You can do DPL with TX/RX that have DPL on board using simple usb but I'd prefer DSP. IMHO it's cleaner and I was never able to eliminate squelch bursts using simple usb. DPL coupled with DSP would probably produce a nice clean drop when a user or the repeater unkeys. Half of my question/suggestion was also regarding RTCM based systems. With the RTCM you need to use the local CTCSS/DCS decoder but the server produces the TX CTCSS and sends it up the network. In a simulcast setup I'm assuming you would have to have the server generate DCS if there were to be any overlap areas at all. On Mon, Jul 10, 2017 at 8:28 AM, < app_rpt-users-request@lists.allstarlink.org> wrote:

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Today's Topics:

1. Re: App_rpt-users Digest, Vol 101, Issue 10 (George Csahanin) 2. Re: App_rpt-users Digest, Vol 101, Issue 10 (George Csahanin)

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Message: 1 Date: Mon, 10 Jul 2017 09:26:06 -0500 From: George Csahanin <george@dyb.com> To: app_rpt-users@lists.allstarlink.org Subject: Re: [App_rpt-users] App_rpt-users Digest, Vol 101, Issue 10 Message-ID: <f86c3139-156c-d748-36bc-9e27f7956e36@dyb.com> Content-Type: text/plain; charset="utf-8"; Format="flowed"

Just recently thinking of this. It actually would be pretty handy. Though most just use the pl/dpl encode/decode in the radio and don't use the DSP encode and decode in Allstar it might be handy for a few> I have a small node consisting of a Motorola P10 talkie where I use DSP PL. I use PL there. But a real need arises on 900. I have a pair of TKR-901's that will be modded for the ham band using someone else's code to allow programming of the synthesizers. But DPL seems to be a better choice on 900 and the TKR-901 has zero PL circuitry, its basically a receiver and transmitter, carrier squelch. A perfect candidate for USBRADIO. But really needs DPL.

But I defer to the code writers. This may not be trivial to do and may be more of a distraction.

But a neat idea.

GeorgeC

W2DB

2360

On 7/10/2017 8:50 AM, Jeff Carrier wrote:

...

How many on the list would desire DPL support within app_rpt? Is it worth looking at? I'm pretty sure this has come up in the past. For the record, I ask this knowing I'm unable to contribute to the coding of this since I lack that skill set.

I personally prefer DPL but I think there are still many older radios lurking that don't have capabilities beyond CTCSS.

I also know we've had pretty spirited discussions regarding simulcast on the list. I'm simulcasting from 4 sites on UHF with unmodified RTCM's and do have some issues in the overlap areas. I know keeping CTCSS in phase in an analog simulcast system is a challenge so how ugly would DPL be in a simulcast environment?

Thoughts?

de K0JSC

On Sun, Jul 9, 2017 at 2:09 PM, <app_rpt-users-request@lists.allstarlink.org <mailto:app_rpt-users-request@lists.allstarlink.org>> wrote:

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-- George Csahanin 10100 Carson Ranch Rd. Crowley, TX 76036 682-708-5716 home 401-338-0568 cel http://dyb.com PLEASE NOTE: Effective January 1, 2018 george@dyb.com will no longer function USE george@w2db.com