Carter
This has the F1500 pin out for the flex wire port.
I have an HLA 300V that will do a cleen 300W or so with the 5W drive. A bit
more at lower frequencys.
The RCA port is PTT when grounded by pin 3. Flex recomend a diode reverse
biased to earth if driving a relay to protect the open collector/drain output.
The HLA 300 is not direct to the relay as far as I can tell. I have mine in
series with an MFJ 1026 noise canceller the PTT switch of which is pulled low
by the amp if powered off.
A series diode fixes this.
Andrew
http://kc.flexradio.com/KnowledgebaseArticle50449.aspx
> From: carter...@verizon.net
> To: flexradio@flex-radio.biz
> Date: Fri, 25 Feb 2011 08:24:27 -0500
> Subject: [Flexradio] CW Parameters Settings for FLEX-1500--N3AO
>
> Hi Fellow FLEXERS,
>
> I have now successfully upgraded to v.2.0.19 RC1, and am extremely pleased
> to find so much improvement in the CW. I have put my external keyer to the
> side, and have plugged my Benchers directly into the front panel of the
> "1500." The improvement is remarkable, and I join all the others in thanking
> the whole team for all the months of hard work. It is much appreciated. I am
> telling everybody I know about the big change/improvement!!!
>
> Here are my new concerns, and a question:
>
> I have purchased an HF Linear Amplifier, an Italian-made HLA 150 plus, which
> very nicely takes the 1500's 5 Watts and, depending on the band I choose on
> my 80-Meter horizontal loop (up 40' in the rough shape of a square), on some
> bands I am now seeing upwards of 125 Watts out, and I'm pleased.
>
> When doing CW, though, I can hear the T-R Switch in the amp clicking on and
> off between the words, as between the first CQ and the second CQ I often
> send, or between my callsign N3AO and the second N3AO I send. I don't know
> much about amps at HF and am concerned that this on-off flip-flopping may
> harm my amp. If there's a risk, what parameter should be changed to prevent
> the problem? I've tried to find the info on my own but so far have come up
> dry. Any suggestions, please?
>
> A secondary question, regarding this HLA 150 plus amp, if you have one:
>
> Right now I do not have a cable connected from the 1500's FLEXWIRE I/O jack
> to the RCA jack on the back of the amp. I am assuming that this cable has to
> do with auto-band-changing, but there's not much documentation in the amp's
> manual on this. Anyone know the pin outs on each end of a cable I should
> make, please?
>
> TIA,
>
> Carter
> ---------------
> Carter Craigie, N3AO
> 570 Brush Mountain Road
> Blacksburg, VA 24060
> carter...@verizon.net
> Cell: 540-250-8184
>
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