Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
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G1BVI
Posts: 300
Joined: Wed Aug 02, 2017 7:32 am

Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Post by G1BVI » Fri Jan 21, 2022 5:21 pm

I have the latest (202201110) update and after selecting TX there is a delay of 7 seconds before the lime outputs any RF.

I read in previous threads that this had been increased to 12 seconds to get round the spike produced by the lime mini just prior to transmitting.

I have forced updates but it remains at 7 seconds.

Assuming it should be 12 secs

Is there a line of code I can change to amend this?
Another question
In the lime Menu what is the purpose of the DVB FW? I have to use FW 1.30 in order to output QPSK.

Finally
M2 Info
I noticed that if on a wired network the IP address is indicated but if on Wifi it is blank?

73

Nick
G1BVI

G1BVI
Posts: 300
Joined: Wed Aug 02, 2017 7:32 am

Re: Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Post by G1BVI » Fri Jan 21, 2022 7:41 pm

I have found where the delay is set abd delay_time is \set to 12??

73

Nick

G1BVI
Posts: 300
Joined: Wed Aug 02, 2017 7:32 am

Re: Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Post by G1BVI » Fri Jan 21, 2022 7:48 pm

the delay is within lime_ptt.sh
changing it to 20 makes no difference to the delay.
it is still 7 secs

73

Nick

g8gtz
Posts: 1777
Joined: Wed Apr 07, 2010 6:26 pm

Re: Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Post by g8gtz » Fri Jan 21, 2022 7:56 pm

Sorry Nick but the Portsdown guru is away on much deserved holiday for the next 10 days :-)

FWIW - my system has always been at around 7 seconds and it is more than enough for the duration of the Lime calibration process so I wouldn't worry about it.

Noel - G8GTZ

G1BVI
Posts: 300
Joined: Wed Aug 02, 2017 7:32 am

Re: Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Post by G1BVI » Fri Jan 21, 2022 8:14 pm

Thanks Noel
Its no panic
It definitely should be longer see below....

I have just issued a new release of the software for the Portsdown 4 (Raspberry Pi 4 and 7 inch screen only). The changes include:
Prevent reboot hang if Pluto not connected
Add Pluto Contest and Desktop modes
Add Mic Gain setting on Menu 3
Correct Receiver parameter display behaviour
Add Pluto Config Menu
Increase Lime Transmit delay to 12 seconds
Add Pluto support for newer C920 and very old C170 Webcams
Add more H264 16:9 modes

he most notable changes are the increase in the Lime PTT delay to 12 seconds (as 7 seconds was not always long enough to avoid the calibration spike) and the addition of support for Pluto transmissions from the newer C920 Webcams (the ones without an internal H264 encoder).

Thanks to Colin G4KLB, Roland F8CHK, Wolfgang DL1BJV and Hubertus DC1OP for their help in identifying the bugs.

Please report any new bugs here.

Dave, G8GKQ
This was release

and was Aug 23rd so I would have thought if it did not work someone would have put their hand up:-)

Il put it all back as before and wait

73

Nick

G1BVI
Posts: 300
Joined: Wed Aug 02, 2017 7:32 am

Re: Portsdown 4 PTT delay for Lime Mini 7 or 12 secs + lime Menu

Post by G1BVI » Fri Jan 21, 2022 8:16 pm

202008230
oops

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