UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

G6Tanuki · 14th Jun 2019, 6:18 pm

I'm surprised your IC-910 doesn't have CTCSS - surely Icom would have designed for world-markets. CTCSS has been the standard access-mode in the US since repeaters started emerging back there in the 60s, and I doubt Icom would knowingly have excluded themselves from the US market by producing a non-CTCSS-capable radio.

As to the developing future of 2M - when we were given access to the 146-147MHz range a few years back, I had sort-of hoped that because there was no extant bandplan it might have triggered the adoption of (and/or experimentation with) some more-modern technologies [spread-spectrum, high-quality digital audio/TV] but this sadly does not seem to have happened. A shame - you can fit good-quality colour TV in a 500KHz bandwidth when using modern CODECs and relatively little processing-power.

14th Jun 2019, 6:18 pm	#21
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,007	Re: Save our 2 Metre Band. I'm surprised your IC-910 doesn't have CTCSS - surely Icom would have designed for world-markets. CTCSS has been the standard access-mode in the US since repeaters started emerging back there in the 60s, and I doubt Icom would knowingly have excluded themselves from the US market by producing a non-CTCSS-capable radio. As to the developing future of 2M - when we were given access to the 146-147MHz range a few years back, I had sort-of hoped that because there was no extant bandplan it might have triggered the adoption of (and/or experimentation with) some more-modern technologies [spread-spectrum, high-quality digital audio/TV] but this sadly does not seem to have happened. A shame - you can fit good-quality colour TV in a 500KHz bandwidth when using modern CODECs and relatively little processing-power.