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CX2SA > SATDIG 02.03.10 03:26l 870 Lines 30814 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Wish List, The Ideal VHF/UHF Sat Rig (racer)
2. Re: AO-51 (Alan P. Biddle)
3. Re: Wish List, The Ideal VHF/UHF Sat Rig (Steve Meuse)
4. Re: Wish List, The Ideal VHF/UHF Sat Rig (Nigel Gunn G8IFF/W8IFF)
5. Re: Wish List, The Ideal VHF/UHF Sat Rig (Gordon JC Pearce)
6. Re: Wish List, The Ideal VHF/UHF Sat Rig (Tom Clark, K3IO)
7. Re: Wish List, The Ideal VHF/UHF Sat Rig (Sebastian)
8. Re: Wish List, The Ideal VHF/UHF Sat Rig (Mike Benonis)
9. Re: Wish List, The Ideal VHF/UHF Sat Rig (Mark L. Hammond)
10. Re: Wish List, The Ideal VHF/UHF Sat Rig (Alan P. Biddle)
11. Re: Wish List, The Ideal VHF/UHF Sat Rig (Clint Bradford)
12. Re: AO-51 (Stephen Melachrinos)
13. Re: Wish List, The Ideal VHF/UHF Sat Rig (Edward Cole)
14. How to correctly log multiple grids? (Michae J. Wolthuis)
15. Re: How to correctly log multiple grids? (David - KG4ZLB)
16. More Evidence For Water On The Moon (B J)
17. Re: Wish List, The Ideal VHF/UHF Sat Rig (James Duffey)
----------------------------------------------------------------------
Message: 1
Date: Mon, 1 Mar 2010 14:51:15 -0600
From: "racer" <racer5039@x.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: "Fabio Roccatagliata" <roccaf@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <BLU0-SMTP89815722F415F37C34D2EDAC3C0@xxx.xxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I'm been thinking about this type of radio also.
My wish list (being a Kenwood guy) would be, take the case of the 480 HX
load it with 2M ,440, and maybe 1.2G all mode.
I'm no radio builder but I would think that using the case and head wouldn't
be that hard.
I'd really like to see something other than the ts-2000 that would run the
sats.
N0FJP
--------------------------------------------------
From: "Fabio Roccatagliata" <roccaf@xxxxx.xxx>
Sent: Monday, March 01, 2010 02:30 PM
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
> Dear friends,
>
> I agree with the 100W power requirement I completely agree with WF1F about
> not including the 28Mhz.
>
> I was wondering what about an SDR approach. Until now I just saw hf SDR
> radios but if it would be possible to use SDR technology most of the
> requirements would be satisfied and, quite sure, with lower costs and
> giving
> us the chance to customize much more easily such features.
>
> An SDR approach would also give to not major hamradio companies a chance
> to
> be more competitive on the market = more chances to get from them what we
> want
>
> Regards
> Fabio
> IZ1EGT / F5VKV
>
> On Mon, Mar 1, 2010 at 9:12 PM, MM <ka1rrw@xxxxx.xxx> wrote:
>
>> Hi John,
>>
>> My concern with adding 10 meters to a competition class VHF/UHF high end
>> satellite rig, is that the rig will turn into another mediocre HF rig
>> with
>> VHF/UHF added on.
>>
>> If we do start building Mode-A satellites in the future, then we can
>> always use Two radios, a dedicated HF and a High performance Sat rig.
>>
>> The primary goal is to have the engineers put all the money into a kick
>> but
>> 6/2/440 transceiver.
>>
>> Thank you very much for your comments.
>>
>> WF1F
>>
>>
>> --- On Mon, 3/1/10, John Geiger <aa5jg@xxxxx.xxx> wrote:
>>
>> > From: John Geiger <aa5jg@xxxxx.xxx>
>> > Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
>> > To: "Mark L. Hammond" <marklhammond@xxxxx.xxx>, "Andrew Glasbrenner" <
>> glasbrenner@xxxxxxxxxx.xxx>
>> > Cc: amsat-bb@xxxxx.xxx
>> > Date: Monday, March 1, 2010, 2:32 PM
>> >
>> >
>> > --- On Mon, 3/1/10, Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
>> > wrote:
>> >
>> > > >> No access to frequencies below 50
>> > megacycles.
>> > > >>
>> > > Many serious 6m ops listen to utilities below 50Mhz to
>> > tell
>> > > when the
>> > > banding is close to opening.
>> >
>> >
>> > You also need 10m for Mode A. I'm still hoping that
>> > RS12/13 pops back to life like AO7 and will have its Mode T
>> > going again. That was alot of fun.
>> >
>> > 73s John AA5JG
>> >
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > 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
>> >
>>
>>
>>
>>
>>
>> _______________________________________________
>> 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
>>
> _______________________________________________
> 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: Mon, 1 Mar 2010 14:58:57 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51
To: "'Andrew Glasbrenner'" <glasbrenner@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <DA826F8D65244EA4874876BD5DB144B1@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Of course, then a 12' long car would only be about 5/8" or 1.5 cm. Still,
uncomfortably close.
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Andrew Glasbrenner
Sent: Monday, March 01, 2010 2:33 PM
To: "John Becker, W?JAB"
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51
John Becker, W?JAB wrote:
> So just how close was close?
>
> John, W0JAB
>
It's all predictive until they smack together, but the estimates this
morning said 893m overall, but only 39m radially. I'm visualizing that
as one car merging on a highway at 17,500 mph, with one 3000 feet in
front of, and 120 feet left or right of the other. Scale the 17,500 mph
to 70 mph, and the distances in the analogy would be 12 feet in front
of, and 6 inches abreast. Just to put the velocity and distances in
perspective!
73, Drew KO4MA
_______________________________________________
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: 3
Date: Mon, 1 Mar 2010 16:04:43 -0500
From: Steve Meuse <smeuse@xxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: Ken Ernandes <n2wwd@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Message-ID: <20100301210443.GB19451@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Ken Ernandes expunged (n2wwd@xxxxxxxxxx.xxxxx
> 1. Can I come up with a design to these specifications that I can sell in
the realistic price range of the typical amateur operator?
> 2. Is there a large enough market out there that I can make a profit on
this exercise?
I generally agree with these questions, but how do you explain the Icom
IC-7800? That's a $10,000 rig!
I personally am planning on skipping the "all-in-one" box (even if it
actually existed) and will be building an SDR/Transverter based system
eventually. I think you have much better control of your environment with
the SDR/Xverter combo.
-Steve
N1JFU - http://n1jfu.blogspot.com - smeuse@xxxxxxx
------------------------------
Message: 4
Date: Mon, 01 Mar 2010 21:30:18 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: amsat-bb@xxxxx.xxx
Message-ID: <4B8C31EA.3060306@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
It's predominantly sold to the commercial/government market.
On 01-Mar-10 21:04, Steve Meuse wrote:
>
> I generally agree with these questions, but how do you explain the Icom
IC-7800? That's a $10,000 rig!
>
------------------------------
Message: 5
Date: Mon, 01 Mar 2010 21:33:16 +0000
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: amsat-bb@xxxxx.xxx
Message-ID: <1267479196.6554.30.camel@xxxxx.xxxx>
Content-Type: text/plain; charset="UTF-8"
On Mon, 2010-03-01 at 21:30 +0100, francesco messineo wrote:
> Hello,
>
> beeing an engineer (RF/telecom) and V/UHF (and sat) addicted, I'm
> always thinkin about this very same issue, but I think that the best
> RTX would come from a bunch of engineers with an "open source" like
> project, not from one of the current manufacturers.
How I wish Motorola would open-source their firmware for their
commercial radios. I spent a whole day working around *stupid* bugs in
Mototrbo radios, that I'm pretty certain I could have fixed properly in
the same amount of time given access to the appropriate developer
toolchain and source.
I'm still stuck with a crash bug triggered by trying to clear an
Emergency button activation - so when you hit your "emergency" button
the dispatcher radio resets itself. Ooooh-kay, I'll just file a bug...
oh no I won't, because I can't and Motorola do not welcome any comments
about software or hardware defects. Great job, guys.
</rant>
Gordon MM0YEQ
------------------------------
Message: 6
Date: Mon, 01 Mar 2010 16:55:49 -0500
From: "Tom Clark, K3IO" <tom.k3io@xxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B8C37E5.8010403@xxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
There is one US made radio on the market today that will meet >>>ALL<<<
the desires & requirements discussed in this thread -- and it is made by
an AMSAT member (K5SDR)! It was on view at last fall's AMSAT Symposium.
I say "ALL" contingent on the release of one module RSN (Real! Soon! Now!).
I'm talking about the software-defined Flex 5000 (see
http://www.flex-radio.com/). When the new V/U module is released (by
Dayton), the F5K can be used at the 100W level on 160-6M, and 60W on
V=2M & U=70cm. It will operate Full-Duplex in any combination of V/U
(+10 meters). Greg, K5GJ described the new V/U module fully at the AMSAT
Symposium. Flex has offered significant door prizes (like half of a base
5K) at all the recent AMSAT & TAPR meetings (I won a prize that I
converted to a V/U upgrade for my personal F5K; I eagerly expect it in
the next month or so).
For some more info, this is clipped from the Flex advertising describing
the new V/U module:
> The FLEX-5000 V/U module is a fully integrated all-mode, all-band
> (144-148/430-450 MHz) full-duplex VHF/UHF module that adds both 2m and
> 70 cm capabilities to the already outstanding FLEX-5000 family of
> software defined radios. All of the FLEX-5000 V/U module's
> oscillators are locked to the 500 MHz master oscillator in the
> FLEX-5000, which in turn is locked to the internal 0.5ppm reference or
> it may be connected to an external 10 MHz reference for even greater
> frequency stability.
If want additional HF capability, you can add a second receiver and/or
automatic antenna tuner. You can tie the entire radio to a GPS or
Rubidium frequency reference for accuracy/stability at levels better
than a part per billion.
For any of the microwave bands (23 cm and up), either the V or U channel
can serve as the IF for a transverter. For the wider bandwidth modes
discussed for the "HR-956-Pro", the F5K is capable of supporting
anything up to a few hundred kHz. For these SDRs, new software support
shows up daily, contributed (free) by a significant cadre of amateurs.
If a modem for some different mode, is needed, IOS (It's Only Software! ).
And the price for a fully decked out is less than half of that forecast
for the "fictional HR-956-Pro" (even including a suitable PC).
SUPPORT THE US MANUFACTURERS! THEY ARE A RARE BREED!
73, Tom
------------------------------
Message: 7
Date: Mon, 1 Mar 2010 17:02:27 -0500
From: Sebastian <w4as@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Message-ID: <656D2F69-8339-45D8-B5D1-C72E8325DC1D@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I ordered a cheap 6 meter SDR (about $20) to dedicate with a netbook to
monitor the beacon portion of 6 meters.
73 de W4AS (who wants to daisy chain a Flex 1500 with a couple of DEMI
transverters)
> Many serious 6m ops listen to utilities below 50Mhz to tell when the
> banding is close to opening.
>
> 73, Drew KO4MA (Who'd settle for a full duplex FT-817)
------------------------------
Message: 8
Date: Mon, 1 Mar 2010 17:07:31 -0500
From: Mike Benonis <mailinglists@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: BB <amsat-bb@xxxxx.xxx>
Message-ID: <1D861ED9-13C4-432F-ACF6-CCA637F38061@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On 01 Mar 2010, at 13:44, MM wrote:
>
> VHF / UHF Optional bands or Transverter:
> The Amateur radio community is constantly experimenting with new bands.
It would be nice to have a Transverter module or expansion module for future
bands. In the USA these bands are becoming popular, 220mc, 900 mc, etc
Expansion modules would be very nice--drop it in and it works. 900, 2.3/2.4
GHz, maybe even higher bands.
>
> No obsolete Serial ports:
> No RS-232 or TTL.
> These devices are so last century.
RS232 is still extremely important for interfacing with older computers,
accessories, or homebrew gadgets. I can't think of a simpler way to do it.
Maybe put it on something other than a DE-9 connector though.
Mike KI4RIX
Best regards,
Mike Benonis
mike@xxxxxxx.xxx
KI4RIX
------------------------------
Message: 9
Date: Mon, 1 Mar 2010 17:13:22 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: K3IO@xxxxxxx.xxx
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<5d8cecfe1003011413g3c9a7f41wc285883389d788a8@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
That's right, Tom--the same thought occurred to me as the list was
growing: "Hey, that sounds like the Flex-5000 with uhf/vhf modules!"
By my early calculations (but poor memory!) it's approaching
$4000-5000, depending on the options added. It's a signficant radio,
and it has a signficant price tag to match. Most of us (me in that
group) wish it was more like $2-3k...but it's understandable why it's
not in that range.
It may stay on my dream list for a while...
73,
Mark N8MH
On Mon, Mar 1, 2010 at 4:55 PM, Tom Clark, K3IO <tom.k3io@xxxxx.xxx> wrote:
> There is one US made radio on the market today that will meet >>>ALL<<<
> the desires & requirements discussed in this thread -- and it is made by
> an AMSAT member (K5SDR)! It was on view at last fall's AMSAT Symposium.
> I say "ALL" contingent on the release of one module RSN (Real! Soon! Now!).
>
> I'm talking about the software-defined Flex 5000 (see
> http://www.flex-radio.com/). When the new V/U module is released (by
> Dayton), the F5K can be used at the 100W level on 160-6M, and 60W on
> V=2M & U=70cm. It will operate Full-Duplex in any combination of V/U
> (+10 meters). Greg, K5GJ described the new V/U module fully at the AMSAT
> Symposium. Flex has offered significant door prizes (like half of a base
> 5K) at all the recent AMSAT & TAPR meetings (I won a prize that I
> converted to a V/U upgrade for my personal F5K; I eagerly expect it in
> the next month or so).
>
> For some more info, this is clipped from the Flex advertising describing
> the new V/U module:
>> The FLEX-5000 V/U module is a fully integrated all-mode, all-band
>> (144-148/430-450 MHz) full-duplex VHF/UHF module that adds both 2m and
>> 70 cm capabilities to the already outstanding FLEX-5000 family of
>> software defined radios. ?All of the FLEX-5000 V/U module's
>> oscillators are locked to the 500 MHz master oscillator in the
>> FLEX-5000, which in turn is locked to the internal 0.5ppm reference or
>> it may be connected to an external 10 MHz reference for even greater
>> frequency stability.
> If want additional HF capability, you can add a second receiver and/or
> automatic antenna tuner. You can tie the entire radio to a GPS or
> Rubidium frequency reference for accuracy/stability at levels better
> than a part per billion.
>
> For any of the microwave bands (23 cm and up), either the V or U channel
> can serve as the IF for a transverter. For the wider bandwidth modes
> discussed for the "HR-956-Pro", the F5K is capable of supporting
> anything up to a few hundred kHz. For these SDRs, new software support
> shows up daily, contributed (free) by a significant cadre of amateurs.
> If a modem for some different mode, is needed, IOS (It's Only Software! ).
>
> And the price for a fully decked out is less than half of that forecast
> for the "fictional ?HR-956-Pro" (even including a suitable PC).
>
> SUPPORT THE US MANUFACTURERS! THEY ARE A RARE BREED!
>
> 73, Tom
>
>
> _______________________________________________
> 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
>
--
Mark L. Hammond [N8MH]
------------------------------
Message: 10
Date: Mon, 1 Mar 2010 16:39:46 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: "'Mark L. Hammond'" <marklhammond@xxxxx.xxx>
Cc: 'AMSAT BB' <amsat-bb@xxxxx.xxx>
Message-ID: <9F03C1227BFC4C1282F34A019E964E9A@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
When I retired 4 years ago, I had a long list of things to do, get, or build
on my ham radio To Do list. After looking at the Flex 5K, I realized that
well over half of them would be rendered moot by it. Since virtually none
of my operating is on HF, I have been waiting (and waiting, and waiting,)
for the V/U module to be ready. While waiting, I have gathered a few tools
to go with it, including a GPS disciplined reference oscillator, so I will
never need to wonder about what frequency I am really on. It looks as if
that time is almost here, and I will be able to retire my venerable FT-847.
Who knows, I may even start working HF again. And it will feel good to buy
American again. The last purely US Rig I had was from Hallicrafters.
Alan
WA4SCA
------------------------------
Message: 11
Date: Mon, 1 Mar 2010 16:04:11 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: amsat-bb@xxxxx.xxx
Message-ID: <B5EDADA0-B8AD-4C11-972F-A738953E8E3E@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
When Clint wins the lottery ...
I am going to have 10,000 or so handhelds (sorry, guys) made that are truly
useable by the visually-impaired - and give 'em away to that community.
Voice prompts and voice when any key is touched. An intelligently-laid-out
keypad that gets spec'd to me by HandiHams. Something TRULY appreciated by
that community.
I have seen visually-impaired hams work with the old ADI AT-600 - which was
well-received. But there's so much more than can be put into an HT. I mean,
hams liked the AT-600 (and Kenwood TH-F6a) because it "beeped" at certain
points when programming (like when you scrolled CTCSS and hit 100.0hz). But
we need to build voice into every step of programming. The technology is
there.
OK. Enough for Clint's off-topic rant. But if you ever see me on CNN as a
lottery winner - expect a GREAT handheld radio for the visually-impaired
about six months thereafter.
Clint, K6LCS
------------------------------
Message: 12
Date: Mon, 01 Mar 2010 18:09:55 -0600 (CST)
From: Stephen Melachrinos <melachri@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51
To: amsat-bb@xxxxx.xxx
Message-ID:
<16303142.154376.1267488596427.JavaMail.root@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Drew -
But remember that this is three-dimensional; your example is 2-D.
I'm pretty sure that "39 meters radial" is referencing the instantaneous
radius of the orbit; that means that at the closest approach, the predicted
altitude of one spacecraft was 39 meters higher than the other. Pythagoras
tells us that if the hypotenuse of a right triangle is 893 meters, and the
height (=radial distance) is 39 meters, then the length of the base of the
triangle is just over 892 meters. View this as the radius of a circle,
centered on one satellite but 39 meters either above or below it, and the
other satellite flies by, in the plane of and tangent to the circle.
AO-51 has an inclination of about 100 degrees; Formosat-3D has an
inclination of (I believe) 72 degrees. Without going through the
calculations I'm not sure of the actual trajectories, but my modification of
your visualization is the following:
The two satellites are each "driving" along interstate highways (at 17,500
mph). The two highways do cross each other (at some angle which is
determined by the inclinations and trajectories as mentioned above), but one
highway is elevated 39 meters (about 128 feet) above the other. When the two
vehicles get to their closest point, there's 892 meters between them
horizontally, and 39 meters between them vertically.
Now I'm not making light of how uncomfortable this approach is. Even though
space is big (that's why they call it space), this is definitely
uncomfortably close. The reason is that our ability to predict exactly where
a spacecraft is at a precise time in the future is not perfect. The
uncertainties are small from the perspective of antenna pointing angles on
the ground, but they're large compared to the dimensions of this example.
Instead of viewing the orbits as roadways, where you know that a car is
exactly in a lane that's ten feet wide, a better view is that these are
tubes whose internal radius is a hundred meters or so; the vehicle can be
anywhere within the tube's cross-section. (Those are known as radial and
cross-track errors.) And its position lengthwise in the tube (the "in-track"
position) at any precise moment in time is only known to a hundred meters or
so. So if two orbits are only separated by 39 meters, their tubes actually
intersect for a large portion of t!
heir cross-sections. And when you add in the in-track uncertainties, that
893 meter separation gets eaten up really quick.
Steve
W3HF
Mar 1, 2010 03:40:54 PM, glasbrenner@xxxxxxxxxx.xxx wrote:
> It's all predictive until they smack together, but the estimates this
> morning said 893m overall, but only 39m radially. I'm visualizing that
> as one car merging on a highway at 17,500 mph, with one 3000 feet in
> front of, and 120 feet left or right of the other. Scale the 17,500 mph
> to 70 mph, and the distances in the analogy would be 12 feet in front
> of, and 6 inches abreast. Just to put the velocity and distances in
> perspective!
> 73, Drew KO4MA
------------------------------
Message: 13
Date: Mon, 01 Mar 2010 15:39:11 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: <amsat-bb@xxxxx.xxx>
Message-ID: <201003020039.o220dFdK012436@xxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 01:39 PM 3/1/2010, Alan P. Biddle wrote:
>When I retired 4 years ago, I had a long list of things to do, get, or build
>on my ham radio To Do list. After looking at the Flex 5K, I realized that
>well over half of them would be rendered moot by it. Since virtually none
>of my operating is on HF, I have been waiting (and waiting, and waiting,)
>for the V/U module to be ready. While waiting, I have gathered a few tools
>to go with it, including a GPS disciplined reference oscillator, so I will
>never need to wonder about what frequency I am really on. It looks as if
>that time is almost here, and I will be able to retire my venerable FT-847.
>Who knows, I may even start working HF again. And it will feel good to buy
>American again. The last purely US Rig I had was from Hallicrafters.
>
>Alan
>WA4SCA
>______________________________________________
>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
Nice if you can afford it. My advice is do not wait until retirement
to buy that dream radio. Living on social security and medicare does
not provide for new toys! I am stuck with having to convince my wife
to let me spend $3K of my 401K for ham radio...haven't worked up the
courage, yet. We decided to withdraw $8K to payoff her new Toyota
Sienna van so we are not having to come up with $600 car payments
each month for another couple years.
I have figured out that interest on my 401K will just be enough to
pay my income tax on my social security...wow!
What is my dream radio? Elecraft-K3 (dual-Rx) with new DEMI 2m &
70cm xvtrs. I can't even think about a F5K (dual-Rx).
I do have an SDR-IQ, FT-847, and FT817. Figured that selling the
FT-847 would (maybe) pay for the new xvtrs.
Reality...I probably will have to quit ham radio when the FT-847 dies :-(
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
500-KHz/CW, 144-MHz EME, 1296-MHz EME
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
------------------------------
Message: 14
Date: Mon, 1 Mar 2010 19:55:40 -0500
From: "Michae J. Wolthuis" <wolthui3@xxx.xxx>
Subject: [amsat-bb] How to correctly log multiple grids?
To: <amsat-bb@xxxxx.xxx>
Message-ID: <024701cab9a3$14f37db0$3eda7910$@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Can anyone tell me when Jim (ND9M) says he is in EM00/01 how do I best enter
that in N3FJP's Amateur Contact Log program? Currently I have been putting
in the grid exactly as EM00/01 but I don't know if that works with eQSO or
LoTW or is even appropriate. Should I be making two entries?
Also, If Jim says Portable I put it in as ND9M/P or if someone says handheld
I put callsign/H is that the appropriate logging method for eQSO and LoTW or
should I just put ND9M?
Thanks Jim for the grids again tonight!
73s
Mike
Kb8zgl
------------------------------
Message: 15
Date: Mon, 01 Mar 2010 20:05:08 -0500
From: David - KG4ZLB <kg4zlb@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: How to correctly log multiple grids?
To: amsat-bb@xxxxx.xxx
Message-ID: <4B8C6444.40800@xxxxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Two entries. Separate them by 1 min in the time field!
--
David
KG4ZLB
www.kg4zlb.com
On 3/1/2010 19:55, Michae J. Wolthuis wrote:
> Can anyone tell me when Jim (ND9M) says he is in EM00/01 how do I best enter
> that in N3FJP's Amateur Contact Log program? Currently I have been putting
> in the grid exactly as EM00/01 but I don't know if that works with eQSO or
> LoTW or is even appropriate. Should I be making two entries?
>
>
>
> Also, If Jim says Portable I put it in as ND9M/P or if someone says handheld
> I put callsign/H is that the appropriate logging method for eQSO and LoTW or
> should I just put ND9M?
>
>
>
> Thanks Jim for the grids again tonight!
>
>
>
> 73s
>
> Mike
>
> Kb8zgl
>
>
>
> _______________________________________________
> 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: 16
Date: Mon, 1 Mar 2010 17:07:39 -0800 (PST)
From: B J <top_gun_canada@xxxxx.xxx>
Subject: [amsat-bb] More Evidence For Water On The Moon
To: amsat-bb@xxxxx.xxx
Message-ID: <11928.13018.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
http://www.nasa.gov/home/hqnews/2010/mar/HQ_10-055_moon_ice.html
73s
Bernhard VA6BMJ @ DO33FL
__________________________________________________________________
The new Internet Explorer? 8 - Faster, safer, easier. Optimized for Yahoo!
Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/
------------------------------
Message: 17
Date: Mon, 1 Mar 2010 18:15:56 -0700
From: James Duffey <jamesduffey@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig
To: MM <ka1rrw@xxxxx.xxx>
Cc: James Duffey <jamesduffey@xxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <BF69901C-73DC-4414-B3F4-72C9A03D6CB3@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
You forgot to include 222 MHz. With 222 MHz, you would sell a lot to weak
signal VHF guys. It is even more lacking in commercial gear than satellite
capable rigs.
I loved Mode A, so I second including 28 MHz. Plus if you don't include 222
MHz, people who have transverters can use 28 MHz as an IF.
I assume that you are talking about two radios in a single box, or if not
you should be. One of the radios at least should have a separate receive
input to facilitate separate feedline runs to a mast mounted preamp. That
simplifies switching at the antenna a lot, particualrly with a built in
sequencer (by band).
Two antenna inputs per band. This would allow a high gain antenna and an
omnidirectional antenna to be used without antenna switching external to the
radio. The ability to share a single antenna input between band or bands
would be nice.
I rove a lot and would like the rig for that. For roving, 100W per band,
perhaps 30W-50W on 902 and 1296 is the minimum acceptable for portable use.
If the power is adjustable per band, I do not see the problem with this
power level. Also, there is a lot to be gained in tropo work in going from
25W to 100W, lots and lots.
Good front end filtering is essential.
With a SDR, why not build in a computer with tracking, logging, digital
modes available. Just plug in a keyboard and mike and go.
IF output is very useful for lots of things.
A pair of K2s, equipped with the XV50 to XV432 series transverters come
close to meeting your requirements, as does a K3 equipped with the
subreceiver and XV144 to XV432 transverters. In particular, the Elecraft
implementation of transverter interface and switching is very nice. - Duffey
--
KK6MC
James Duffey
Cedar Crest NM
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 5, Issue 104
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