A and B audio output from USB fob on a RPi running DIAL
Hi All: I am using the DIAL Image on a PRi 2; I would like to use the "A" and "B" audio outputs from my fob (A for voice and B for PL), so that I can inject them into separate points on my exciter. I was able to get 2 'discrete' audio outputs when running ACID on a PC. This doesn't seem to be working with the Pi / DIAL. Is anyone running this configuration on a Pi? Thx, Ramesh. # 27919 and a truck load of others! Sent from my iPhone
I am without a problem. What result are you getting? On 07/10/2016 10:04 AM, Ramesh Dhami wrote:
Hi All:
I am using the DIAL Image on a PRi 2; I would like to use the "A" and "B" audio outputs from my fob (A for voice and B for PL), so that I can inject them into separate points on my exciter.
I was able to get 2 'discrete' audio outputs when running ACID on a PC. This doesn't seem to be working with the Pi / DIAL. Is anyone running this configuration on a Pi?
Thx,
Ramesh.
# 27919 and a truck load of others!
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Yes - I have several of these running this way. What are you using for your "fob". On 7/10/2016 10:04 AM, Ramesh Dhami wrote:
Hi All:
I am using the DIAL Image on a PRi 2; I would like to use the "A" and "B" audio outputs from my fob (A for voice and B for PL), so that I can inject them into separate points on my exciter.
I was able to get 2 'discrete' audio outputs when running ACID on a PC. This doesn't seem to be working with the Pi / DIAL. Is anyone running this configuration on a Pi?
Hi Kevin and Steve: First, the Pi is running 3 full duplex nodes using DSP! I am seeing some audio issues too, which may be a sign of pushing the limits of the Pi. Secondly, I am using home brew fobs (StarTech CM108 conversions). I have two 220 repeaters in my shack, I will test on the second repeater, using a different fob, which may help to pin point the issue. I must confess that I have 3 different rev levels for my fob conversions, two of my fobs do not have a label on them, so maybe I am using one of my early fobs, where I just had one audio output! I will test and let you know! Cheers, Ramesh. Sent from my iPhone
On Jul 10, 2016, at 10:30 AM, Kevin Custer <kuggie@kuggie.com> wrote:
Yes - I have several of these running this way.
What are you using for your "fob".
On 7/10/2016 10:04 AM, Ramesh Dhami wrote: Hi All:
I am using the DIAL Image on a PRi 2; I would like to use the "A" and "B" audio outputs from my fob (A for voice and B for PL), so that I can inject them into separate points on my exciter.
I was able to get 2 'discrete' audio outputs when running ACID on a PC. This doesn't seem to be working with the Pi / DIAL. Is anyone running this configuration on a Pi?
Running 3 nodes on the DIAL release is likely not going to work. You may want to try Doug and David's release which uses a different channel driver. I've never heard anyone having luck running more then 2 nodes on the Raspberry Pi release in full DSP, but I have heard of success with the other. Kevin On 7/10/2016 10:57 AM, Ramesh Dhami wrote:
Hi Kevin and Steve:
First, the Pi is running 3 full duplex nodes using DSP!
I am seeing some audio issues too, which may be a sign of pushing the limits of the Pi.
Secondly, I am using home brew fobs (StarTech CM108 conversions).
I have two 220 repeaters in my shack, I will test on the second repeater, using a different fob, which may help to pin point the issue.
I must confess that I have 3 different rev levels for my fob conversions, two of my fobs do not have a label on them, so maybe I am using one of my early fobs, where I just had one audio output!
I will test and let you know!
Cheers,
Ramesh.
Sent from my iPhone
On Jul 10, 2016, at 10:30 AM, Kevin Custer <kuggie@kuggie.com> wrote:
Yes - I have several of these running this way.
What are you using for your "fob".
On 7/10/2016 10:04 AM, Ramesh Dhami wrote: Hi All:
I am using the DIAL Image on a PRi 2; I would like to use the "A" and "B" audio outputs from my fob (A for voice and B for PL), so that I can inject them into separate points on my exciter.
I was able to get 2 'discrete' audio outputs when running ACID on a PC. This doesn't seem to be working with the Pi / DIAL. Is anyone running this configuration on a Pi?
I'm adding to my earlier post which was not very clear. On 7/10/2016 4:08 PM, Kevin Custer wrote:
I've never heard anyone having luck running more than 2 nodes on the Raspberry Pi release *of DIAL* in full DSP.....
On 7/10/2016 4:08 PM, Kevin Custer wrote:
Running 3 nodes on the DIAL release is likely not going to work. You may want to try Doug and David's release which uses a different channel driver. I've never heard anyone having luck running more then 2 nodes on the Raspberry Pi release in full DSP, but I have heard of success with the other.
Hi Kevin and all: Wow - lots of discussion going on today, so I will jump in help divert the discussion! So... for one of my 220 repeaters, I did confirm that the USB fob I was using was one of my earlier versions, which only had one audio output - hence the reason why I was not able to get the 'split' PL working - doh! - my bad ;). My 2nd 220 repeater (yeh, I have 2 x 220 machines that I am lucky enough to be working on at the same time!) - this is a pair of Bridgecom BCM220 mobiles (identical to the radios used in the Bridgecom 220 repeater package) - this repeater is connected to a fob where I did bring out both audio channels. So hence, I am able to split the PL and inject that into the 'data' input of the BCM220 radio. This works well - so all good there! What I am observing is that I have some high frequency noise on the audio out of the Bridgecom TX radio; it's subtle, but it is there. One thought that I had is whether this was coming off discriminator of the RX radio. I turned the RX radio off and the noise is still there. Now coincidentally, I saw a message scroll by the display on the TX radio "PLL UNLOCKED" - ta da... is this synthesizer whine that I am hearing??? - I am going to test with a local mic tonight and see if the noise is still there (independent of the USB fob / app_rpt, etc...). Running 3 full-duplex nodes on the Pi - I've been doing that for sometime; the difference now is the radio's - the RPi 2 and fobs are the same. I didn't have this issue before. More to follow... but for now, I wanted to provide an update and get us back to a technical discussion! ;). Cheers, Ramesh.
Just curious what pl tone are you using?? I have heard some stories where pl tones where just a little too hot creating some thing similar to what you describe i personally have not yet seen this but It might be something to consider.. Loren Tedford (KC9ZHV) Phone: Fax: Email: lorentedford@gmail.com Email: KC9ZHV@KC9ZHV.com http://www.lorentedford.com http://www.kc9zhv.com http://forum.kc9zhv.com http://hub.kc9zhv.com http://Ltcraft.net <http://ltcraft.net/> On Mon, Jul 11, 2016 at 3:08 PM, Ramesh Dhami (VA3UV) <Ramesh@va3uv.com> wrote:
On 7/10/2016 4:08 PM, Kevin Custer wrote:
Running 3 nodes on the DIAL release is likely not going to work. You may want to try Doug and David's release which uses a different channel driver. I've never heard anyone having luck running more then 2 nodes on the Raspberry Pi release in full DSP, but I have heard of success with the other.
Hi Kevin and all:
Wow - lots of discussion going on today, so I will jump in help divert the discussion!
So... for one of my 220 repeaters, I did confirm that the USB fob I was using was one of my earlier versions, which only had one audio output - hence the reason why I was not able to get the 'split' PL working - doh! - my bad ;).
My 2nd 220 repeater (yeh, I have 2 x 220 machines that I am lucky enough to be working on at the same time!) - this is a pair of Bridgecom BCM220 mobiles (identical to the radios used in the Bridgecom 220 repeater package) - this repeater is connected to a fob where I did bring out both audio channels. So hence, I am able to split the PL and inject that into the 'data' input of the BCM220 radio. This works well - so all good there!
What I am observing is that I have some high frequency noise on the audio out of the Bridgecom TX radio; it's subtle, but it is there. One thought that I had is whether this was coming off discriminator of the RX radio. I turned the RX radio off and the noise is still there. Now coincidentally, I saw a message scroll by the display on the TX radio "PLL UNLOCKED" - ta da... is this synthesizer whine that I am hearing??? - I am going to test with a local mic tonight and see if the noise is still there (independent of the USB fob / app_rpt, etc...).
Running 3 full-duplex nodes on the Pi - I've been doing that for sometime; the difference now is the radio's - the RPi 2 and fobs are the same. I didn't have this issue before.
More to follow... but for now, I wanted to provide an update and get us back to a technical discussion! ;).
Cheers,
Ramesh.
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On 7/11/2016 4:14 PM, Loren Tedford wrote:
Just curious what pl tone are you using?? I have heard some stories where pl tones where just a little too hot creating some thing similar to what you describe i personally have not yet seen this but It might be something to consider..
PL is 103.5Hz - but the noise I am hearing is when I do a 'radio tune txvoice' - the PL is not being sent at that point. Ramesh.
Ramesh, Are you DC coupled to the TX side or thru a blocking cap? -- Thanks in Advance Bob, WØNQX Kansas City Metro Area http://drsm0ke.net http://byrg.net http://sm0kenet.net Quis custodiet ipsos custodes? -- On Mon, Jul 11, 2016 at 3:17 PM, Ramesh Dhami (VA3UV) <Ramesh@va3uv.com> wrote:
On 7/11/2016 4:14 PM, Loren Tedford wrote:
Just curious what pl tone are you using?? I have heard some stories where pl tones where just a little too hot creating some thing similar to what you describe i personally have not yet seen this but It might be something to consider..
PL is 103.5Hz - but the noise I am hearing is when I do a 'radio tune txvoice' - the PL is not being sent at that point.
Ramesh.
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participants (6)
-
Bob Brown - WØNQX -
Kevin Custer -
Loren Tedford -
Ramesh Dhami -
Ramesh Dhami (VA3UV)
-
Steve Zingman