[hpsdr] Penelope + Munin + AL-811H Advice.

[n3evl]

Hi Helmut,

Thanks for the advice and clarification regarding the use of the Open 
Collector outputs.  I'll look into obtaining an external relay - can you 
suggest or recommend a suitable device?

73, Pete, N3EVL

On 8/3/2013 2:41 AM, Helmut, DC6NY wrote:
> Hi Pete,
>
> the Open Collector  outputs are provided for frequency selective
> applications (LPf, BPF control etc.) As the PTT output (MOSFET 2N2007) is
> current and voltage limited and your AL-811 possibly needs higher switching
> voltage I would strongly suggest a small external 12V relay in parallel to
>
> key Munin.
> The relay delay times can be compensated with a RF delay in setup/options
> settings. I see no reason for different switching sequence between Munin and
> the AL-811 amp.
>
> 73, Helmut, DC6NY
>
>
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: hpsdr-bounces at lists.openhpsdr.org
> [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von n3evl
> Gesendet: Samstag, 3. August 2013 01:24
> An: HPSDR list
> Betreff: [!! SPAM] [hpsdr] Penelope + Munin + AL-811H Advice.
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> I recently acquired an AL-811H amplifier and would like to hook it up to my
> existing Atlas based HPSDR - namely Penelope + Munin.  I'd appreciate some
>
> advice on setting up this configuration.
>
> I'm already using the PTT outputs on Penny to put Munin into TX. I'm
> assuming I need to use one of the Open Collector outputs to key the AL-811H.
> I see there are some timing options in PowerSDR so I'm guessing I need to
> and can, in fact, sequence the keying of both amps?
> My assumption is that I want the AL-811H to got to TX first, then Munin go
>
> to TX, then Penelope to generate RF (and presumably the reverse sequence
> when going back to RX?
>
> Please let me know if I have this concept right and if PowerSDR supports
> this type of sequencing.
>
> I'd also be interested in any other tips regarding using HPSDR with this amp
> setup.
>
> Thanks,
>
> Pete, N3EVL
>
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