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[aprssig] Re: d700 miniDIN

Wes Johnston aprs at kd4rdb.com
Mon Feb 7 20:33:41 UTC 2005


Cool, they have two....
http://www.microcenter.com/single_product_results.phtml?product_id=0119772 which
has little wings for mounting and
http://www.microcenter.com/single_product_results.phtml?product_id=0164921 .

Thansk for tip.

Wes
--



Quoting Josh Gould <kc8eqa at columbus.rr.com>:

> I think I've seen them at the local MicroCenter, You may want to check
> Jameco.
>
> 73
> Josh
>
> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Wes Johnston
> Sent: Monday, February 07, 2005 3:16 PM
> To: TAPR APRS Mailing List
> Cc: Stephen H. Smith
> Subject: Re: [aprssig] Re: d700 miniDIN
>
>
> Instead of building a Y cable to split out the rj45 mic connector, I
> thought it might be easier to just plug the tiny track into the mini6
> connector... it could sense the MIC's PTT status by using the PTT line
> on the mini6... but I guess not.... now I'm back to original plan to
> build a Y cable for rj45's... bummer.
>
> Now that you mention mini6 ptt muting the mic, you have me thinking that
> the "right" way to do this is to use the tiny track hooked to the mini6
> and tap the PTT IN that tiny track needs from the MIC PTT line.  That
> way tiny trak can keep track of the MIC's PTT status and when it aserts
> the PTT, it'll mute the mic - cutting down on wind noise and such in the
> car and making the packet clearer.
>
> I guess everyone's seen those plastic phone splitters.... they plug into
> a wall socket and have molded in the rear of them two side by side rj11
> recepticals... wonder if they make those in rj45? Wes
> --
>
>
>
> Quoting "Stephen H. Smith" <WA8LMF2 at aol.com>:
>
> > Wes Johnston wrote on 2/7/2005, 11:44 AM:
> >
> >  > Can anyone confirm that the PTT line in the mini-din connector
> > follows  > the MIC  > PTT button?  I'd like to attach a tiny track to
> > the D700
> >
> > Not sure what you are asking
> >
> > If you mean "Does the miniDIN6 jack operate on the same band as
> > selected for the Mic (i.e. selected by pushing in either the left or
> > right volume knob band select)", then the answer is YES.
> >
> > If you mean "Are the PTT pin of the mic jack and the PTT pin of the
> > miniDIN jack connected in parallel (i.e. so a TinyTrak connected on
> the
> > miniDIN could monitor the state of the mic's PTT button)",    then the
> > answer is NO.
> >       The miniDIN PTT line is processed separately from the mic's PTT,
>
> > and is used to mute the mic input whenever the miniDIN input is
> > active.
> >
> >
> >
> > Full details on the MiniDIN 6-pin "DATA" connector follow.  This is a
> > reprint of a post I have made many times on various groups and mailing
>
> > lists about this issue.....
> >
> > ======  PASTE ========
> >
> >
> > The 6-Pin MiniDIN "DATA" or "PACKET" connector is an industry standard
>
> > adopted by all the Japanese ham mfrs.  It is now superseding the
> > various proprietary 7, 8 and 13-pin full-sized DIN connectors used by
> > various manufacturers.  The contacts on this connector provide access
> > to:
> >
> > 1)  TWO kinds of receive audio:
> >      Raw non-deemphasized discriminator output sometimes labeled "9600
>
> > Baud Receive".
> >      De-emphasized squelched audio similar to what comes out the
> > speaker, but at a fixed level unaffected by the volume control. It is
> > sometimes labled "1200 Baud Receive" or "RXD".
> >      On multi-mode radios (Yaesu FT-817, Yaesu FT-100, Icom 706, etc),
>
> > only the "1200 baud" output will be live on AM, SSB or CW since the
> > 9600 baud output is associated only with the discriminator of FM
> > receivers.
> >
> > 2)  TX audio input (sometimes misleadingly labeled "TX Data Input" or
> > "TXD")  In some radios, a menu setting for "1200" vs "9600" baud will
> > determine if this input goes either into the same channel as the mic
> > input (but at a higher audio level) for 1200 baud packet, SSTV,
> > EchoLink, AFSK RTTY, etc,   or is DC-coupled directly into the TX
> > modulator (for 9600 baud packet).
> >
> > 3)  TX PTT (confusingly labeled "Standby" by Kenwood) -- normal
> > ground-to-transmit line  just like most mic inputs.
> >
> > 4)  Receiver Squelch status line (normally no sig-squelch-closed = 0V,
>
> > signal active-squelch open = 5V). Sometimes labled "COR" (Carrier
> > Operated Relay - an archaic term from the early days of FM repeaters),
>
> > "COS" (Carrier Operated Switch), "RX", "CD" (Carrier Detect),
> > "Activity" or "Busy".
> >
> > 5)  Common/Ground.
> >
> >
> > Note that despite the misleading labels referring to data input and
> > output, the jack only carries AUDIO, AUDIO, AUDIO!    THERE IS NO
> ACTUAL
> > RXD or TXD DATA in the sense of RS-232 or TTL-level streams of 1s and
> > 0s anywhere on this connector!!!
> >
> > This connector is the perfect point to connect packet TNCs, soundcard
> > interfaces, phone patches, IRLP/EchoLink controllers, APRS trackers,
> > paging encoders, or any other device that needs access to the transmit
>
> > and receive audio of a radio.
> >
> > These audio inputs and outputs are high-level (100-300mV), similar to
> > home stereo "LINE" input level seen at RCA jacks on tuners, amps, tape
> > decks, etc;   NOT the the 5-10mV level seen at most mic input jacks.
> >       NOTE that this means that you have to set the audio output
> > ("TRANSMIT") level of sound card interfaces, TNCs, data controllers,
> > APRS trackers, etc to a MUCH higher level than you would for a normal
> > connection into the mic jack.  With some devices you will have to
> > shift internal jumpers,  or exercise software menu commands to
> > increase output level (recent Kantronics TNCs for example).
> >
> >
> > On most radios with this port, grounding the DIN-6 PTT line mutes the
> > front panel mic input to prevent extraneous shack noises from getting
> > mixed with whatever you feed into the transmit audio input.
> >
> > You can connect a TinyTrak here very effectively if you:
> > 1)  Change R5 (220K resistor) on the TT to about 27-33K to boost the
> > TX audio level from mic level to line level.
> > 2)   Connect the direct DC-coupled "CARRIER DET" line of the TT to the
> > MiniDIN "SQUELCH" or "COR" line.
> >
> > An annotated pinout diagram of this connector, useful as a worksheet
> > for making up cables,  is on my website at:
> >     http://members.aol.com/wa8lmf/miscinfo
> >
> > Click through the link on this page which will take you to a directory
>
> > of assorted downloadable files, not a web page.  Look for the file
> >        MiniDIN6-Packet.pdf
> >
> > Note that this connector is exactly the same one used on PS/2 keyboard
>
> > and mouse cables.  A  PS/2 keyboard extension cable is an excellent
> > source of a plug and cable assembly to mate with the jack on the
> > radio. [at a fraction of the cost of the optional Kenwood or Yaesu
> > cable assemblies! ] Cut the female end off, strip the bare end and
> > connect the bare leads to the appropriate pins of whatever mates with
> > your tracker, TNC, or soundcard interface.
> >
> >
> >
> >
> >
> >
> >
> > Stephen H. Smith                wa8lmf (at) aol.com
> >
> > Home Page:                      http://wa8lmf.com
> >
> > New/Updated Symbols for         http://members.aol.com/wa8lmf/ham
> > UI-View and APRSplus:
> >
> >
> >
> >
> >
> > _______________________________________________
> > aprssig mailing list
> > aprssig at lists.tapr.org
> > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
>
>
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