[arm-allstar] Not sure how to describe this.....

[David McGough]

Adam,


Okay, you don't need a TKR-851 as your "link radio." A half-duplex rig
will work fine.  In either case, these rpt.conf node setting on the RPi4
should resolve this issue:

duplex=0
linktolink=yes

...So, you're effectively turning the linking TKR-851 into a half-duplex
radio. Note that is MUST be half-duplex. If it's full duplex, you'll
generate a perpetual feedback loop with the other repeater, which never
unkeys, just as you describe.

73, David KB4FXC



On Sat, 22 Feb 2020, Adam Feuer wrote:

> Hi Dave,
> 
> Thanks for asking.  Yes, two repeaters.......the TKR is acting as the 
> link for HamVOIP and it transmits on my remote repeater's input.  I used 
> a repeater (the TKR) at my house instead of a half duplex mobile 
> thinking that DVSwitch, from my phone,  would be able to PTT during the 
> remote repeater's hang time......like an HT would.
> 
> Adam N2ACF
> 
> 
> On 2/22/2020 20:29:58, David McGough wrote:
> > Adam,
> >
> > I think you're saying there are 2 repeaters involved: a TKR-851 connected
> > to an RPi4, then a second repeater at a remote site??
> >
> > How does the TKR-851 interact with the repeater at the remote site?
> >
> > 73, David KB4FXC
> >
> >
> >
> >
> >
> > On Sat, 22 Feb 2020, "Adam Feuer via ARM-allstar" wrote:
> >
> >> So here goes:
> > I have a node for the sole purpose of extending my repeater system's
> > coverage to DVSwitch mobile when I'm not in the RF coverage area of the
> > repeater. The main repeater system transmits PL all of the time and has
> > a lengthy hang time which won't be changed.
> >
> > The desire to have the phone act like an HT, the node (Pi4) is
> > interfaced to a Kenwood TKR-851 repeater via an RA-42 at my house
> > because there's no internet at the repeater site. As I type this, most
> > things work well, just not how I want them to.
> >
> > With the system un-keyed, If I initiate a PTT via DVSwitch mobile, the
> > Kenwood repeater (at my house) keys up into my main repeater and my TX
> > audio from the phone is perfect over the air. However, when I let go of
> > PTT from the phone, I don't receive the repeater's courtesy tone or
> > hangtime (or anyone talking back to me).  However, with the system
> > un-keyed, If a call is initiated over the air from a repeater system
> > user, it's heard on the Kenwood repeater at my house and I hear it on
> > DVSwitch mobile perfectly... BUT, I can't reply until the main system's
> > hang time ends.  This is not the case if DVSwitch mobile initiates the
> > call though, I can key up as many times as I'd like during the hang
> > time, but I just can't hear anyone.
> >
> > I tried changing all of the duplex settings in rpt.conf but if I don't
> > use setting "0", I get a continuous loop and neither repeater un-keys.Â
> > So, I'm not sure if what I'm trying to do is even feasible at this
> > point, but I did get close....
> >
> > If anyone has any suggestions at what I might try, it would be greatly
> > appreciated.
> >
> > Thanks!
> >
> > Adam N2ACF
> >
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>