Another $.02 from this neck of the woods...
BNC connectors may generally be more robust than SMA, but BNCs are not
totally free from problems. The center pin on my Alinco DJ-580 cracked
away from the wire going to the PC board, and the cylinder came loose on
its mounting (allowing it to twist
So...in several weeks you will launch?
Roger
WA1KAT
On 2/23/2012 3:57 PM, Bob Bruninga wrote:
We are working on a 28 MHz transatlantic Balloon with a
CW transmitter on 10m using (of course) a vertical dipole.
Do you have a 10 meter (28 MHz) vertically polarized beam?
The response was as expect
Has anyone used a preamplifier in a portable setup based on an Arrow cross
yagi? Concern is whether there is enough isolation on 70 cm input from the 2m
harmonics. ARR. Told me they would not recommend this setup. What you all think?
Thanks,
Tom, N5HYP
--
Sent from my Android phone with K-9 Ma
I have rewound a few of these motor coils and a #24 to #26 gauge enamel wire
should work. A #22 gauge enamel wire would be too large and you would not be
able to wind the same number of turns.
It is the breakdown of the enamel due to wire heating that makes them fail
by creating a short circui
Just as a follow on, I stuck a watt meter on the controller I have
(LVB and custom driver board)
2-3 watts idle approx 51 watts turning in AZ or EL, 48 watts stalled in
one direction 56 watts
stalled the other way in AZ, 56 watts stalled up 50 watts stalled down
in EL, so slightly less or
sli
Sorry my mistake, been looking at shaded pole motors for a SB-200 amp
and it stuck...
Yes you are correct AC induction with a capacitor providing the
phase shift, when
I was making a board to connect to a LVB controller to totally do away
with the G-5500
control box I measured the current w
I apologize for not properly "trimming" that message regarding SMA adapters
earlier today.
Clint
--
Clint Bradford, K6LCS
http://www.clintbradford.com
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the
Hi Dave
I have rewound the motors. It take a couple of hours but is doable. I went
to Radio shack and bought I think # 24 or 26 gale wire.
nick
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of David Palmer KB5WIA
Sent: Thursday, Februar
On 2/23/12 12:30 PM, Len Revelle wrote:
> My Hi-Q screwdriver antenna uses a resettable fuse that opens when the
> drive hits top or bottom, takes a few minutes to reset after the current
> subsides, and you save the motor. Seems the simplest fix to the rotor.
Yes, it does. Do you know the rating
> We are working on a 28 MHz transatlantic Balloon with a
> CW transmitter on 10m using (of course) a vertical dipole.
> Do you have a 10 meter (28 MHz) vertically polarized beam?
The response was as expected. No one has. Therefore we will accept
horizontal beam headings. Also we will ask for
The BNC-to-SMA adapters from Stephen Gulyas are designed to absorb stress from
cabling and "accidents."
Details on the ANTENNAS page at ...
Http://www.work-sat.com
Clint K6LCS
Sent from my iPod touch.
On Feb 23, 2012, at 9:17, amsat-bb-requ...@amsat.org wrote:
> Send AMSAT-BB mailing list s
Hi, (name/call?)!
> My two cents worth- using an SMA to BNC adaptor does not address the
> mechanical problem of an antenna or a coax flexing the SMA chassis connector-
> especially the plastic HTs- I had to do a number on my VX5 which is a metal
> case HT.
The original two-part SMA-to-BNC adapte
On 2/23/12 8:29 AM, WA6FWF wrote:
> Hi David,
> As you found out shaded pole motors do not pull more current when
> they stall, they
> actually pull less and so they wont blow the fuse, they just sit and cook.
Are you sure these are shaded-pole motors? They're designed for a
single-phase suppl
On 2/23/12 6:31 AM, David Palmer KB5WIA wrote:
>
> Question to the list: does anyone have a G5500 azimuth rotator with a
> working motor available for parts? Or any other ideas for
> replacement?
You might consider rewinding it yourself. I did that with one of mine
some years ago, and it worked
Its called CHANGE
- Original Message -
From: "BobHerrell"
To: amsat-bb@amsat.org
Sent: Thursday, February 23, 2012 1:00:48 PM
Subject: [amsat-bb] QSL Cards
Hello all,
I just returned from the post office where I mailed all the HI4/AJ5C
Satellite contact QSL cards. Look for them in a fe
Hello all,
I just returned from the post office where I mailed all the HI4/AJ5C
Satellite contact QSL cards. Look for them in a few days. I know the
post office is slowing down with all their consolidations of processing
centers. It's crazy. We have a #1 rated processing center here in
Harris
Thanks Drew, Dee, and Kevin!
Yes, I definitely plan to add a thermal switch to the replacement
motor on the rebuild -- hopefully to prevent such a thing from
happening again, ugh!
Mike WA6ARA suggested a company down in LA that rewinds motors -- I
sent them a description, and they wrote back at 1
Hi guys,
My two cents worth- using an SMA to BNC adaptor does not address the
mechanical problem of an antenna or a coax flexing the SMA chassis connector-
especially the plastic HTs- I had to do a number on my VX5 which is a metal
case HT. I'd suggest a pigtail SMA to BNC for connecting to
Hi, everyone --
During the fun surrounding the Vega launch, I made a new kep file for
the experimental keps and loaded those birds into SatPC32. This got me
wondering if my workflow is incorrect, or if I really do need to stop
viewing the birds from nasa.all or amsat.txt when using this other
file
Tnx folks for the input, i have now ordered the Diamond SMA\BNC connector., 73
de VE6ITV Scott
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscri
Hi David,
As you found out shaded pole motors do not pull more current when
they stall, they
actually pull less and so they wont blow the fuse, they just sit and cook.
So while your changing the motor now might be a good time to put 2
thermal cutout switches
inside on the windings so th
Hi!
> Hi folks, just updated my h/held to a HT-D72a as my FT530 as it’s getting on
> in age. I liked the BNC connector on the FT530 it was easy to connect to my
> mobile antenna, but the HT-D72a uses a flimsy SMA connector. does anyone
> used this radio as a mobile? what kind of connection to your
Hi folks, just updated my h/held to a HT-D72a as my FT530 as it’s getting on in
age. I liked the BNC connector on the FT530 it was easy to connect to my mobile
antenna, but the HT-D72a uses a flimsy SMA connector. does anyone used this
radio as a mobile? what kind of connection to your mobile wh
On 2/23/2012 3:37 AM, Tony Langdon wrote:
At 07:38 PM 2/23/2012, KE7OSN wrote:
I have a few Windows computers running the AGW Packet Engine as a
Software
TNC. I would like to find something that provides similar
functionality but
for Linux. I am hoping someone out there uses a Linux computer
Dave,
Drew suggests what I was going to pass on to you...Keep this in mind for
future posts.
73,
Dee, NB2F
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Andrew Glasbrenner
Sent: Thursday, February 23, 2012 10:05 AM
To: David Palmer KB5
-Original Message-
>From: David Palmer KB5WIA
>
>Question to the list: does anyone have a G5500 azimuth rotator with a
>working motor available for parts? Or any other ideas for
>replacement?
>
I successfully transplanted a G-450 motor into one of my 5500s after a similar
occurrenc
Hi Everyone,
Well I'll be QRT from the sats for a little while!! After replacing
my UHF antenna on the backyard satellite array, I managed to catch the
(slightly longer) new antenna on the house roof and jammed the Yaesu
G-5500 rotator, ugh! Even though I had replaced the normal 2-amp
fuses in
At 07:38 PM 2/23/2012, KE7OSN wrote:
I have a few Windows computers running the AGW Packet Engine as a Software
TNC. I would like to find something that provides similar functionality but
for Linux. I am hoping someone out there uses a Linux computer with a
software TNC for satellites, but if no
Anthony,
> I have a few Windows computers running the AGW Packet Engine as a Software
> TNC. I would like to find something that provides similar functionality but
> for Linux. I am hoping someone out there uses a Linux computer with a
> software TNC for satellites, but if nothing else would like
Sorry, usually fail to respond to lists themselves. Resent to list for
completeness.
Darren, G0HWW
Sent from my iPad
Begin forwarded message:
> From: Darren Long
> Date: 23 February 2012 08:58:03 GMT
> To: KE7OSN
> Subject: Re: [amsat-bb] Linux software TNC
>
> Soundmodem works well for me
I have a few Windows computers running the AGW Packet Engine as a Software
TNC. I would like to find something that provides similar functionality but
for Linux. I am hoping someone out there uses a Linux computer with a
software TNC for satellites, but if nothing else would like the find out
what
31 matches
Mail list logo
