[hpsdr] Penelope J6 Open Collectors on TX

[Phil Harman]

Hi Pete,

I can confirm that the J6 Open Collector outputs do work on Tx. I’m using J6 pin 1 to switch my linear on.

I’m using PowerSDR v3.3.9 with the same code releases that you are using.

I suggest you try a later version of PowerSDR and a full database reset. 

73 Phil...VK6PH 

From: n3evl 
Sent: Saturday, December 24, 2016 3:20 AM
To: HPSDR list 
Subject: [hpsdr] Penelope J6 Open Collectors on TX

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I'm attempting to use the Penelope J6 Open Collectors to control band selection on the LPF board of an external homebrew amplifier.  

I've configured the matrix in PowerSDR with the desired pin-to-band settings; the settings for RX and TX are identical.

On my external LPF hardware I have an indication via an LED of which bank of filters is selected.  For RX all looks well - the correct LED lights up as I change bands via PowerSDR so this suggests the J6 pin utilization is correct and my wiring from Penelope outward is OK.

When in TX mode (either via the Tune button or via the MOX button) none of the LEDs are lit so I end up with no filter selected.

I've measured the voltage at the various pins (the relays on the LPF board are driven by 12V) and for a given pin, when not enabled, I see 12V and when enabled (in RX mode), I see approx 9V.  For the same pin in TX mode the voltage does not change and remains at 12V suggesting the pin is not being enabled by the software perhaps.

Note: 
1) the LPF does not know or care if the mode is RX or TXÂ  so there is nothing else at play on that hardware that might be different in TX mode.
2) Since this is an LPF that is only in use during TX, I don't really need to select a given filter on RX but obviously need this selection to be made on TX.

Has anyone got experience using the J6 pins on TX and can confirm they work and agree with the settings in PowerSDR?  On looking at the Penelope documentation I noted that there does not appear to be any restriction on using the pins for both TX and RX - it just says to check the boxes in both parts of the matrix.  Is there perhaps another setting I missed that enabled J6 for TX?

Various versions are shown below (yes, probably time I upgraded to something newer)

OpenHPSDR mRX PS v3.2.28 (10/3/15)
Metis 3.0
Mercury 3.4
Penny[lane] 1.8

Thanks for any advice,

Pete, N3EVL





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