UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - My (mostly Philips) Analogue telly broadcast setup

Synchrodyne · 16th Nov 2022, 3:08 am

Most impressive!

I was thinking that a professional receiver would better complement the “transmission equipment”. On the other hand, if the objective is to see what representative domestic receiving equipment makes of a broadcast-quality transmission, then I guess that the Arcam Delta 150 is a good choice.

As far as I know the Delta used a fairly standard domestic TV SAWF and QSS IC set, with standard quasi-synchronous vision demodulation (no Nyquist slope cancellation, etc.), and also with quasi-synchronous type QSS. From what I have read (although not necessarily with in-depth understanding) on these aspects, PLL demodulation, and even then with phase correction feedback, is needed to match fully split sound in SNR terms.

Cheers,

16th Nov 2022, 3:08 am	#3
Synchrodyne Nonode Join Date: Jan 2009 Location: Papamoa Beach, Bay of Plenty, New Zealand Posts: 2,944	Re: My (mostly Philips) Analogue telly broadcast setup Most impressive! I was thinking that a professional receiver would better complement the “transmission equipment”. On the other hand, if the objective is to see what representative domestic receiving equipment makes of a broadcast-quality transmission, then I guess that the Arcam Delta 150 is a good choice. As far as I know the Delta used a fairly standard domestic TV SAWF and QSS IC set, with standard quasi-synchronous vision demodulation (no Nyquist slope cancellation, etc.), and also with quasi-synchronous type QSS. From what I have read (although not necessarily with in-depth understanding) on these aspects, PLL demodulation, and even then with phase correction feedback, is needed to match fully split sound in SNR terms. Cheers,