[hpsdr] Hpsdr Digest, Vol 28, Issue 22

Mon Jun 23 18:50:01 PDT 2008

Guys,
  I don't have any ptt jumpers and did not have to disable ptt. I just press the tX button on the display to go in and out of TX. My power is low though. I figure that is a software issue since I show 550 watts of reflected power. J/O/P on Atlas homebrew QSD on 455 KHz. IF in SDR 1000 mode.

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Today's Topics:

1. Problem with Penny! (PETER BUCK)
2. Re: Problem with Penny! (Phil Harman)
3. Re: Problem with Penny! (PETER BUCK)
4. Re: Penny stuck on transmit (Gerd Loch)

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Message: 1
Date: Mon, 23 Jun 2008 11:19:08 +0100 (BST)
From: PETER BUCK 

Subject: [hpsdr] Problem with Penny!
To: hpsdr at hpsdr.org
Message-ID: <655200.8716.qm at web87002.mail.ird.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi all,

Penny worked on transmit without Janus installed giving 140mW out using an earlier version of the PowerSDR software - can't remember which one, but when I updated via svn to the latest version (PowerSDR branches kd5tfd PennyMerge 1.10.4 + Base SVN 2326), the PowerSDR load fails with a message asking if Janus is installed/powered. The problem is peculiar because it is intermittent. The setup is just Ozy + Penny on the Atlas bus, - using entirely separate receiver not SDR1000. Any advice please?
On another issue - is a general release coming soon which allows Penny to operate at 0.5W output - with ALC disabled? I don't have any facility here to delve into the source code.
Thanks
Pete G3LWT

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Message: 2
Date: Mon, 23 Jun 2008 19:57:30 +0800
From: "Phil Harman" 

Subject: Re: [hpsdr] Problem with Penny!
To: "PETER BUCK" 
, 
Message-ID: <007d01c8d528$50ec2300$0201a8c0 at phil>
Content-Type: text/plain; charset="iso-8859-1"

Hi Peter,

I hope Bill can help you with the software problem, I'm using the same version of PowerSDR and do not see that issue. 

The present code in Penelope should allow you to get 0.5w out with the ALC running. Have you tried adjusting the per-band gain in PowerSDR to get some more drive or are you finding that the ALC is restricting you to 140mW?

73's Phil...VK6APH 

----- Original Message ----- 
From: PETER BUCK 
To: hpsdr at hpsdr.org 
Sent: Monday, June 23, 2008 6:19 PM
Subject: [hpsdr] Problem with Penny!

***** High Performance Software Defined Radio Discussion List *****

------------------------------------------------------------------------------

Hi all,

Penny worked on transmit without Janus installed giving 140mW out using an earlier version of the PowerSDR software - can't remember which one, but when I updated via svn to the latest version (PowerSDR branches kd5tfd PennyMerge 1.10.4 + Base SVN 2326), the PowerSDR load fails with a message asking if Janus is installed/powered. The problem is peculiar because it is intermittent. The setup is just Ozy + Penny on the Atlas bus, - using entirely separate receiver not SDR1000. Any advice please?
On another issue - is a general release coming soon which allows Penny to operate at 0.5W output - with ALC disabled? I don't have any facility here to delve into the source code.
Thanks
Pete G3LWT

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Message: 3
Date: Mon, 23 Jun 2008 15:07:21 +0100 (BST)
From: PETER BUCK 

Subject: Re: [hpsdr] Problem with Penny!
To: Phil Harman 
, HPSDR forum 
Message-ID: <533249.78401.qm at web87007.mail.ird.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi Phil & All,

Thanks for quick response! After I sent the mail, and then read your reply, I remembered some while back problems with PowerSDR in another context with SDR-1000. The solution may be of some help to others.
If there is a lot of USB traffic, some not related to PowerSDR, then PowerSDR may play up in various strange ways. This happened with the USB adapter for the SDR-1000, and now a similar problem (in terms of symptoms) can occur with HPSDR and its USB driver. My set up is Penny/Ozy on Atlas, USB2 to a 6750 Core 2 duo based computer with 4 GB RAM and fast graphics card with 1G memory. This should easily cope with PowerSDR, - and it does - CPU load is never more than 10% with two full screen dispays operating.
However, I am also running Phil C's QS1R as receiver - also generating lots of USB traffic of course. I have now discovered that if I load and run PowerSDR with Penny fired up, there is no problem, and the SDRMAXII software can then be loaded and run with no problem either. If I try to start PowerSDR with SDRMAXII running,then the problem with loading PowerSDR occurs.
With either programmme running on its own, CPU load is about 10% maximum, but the two together give a 50% CPU load - a fight is on in the USB traffic!
Provided care is taken with the load sequence, I can now get over 0.5W output from Penny without problems, using only the drive control, - use of drive per band settings is not necessary. Thanks for your comments and hope my findings are of some use.
Pete, G3LWT

Phil Harman 
wrote:
Hi Peter,

I hope Bill can help you with the software problem, I'm using the same version of PowerSDR and do not see that issue. 

The present code in Penelope should allow you to get 0.5w out with the ALC running. Have you tried adjusting the per-band gain in PowerSDR to get some more drive or are you finding that the ALC is restricting you to 140mW?

73's Phil...VK6APH 

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Message: 4
Date: Mon, 23 Jun 2008 10:26:09 +0200
From: "Gerd Loch" 
Subject: Re: [hpsdr] Penny stuck on transmit
To: "'Dan Babcock'" 
Cc: hpsdr at hpsdr.org
Message-ID: <001801c8d50a$ca26aa60$0d80a8c0 at TARGA>
Content-Type: text/plain; charset="iso-8859-1"

Hi Dan, 

I was not aware that DISABLE PTT is checked through the starting option.
Now I can live with that until there is a new software version released.
Just for information: cw from the memory is not working in this mode.

I do not know what happened first but afterwards when I plugged the first
Penelope in again it also worked. So there is no hardware fault.

73, Gerd
DJ8AY

-----Original Message-----
From: Dan Babcock [mailto:n4xwe at yahoo.com] 
Sent: Monday, June 23, 2008 6:29 AM
To: g.loch at nt-electronics.de
Subject: Re: AW: [hpsdr] Penny stuck on transmit

Hi Gerd,

You are very welcome. 

By way of introduction I was a member of the Penelope production team. My
claim to fame is that I performed the RF Deck testing on all but 3 of the
350 Penelope's. By definition, I became aware of every possible hardware
configuration mistake during testing.

If you haven't figured it out already, the Disable PTT requirement is only a
temporary situation. When the fully updated code is available, it will no
longer be required. 

1) Without DISABLE PTT enabled, Penelope transmit is always on. I believe
this is because of the current state of the Ozy firmware.
2) With DISABLE PTT enabled, MOX, TUN and the hardware PTT are still
usable.

73,

Dan N4XWE

----- Original Message ----
From: Gerd Loch 
To: Dan Babcock 
Sent: Sunday, June 22, 2008 7:14:06 AM
Subject: AW: [hpsdr] Penny stuck on transmit

Hi Dan,

thanks for your efforts to help.
I know all the statements from the manual and I also have tried all setting
options including removal of the mike.
But as soon as I remove DISABLE PTT under SETPUP GENERAL OPTIONS either
maually or automatically by selecting SDR1000 as Radio Model Penny ist stuck
at transmit. When I activate DISABLE PTT I can receive but of course MOX is
not active.

I think I have to go through the SW to find out what is wrong.

73, Gerd
DJ8AY

-----Urspr?ngliche Nachricht-----
Von: Dan Babcock [mailto:n4xwe at yahoo.com] 
Gesendet: Sonntag, 22. Juni 2008 15:31
An: g.loch at nt-electronics.de
Betreff: Re: [hpsdr] Penny stuck on transmit

Hello Gerd,

Do you have a microphone connected to the audio jack on Penny? If yes, are
the PTT jumpers configured correctly for the microphone you are using? The
configuration of the jumpers as shipped from TAPR will not work with every
microphone. 

Also make sure the microphone plug is pushed completely into the jack.

To check for possible incompatibility between the microphone configuration
and the jumper settings , remove the microphone from the circuit. The
transmitter should stop transmitting.

>From the Penelope Operating Manual

PTT Jumper Settings
If your microphone is fitted with a PTT switch, then set the PTT jumper to
identify the terminal
(ring or tip) that this PTT switch is connected to (see Table 4).

Note: MAKE SURE THIS IS NOT THE SAME TERMINAL YOUR MICROPHONE IS CONNECTED
TO.

Note: DO NOT SET THIS JUMPER IF YOUR MICROPHONE
HAS NO PTT SWITCH OR YOU DO NOT CONNECT IT.
WARNING: IF YOUR MICROPHONE PLUG USES TIP AND
SLEEVE CONNECTIONS ONLY AND YOU SET THE PTT
JUMPER TO THE RING SETTING, THE PTT ON PENELOPE
WILL BE PERMANENTLY ACTIVATED.

If you wish to connect an external PTT switch connect it
between the sleeve terminal of the plug and which ever
terminal is not being used by the microphone. Set the PTT
jumper accordingly.

73,

Dan N4XWE

----- Original Message ----
From: Gerd Loch 
To: Phil Harman 
; hpsdr at hpsdr.org
Sent: Sunday, June 22, 2008 2:42:02 AM
Subject: Re: [hpsdr] Penny stuck on transmit

***** High Performance Software Defined Radio Discussion List *****

Hi Phil,

I have pulled out Mercury-EU but it is still the same thing.

73, Gerd
DJ8AY

-----Urspr?ngliche Nachricht-----
Von: Phil Harman [mailto:phil at pharman.org] 
Gesendet: Sonntag, 22. Juni 2008 11:27
An: g.loch at nt-electronics.de; hpsdr at hpsdr.org
Betreff: Re: [hpsdr] Penny stuck on transmit

Hi Gerd,

Does this only happen when you have both Penny and Mercury on the Atlas bus 
i.e. does Penny work OK on her own?

I have not yet completed the FPGA code for both Penny and Mercury working 
together so it is possible it will not work just yet.

73's Phil...VK6APH

----- Original Message ----- 
From: "Gerd Loch" 
To: 
Sent: Sunday, June 22, 2008 4:10 PM
Subject: [hpsdr] Penny stuck on transmit

> ***** High Performance Software Defined Radio Discussion List *****
>
> Though I have pp-ptt disabled when starting PowerSDR Penny ist stuck 
> to transmit when pushing the start button on the console and having 
> enabled Radio Model SDR1000 which I think has to be eanbled when I 
> want be able to transmit from Penny. No change with any jumper setting 
> on PTT. I am using Mercury-EU and Penny on Atlas and running PowerSDR 
> (KD5TFD) 10June2008....BaseSVN 2325 ***PP PTT disabled***
>
> I have to set the Radio Model to none to be able to receive from
> Mercury-EU.
>
> What can be wrong?
>
> Gerd, DJ8AY
>
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----

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Checked by AVG.
Version: 8.0.100 / Virus Database: 270.4.1/1512 - Release Date: 6/21/2008 
9:27 AM

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End of Hpsdr Digest, Vol 28, Issue 22
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