. Should have realized the WC-01 can do ANYTHING!