Hi Doug,
Here is the best article on the subject with an explanation
of why and what to do:
http://www.amsat.org/amsat/features/one_true_rule.html
Welcome to satellites!
73,
Tony AA2TX
AMSAT, VP Engineering
---
- Original Message -
From: Douglas Phelps
Hi Satelliters,
Might cause some flames with this but here goes:
With a good few years of operating on the SSB sats, AO's-10,13,40, RS10,
FO-20,FO-29 and 98 countries confirmed I can agree totally with the one true
rule in theory. When stations at each end of the QSO use the method it works
Hi Ted,
Here is one to bookmark:
http://www.amsat.org/amsat-new/echo/CTNews.php
When we're able to turn it on, you can work it using:
145.880 FM up, no tone
435.150 FM down
73,
Mark N8MH
At 05:01 PM 6/8/2011 -0700, Ted wrote:
I may have missed the latest memo as I did not hear the last
A rookie observation….
That article was written in 1994 —well prior to the state of the art in full
doppler correction. I use MacDoppler for adjusting the VFOs and it happily
adjusts both of them. The ONLY time I run into a problem where the received
station is moving is when it is clear
It's certainly the case that many people operate out in the field and do not
have a computer available.
My radios are not computer controlled, even in the shack.
On 09-Jun-11 11:08, Tom Schaefer, NY4I wrote:
Is the state of the art still such that we are all using radios that do not
support
Certainly desirable Tom, but I've been in Amsat and on the birds since the
'70s and it wasn't until the last couple of years that I got my PC hooked
to my FT-736R! And then just this year to get it hooked to my FT-817 (IF)
radio.
I will say that there's nothing better than PC doppler and rotator
Hello all it is time again for the HVSCG Net tonight June 09 @ 8 PM edt.on
Echolink N2EYH-L node 429079. Hope you will join us for the net and share
your satellite knowledge. Hope to hear you there. 73 Gary wa2aqh
___
Sent via AMSAT-BB@amsat.org.
APRS Balloon launch today from California Bay area!
On Thursday 9 June we will be doing a high-altitude balloon
launch of our prototype Phonesat spacecraft It will have
a separate APRS VHF beacon, but what we're really interested
is collecting the data from the satellite's UHF beacon.
I always varied the transmit.
This way the person I'm talking to as well as any other listeners are
all on the same freq listening.
Growing up on the birds when you had to twist the BIG knob to keep
everyone on freq is not not a big deal. And to this day i still don't
know why it seems to be
Video of Astronaut Doug Wheelock KF5BOC at Dayton
http://www.southgatearc.org/news/june2011/kf5boc_video.htm
A report on Tuesdays ISS contact with students in Enniskillen can be seen at
http://www.southgatearc.org/news/june2011/college_congratulated.htm
It is understood there may be a BBC TV
I thought per FCC rulings that cell phone use in these balloon flights
is not legal?
Joe WB9SBD
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 6/9/2011 8:27 AM, Bob Bruninga wrote:
APRS Balloon launch today from California Bay area!
On Thursday 9 June we
OK my brain may be playing tricks, but if you vary only your transmit
frequency such that you always hear yourself on the same downlink
frequency, isn't it true that the other station may not necessarily be
hearing you on the same downlink frequency and is chasing you anyway?
Your doppler is
Where does it say there's a cellphone?
On 09-Jun-11 14:24, Joe wrote:
I thought per FCC rulings that cell phone use in these balloon flights
is not legal?
Joe WB9SBD
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 6/9/2011 8:27 AM, Bob Bruninga
Ok, Smartphone,
Me Bad, I thought this was just another group using a cellphone on a
balloon flight. Upon further reading I see they did take the data out of
the Phone and downlink it via Ham Radio Who's call I wonder?
But i guess i jumped the Gun
Sorry,
Joe WB9SBD
The Original Rolling
doppler effects both paths, up and down.
so at least if everyone is listening to a 100Hz freq tone at 100 Hz, we
are all on the same freq.
Joe WB9SBD
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 6/9/2011 9:35 AM, n...@lavabit.com wrote:
OK my brain may
Maybe this?
Also, here is an article on their previous flight:
http://www.foxnews.com/scitech/2011/02/11/cell-phones-space-smartphone-nasa/ 73,
Dave - KB1PVH
Sent from my Verizon Wireless DROID X
On Jun 9, 2011 10:59 AM, Nigel Gunn G8IFF/W8IFF ni...@ngunn.net wrote:
Where does it say there's a
The smartphone was just the computer and sensors. The communication was by UHF
radio.
On 09-Jun-11 15:09, Dave Webb KB1PVH wrote:
Maybe this?
Also, here is an article on their previous flight:
http://www.foxnews.com/scitech/2011/02/11/
cell-phones-space-smartphone-nasa/ 73,
Has anyone had success getting into VO52 using a vertical, omnidirectional
antenna on the uplink. I have a nice M2 2M9SSB for 2m but only have a
dualband J pole to cover UHF with and wonder if I could get into VO52 with
it for my uplink antenna.
73s John AA5JG
The 4kg nanosatellite STRaND-1 developed in the UK by University of Surrey and
Surrey Satellite Technology Limited (SSTL) will be flying a Smartphone, see
http://www.southgatearc.org/news/january2011/mobile_phone_in_orbit.htm
I recall they were hoping to launch by the end of the year.
The
At about the 17.5 minute portion of the current Ham Nation podcast (episode
THREE already!), Bob Heil teases the audience about our upcoming show
dedicated to working the amateur satellites! We're shooting for a Tuesday in
July date - stay tuned!
http://twit.tv/hn
Clint Bradford, K6LCS
I have had some success with vertical monobanders on all of the birds
including VO-52 and A0-7. I use a Ringo Ranger II on two meters and a
1/4 wave homebrew two meter groundplane for 70cm, which makes it 3 waves
long for 70cm. The main disadvantage I run into is that two different
antennas
Jerry's correct. If you only adjust your transmit frequency, such
that your receive frequency appears to stay the same -- then you're
automatically correcting for your own downlink doppler, but not for
anyone elses. Other hams in the footprint will still have to chase
you. The only way to stick
Hi!
That being said, adjusting the higher (UHF) transmit frequency on
VO-52 and AO-07 only (ie. manual control) will get you pretty close,
and you won't drift a whole lot. I hear plenty of hams doing this, as
long as there are just one or a two QSO's going on, they don't drift
into each
As I currently live in an antenna-restricted subdivision, I have been
experimenting with low-profile antennas for a couple of years now. My
experience has been that verticals are iffy for a couple of reasons: not
enough gain at low elevations when the path is longest, a deep null above 40
This is a great thread.
Well, I am going to continue with full doppler and just resolve myself to
tuning in some people that are not quite there yet. As a lot, I would think
adding computer control to handle full doppler would not be that big a deal
nowadays as most of the programs support it.
Balloon is up!
http://aprs.fi/KF7ODR-1
But their main interest is their UHF packet downlink on 437.092
-Original Message-
From: aprssig-boun...@tapr.org [mailto:aprssig-boun...@tapr.org] On Behalf
Of Bob Bruninga
Sent: Thursday, June 09, 2011 9:28 AM
To: amsat-bb@amsat.org
Cc: 'TAPR APRS
At 01:01 PM 6/9/2011, you wrote:
Actually, if stations would spread out a bit more on the transponders,
this would be even less of an issue.
There is so much space that goes
to waste on these transponders, when everyone seems to never go
more than a few kHz up or down from the center.
True.
Hello Guys
Now, I am able to confirm the contacts
using LotW also. Today, I uploaded my last Sat log.
Thanks very much
Hector, CO6CBF
EL92SD
***
Genius is one per cent inspiration,
and ninety-nine per cent
perspiration.
At 02:35 AM 6/10/2011, John Geiger wrote:
Has anyone had success getting into VO52 using a vertical, omnidirectional
antenna on the uplink. I have a nice M2 2M9SSB for 2m but only have a
dualband J pole to cover UHF with and wonder if I could get into VO52 with
it for my uplink antenna.
I have
At 04:06 AM 6/10/2011, Tom Schaefer, NY4I wrote:
This is a great thread.
Well, I am going to continue with full doppler and just resolve
myself to tuning in some people that are not quite there yet. As a
lot, I would think adding computer control to handle full doppler
would not be that big a
In the scheme of things, will AO-51 be in L/U voice mode anytime soon? If so
has those UP and Down link frequencies changed?
Thanks,
LOUIS, KD5GM in EL29kq
CW, The original digital mode
AMSAT #37061: FIST #3606
___
Sent via AMSAT-BB@amsat.org.
With the battery problems we can't use the L receiver. I don't expect to be
able to run L/U for a long time, if ever again.
73, Drew KO4MA
Sent from my iPhone
On Jun 9, 2011, at 6:44 PM, Louis House, KD5GM kd...@sbcglobal.net wrote:
In the scheme of things, will AO-51 be in L/U voice mode
That was the only place we could play with our L S stuff since AO-40
(sobsob).
73 Bob W7LRD
- Original Message -
From: Andrew Glasbrenner glasbren...@mindspring.com
To: Louis House, KD5GM kd...@sbcglobal.net
Cc: amsat-bb@amsat.org amsat-bb@amsat.org
Sent: Thursday, June 9, 2011
Balloon is up!
http://aprs.fi/KF7ODR-1
But their main interest is their UHF packet downlink on 437.092
My TM-D700 in Berkeley doesn't seem to go to lower step size than 5khz,
but I can sorta hear some squawking on 437.090 ... at least it's better
than 437.09375 ...
But, alas, my radio
Last path:KF7ODR-13W5VYP via WIDE1-1,WIDE2-1,qAR,KI6JJW-1
[http://aprs.fi/info/KI6JJW-1] (seriously-bad)
[http://d1dhsh1i77j8ju.cloudfront.net/img/path-seriously-bad.png]
This station appears to be flying at high altitude and using digipeaters, which
causes serious congestion in the APRS
So for the operator with a single FT-817ND - understanding there will be a
learning curve in regards to doppler, doing the Arrow wave entertaining
and/or frightening the neighbors, is AO-7 do-able or just not a really
good idea?
Won't be ticked off if the answer is probably best not to try.
You know here are some people trying to do an experiment of whatever kind,
probably spent alot of time and money on the project and I think that is great.
I was tracking it and was waiting for it to get above the Sierra's and try to
get the downlink. Would have been neat.
BUT here we have
You know here are some people trying to do an experiment of whatever kind,
probably spent alot of time and money on the project and I think that is great.
I was tracking it and was waiting for it to get above the Sierra's and try to
get the downlink. Would have been neat.
BUT here we have
I think the complaint you're referring to is an artifact of the APRS.FI
website not a particular person complaining.
Jeff Moore -- KE7ACY
CN94
- Original Message -
From: Kevin Deane summit...@live.com
To: amsat-bb@amsat.org
Sent: Thursday, June 09, 2011 6:53 PM
Subject: [amsat-bb]
snip
So for the operator with a single
FT-817ND - understanding there will be a
learning curve in regards to doppler, doing the Arrow
wave entertaining
and/or frightening the neighbors, is AO-7 do-able or just
not a really
good idea?
Won't be ticked off if the answer is probably
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