¿ªÔÆÌåÓý

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Slow PTT Release

 

Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.
 

If you do a little research you find the Baofeng is not a good radio for packet, you can probably find a older/used radio with the packet connector which will serve you much better.


On Sun, Mar 28, 2021 at 1:09 PM Matthew Corcoran <m5mpc@...> wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.







--
John D. Hays
Kingston, WA
K7VE / WRJT-215

?
 

You're running into one of numerous, and somewhat unpredictable, timing issues with the Baofeng radio. They are not suitable for packet radio, find a used "brand name" radio and use that instead.

I think you misunderstand the function of TXTAIL, which is to hold the tx up for some mS to ensure that last data packet isn't truncated if the tx drops too quickly. The last bit of data in the packet is sent during the TXTAIL period. In days of old it was almost essential for 0k3 packet on HF, and I had one commercial VHF 1k2 rig that needed a small amount of TXTAIL.

Consider that when you add extra tx time to compensate for a poor radio you are impacting performance of the entire network.

Ray vk2tv

On 29/3/21 6:53 am, Matthew Corcoran wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.
 

¿ªÔÆÌåÓý


Please review the archives about all kinds of issues with using Baofeng radios with packet radio.? There was a very recent post where one person just swapped out his Baofeng radio and all of his issues just disappeared ( /g/direwolf/topic/pat_winlink_2m_packet_1200/81548950?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,81548950 ).? This has happened to MANY people before as well.

Anyway.. to your specific issue.. if this isn't a poor quality radio issue, do you have the PTT-ID feature enabled??

??

--David
KI6ZHD


On 03/28/2021 12:53 PM, Matthew Corcoran wrote:

Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).  I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.  I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.

 

Hi,

I agree with what your both saying, but I'm setting up a node that will probably never get used (so I can learn).? I'm in the UK so there is not the enthusiasm for packet that you are accustomed to across the pond / pacific.? I realise that I am trying to polish a turd.? There is no network here to disrupt (over RF anyway).

If I can find a UK / ebay retailer selling a cheap 2m rig with PTT / CAT control at a reasonable price and I'll buy it.? For that,? everything over here is a full shack-in-box costing ?????.

Mat.

P.S:?KI6ZHD....checking now (kids grrrr.....)

On Sun, 28 Mar 2021, at 9:33 PM, John D Hays - K7VE wrote:
If you do a little research you find the Baofeng is not a good radio for packet, you can probably find a older/used radio with the packet connector which will serve you much better.


On Sun, Mar 28, 2021 at 1:09 PM Matthew Corcoran <m5mpc@...> wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.







--
John D. Hays
Kingston, WA
K7VE / WRJT-215

?
 

Hi,

I don't have the?PTT-ID enabled but cheers for the heads up.? It's quite ironic that my main rig is a FT911-A (that's doing just fine) , but I can't dedicate that for my packet node.

Cheers,

Mat.

On Sun, 28 Mar 2021, at 9:58 PM, David Ranch wrote:

Please review the archives about all kinds of issues with using Baofeng radios with packet radio.? There was a very recent post where one person just swapped out his Baofeng radio and all of his issues just disappeared ( /g/direwolf/topic/pat_winlink_2m_packet_1200/81548950?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,81548950 ).? This has happened to MANY people before as well.

Anyway.. to your specific issue.. if this isn't a poor quality radio issue, do you have the PTT-ID feature enabled??

??

--David
KI6ZHD



On 03/28/2021 12:53 PM, Matthew Corcoran wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).  I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.  I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.


 

On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
Have you made sure to disable "Squelch Tail Elimination" on the radio ?



It may be enabled by default.

73,
Dana? K6JQ




I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.
 

Hi,

Cheers Dana, that was it!!! Disabling STE cured it :) I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E. But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:
On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
Have you made sure to disable "Squelch Tail Elimination" on the radio ?



It may be enabled by default.

73,
Dana? K6JQ




I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.
 

¿ªÔÆÌåÓý


Hello Matt,

Curious, was this Baofeng feature ON by default or did you turn it on?

--David
KI6ZHD


On 03/29/2021 08:09 AM, Matthew Corcoran wrote:

Hi,

Cheers Dana, that was it!!!  Disabling STE cured it :)  I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.  But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:

On 3/28/2021 12:53 PM, Matthew Corcoran wrote:

Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).  I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

Have you made sure to disable "Squelch Tail Elimination" on the radio ?



It may be enabled by default.

73,
Dana? K6JQ




I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.  I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.

 

¿ªÔÆÌåÓý

On 3/29/2021 9:48 AM, David Ranch wrote:

Hello Matt,

Curious, was this Baofeng feature ON by default or did you turn it on?


I believe this is a feature of the RDA1846 and not unique to Baofeng; it's
up to the firmware developer of each radio to set the default state for this.
If I recall correctly, I discovered this in a Bridgecom HT (either BCH-220 or
BCH-270). My guess is the radios use a standard firmware library (perhaps
from RDA) and this is where the default comes from.

It was enabled by default on the radio I first discovered it on, but I don't recall
exactly which radio that was.

73,
Dana? K6JQ


--David
KI6ZHD


On 03/29/2021 08:09 AM, Matthew Corcoran wrote:
Hi,

Cheers Dana, that was it!!!  Disabling STE cured it :)  I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.  But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:

On 3/28/2021 12:53 PM, Matthew Corcoran wrote:

Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).  I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

Have you made sure to disable "Squelch Tail Elimination" on the radio ?



It may be enabled by default.

73,
Dana? K6JQ




I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.  I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.


 

Hi,

It was on by default.? I didn't know it was there to switch on hehehe

Mat.

On Mon, 29 Mar 2021, at 5:48 PM, David Ranch wrote:

Hello Matt,

Curious, was this Baofeng feature ON by default or did you turn it on?

--David
KI6ZHD


On 03/29/2021 08:09 AM, Matthew Corcoran wrote:
Hi,

Cheers Dana, that was it!!!  Disabling STE cured it :)  I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.  But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:

On 3/28/2021 12:53 PM, Matthew Corcoran wrote:

Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).  I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

Have you made sure to disable "Squelch Tail Elimination" on the radio ?



It may be enabled by default.

73,
Dana? K6JQ




I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.  I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.

 

Reduce power, the RF is get induced to the PTT keeping TX too long.

73 de Yono - YD0NXX

On Mar 29, 2021, at 3:09 AM, Matthew Corcoran <m5mpc@...> wrote:

?Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.
 

On 3/29/2021 8:30 AM, Suryono Adisoemarta via groups.io wrote:
Reduce power, the RF is get induced to the PTT keeping TX too long.
That's not the case here - radios based on the RDA1846(S) chips have a
feature that uses a CTCSS tone to signal end of transmission, so compatible
radios can mute the receiver and avoid the squelch tail. It's similar to reverse-
burst CTCSS except, instead of changing the phase of? the CTCSS burst, it
generates a specific CTCSS burst and hold the transmitter long-enough
for the receiving end to decode and mute (~250mS).

The original poster already confirmed this feature was enabled by default,
disabled it and eliminated the long PTT tail.

73,
Dana? K6JQ


73 de Yono - YD0NXX
 

They may be low quality.... But you just solved your problem, and effectively showed that all the "Baofeng is garbage and doesn't work for packet" was far more unfounded bias against what is seen as an inferior product, and had very little to do with if it's capable of being used for packet or not... There are a boatload of people using Baofeng UV5R radios for packet with Direwolf quite successfully.



On Mon, Mar 29, 2021, 11:10 AM Matthew Corcoran <m5mpc@...> wrote:
Hi,

Cheers Dana, that was it!!!? Disabling STE cured it :)? I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.? But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:
> On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
> > Hi,
> >
> > I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
>
> Have you made sure to disable "Squelch Tail Elimination" on the radio ?
>
>
>
> It may be enabled by default.
>
> 73,
> Dana? K6JQ
>
>
>
> >
> > I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.
> >
> > Cheers,
> >
> > Mat.
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
 

Hi,

If I can get them working A-OK, I'll stick with them.? Once STE was disabled, I ran several tests and I'm getting no missed packets.? Not sure how it will fare when it's plugged into an X-30,? but initial tests are OK.

Seeing as it was asked if STE was on by default - I should clarify that it's a GT-3TP Mk. 3.

Cheers,

Mat.



On Mon, 29 Mar 2021, at 8:20 PM, John Tetreault? (WA1OKB) wrote:
They may be low quality.... But you just solved your problem, and effectively showed that all the "Baofeng is garbage and doesn't work for packet" was far more unfounded bias against what is seen as an inferior product, and had very little to do with if it's capable of being used for packet or not... There are a boatload of people using Baofeng UV5R radios for packet with Direwolf quite successfully.



On Mon, Mar 29, 2021, 11:10 AM Matthew Corcoran <m5mpc@...> wrote:
Hi,

Cheers Dana, that was it!!!? Disabling STE cured it :)? I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.? But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:
> On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
> > Hi,
> >
> > I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
>
> Have you made sure to disable "Squelch Tail Elimination" on the radio ?
>
>
>
> It may be enabled by default.
>
> 73,
> Dana? K6JQ
>
>
>
> >
> > I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.
> >
> > Cheers,
> >
> > Mat.
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
 

¿ªÔÆÌåÓý


Hello John,

If you research the archives here and many other forums, you'll find a LOT of other users having lots of different issues including:

?? - inconsistent input and output audio levels during packet operation
?? - different working results with the same operator using multiple "identical" Baofeng radios
?? - very weak receiver frontends for dealing with nearby strong signals
?? - these radios are very susceptible to RFI issues
?? - Not a Baofeng specific issue but doing RX/TX packet with only 5w can be difficult for reliable operation


It's up to you and like you said, they can be made to work.? It's just up to how much hair you'll have left afterwards is up to you.? :-)

--David
KI6ZHD




On 03/29/2021 12:20 PM, John Tetreault (WA1OKB) wrote:

They may be low quality.... But you just solved your problem, and effectively showed that all the "Baofeng is garbage and doesn't work for packet" was far more unfounded bias against what is seen as an inferior product, and had very little to do with if it's capable of being used for packet or not... There are a boatload of people using Baofeng UV5R radios for packet with Direwolf quite successfully.



On Mon, Mar 29, 2021, 11:10 AM Matthew Corcoran <m5mpc@...> wrote:
Hi,

Cheers Dana, that was it!!!? Disabling STE cured it :)? I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.? But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:
> On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
> > Hi,
> >
> > I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
>
> Have you made sure to disable "Squelch Tail Elimination" on the radio ?
>
>
>
> It may be enabled by default.
>
> 73,
> Dana? K6JQ
>
>
>
> >
> > I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.
> >
> > Cheers,
> >
> > Mat.
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
 

Hi,

Just for information - There is another setting,?36 - RP-STE - Default is 5.? This has improved TX release times further.

Cheers,

Mat.

On Mon, 29 Mar 2021, at 9:08 PM, David Ranch wrote:

Hello John,

If you research the archives here and many other forums, you'll find a LOT of other users having lots of different issues including:

?? - inconsistent input and output audio levels during packet operation
?? - different working results with the same operator using multiple "identical" Baofeng radios
?? - very weak receiver frontends for dealing with nearby strong signals
?? - these radios are very susceptible to RFI issues
?? - Not a Baofeng specific issue but doing RX/TX packet with only 5w can be difficult for reliable operation


It's up to you and like you said, they can be made to work.? It's just up to how much hair you'll have left afterwards is up to you.? :-)

--David
KI6ZHD




On 03/29/2021 12:20 PM, John Tetreault (WA1OKB) wrote:
They may be low quality.... But you just solved your problem, and effectively showed that all the "Baofeng is garbage and doesn't work for packet" was far more unfounded bias against what is seen as an inferior product, and had very little to do with if it's capable of being used for packet or not... There are a boatload of people using Baofeng UV5R radios for packet with Direwolf quite successfully.



On Mon, Mar 29, 2021, 11:10 AM Matthew Corcoran <m5mpc@...> wrote:
Hi,

Cheers Dana, that was it!!!? Disabling STE cured it :)? I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.? But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:
> On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
> > Hi,
> >
> > I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
>
> Have you made sure to disable "Squelch Tail Elimination" on the radio ?
>
>
>
> It may be enabled by default.
>
> 73,
> Dana? K6JQ
>
>
>
> >
> > I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.
> >
> > Cheers,
> >
> > Mat.
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
 

Just to clarify - switching it off helped.

On Wed, 31 Mar 2021, at 9:13 PM, Matthew Corcoran wrote:
Hi,

Just for information - There is another setting,?36 - RP-STE - Default is 5.? This has improved TX release times further.

Cheers,

Mat.

On Mon, 29 Mar 2021, at 9:08 PM, David Ranch wrote:

Hello John,

If you research the archives here and many other forums, you'll find a LOT of other users having lots of different issues including:

?? - inconsistent input and output audio levels during packet operation
?? - different working results with the same operator using multiple "identical" Baofeng radios
?? - very weak receiver frontends for dealing with nearby strong signals
?? - these radios are very susceptible to RFI issues
?? - Not a Baofeng specific issue but doing RX/TX packet with only 5w can be difficult for reliable operation


It's up to you and like you said, they can be made to work.? It's just up to how much hair you'll have left afterwards is up to you.? :-)

--David
KI6ZHD



On 03/29/2021 12:20 PM, John Tetreault (WA1OKB) wrote:
They may be low quality.... But you just solved your problem, and effectively showed that all the "Baofeng is garbage and doesn't work for packet" was far more unfounded bias against what is seen as an inferior product, and had very little to do with if it's capable of being used for packet or not... There are a boatload of people using Baofeng UV5R radios for packet with Direwolf quite successfully.



On Mon, Mar 29, 2021, 11:10 AM Matthew Corcoran <m5mpc@...> wrote:
Hi,

Cheers Dana, that was it!!!? Disabling STE cured it :)? I Feel a bit of a fool for not spotting that in the manual :)

I will take the advice about Baofeng being rubbish (they are, I get quite bad pager breakthrough etc) - the only one I can find that seems to fit the bill without going for a shack-in-a-box is a Yeasu FT-25E.? But at the moment it's just an experiment with near dummy loads for antennas - I'll see if it can get it all working first.

Cheers again,

Mat.

On Sun, 28 Mar 2021, at 11:51 PM, Dana Myers wrote:
> On 3/28/2021 12:53 PM, Matthew Corcoran wrote:
> > Hi,
> >
> > I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ).? I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.
>
> Have you made sure to disable "Squelch Tail Elimination" on the radio ?
>
>
>
> It may be enabled by default.
>
> 73,
> Dana? K6JQ
>
>
>
> >
> > I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT.? I've looked at direwolf -d o and everything seems ok there.
> >
> > Cheers,
> >
> > Mat.
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
 

I am curious if this applies to the SA818 chip radios as well.

Thanks,

-Michael

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Ray Wells
Sent: Sunday, March 28, 2021 3:49 PM
To: [email protected]
Subject: Re: [direwolf] Slow PTT Release

You're running into one of numerous, and somewhat unpredictable, timing issues with the Baofeng radio. They are not suitable for packet radio, find a used "brand name" radio and use that instead.

I think you misunderstand the function of TXTAIL, which is to hold the tx up for some mS to ensure that last data packet isn't truncated if the tx drops too quickly. The last bit of data in the packet is sent during the TXTAIL period. In days of old it was almost essential for 0k3 packet on HF, and I had one commercial VHF 1k2 rig that needed a small amount of TXTAIL.

Consider that when you add extra tx time to compensate for a poor radio you are impacting performance of the entire network.

Ray vk2tv

On 29/3/21 6:53 am, Matthew Corcoran wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.
 

On 4/1/2021 7:15 AM, Michael Champion Sr wrote:
I am curious if this applies to the SA818 chip radios as well.
Those are also based on the RDA1846(S), so it could. I've experimented with the
similar DRA818V radios and did not see the STE enabled, but I did experience
terrible TX delay; the radio keys up but takes ~700mS for audio to 'fade' in.

73,
Dana? K6JQ


Thanks,

-Michael


-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Ray Wells
Sent: Sunday, March 28, 2021 3:49 PM
To: [email protected]
Subject: Re: [direwolf] Slow PTT Release

You're running into one of numerous, and somewhat unpredictable, timing issues with the Baofeng radio. They are not suitable for packet radio, find a used "brand name" radio and use that instead.

I think you misunderstand the function of TXTAIL, which is to hold the tx up for some mS to ensure that last data packet isn't truncated if the tx drops too quickly. The last bit of data in the packet is sent during the TXTAIL period. In days of old it was almost essential for 0k3 packet on HF, and I had one commercial VHF 1k2 rig that needed a small amount of TXTAIL.

Consider that when you add extra tx time to compensate for a poor radio you are impacting performance of the entire network.

Ray vk2tv

On 29/3/21 6:53 am, Matthew Corcoran wrote:
Hi,

I'm a packet newbie and I've got direwolf working (have to say, the manual is very good :) ). I'm using USB serial PTT control with a Baofeng - PTT is quick at TX, no problems there, but a bit slow releasing so it transmits over some replies.

I've looked at TXTAIL, but it seems that also delays the PTT - Is there a way to continue the carrier for a set time without delaying the PTT. I've looked at direwolf -d o and everything seems ok there.

Cheers,

Mat.

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