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Television Standards Converters, Modulators etc Standards converters, modulators anything else for providing signals to vintage televisions.

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Old 25th Jul 2017, 2:01 pm   #1
shaunhw
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Default A cheap but very good UHF modulator

I recently bought one of these to use as well as my Maplin one which is more expensive, but has given good service and has fiddly dip switches to change the channel number unlike this new one.

Technomate RF Modulator

It has a digital display to show the current channel number, and up down buttons to change it. The channel number is remembered after switch off. It goes right from from channel 21 to channel 69. Has composite in, with L/R audio in, (mono sound only of course) and Scart input also.

It's only 17 pounds with free postage to Amazon Prime members, and works very well.

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

I'm not in any way connected with Technomate. I though thought it's a decent unit, for the cost, if anyone here was looking for something like this!

Best wishes,
Shaun.
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Old 19th Aug 2017, 10:13 pm   #2
Goldieoldie
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Default Re: A cheap but very good UHF modulator

Hi Shaun,
Can you change the sound from pal I ( uk ) to pal b/g ( Europe )
Cheers Pete
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Old 20th Aug 2017, 11:18 am   #3
emeritus
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Default Re: A cheap but very good UHF modulator

If you can find one, the Icecrypt T5000 STB that I bought in the UK has a SCART input and its modulator can be switched to provide UK PAL, B/G PAL and NTSC. The UK instruction manual does not mention these options, but they appear on the installation menu, and I confirmed that B/G PAL setting works using a multistandard TV.
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Old 20th Aug 2017, 1:54 pm   #4
wd40addict
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Default Re: A cheap but very good UHF modulator

The specs do say "PAL-I, PAL B/G & PAL-K Compatible", however Shaun would have to confirm whether there is actually some way of selecting this!
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Old 20th Aug 2017, 4:12 pm   #5
winston_1
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Default Re: A cheap but very good UHF modulator

Cheap and very good just don't come in the same package whatever you are buying. However I think the Maximum range of modulators are very good and reasonably priced. The MT47 covers VHF and UHF and can operate in systems B/G, I, D/K, L, M, and N. The MT57 is similar and can produce Zweiton Stereo on system B/G. Both are double side band and I seem to recall are around the 35 mark.

https://uk.eetgroup.com/i/4320-Maxim...specifications
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Old 20th Aug 2017, 4:50 pm   #6
G6Tanuki
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Default Re: A cheap but very good UHF modulator

There are plenty of these kinds of modulators around: but most current video sources [tablets, iPhones/iPads, Sky-boxes] are at least HDMI and more often DisplayPort so you need something which will downscale the original content.
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Old 21st Aug 2017, 8:52 am   #7
dragonser
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Default Re: A cheap but very good UHF modulator

HI,
one modulator I got actually covers the vhf channels as well. you can also change the fm sound spacing by holding down two of the buttons for 3 seconds ... the sound spacing is shown on the display.
it was called a dragonsat ( no connection to me ) .
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Regards Peter B
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Old 5th Sep 2017, 6:44 pm   #8
SiriusHardware
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Default Re: A cheap but very good UHF modulator

shaunhw, thanks for pre-testing these as I'm intending to use one as one half of my 'analogue teletext time source'

(The idea being to generate a 'local' analogue TV transmission which includes teletext content with the real time and date embedded, so that all of my legacy 'boxes' can find something to set / correct their internal time clocks from).

Most of them have been keeping very poor time (and don't update on the BST switchover) since the real analogue transmissions ceased.

The important thing about the one you have described is that it remembers the channel it is set to during switch off. I might choose to run the project on a simple timer so that it only turns on for a few hours from (say) 0:00 to 03:30 on Sundays, allowing the boxes to correct their time clocks once a week (and to catch the BST time change twice a year as well). If so, I don't want the modulator coming back up on channel 21 every time it is powered up.
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