[NHRC-user] RE: NHRC-user digest, Vol 1 #24 - 1 msg

[Jeff Otterson]

Hi,
   We would have to modify the firmware for you.

   I would like to see your keying problem fixed first.

   how is the PNP transistor configured?

   Regards,

   Jeff

At 05:37 PM 5/5/2003, you wrote:
>PNP is the trans. How do we go about changing the firmware? I have access to
>a burner. One of the many fine gifts i get to play with at work! However i
>requested one because i have never used such a device. Why not teach myself
>on duty :). I would prefer to not suck the chip off the board????,thanks for
>all the help. I hope others can learn something from my questions,73,p
>
>-----Original Message-----
>From: nhrc-user-request at nhrc.net [mailto:nhrc-user-request at nhrc.net]
>Sent: Friday, May 02, 2003 11:03 PM
>To: nhrc-user at nhrc.net
>Subject: NHRC-user digest, Vol 1 #24 - 1 msg
>
>
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>Today's Topics:
>
>    1. Re: RE: NHRC-user digest, Vol 1 #22 - 2 msgs (Jeff Otterson)
>
>--__--__--
>
>Message: 1
>Date: Fri, 02 May 2003 06:20:55 -0400
>To: nhrc-user at nhrc.net
>From: Jeff Otterson <jeff at nhrc.net>
>Subject: Re: [NHRC-user] RE: NHRC-user digest, Vol 1 #22 - 2 msgs
>Reply-To: nhrc-user at nhrc.net
>
>Hi Pat,
>
>    are you using a PNP transistor to generate the keying voltage?
>
>    The NHRC-6 expects the audio delay (when enabled) to be about 1/4
>second.  That delay is set in the firmware.  The firmware could be modified
>to work better with longer delays.
>
>    Regards,
>
>    Jeff
>
>At 04:15 PM 5/1/2003, you wrote:
> >Ok great jeff!. Here goes my first one. I am using a transistor to take the
> >ptt off my #6,and gimme about +3 to 6 volts to key my radio. About every 2
> >minutes it is keying by itself. I have attempted to add some resistance
>into
> >the ptt but that didnt seem to do it. Everything is bypassed too. I am used
> >to building antennas,playing with the digital modes,dx,ing,weak signal,but
> >for the last 5 months i have been attempting to educate myself on these
> >transistor things. I like tubes better! Any thoughts? Along with that,i am
> >thinking about using a vox setup instead,because i am using a delay board
> >and the transmit audio radio is unkeying just slightly before the audio is
> >ended. I need the full 2+ seconds on the delay due to the key up delay on
> >the re-transmit radio. I am hoping that others may get some insite form
> >watching this discussion. My current project is linking to some cellulkar
> >stuff. If any HAMS would like some details,email me direct and ill be glad
> >to share the nightmare with you :).
> >
> >
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