RF modulator freezing/losing signal

jonnystuartUK

Active Member
I have a technomate rf modulator that keeps freezing / losing the signal.

The set up is as follows: Sky Q -> splitter / scaler -> output 1 takes 4K to TV via HDBaseT extender -> output 2 (scaled to 1080) -> rf modulator.

The loss of signal only happens overnight so guessing it’s when there is no signal or something as the sky box turns off.

My morning routine turns the 4K tv on with Sky box and that works fine but if I try a TV via modulator it doesn’t work however main aerial signal is ok.

The only fix is to reboot the modulator. I’ve tried rebooting the scaler first but that doesn’t do anything.

Any advice?
 

Joe Fernand

Distinguished Member
AVForums Sponsor
Which Splitter/processor do you have?

It may have an ‘always on’ option to keep the SKY feed always active (if that is the issue) - if not you could add a device such as the HDFury Dr HDMI 4K between SKY Q and the splitter.


Joe
 

jonnystuartUK

Active Member
@Joe Fernand This is the one I have.

Amazon product

I think I’d rather try and solve the issue than put something in place to cover it up. Although I could put my matrix in between and try and run a harmony activity which switches to CCTV at night (which is a constant signal).

Or just keep sky on all the time
 
Last edited:

jonnystuartUK

Active Member
Set up an activity last night to switch the input of the matrix before the Sky box goes into eco mode (2.30am) then switch it back with my morning routine... worked a treat!
 

jonnystuartUK

Active Member
Just bringing this back up as I thought i'd found a resolution but appears not.

So I added to my bed time routine (which turns off the Harmony TV activity) to switch the matrix to input 2 (CCTV). If I check a TV connected to the RF modulator immediately after running the routine it shows the CCTV as I expect but something happens overnight as when I run the morning routine which switches the TV on and changes the matrix back to input 1 (Sky), the TV connected to the RF modulator does not get a signal however the TV connected to the HDBaseT extender does work.

I have to restart the RF modulator for it to work again.

This is my set up.
Screenshot 2020-10-06 at 19.23.22.png
 

Seb Briggs

Distinguished Member
Is that every TV that doesnt show a picture or just one ?

I suspect its something to do with the matrix and switching resolutions/signal.

I would recommend a 2nd (and possibly third) modulator rather than using the matrix
 

Seb Briggs

Distinguished Member
One other question are the Sky box, the ATV and NVR set to a fixed resolution rather than auto ?
IS CEC turned off ?
 

jonnystuartUK

Active Member
It's every TV connected to the RF Modulator, the 4K TV connected to the extender is fine (although not if I switch to the modulator channel).

Since restarting the RF modulator it's been on CCTV all day and been fine, so like I say something is happening.

Sky box, the ATV and NVR and set to fixed resolutions
 

jonnystuartUK

Active Member
when it's 'frozen' nothing, until I reboot it
 

jonnystuartUK

Active Member
No, so when it's working fine I can switch the source perfectly fine. Just something overnight freezes it. I wonder if on bed time routine I change it to ATV and see if it freezes
 

jonnystuartUK

Active Member
Switching to ATV has resolved the issue, even if the ATV is on standby. Must be something to do with the hikvision CCTV.
 

tf19

Standard Member
Hi

I have a similar issue and wondered if anyone can help?

I have Sky Q > HDMI Splitter > Output #1: Main TV, Output #2: Technomate Modulator > From Modulator COAX > Distribution AMP > Second TV.

I managed to get it to work so I know it can, but I regularly get on second TV “Check signal from TM-RF HD”.

Any ideas why?
 

jonnystuartUK

Active Member
If it has a loss of signal for a period of time ie the sky box turns off then that results on the modulator needed a reboot.

I set it up with a smart plug.
 

tf19

Standard Member
So every time I put sky q box in standby (like at bed time) then turn it on again in the morning, I need to reboot the modulator to get it to work in the second tv? That sounds like a pain, any way around this?
 

jonnystuartUK

Active Member
Yes that’s the issue I came across. Like I said I use a smart plug and I have an evening routine that turns it off and a morning routine that turns it on.
 

jonnystuartUK

Active Member
Or just stop Sky going into standby
 

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