I have an old Yaesu G-500A elevation rotator and a refurbished Yaesu
G-1000 DXA azimuth rotator that I'd like to use with a G-5500 controller.
I suspect the controller will work with the G-500A right out of the box,
but I don't know about the G-1000 DXA.
I have been out of the SAT new station construction for a while. I use a Uni_Trac on my station at home and have been for over 6 years.
Now I am building a station for someone else. I need to control a g5400b.
Is the LVB SatTracker from the Amsat store the way to go? Then use Sat32 to control the radio and the LVB?
Any other ideas would be good, but this is for beginners and needs to be simple to put together and use. So, prefer not to use the Adrino solution.
Yes, I sometimes go on the DD1US sounds from space page also, it has almost
every satellite you can think of on there. Including UO-11 and UO-9'S
digitalkers http://www.dd1us.de/spacesounds%202b.html .
Hi folks, I now have the satpc32 again controlling my TS790. I purchased a new usb/serial cable from the U.K. downloaded the drivers and it works fine. This cable is almost half the price of the other one which stopped working. It only cost 16., Tried it on Fo-29 and it does the job hi hi. 73 de Scott VE6ITV
I'm trying to setup a remote sat station and need help with a desence
filter. I was using a Diamond MX72-n and was experiencing water intrusion.
I then checked the archives and consulted the group and went to the
recommended Comet CF-416. Guess what, I'm still getting water into the
duplexer. I thought that it was more suited to outdoor service on the
recommendation of the group. So, before I take apart one of the duplexers to
attempt to waterproof, does anyone know of a duplexer that is designed for
outdoor use on the tower? I really don't have the room for a 12 foot +
crossboom, so I need to resolve the desence with the duplexer. Any
suggestions from someone who has solved this?
73 Jeff kb2m
> Resist any temptation to seal up every crack and crevice of the diplexer.
> be sure to leave a weep hole or a small gap perhaps where your cables come in through the bottom so moisture can escape.
Cannot agree with the above enough... You NEVER want to try and seal it up completely; mostly because you can't. (the block of epoxy being the exception) Warm day, heat beating down on it, cool rain comes, case temperature drops quickly, air inside will condense and suck a hole in your weather seal. Now you have moist air trapped inside... no weep holes. It's the same reason you never seal both ends of hollow feedline.
Are you thinking of using preamps? Then I want to suggest you try TWO diplexers... one on each feedline before the preamps. The 'unused port' on each can be capped with a simple antenna connector and a 50 ohm 1/4 watt resistor across it. Now, need room for all that? How about a tactical gear case...
I've found the black cases from MCM electronics (~$25) and antenna brackets at the hardware store (~$5):
It's just a suggestion... your mileage may vary, batteries not included, attempt at your own risk. =^)
73, Kevin N4UFO
Don't know who 'in the world' (<-- pun!) would have suggested such a crazy thing, but very great news, Bruce!
I sure would have liked to have been the first to submit an LotW app, but I just got #85 confirmed towards the Century award (thanks YV5FRD!) and still have a few more to go. =^)
73 and here's hoping your application inbox gets filled!!! =^D
AMSAT will now accept LOTW contacts for all of their awards.
We had been trying to figure out a way to do this and it was actually
quite simple as suggested by one of our members.
Log into your LOTW account, click on "Your QSOs". Select the station you
want to include for your AMSAT award. Click on "Details". Use a screen
capture program or Windows Snipping tool and attach that screen shot.
The information displayed contains both callsigns, the DXCC entity, the
Grid Square, the time/date and mode for the contact. Everything we need
for the contact to be accepted.
This will make it easier for everyone to submit for AMSAT awards as they
do not also have to get a hard copy QSL card for their LOTW contacts.
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
Did DOVE OSCAR-17 ever say anything other than the “Hi, this is Dove in
Space” as recorded here:
That’s from a fantastic page I just found that has sounds from many
I’d like to put ananniversary copy of its best known announcement on QIKCOM
I remember copying its telelmetry all the time, but I just don’t remember
*From:* Robert Bruninga [mailto:[email protected]]
*Sent:* Sunday, July 26, 2015 4:12 PM
*To:* amsat bb
*Cc:* Robert Bruninga
*Subject:* Re: QIKCOM-2 SPoken Messages
AMSAT Armchair "contact" lawyers:
Continuing with the DTMF message ideas. What kind of exchange "counts" for
satellite contacts? (where counting matters)? Does it really have to be
CQ... QSL... and then QSL ...?
For the DTMF Voice system, we could have two more messages:
" CQ Satellite, my number is *" (the satellite assigns the digit *)
" QSL number _, my number is *" (station enters the _ in his reply)
Usage would be:
A station sends a DTMF uplink message "WB4APR says CQ Satellite my number
A responding station sends "W3ADO says QSL number X, my number is Y"
Finishing it off with "WB4APR says QSL number Y, my number is X.
Another station joins in "W4XYZ says QSL number X, my number is Z
and the reply could be "WB4APR says QSL Number Z, my number is X...
WB4APR made two valid contacts with XYZ and ADO.
In otherwords is that required for an exchange? The number for "My number
is *." is assigned sequencially for the pass, so that it is unique. The
QSL station always has to enter the number of the matching station to which
he is responding.
Just a thought. Or does anyone give a hoot about counting satellite
On Sun, Jul 26, 2015 at 2:02 PM, Robert Bruninga <bruninga(a)usna.edu> wrote:
In addition to all of the numbered ARL messages, we have now implemented all
of these additional messages (as adjusted to fit) and found it was trivial
to include a "0-9" modifier in messages... wherever a " _" appears. There
is still some room.
Remember, for the sender using DTMF the message and callsign always fits
into 16 digits from the DTMF keypad. The format is:
Where e is an emergency flag which, along with x, must be 9 if this is a
true emergency message otherwise it says "TEST ... "
Where MM is the message number (00 to 99)
Where x is a numeric modifier for messages with a "_" in them.
Where CCCCCC is the callsign in DTMF and pppp is the key position codes for
the 6 letters
Here are the new ones implemented.
W2JV suggested: “Greetings from AMSAT. Keeping ham radio in space over 44
There is no cell service here.
Cell battery is dead.
Cell power charging is limited.
Radio power charging is limited.
Next contact time available in 90 minutes. (time of one full orbit)
Next contact time is tomorrow.
Contact me on _ Meter band. (interpret as 1=160, 2=2m, 3=30, 8=80, etc)
Demonstrating APRStt at Hamfest
Demonstrating APRStt to friends
I am on schedule.
I may be delayed _ hours
I may be delayed _ days
I may be early _ hours
I May be early _ days
I may quit early _ stops
I may go farther _ stops
We are camping and enjoying it greatly.
We are hiking and enjoying it greatly.
Call me on my cell.
Call my cell on the hour.
Please Send items number _. (1=Money,2= food, water, supplies, shoes,
sleeping bag, blanket,fuel)
We are operating on emergency power.
We are operating on solar power.
On Wed, Jul 22, 2015 at 11:11 PM, Robert Bruninga <bruninga(a)usna.edu> wrote:
Inviting proposed standard messages for the next APRS Satellite:
Our next QIKCOM-2 APRS satellite will accept 2 digit uplink DTMF messages to
be spoken on the downlink. We have already programmed all of the ARRL
standard radio grams and emergency messages.
But there is room for more. So think.... What kind of message would you
want to send (that is not included in the existing ones) from your HT out in
the wilderness. At a hamfest? or any other HAM Radio event or opportunity.
Keep them simple and of the same order of length as the existing ones.
The existing ones are listed here:
But the implementation cannot include blanks for fill-in like the regular
ones. But any sentence that stands alone can work.
Just thought I'd open it up. Plenty of RAM and only 1 week before
Serious considerations only. Thanks
I recommend taking some lessons from other gear that’s packaged for outdoor use. Like many outdoor preamps. Have a look at picture of these and you’ll see what I am getting at.
Moisture comes from 2 places. From precipitation and from the air (condensation). I’ve use the following with great success.
First the precipitation. Cover it like a “hat”. I use a piece of wide PVC or drainage pipe, though a plastic project box will do as well. I seal the top with a cap and leave the bottom open. All cables and connectors must come from the bottom for zero chance of water tricking in through a cable hole on the top or side or through the connectors. Also seal the connectors using some of the new vinyl coax wrap (love this stuff), electrical tape, or coax seal (though the latter can be a bear to cleanly remove later). What you're basically doing is affixing a “bucket” over the top of your diplexer.
Now for condensation. Resist any temptation to seal up every crack and crevice of the diplexer. As long as there is any air inside, you will eventually get condensation due to temp and humidity changes. And it needs a way to get out when that happens. If you cover the bottom of your PVC pipe be sure to leave a weep hole or a small gap perhaps where your cables come in through the bottom so moisture can escape. The only perfect way around the condensation is to have no air at all inside the diplexer housing. Some companies use this approach for outdoor matchboxes and baluns where the whole thing is embedded in a block of epoxy. But before you try taking yours apart and using filler, epoxy, or silicone sealer to fill it up, let me tell you I’ve tried it and my diplexer just didn’t work well afterwards. I suffered added losses and and increased SWR. Perhaps gear just has to be designed for that from the ground up.
Hope that helps.
On Mon, Jul 27, 2015 at 8:38 PM, <kb2m(a)arrl.net> wrote:
> I'm trying to setup a remote sat station and need help with a desence
> filter. I was using a Diamond MX72-n and was experiencing water intrusion.
> I then checked the archives and consulted the group and went to the
> recommended Comet CF-416. Guess what, I'm still getting water into the
> duplexer. I thought that it was more suited to outdoor service on the
> recommendation of the group. So, before I take apart one of the duplexers to
> attempt to waterproof, does anyone know of a duplexer that is designed for
> outdoor use on the tower? I really don't have the room for a 12 foot +
> crossboom, so I need to resolve the desence with the duplexer. Any
> suggestions from someone who has solved this?
> 73 Jeff kb2m
It did not take long after the announcement that AMSAT would accept ARRL
LOTW entries for Fraser, W3UTD, to submit 100% LOTW entries for the
AMSAT Satellite Communication Achievement Award as well as the South
Africa Satellite Communitcation Achievement Award. There have been
several others that have included LOTW entries over the past few weeks
while I was testing the idea.
Next week, I will post more of the awards earned since my last post the
other day, including Fraser's submission.
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
Also live streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes
Latest satellite news on the ARRL Audio News
AMSAT on Twitter http://www.twitter.com/amsat