Re: [amsat-bb] Digi QSO via ISS? (use >)
If packet stations simply put a ">" as the first character of their packet then they instantly become "APRS Sttus" messages and will show on the front panel of ALL APRS radios and handhelds.
Without that, the packet is undefined and not displayed as being non-APRS. So packet stations desiring to be seen by most of the others on ISS, should remember that if they want to be seen by others begin with a">".
Bob, WB4APR
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Patrick STODDARD (WD9EWK/VA7EWK) Sent: Monday, May 11, 2015 5:52 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] Digi QSO via ISS?
Sean (and others),
That looks good. The initial "CQ" call could start with receiving a station's beacon containing the location or other text that is sent through the ISS digipeater. Sometimes I'll see only a signal report from the other station (59 or 599), since the location has already been received from a beacon packet with that information. This would be similar to sending only a "59" when working a DXpedition, where they really don't care to hear too much when making lots of QSOs. I don't normally send a CQ when on ISS passes (or, when it's behaving, NO-44 passes), but will enable a beacon with my position and my two call signs when I'm at the radio.
By using APRS messaging instead of just typing free-form text, you will be able to make packet QSOs with stations that may only have radios like the Kenwood TH-D72A or TM-D710 (or their predecessors), as well as those using programs like UISS that speak APRS messaging, or simpler terminal programs that don't speak APRS messaging. These radios can receive the APRS messages, and - using the DTMF pads - send APRS messages. My TH-D72A will see the call of a station that sends me a free-form line of text like:
WD9EWK-9 UR 599 (grid)
but not the text. I might be able to see this packet on ariss.net, but that would not be receiving it on my radio, so no QSO. If that free-form text line includes a colon before the text:
WD9EWK-9 :UR 599 (grid)
(my call with -9, space, colon, then text)
my TH-D72A would interpret that as an APRS message directed to me, from whoever sent it to me. The sender's call and a date/time stamp would be stored with the received message, and then I can view this message on the HT. From there, I can quickly send a reply without having to enter the other station's call. I'm typing out messages like we would on an old flip-style mobile phone, pressing the buttons repeatedly to get certain characters on the screen. This works, and provides a way to interact with other stations without the need for a computer or other device connected to the radio.
I do not enable any automatic responses when I receive messages, other than the ACK responses if I receive an APRS message that expects one. Some will enable an automatic response that may say something like "Thanks, 73!", and I think the Kenwood radios will put an "AA:" before the response if it is generated by the radio and not the operator. Other than my position packets, I try not to add to the clutter from the unattended stations that squawk during every ISS pass.
Whether I'm at home or on the road, using my Elk antenna or even a long telescoping whip, I find I can get through the ISS digipeater with my TH-D72A at just 5 watts. From Arizona, I have worked stations on the ISS as far away as Wisconsin, Indiana, and east Texas. On NO-44, I have worked stations from home as far as Mississippi. I am also working stations at hamfests or other demonstrations, and on my recent grid expeditions to Las Vegas and New Mexico.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Mon, May 11, 2015 at 2:15 PM, Sean Kutzko via AMSAT-BB amsat-bb@amsat.org wrote:
There needs to be an exchange of info and acknowledgement from both
stations that reports were received on both ends.
Kx9x: CQ KX9X Kc0bmf: KX9X de KC0BMF EM29 Kx9x: KC0BMF R FN31 Kc0bmf: KX9X R 73 Kx9x: 73 QRZ KX9X
UISS software can handle this quite easily.
That's my opinion, anyway.
Sean KX9X
Sent from Sean's iPad
On May 11, 2015, at 4:02 PM, John Fickes kc0bmf@gmail.com wrote:
Steve Sure you can. What are you using for software ? I use UISS and what I do is send call sign, some sort of signal report (it could be 59,599,grid or combination of report and grid ) and then a 73. I think as long as there is protocol similar to JT65 where the three things are sent and received in back and forth order, other stations call,a report and 73, this way your pretty sure there is someone on the other end and your not just getting someones automatic
announcement. Hope to see you on.
73 John KC0BMF1:16 Minutes:Greatest commercial EVER https://www.youtube.com/watch?v=hxU1ZhINaHk
On Mon, May 11, 2015 at 2:16 PM, Steve Kristoff skristof@etczone.com wrote:
I apologize if this has been dealt with in a previous thread, but if it was, I missed it. Can we do a valid QSO by ISS digipeater? It seems to me that a message directed from one station directly to another station with a callsign, name and grid square and a directed reply in the same format would constitute a valid QSO. I'd like to hear other's thoughts. Even it doesn't constitute an "official" QSO, I'd like to try it
anyway.
I've been sending messages to specific stations on the Heard list via the UISS software, but have never received a reply specifically
addressed to me.
If anyone is interested in doing that, I will probably be on Tuesday, May 12, around 1005 UTC and again around 1632 UTC.
Steve Kristoff AI9IN EM79ji skristof@etczone.com
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Hi Bob!
I was not aware of this. Thanks! For me with just my TH-D72A, I'm still partial to the APRS messages. Then I have a copy of what I sent and received in the HT, without hoping that gateway stations have received all of the packets and forwarded them to ariss.net. The APRS status packets will be overwritten with successive packets received from the other station(s), although if I see what I want to see I can still call it a QSO.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Mon, May 11, 2015 at 9:56 PM, Robert Bruninga bruninga@usna.edu wrote:
If packet stations simply put a ">" as the first character of their packet then they instantly become "APRS Sttus" messages and will show on the front panel of ALL APRS radios and handhelds.
Without that, the packet is undefined and not displayed as being non-APRS. So packet stations desiring to be seen by most of the others on ISS, should remember that if they want to be seen by others begin with a">".
Bob, WB4APR
participants (2)
-
Patrick STODDARD (WD9EWK/VA7EWK) -
Robert Bruninga