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ZL3AI > APRDIG 23.05.04 12:36l 237 Lines 9160 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Monday, May 17, 2004.
1. HF Gateway
2. Re: HF Gateway
3. Re: GlobalSecurity.org take on GPS vulnerability.
4. Re: dumb question about TT3
5. Re: Conversation with Kenwood at Dayton
6. Re: Conversation with Kenwood at Dayton
7. Re: TravelPlus to D7A
8. Where to Get County/State/Street ZIPs?
9. Re: Conversation with Kenwood at Dayton
10. Re: Conversation with Kenwood at Dayton
11. Re: Where to Get County/State/Street ZIPs?
12. Re: Conversation with Kenwood at Dayton
13. Re: dumb question about TT3
14. Re: Conversation with Kenwood at Dayton
15. Re: HF Gateway
16. Re: Conversation with Kenwood at Dayton
17. Re: Conversation with Kenwood at Dayton
18. RE: HF Gateway
19. Printable APRS symbol table
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Subject: HF Gateway
From: James Smith <k9apr@sbcglobal.net>
Date: Mon, 17 May 2004 02:21:14 -0500
X-Message-Number: 1
Hello all,
Has anyone connected a Icom IC-706 and a Kam plus together for use as a
HF Gateway? if so could you please provide pinouts for either the mic or
acc hook up.
TIA,
73, K9APR/AG :-)
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Subject: Re: HF Gateway
From: "Stephen H. Smith" <WA8LMF2@aol.com>
Date: Tue, 18 May 2004 01:47:40 -0700
X-Message-Number: 2
James Smith wrote on 5/17/2004, 12:21 AM:
>Has anyone connected a Icom IC-706 and a Kam plus together for use as a
>HF Gateway? if so could you please provide pinouts for either the mic or
>acc hook up.
By gateway, do you mean to the Internet or to 2 meter RF? If the latter
you are going to need TWO radios, one for the HF port (706?) and another
one for the 2M port (could be another 706 but nearly any 2M FM rig would
do).
The 6-Pin MiniDIN6 ACC connector on the IC-706 is the same as on other
radios so the following post that I endlessly repeat on numerous
APRS-related mailing lists applies:
====== 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
Ham Radio/Mobile SSTV page: http://members.aol.com/wa8lmf/ham
APRS Stuff
http://members.aol.com/wa8lmf/aprs
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Subject: Re: GlobalSecurity.org take on GPS vulnerability.
From: "Cap Pennell" <cap@cruzio.com>
Date: Mon, 17 May 2004 02:42:25 -0700
X-Message-Number: 3
Thanks, Gerry, for all the years you've been keeping us on track here on
APRSSIG. Oh so credible and generous and patient a teacher you are, even if
we sometimes act like we are differential cows out standing in our field.
73, Cap KE6AFE
>-----Original Message-----
>From: bounce-aprssig-36475@lists.tapr.org
>[mailto:bounce-aprssig-36475@lists.tapr.org]On Behalf Of Gerry Creager
>N5JXS
>Sent: Sunday, May 16, 2004 17:46 PM
>To: TAPR APRS Special Interest Group
>Cc: TAPR APRS Special Interest Group
>Subject: [aprssig] Re: GlobalSecurity.org take on GPS vulnerability.
>
>OK. I've some opinions, and they might not be popular. If you don't
>appreciate them, I'm sorry.
<snip>
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Subject: Re: dumb question about TT3
From: "Steve Slay" <snslay@swbell.net>
Date: Mon, 17 May 2004 07:02:57 -0500
X-Message-Number: 4
If you do this to a Tripmate it will have to re-acquire each time taking
several seconds/minutes to get a lock. I'm not sure about the about the
Digitraveler.
Steve Slay
KC5MVY
Where am I now? http://tinyurl.com/i4ia
See the weather RADAR http://tinyurl.com/i4i7
Try this one http://tinyurl.com/i3ni
"Only two things are infinite, the universe and human stupidity, and I'm not
sure about the
former." Albert Einstein
----- Original Message -----
From: "Wes Johnston" <wes@johnston.net>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Sunday, May 16, 2004 7:41 PM
Subject: [aprssig] dumb question about TT3
>Dumb question about tiny trak 3... when it is NOT using 'power switch'
>mode, is the power switch on all the time? I'm thinking of making it
>assert +5v to the pin on a tripmate or digitraveler and would like them to
>stay on all the time when it is in mode 1, and cycle power between
>transmissions when in mode 2. Or should I just set mode1's power switch to
>some time greater than the actual TX interval?
>
>What has just occurred to me is that GPS units like the tripmate and
>digitraveler can have power on them all the time and by asserting DTR or RX
>pins the GPS will power up and down on it's own... no relay needed.
>
>Wes
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Subject: Re: Conversation with Kenwood at Dayton
From: vxaprs@juno.com
Date: Mon, 17 May 2004 12:19:25 GMT
X-Message-Number: 5
Following the suggestion of this thread, I went to the Kenwood booth to
give them my suggestions and encouragement. I talked to Leo who said
nothing is in the works for the D7 and that he would know about it if there
was. Smoke and mirrors?
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