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Old 18th Jul 2019, 6:37 pm   #184
Superscope
Octode
 
Join Date: May 2017
Location: St Austell, Cornwall, UK.
Posts: 1,018
Default Re: Hedghog standards converter

I have an interesting problem with my Hedghog and wondered if anybody on the Forum
might have some ideas?

Can't seem to get a clean Picture at all.
Looks like the Video is extremely noisy and the TV's I've tried look like they
are struggling to Sync properly, some can't display anything sensible at all.

Stephen (Freya) has very kindly retested the HH and found no faults at all!

All my VHF TV's are mid 70's Portables and all are Uk Models and none of them
will display a clean Picture and most won't display anything viewable!

TV's tested from my collection are:
JVC 3050Uk Only Noise but clearly a signal of sorts is present
JVC CX-500GB Very Poor, just able to make out Test Card.
JVC CX-60GB Displays the best Picture, but very noisy.
JVC P100-UK Only Noise but clearly a signal of sorts is present
Crown 5TV-65R Just able to make out Test Card
Crown 5TV-525R Only Noise but clearly a signal of sorts is present

Stephen asked if the TV's were 625 Line?

I wasn't aware any VHF transmissions in the Uk were 625 Line, can anybody tell
me if the Uk used VHF 625 Line and if they did, when did this happen?

I know using VHF 625 Line was considered before the UHF 625 Line system was
established, but can't see any mention that is was ever used, having opted instead
for duplicate BBC1 and ITV on VHF and UHF.

Ian
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