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CX2SA > SATDIG 19.02.11 18:56l 847 Lines 27576 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Linear vs. switching and HV DC (Dee)
2. Re: Linear vs. switching and HV DC (Edward R. Cole)
3. Re: Using Predict with a dynamic qth file (Charles Suprin)
4. Re: Linear vs. switching and HV DC (Vince Fiscus, KB7ADL)
5. Office Closed (Martha)
6. Re: Yaesu 847 power supply -linear vs. switching
(tosca005@xxx.xxxx
7. WD9EWK on FO29 @ 2331 UTC today (Patrick STODDARD)
8. Re: Linear vs. switching and HV DC (Edward R. Cole)
9. Arrisat-1 (Kevin Deane)
10. ND9M/MM - AO7 Ops from RL89 (Clary, James T, Civilian)
11. Re: Arrisat-1 (Alan P. Biddle)
12. flex & satpc32 (Nick Pugh K5QXJ)
13. Mode A (Joe)
14. Yuma AZ hamfest, day 2 (Patrick STODDARD)
15. Re: flex & satpc32 (Alan P. Biddle)
16. Re: Mode A (Andrew Glasbrenner)
17. Re: Mode A (Bob- W7LRD)
----------------------------------------------------------------------
Message: 1
Date: Fri, 18 Feb 2011 15:17:32 -0500
From: Dee <morsesat@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Linear vs. switching and HV DC
To: "'Bob Bruninga'" <bruninga@xxxx.xxx>, "'Nigel Gunn G8IFF/W8IFF'"
<nigel@xxxxx.xxx>, "'zach hillerson'" <qstick333@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <5C9C1C8B789B42A5B58F7876E45384DD@xxxxxxxx>
Content-Type: text/plain; charset=us-ascii
Only thing I have to say is that Switching types are much lighter and are
more transportable. I have owned big bruiser linears and they work OK-just
find a sturdy shelf to put them on. If your requirement is 25Amps, get a
35Amp unit.(switching) Best to run cooler than at "load."
Good luck on the article Bob.
73,
Dee, NB2F
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Bob Bruninga
Sent: Friday, February 18, 2011 2:55 PM
To: 'Nigel Gunn G8IFF/W8IFF'; 'zach hillerson'
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Linear vs. switching and HV DC
> Is there a Amsat BB favorite between switching and linear [power
supplies]?
I won't speak to noise, which is the only potential issue with switching
power supplies, but other than that, I am writing an article for QST that
points out how the world of power and emergency power has changed
drastically over the last decades. Entirely due to switching power supplies
and regulators:
PROS:
1) A 90% reduction in size and weight
2) Laptop supplies that can supply 12v at 5 to 10 amps
3) Universal inputs 115V to 240V AC
4) * also run on 150 to 330 VDC
5) Hybrids and Electric Vehicles have Kilowatts of 150 to 330 VDC available
6) Home grid-tie solar has Kilowatts of high voltage DC available
7) 12VDC to 120VAC inverters are now sine and modified sine at 90%+
efficiency
8) * These internally run on 200 VDC or so. Easy to run great distances on
small wire if you run them directly on HV DC derived from your Hybrid or
Solar.
CONS: with today's litigious society and general ignorance (compared to the
vacuum tube days when even cub-scouts built 2 tube radios with High
Voltage), it is doubtful that QST will publish the article. They have
rejected it before, but I keep whittling away at the details.
Bottom line, is that high efficiency high voltage DC is everywhere and
because everything runs on switching power supplies that run internally on
HV DC and regulators that accept a wide range of input, then HV DC could be
the new universal power source.
Problem is, Hybrid and EV MFR's are not going to provide access to HV DC
willingly due to safety an liability issues. Same for Solar installers....
Same for QST.
But you can get some of what I am writing about on this page:
http://aprs.org/FD-Prius-Power.html
http://aprs.org/alternative-energy.html
For example, buried in a Camry Hybrid is a nice compact stand-alone 14 volt
100 AMP DC/DC supply. Input can be 200 to 350 volts DC (which you can get
from 120V or 240VAC with just some diodes).. Problem is, it is bolted to
the $1000 salvage battery and the salvage guys won't sell it separately.
The Prius 100amp 14v supply is integrated into the huge drivetrain inverter
and inseparable from that $3000 unit (salvage cost).
As we electrify transportation and anyone with good sun goes solar, HV DC
will be something Hams will be getting used to again.
Bob, Wb4APR
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Fri, 18 Feb 2011 12:01:53 -0900
From: "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Linear vs. switching and HV DC
To: "Bob Bruninga" <bruninga@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <201102182101.p1IL1rsa009977@xxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 10:54 AM 2/18/2011, Bob Bruninga wrote:
> > Is there a Amsat BB favorite between switching and linear [power
>supplies]?
>
>I won't speak to noise, which is the only potential issue with switching
>power supplies, but other than that, I am writing an article for QST that
>points out how the world of power and emergency power has changed
>drastically over the last decades. Entirely due to switching power supplies
>and regulators:
>
>PROS:
>1) A 90% reduction in size and weight
>2) Laptop supplies that can supply 12v at 5 to 10 amps
>3) Universal inputs 115V to 240V AC
>4) * also run on 150 to 330 VDC
>5) Hybrids and Electric Vehicles have Kilowatts of 150 to 330 VDC available
>6) Home grid-tie solar has Kilowatts of high voltage DC available
>7) 12VDC to 120VAC inverters are now sine and modified sine at 90%+
>efficiency
>8) * These internally run on 200 VDC or so. Easy to run great distances on
>small wire if you run them directly on HV DC derived from your Hybrid or
>Solar.
>
>CONS: with today's litigious society and general ignorance (compared to the
>vacuum tube days when even cub-scouts built 2 tube radios with High
>Voltage), it is doubtful that QST will publish the article. They have
>rejected it before, but I keep whittling away at the details.
>
>Bottom line, is that high efficiency high voltage DC is everywhere and
>because everything runs on switching power supplies that run internally on
>HV DC and regulators that accept a wide range of input, then HV DC could be
>the new universal power source.
>
>Problem is, Hybrid and EV MFR's are not going to provide access to HV DC
>willingly due to safety an liability issues. Same for Solar installers....
>Same for QST.
>
>But you can get some of what I am writing about on this page:
>http://aprs.org/FD-Prius-Power.html
>http://aprs.org/alternative-energy.html
>
>For example, buried in a Camry Hybrid is a nice compact stand-alone 14 volt
>100 AMP DC/DC supply. Input can be 200 to 350 volts DC (which you can get
>from 120V or 240VAC with just some diodes).. Problem is, it is bolted to
>the $1000 salvage battery and the salvage guys won't sell it separately.
>
>The Prius 100amp 14v supply is integrated into the huge drivetrain inverter
>and inseparable from that $3000 unit (salvage cost).
>
>As we electrify transportation and anyone with good sun goes solar, HV DC
>will be something Hams will be getting used to again.
>
>Bob, Wb4APR
>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
I am rebuilding my 4.2kV PS for the 2m-8877. Does that qualify? QST
still publishes high-power tube amplifier designs in their
handbook. What's 150-250v amongst friends? Of course HV DC can
badly burn or Kill you.
I was 14 years old when working on my DX-35 with 850vdc on the 6146 plate.
I agree that many hams these days aren't not trained to handle
high-voltage with all the 12vdc solid-state electronics
available. But QRO sspa are running at 50vdc and higher. There are
rules for safe work on HV...time to review them.
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 144-1.4kw*, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
*temp not in service
------------------------------
Message: 3
Date: Fri, 18 Feb 2011 16:23:13 -0500
From: Charles Suprin <hamaa1vs@xxxxx.xxx>
Subject: [amsat-bb] Re: Using Predict with a dynamic qth file
To: Bobby Lacey <amsat@xxxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<AANLkTimuz=6bYYg3LGd8ZvNYaWu7nGRuH4VQ_6NUys1E@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Howdy,
I do not recall predict having that capability. If they do, it would be
great to see how they handle doppler of a moving qth. In gpredict we are
adding gpsd support and would like the example.
Charles
AA1VS
On Feb 18, 2011 12:47 PM, "Bobby Lacey" <amsat@xxxxxxxxxxx.xxx> wrote:
> Hi,
>
> Is it possible to dynamically change predict's qth file from a socket
> connection? Looking to develop a small web app that gives updates on pass
> times depending on your current geolocation.
>
> 73
> Bobby KF4GTA
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4
Date: Fri, 18 Feb 2011 14:26:22 -0700
From: "Vince Fiscus, KB7ADL" <vlfiscus@xxx.xxx>
Subject: [amsat-bb] Re: Linear vs. switching and HV DC
To: amsat-bb@xxxxx.xxx
Message-ID: <5.2.1.1.2.20110218141309.00bf94a8@xxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 12:01 PM 2/18/2011 -0900, "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx> wrote:
>I am rebuilding my 4.2kV PS for the 2m-8877.
That'll get you into AO-51. ;-)
>I was 14 years old when working on my DX-35 with 850vdc on the 6146 plate.
>
>I agree that many hams these days aren't not trained to handle
>high-voltage with all the 12vdc solid-state electronics
>available. But QRO sspa are running at 50vdc and higher. There are
>rules for safe work on HV...time to review them.
I know that's true. Even the large caps in high current 13v supplies. I
thought I had things discharged and just to be sure before I started poking
around with a screwdriver checking other things, I thought I would be sure
the filter caps discharged, so I put the screwdriver across the
terminals .....
You should have seen the spark.
KB7ADL
------------------------------
Message: 5
Date: Fri, 18 Feb 2011 17:20:01 -0500
From: Martha <martha@xxxxx.xxx>
Subject: [amsat-bb] Office Closed
To: AMSAT BB <amsat-bb@xxxxx.xxx>, senior-officers
<senior-officers@xxxxx.xxx>
Message-ID:
<AANLkTi=EEC+UiAxgDj_muU=VJ0s3Cnmhs_CfUSk5A6_s@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
The AMSAT office will be closed on Monday, February 21 for observance of
Presidents' Day.
--
73- Martha
------------------------------
Message: 6
Date: 18 Feb 2011 16:35:34 -0600
From: tosca005@xxx.xxx
Subject: [amsat-bb] Re: Yaesu 847 power supply -linear vs. switching
To: zach hillerson <qstick333@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <Gophermail.2.0.1102181635340.21589@xxxx.xx.xxx.xxx>
Content-Type: text/plain; format=flowed; charset=UTF-8
On Feb 18 2011, zach hillerson wrote:
I purchased a Yaesu 847 for both satellite and HF work.? Since this is my
1st base-style transceiver I am now in need of a power supply.? I was
originally considering the Astron RS35M and am curious if linear or?
switching is the proper choice?? Is there a Amsat BB favorite between
switching and linear??
>
>Thanks for any help!
>
>Zach
>N4ERZ
Zach:
I've had my FT-847 for many years, and have used it both for satellites and
VHF/UHF terrestrial work. (Very little HF, but some).
It has never "complained" about any properly working power supply it's been
hooked to. These include an Astron 20 amp linear PS, an Astron 60 amp
linear, an Astron 35 amp switcher, car battery plus vehicle alternator, and
others when I've brought it out to Field day. Runs perfectly with any of
them.
In general, more power is better, because these amp suckers seem to
multiply. My first PS, the 20 amp linear, worked fine with the FT-847, but
when I added a linear amplifier for the 144-148 MHz band, the combined draw
was too much. I've NEVER managed to draw more power than the 60 amp linear
can provide, but it is an enormous pain (literally and figuratively) to
pull it off its usual resting place in the shack and carry it up two
flights of stairs to load into my SUV to haul out to Field Day. The 35 amp
switcher has done a fine job for me, and the difference in weight is
incredible, at least to a rickety old guy with worn out knees, like yours
truly.
In fact, my FT-847 has NEVER refused to work for me, except for the time I
set it up in a tent trailer for Field Day on a Friday afternoon, and a big
wind storm came through overnight. When I arrived Saturday morning to
complete final setup and get ready to operate, I found that the tent
trailer was lying on its roof, with the FT-847's face planted in the ground
and its back panel holding up one end of the tent trailer. At that point,
the big knob on the front would not turn, but who could blame it? And best
of all, the repairs cost $0.00! After Field Day was over, I brought it
home, started a careful disassembly of the front panel, and discovered that
the reason that the tuning knob wouldn't turn was because the steel
sub-chassis onto which it was bolted had bent from the weight of the
trailer on top of the radio. Some carefully-placed whacks with a big hammer
fixed that. Put it back together and it's worked like a champ ever since.
(I also used some toothpaste to polish up the scratches on the front face
of the tuning knob, and you'd never know it had been treated so cruelly!)
In short, the 35 amp Astron (either linear or switching) will be plenty
strong enough and reliable enough to power an FT-847 and a typical VHF/UHF
amplifier, with power left over to run more small station equipment.
73 de W0JT
------------------------------
Message: 7
Date: Fri, 18 Feb 2011 15:15:51 -0800 (PST)
From: Patrick STODDARD <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] WD9EWK on FO29 @ 2331 UTC today
To: amsat-bb@xxxxx.xxx
Message-ID: <854561.56430.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
I will do one more demonstration today from the Yuma AZ hamfest on FO29
at 2331 UTC today. If you are on that pass, please feel free to call
WD9EWK on there.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 8
Date: Fri, 18 Feb 2011 16:19:24 -0900
From: "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Linear vs. switching and HV DC
To: "Vince Fiscus, KB7ADL" <vlfiscus@xxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <201102190123.p1J1NZBw032271@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 12:26 PM 2/18/2011, Vince Fiscus, KB7ADL wrote:
>At 12:01 PM 2/18/2011 -0900, "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx> wrote:
> >I am rebuilding my 4.2kV PS for the 2m-8877.
>
>
>That'll get you into AO-51. ;-)
Not me! I'm not getting the blame for melting the AO-51 receiver.
> >I was 14 years old when working on my DX-35 with 850vdc on the 6146 plate.
> >
> >I agree that many hams these days aren't not trained to handle
> >high-voltage with all the 12vdc solid-state electronics
> >available. But QRO sspa are running at 50vdc and higher. There are
> >rules for safe work on HV...time to review them.
>
>
>I know that's true. Even the large caps in high current 13v supplies. I
>thought I had things discharged and just to be sure before I started poking
>around with a screwdriver checking other things, I thought I would be sure
>the filter caps discharged, so I put the screwdriver across the
>terminals .....
You know arc welders run at low voltage,,,but lots of
current. Discharging a large filter cap is a potential welding
unit! Same goes for getting across the terminals of a large
battery (a wrench or screwdriver laying across a car battery will
cause a lot melting and possible overheat the battery enough to explode!
>You should have seen the spark.
And a loud "bang" or "pop"?
You ought to hear what 4kV sounds like when it arcs to ground!
Watch for burn and eye damage situations if working around high
capacity/voltage systems.
Rule of HV: NEVER touch a HV circuit until it is verified that no
voltage remains. Hooking/disconnecting HV probes to measure HV is
always done with power-off/discharged. Connect the HV probe/meter
and do not touch them when HV is applied. In commercial HV systems
there is dead-man hook: a metal hook like a shepards crook with a
cable to ground attached to a long insulated handle. You do not hold
it to short HV circuits. YOU toss it onto the circuits and step
quickly back. I was taught this at NASA where we had a walk in 100kV
PS (think it was housed in a semi trailer). It ran the anode on 20kW
s-band klystron amps.
ALWAYS inform someone when you are about to test HV (in case you need
medical assistance). INSTRUCT them to NEVER touch you or go near
the equipment if you get shocked/electrocuted. Show them how to shut
down the Main Breaker on the house (but CALL 911 FIRST, because a lot
of cordless phones quit when the power is off). DO NOT attempt CPR
if you are not absolutely sure that power is off. In most
electrocutions the heart goes into fibrillation and ordinary CPR will
not revive a person. It will extend life if it can be done
safely. Be sure to tell 911-operator that an electrical shock has occurred.
Most electrocutions above 240v are fatal. NO SECOND CHANCE! Sort of
like falling off that 100-foot tower - you only do it once.
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 144-1.4kw*, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
*temp not in service
------------------------------
Message: 9
Date: Fri, 18 Feb 2011 18:48:19 -0800
From: Kevin Deane <summit496@xxxx.xxx>
Subject: [amsat-bb] Arrisat-1
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL107-W5288F825B5BD8740CFF5AC83D70@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I have been slackin, did they put it out or is it still postponed???
Kevin
KF7MYK
------------------------------
Message: 10
Date: Sat, 19 Feb 2011 05:23:41 -0000
From: "Clary, James T, Civilian" <James.T.Clary.civ@xxx.xxxx.xxx>
Subject: [amsat-bb] ND9M/MM - AO7 Ops from RL89
To: <amsat-bb@xxxxx.xxx>
Message-ID:
<91BA9771DE57884FBCD59E08A62C65A8881CDC@xxxxxxxxxxxx.xxxxxxxx.xxx.xxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
I expect to be QRV on AO7 at 19/1703Z near the middle of the band if the
local winds don't get too out of hand overnight. CW will be the mode at
least at first. SSB will be available but I frequently have a hard time
hearing my downlink with lower elevation passes, and this one will top
off at about 14 degrees at my QTH.
I should be in or near grid RL89 at that time.
73,
Jim, ND9M / VQ9JC
Grid RL68
------------------------------
Message: 11
Date: Sat, 19 Feb 2011 07:40:20 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: Arrisat-1
To: "'Kevin Deane'" <summit496@xxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <5B81266AE1794310A325143187D23105@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Kevin,
Delayed until a summer EVA. More detail on the AMSAT and ARISSat web sites.
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Kevin Deane
Sent: Friday, February 18, 2011 8:48 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Arrisat-1
I have been slackin, did they put it out or is it still postponed???
Kevin
KF7MYK
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 12
Date: Sat, 19 Feb 2011 09:22:07 -0600
From: "Nick Pugh K5QXJ" <quadpugh@xxxxxxxxx.xxx>
Subject: [amsat-bb] flex & satpc32
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002601cbd048$c620eb60$5262c220$@xxx>
Content-Type: text/plain; charset="us-ascii"
I am trying to configure a flex and satpc32. I have satpc32 talking to the
flex . I am having trouble hearing the down link when the tx is on the b
vfo. Can some one tell me how to preset the flex ?
Thanks
nick
Office 337 593 8700
Cell 337 258 2527
Helping UL become a world Class Engineering and Educational School
------------------------------
Message: 13
Date: Sat, 19 Feb 2011 09:40:24 -0600
From: Joe <nss@xxx.xxx>
Subject: [amsat-bb] Mode A
To: amsat-bb@xxxxx.xxx
Message-ID: <4D5FE468.3090208@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It has been at least a Decade since i was on a bird.
My question is with all the birds up there now.
Are any operational in mode A ?
Joe WB9SBD
--
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
------------------------------
Message: 14
Date: Sat, 19 Feb 2011 07:46:11 -0800 (PST)
From: Patrick STODDARD <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Yuma AZ hamfest, day 2
To: amsat-bb@xxxxx.xxx
Message-ID: <801347.10880.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
The hamfest in Yuma, Arizona, started out very well yesterday afternoon.
Many more people here compared to the Fridays of the past two hamfests.
Thanks to the stations who called WD9EWK on two passes yesterday, on AO27
and FO29.
This hamfest also has a focus on emergency preparedness, with a
sizable presence from different organizations from the Yuma area.
Not a bad thing, considering a 5.1 earthquake hit this area yesterday
morning (no damage here; it was centered about 45 miles/70km southeast
of Calexico and El Centro CA in Baja California), lots of
rain this morning, and the power has been out here at the hamfest
site for the past 60 minutes or so. Once the lightning stops outside,
I can still do demonstrations later with my portable station. :-)
Again, please feel free to call WD9EWK if you hear me on passes later
today. I appreciate the fact most stations were giving more than just a
grid locator yesterday, to help illustrate the coverage of our satellites
for the crowds.
73!
Patrick WD9EWK/VA7EWK - Yuma, Arizona
http://www.wd9ewk.net/
------------------------------
Message: 15
Date: Sat, 19 Feb 2011 10:27:45 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: flex & satpc32
To: "'Nick Pugh K5QXJ'" <quadpugh@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <DA81C5B5B33D4A898A75B76EFD294F7E@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Nick,
One of the current problems with using SATPC32 is that since the Flex does
not support the TS-2000 satellite mode, the uplink and downlink are assigned
wrong VFO. This is problem since it tries to transmit on RX2. The
SATPC32ISS does work, since it does not use the satellite mode. Until the
satellite mode is fully implemented in PowerSDR, you will have little luck
driving it with the standard SATPC32. Sorry.
When I was trying to get the 2.0.16 PowerSDR to work, I also encountered
some issues with the sound. I could see the signal in the second
panadapter, but not hear it clearly. I decided it was not worth pursing at
this point, but a few things to check. Under Setup | General | RX2, make
certain the mute boxes are not checked. Also, try the latest, released last
night, PowerSDR 2.0.19 RC1. It fixes several things about the VU5K. I was
able to install it with no problem. It will be interesting to see what the
new software and firmware does, but that will have to wait here for a few
days. Good luck.
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Nick Pugh K5QXJ
Sent: Saturday, February 19, 2011 9:22 AM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] flex & satpc32
I am trying to configure a flex and satpc32. I have satpc32 talking to the
flex . I am having trouble hearing the down link when the tx is on the b
vfo. Can some one tell me how to preset the flex ?
Thanks
nick
Office 337 593 8700
Cell 337 258 2527
Helping UL become a world Class Engineering and Educational School
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Message: 16
Date: Sat, 19 Feb 2011 11:43:39 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Mode A
To: Joe <nss@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4D5FF33B.9000106@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 2/19/2011 10:40 AM, Joe wrote:
> It has been at least a Decade since i was on a bird.
>
> My question is with all the birds up there now.
>
> Are any operational in mode A ?
>
> Joe WB9SBD
AO-7 is in Mode A every other day. Check oscar.dcarr.org for the current
mode switch pattern. It works, but it's not anywhere as strong as say
RS-10/11 or 12/13.
73, Drew KO4MA
------------------------------
Message: 17
Date: Sat, 19 Feb 2011 16:47:43 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Mode A
To: Joe <nss@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<1728315214.1244664.1298134063429.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Hi Joe
For mode A, AO-7 is our baby.? See http://www.planetemily.com/ao7/ao7log.php
?it switches between mldes A & B every 24 hours about 2325Z.? ?Check the on
line log.? AO7 has a fascinating history it's available at the
aforementioned web site.? See you there.
73 Bob W7LRD
----- Original Message -----
From: "Joe" <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Saturday, February 19, 2011 7:40:24 AM
Subject: [amsat-bb] ?Mode A
It has been at least a Decade since i was on a bird.
My question is with all the birds up there now.
Are any operational in mode A ?
Joe WB9SBD
--
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
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End of AMSAT-BB Digest, Vol 6, Issue 106
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