Date   

ISS APRS Digipath W/ Yaesu VX8R

kb1jfq <kb1jfq@...>
 

Hello all, I'm new to the group and was wondering if anyone has a VX-8 and used it for ISS APRS, what path do you use if you do? I had a good pass lastnight and picked up a few stations that were digipeated from it. Any information would be very helpful. 73 to all, Chuck KB1JFQ


W1AW

kc2lsd <kc2lsd@...>
 

Hello, I have a meeting at the ARRL tomorrow May 7th 2010. I plan on operating from W1AW if the satellite passes and time allow.


73!
Cody
Kc2Lsd


ISS APRS PACKET BACK UP TODAY. ON NOW

perryc <canoeman@...>
 

FIRST PASSES ON WEST COST TODAY AT 4 PM HOUR.
THEE ARE SOME REALLY GOOD PASSES COMING UP.
CHECK ISS FAN SITE FOR PASS INFO.
GET THOSE THF7 AND VX-8'S OUT AND WORK THE SPACE STATION.
KE6ANM


Re: LIVE - How to Manually Program Your FT-60R

Randy Schulze
 

Thanks for the correction!  Please reserve me a spot on May 11th.

Thanks!

Randy Schulze
KD0HKD
Kansas City, Missouri
rschulze@...


----- Original Message -----

From: K6LCS

Date: Wednesday, May 5, 2010 7:45 pm

Subject: [Work-Sat] Re: LIVE - How to Manually Program Your FT-60R

> Unless you're working in Hawaii! (grin)
>
> Clint
>
> --- In Work-Sat@..., Clint Bradford
> wrote:>
> > No, 5PM Pacific my time is 7PM your time!
>
>
>


Re: LIVE - How to Manually Program Your FT-60R

K6LCS <clintbrad4d@...>
 

Unless you're working in Hawaii! (grin)

Clint

--- In Work-Sat@yahoogroups.com, Clint Bradford <clintbrad4d@...> wrote:

No, 5PM Pacific my time is 7PM your time!


Re: LIVE - How to Manually Program Your FT-60R

Clint Bradford <clintbrad4d@...>
 

No, 5PM Pacific my time is 7PM your time!

Clint



On May 5, 2010, at 4:44 PM, rschulze@... wrote:



I'd love to join one of these sessions, but 5PM PDT is 3PM CDT, right in the middle of my afternoon at work.


Randy Schulze 
KD0HKD 
Kansas City, Missouri 
rschulze@...




Re: LIVE - How to Manually Program Your FT-60R

Randy Schulze
 

I'd love to join one of these sessions, but 5PM PDT is 3PM CDT, right in the middle of my afternoon at work.


Randy Schulze
KD0HKD
Kansas City, Missouri
rschulze@...


----- Original Message -----

From: K6LCS

Date: Wednesday, May 5, 2010 5:05 pm

Subject: [Work-Sat] LIVE - How to Manually Program Your FT-60R

> A free, online LIVE session is being offered to those who'd like
> to know how to
> manually programs their Yaesu FT-60R radios. Here are the next
> three dates/times
> ...
>
> Friday, May 7, 5PM PDT
> Monday, May 10, 5PM PDT
> Tuesday, May 11, 5PM PDT
>
> RSVP MANDATORY. I limit the sessions to five or six attendees each!
>
> Pre-session homework for you ...
>
> 1. DOWNLOAD THE FT-60R ONE-PAGE QUICK PROGRAMMING GUIDE - print it
> out and have
> it with you for the meeting: http://tinyurl.com/ft60-prog
>
> 2. SEND ME PRIVATE EMAIL FOR THE SESSION PASSWORD: clint@...
>
> 3. Log on to the session!
>
> I am using Citrix' GoToMeeting. This presentation is absolutely
> FREE of any
> charges on your end. But I have password-protected the session, to
> limit the
> audience to five or six at a time.
>
> YOU MUST SEND ME EMAIL TO OBTAIN THE SESSION PASSWORD AND URL TO JOIN!
>
> When you log on, you will be connected to audio using your
> computer's microphone
> and speakers (VoIP). A headset is recommended. If you do not have
> a microphone
> on your
> system, a live text "chat box" will be available and seen by all.
>
> There is NO CHARGE to enter a presentation at GoToMeeting. They
> will NOT ask you
> for any credit card info.
>
> If you are brand new to your FT-60R - or even if you've owned one
> for a while -
> you'll be adept at manually programming a channel after
> participating in this
> program!
>
> We'll schedule more sessions for later dates ... and various times
> of day ... to
> accommodate as many FT-60 owners as possible.
>
> Clint Bradford, K6LCS
> 909-241-7666 - cell
>
> P.S. - We will NOT be programming "split frequencies" for working
> the FM satellites. This session is just intended to get folks
> acquainted with their new radios.
>
>


LIVE - How to Manually Program Your FT-60R

K6LCS <clintbrad4d@...>
 

A free, online LIVE session is being offered to those who'd like to know how to
manually programs their Yaesu FT-60R radios. Here are the next three dates/times
...

Friday, May 7, 5PM PDT
Monday, May 10, 5PM PDT
Tuesday, May 11, 5PM PDT

RSVP MANDATORY. I limit the sessions to five or six attendees each!

Pre-session homework for you ...

1. DOWNLOAD THE FT-60R ONE-PAGE QUICK PROGRAMMING GUIDE - print it out and have
it with you for the meeting: http://tinyurl.com/ft60-prog

2. SEND ME PRIVATE EMAIL FOR THE SESSION PASSWORD: clint@...

3. Log on to the session!

I am using Citrix' GoToMeeting. This presentation is absolutely FREE of any
charges on your end. But I have password-protected the session, to limit the
audience to five or six at a time.

YOU MUST SEND ME EMAIL TO OBTAIN THE SESSION PASSWORD AND URL TO JOIN!

When you log on, you will be connected to audio using your computer's microphone
and speakers (VoIP). A headset is recommended. If you do not have a microphone
on your
system, a live text "chat box" will be available and seen by all.

There is NO CHARGE to enter a presentation at GoToMeeting. They will NOT ask you
for any credit card info.

If you are brand new to your FT-60R - or even if you've owned one for a while -
you'll be adept at manually programming a channel after participating in this
program!

We'll schedule more sessions for later dates ... and various times of day ... to
accommodate as many FT-60 owners as possible.

Clint Bradford, K6LCS
909-241-7666 - cell

P.S. - We will NOT be programming "split frequencies" for working the FM satellites. This session is just intended to get folks acquainted with their new radios.


AO-51 Power Management

K6LCS <clintbrad4d@...>
 

From Monday ...

This evening I enabled the power management software on AO-51. If
everything works right, the repeater should run at 1.01 watt while in
sun, and 290 milliwatt while in eclipse and after exiting eclipse until
the batteries recover to ~7.9 volts. Observations from the southern
hemisphere while entering and leaving eclipse would be very helpful...we
know it is getting used from the WOD files. I'll post a map where the
satellite is being used soon.

73, Drew KO4MA


Build a Fabric, Collapsible Yagi

K6LCS <clintbrad4d@...>
 

Great project at ...

http://tinyurl.com/fabric-yagi

Clint


Re: FO-29, AO-7, HO-68 SSB

K6LCS <clintbrad4d@...>
 

... or use a diplexer but I'm not sure the diplexer would protect my receiver from front end damage to the vr-500 while transmitting ...
That is a primary purpose of a diplexer!

... FO-29 is pretty quiet ...
JARL announced the status of FO-29 on Jan 29th at JARL WEB in Japanese.
This is English translation.

-------------------------------------------
The present conditions (January 29, 2010) of FUJI3 (FO-29)

FUJI3(FO-29) has been stopped the continuous operation and moved to
planed schedule operation because it can not have enough battery charge
current from beginning of November.

The command of JTA (an analog transponder) ON has been sent for a
confirmation examination from the control station at 11:33 on January
27th(UTC). JH1EKH/1, JR8LWY, VK5HI have reported to us that "FO-29
still works." There is a possibility that FO-29 has been working
consecutively after we sent transponder ON command on January 27.

It is thought that the electricity income and expenditure is improved by
the decrease of the shade rate, and the transponder is working
continuously. If someone has information of telemetry or other working
status related from January 27th 11:30(UTC) to 28th 19:20(UTC), Please
send it to JARL technical section.

In addition, when FO-29 battery power is lower than setting value, a
transmitter becomes OFF automatically by UVC. If you find the
transponder is getting off, please send the information of transponder
off time and date to JARL technical section.

Please use FO-29 without restriction but use proper uplink power.
------------------------------------------------

Thanks JARL command team.

Yutaka Murata JA1COU


A couple other FO-29 resources ...

http://www.ne.jp/asahi/hamradio/je9pel/fo29sola.htm

http://www.dk3wn.info/p/?p=13368


... My other choice is the FT-817nd ...
I wouldn't want you to spend that type of money just for FO-29, since it has been up there almost 15 years, and may be deteriorating.

I bought my FT-817ND about five years ago. It is a great rig. There are a lot of comme ts on the '817 on the Internet. A great portion of the "negatives" fall into general categories such as "not the original owner, and having problems" and "cannot read an instruction manual" and "I have no clue what an antenna is, and I think I have blown my finals."

In my little over two years working for the busiest location of Ham Radio Outlet - with the U.S. sales rep's wife as my boss (mentioned only because we heard a lot of Yaesu info first, and had instant access to whatever I needed from Yaesu), I never handled a true case of "blown finals" on a customer's radio. And I cruised eHam and QRZ looking for cases of "original owner, knows what he's doing, and radio finals blow up" - and have yet to find one. So read the "negative" reviews, but know that in most of them, a LOT of info is "missing."

ANYWAY, I have used my FT-817ND with several antennas - but mainly for FM voice work. You probably already saw my lunchbox setup at ...

http://tinyurl.com/lunchbox-radio

HRO, GigaParts and AES each have the unit new at $579.95 - including a $20 Yaesu promo. Universal Radio is a tad higher.

Clint
909-241-7666


Eclipse - definition

K6LCS <clintbrad4d@...>
 

Eclipse means for a satellite to enter into shadow of the earth. Orbiting
satellite enters into shadow of the earth once every rotation, and a ratio of
shadowing duration to one rotating period is called "eclipse ratio". When an
orbit plane of satellite gets perpendicular to the direction toward the sun,
eclipse ratio becomes zero.

Clint


Re: AO-51 Status

K6LCS <clintbrad4d@...>
 

... What is meant by a period of eclipses that will reach almost 20 minutes by July?
Answer provided by

The eclipse period depends upon the orbit of the satellite ... The ablity
to charge the batteries depends upon the surface area of the
satellite that has solar cells, how efficient the solar cells are, the
length of time the solar cells are exposed to sunlight and the angle of the
sun on the solar cells.

With AO-51 we can set the TX output power level for both transmitters. In
my role of managing the satellite I am constantly monitoring the total power
consumption of the satellite and making sure that the satellite batteries
will sustain that power level during each eclipse period. The batteries are
recharged each time the satellite is in the sun. Determining the TX power
levels and what modules are on at any particular time and factoring in the
eclipse time and sun time plus sun angle are all part of managing the
satellite and part of being a command station.
Some smaller satellites may not have space to add the additional control
circuitry, it is a trade off.

AO-51 has gone from periods of nearly half an hour of eclipse each orbit to
no eclipse period over the last 3.5 years.

Essentially it goes back to the basic design of the satellite. Knowing the
basic orbit the satellite will be in, how much surface area is needed to
support X amount of TX power during Y long eclipse periods. Then designing
a battery charger/regulator to support this and provide the ability to alter
whatever is needed to maintain an operational satellite.

If you interested in the actual systems AMSAT offers a book on AO-51 with
descriptions of all the hardware systems and specifications.

73,
Gould, WA4SXM
AO-51 Command Station



... Downlink power may range from 2 watts in illumination, to maybe as low as 300 milliwatts in eclipse ...

Just that the Downlink transmitter may be as high as 2W when the sat is in the sun, and down to 300mW when in shadow.

Clint


Re: AO-51 Status

kc2lsd <kc2lsd@...>
 

As most of you know I'm new at this. What is meant by:
a period of eclipses that will reach almost 20
minutes by July?
and

Downlink power may range from 2 watts in
illumination, to maybe as low as 300 milliwatts in eclipse.
Thanks all
Cody Kc2Lsd

--- In Work-Sat@yahoogroups.com, "K6LCS" <clintbrad4d@...> wrote:

AO-51 has now reentered a period of eclipses that will reach almost 20
minutes by July. Since we've been in an extended period of continuous
illumination and very warm spacecraft temperatures, the next few weeks
will be spent determining what the batteries capacities are now.
Currently we are running 1.01 watt on 435.300 only, with the new PL mode
on. For this summer eclipse season, we are fortunate that the eclipsed
periods are while AO-51 is over mostly unoccupied Antarctica and
surrounding areas. This means when the batteries alone are supporting
the transmitter, there are not likely to be any users.

We have a downlink power management routine that we'll be implementing
over the next week or so. Downlink power may range from 2 watts in
illumination, to maybe as low as 300 milliwatts in eclipse. Using this,
combined with the PL, should mean we can protect the batteries from
over-discharge, while still providing the strongest possible downlink.

I'd like to encourage everyone to use the excellent reporting resource
at http://oscar.dcarr.org/ . I check this page at least 4 times a day to
check the status of AO-51. If the eclipse periods get too long faster
than we can adjust, the repeater may shut off due to a low battery
voltage watchdog. If this happens, please email me directly at
ko4ma@..., or for those that have my cell phone number already,
please feel free to text me a warning that the satellite repeater is off.

Additionally, the AO51-modes group would like your input on the desired
Field Day mode. We will likely be limited to one transmitter operation.
With AO-27, SO-50, and possibly SO-67 and HO-68 on V/U FM, S band or L/U
operation is looking very promising to provide some variety.

73,
Drew KO4MA
AMSAT-NA VP Operations


FO-29, AO-7, HO-68 SSB

John KC9OJV
 

Hi,
Recently I've set my sights on trying the SSB versions of our beloved satellites. I purchased a vr-500 receiver and hooked it up to my Elk log periodic handheld antenna. I've been moderately successful making recordings of operators using SSB on those birds. The audio isn't as good on the VR-500 as my FT-60 so I bought a battery operated mono amp from RS and that helps a lot. I'm thinking that I'll need another antenna so I can have dedicated transmit and receive ie. full duplex or use a diplexer but I'm not sure the diplexer would protect my receiver from front end damage to the vr-500 while transmitting. I also think I may need a preamp to boost the signal from the sats- HO-68 boomed in last night but FO-29 is pretty quiet. Finally I wondering which way to jump on a transmitter/transceiver. I've actually considered the MFJ-9402 and a compact, easy to power unit- obviously I couldn't use the birds that require 70cm up. My other choice is the FT-817nd. Slightly lower power but much more versatile for almost anything I'd care to do. Thoughts?
John
KC9OJV


AO-51 Status

K6LCS <clintbrad4d@...>
 

AO-51 has now reentered a period of eclipses that will reach almost 20
minutes by July. Since we've been in an extended period of continuous
illumination and very warm spacecraft temperatures, the next few weeks
will be spent determining what the batteries capacities are now.
Currently we are running 1.01 watt on 435.300 only, with the new PL mode
on. For this summer eclipse season, we are fortunate that the eclipsed
periods are while AO-51 is over mostly unoccupied Antarctica and
surrounding areas. This means when the batteries alone are supporting
the transmitter, there are not likely to be any users.

We have a downlink power management routine that we'll be implementing
over the next week or so. Downlink power may range from 2 watts in
illumination, to maybe as low as 300 milliwatts in eclipse. Using this,
combined with the PL, should mean we can protect the batteries from
over-discharge, while still providing the strongest possible downlink.

I'd like to encourage everyone to use the excellent reporting resource
at http://oscar.dcarr.org/ . I check this page at least 4 times a day to
check the status of AO-51. If the eclipse periods get too long faster
than we can adjust, the repeater may shut off due to a low battery
voltage watchdog. If this happens, please email me directly at
ko4ma@amsat.org, or for those that have my cell phone number already,
please feel free to text me a warning that the satellite repeater is off.

Additionally, the AO51-modes group would like your input on the desired
Field Day mode. We will likely be limited to one transmitter operation.
With AO-27, SO-50, and possibly SO-67 and HO-68 on V/U FM, S band or L/U
operation is looking very promising to provide some variety.

73,
Drew KO4MA
AMSAT-NA VP Operations


Re: international space staion on the air with APRS

perryc <canoeman@...>
 

ariss turned off aprs after school contact yesterday.

--- In Work-Sat@yahoogroups.com, "perryc" <canoeman@...> wrote:

the International Space Station has been active for the last few days.
145.825 simplex running APRS
The call sign being used is rs01ss-4 that's a zero after rs.
It's a russian call sign.
I think the Russian ham on board now has activated the aprs digi-peater.
check out passes on line.
definitely hear-abled workable with a hand held and arrow antenna.
Ham radio is cool!!!!!!!!


From the In-box ...

K6LCS <clintbrad4d@...>
 

A friend just sent me a message ...

... Some home brew antenna plans will be more than welcome ...
I have the Tape Measure Yagi and the Umbrela project on my Antennas page. As well as the AMSAT "Quick & Easy" Yagi articles!

... a schematic diagram of a r.f. receiving amplifier ...
What for??? (grin) Yes - that is a great idea for an article. But it is beyond what I am trying to accomplish with the work-sat.com Web site: Getting fellow hams to realize that they probably already own the necessary equipment to work the FM ham satellites - just improve the antenna a little, and get on the birds!

Clint, K6LCS
909-241-7666


international space staion on the air with APRS

perryc <canoeman@...>
 

the International Space Station has been active for the last few days.
145.825 simplex running APRS
The call sign being used is rs01ss-4 that's a zero after rs.
It's a russian call sign.
I think the Russian ham on board now has activated the aprs digi-peater.
check out passes on line.
definitely hear-abled workable with a hand held and arrow antenna.
Ham radio is cool!!!!!!!!


Re: Balloon Experiment Saturday Morning

K6LCS <clintbrad4d@...>
 

... 400 miles away ... 90,000 feet ... 2.5 degrees above the horizon ...
Darn - I didn't realize there was that much curvature of the Earth ...

Clint

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