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CX2SA > SATDIG 30.10.09 21:06l 653 Lines 20145 Bytes #999 (0) @ WW
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Today's Topics:
1. WBFM with the ICOM: IC706MK2 and G, IC-703+ (Stan, W1LE)
2. Re: WBFM with the ICOM: IC706MK2 and G, IC-703+
(Iain Young, G7III)
3. Re: WBFM with the ICOM: IC706MK2 and G, IC-703+ (Stan, W1LE)
4. Small Mode-UV Linear Transponder Website (William Leijenaar)
5. Re: using a microsat as a potential high altitudeVHFreflector
(i8cvs)
6. Re: Small Mode-UV Linear Transponder Website (Rocky Jones)
7. Re: Small Mode-UV Linear Transponder Website (Idle-Tyme)
8. Re: WBFM with the ICOM: IC706MK2 and G, IC-703+ (Jonathan Guthrie)
9. Re: Yaesu G 5400 elevation rotator quit working (i8cvs)
10. AO-51 mode VS success at 5 degrees (Greg D.)
11. Re: Yaesu G 5400 elevation rotator quit working (Henk, PA3GUO)
12. Yaesu G-5500 azimuth and elevation resistor pots
(Mark L. Hammond)
13. Re: Yaesu G-5500 azimuth and elevation resistor pots (Alan VE4YZ)
----------------------------------------------------------------------
Message: 1
Date: Thu, 29 Oct 2009 15:32:55 -0400
From: "Stan, W1LE" <stanw1le@xxxxxxx.xxx>
Subject: [amsat-bb] WBFM with the ICOM: IC706MK2 and G, IC-703+
To: amsat-bb@xxxxx.xxx
Message-ID: <4AE9EDE7.9030606@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello The Net:
Can some one confirm that the IC-706MK2 and the 706MK2G
can both handle WBFM in the 6M and 2M ham bands ?
Objective is to use this rig as an RX IF with a 2.4 GHz down converter
and have enough detected BW for a Multi7 TNC to decode the 2.4 GHz sats.
As I recall the IC-703+ can not do any WBFM.
Thanks Stan, W1LE FN41sr Cape Cod
------------------------------
Message: 2
Date: Thu, 29 Oct 2009 19:53:16 +0000
From: "Iain Young, G7III" <g7iii@xxxxx.xxx>
Subject: [amsat-bb] Re: WBFM with the ICOM: IC706MK2 and G, IC-703+
To: "Stan, W1LE" <stanw1le@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4AE9F2AC.20201@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi Stan,
Stan, W1LE wrote:
> Hello The Net:
>
> Can some one confirm that the IC-706MK2 and the 706MK2G
> can both handle WBFM in the 6M and 2M ham bands ?
>
> Objective is to use this rig as an RX IF with a 2.4 GHz down converter
> and have enough detected BW for a Multi7 TNC to decode the 2.4 GHz sats.
I'm afraid I can't help with the 706's, but I'm curious about the
Multi7 TNC, since I don't think I've ever heard of it.
I tried a google search, and came up empty. Is there a web page
somewhere describing it. Is it still available somewhere ?
73s
Iain
------------------------------
Message: 3
Date: Thu, 29 Oct 2009 16:15:02 -0400
From: "Stan, W1LE" <stanw1le@xxxxxxx.xxx>
Subject: [amsat-bb] Re: WBFM with the ICOM: IC706MK2 and G, IC-703+
To: "Iain Young, G7III" <g7iii@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4AE9F7C6.4090009@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello Ian and The Net:
TNC7Multi or TNC-7Multi is a better description for a google search
I got mine from WIMO.
Base unit is a dual speed TNC for 1K2 and 9K6 Bd with RS-232 AND USB
serial ports
A optional modem is available for 38.4K bd.
A little smaller than 2 packs of cigarettes
Stan, W1LE Cape Cod FN41sr (almost in FN51)
Iain Young, G7III wrote:
> Hi Stan,
>
> Stan, W1LE wrote:
>> Hello The Net:
>>
>> Can some one confirm that the IC-706MK2 and the 706MK2G
>> can both handle WBFM in the 6M and 2M ham bands ?
>>
>> Objective is to use this rig as an RX IF with a 2.4 GHz down converter
>> and have enough detected BW for a Multi7 TNC to decode the 2.4 GHz sats.
>
> I'm afraid I can't help with the 706's, but I'm curious about the
> Multi7 TNC, since I don't think I've ever heard of it.
>
> I tried a google search, and came up empty. Is there a web page
> somewhere describing it. Is it still available somewhere ?
>
>
> 73s
>
> Iain
>
------------------------------
Message: 4
Date: Thu, 29 Oct 2009 14:41:41 -0700 (PDT)
From: William Leijenaar <pe1rah@xxxxx.xxx>
Subject: [amsat-bb] Small Mode-UV Linear Transponder Website
To: amsat-bb@xxxxx.xxx
Message-ID: <875336.6972.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi AMSATs,
For the interrested people,
I made some website with more technical information of my small linear
transponder design.
It can be found at:
www.leijenaarelectronics.nl
73 de PE1RAH
William Leijenaar
---
------------------------------
Message: 5
Date: Thu, 29 Oct 2009 23:08:29 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: using a microsat as a potential high
altitudeVHFreflector
To: "andy thomas" <andythomasmail@xxxxx.xx.xx>, "amsat"
<amsat-bb@xxxxx.xxx>
Message-ID: <002201ca58e4$58d19b40$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "andy thomas" <andythomasmail@xxxxx.xx.xx>
To: "amsat" <amsat-bb@xxxxx.xxx>
Sent: Thursday, October 29, 2009 11:04 AM
Subject: [amsat-bb] Re: using a microsat as a potential high
altitudeVHFreflector
> I still think that a large unfolded and/or (partially?) inflatable
structure of reflective material structured as resonant reflectors could be
an interesting passive reflector of ham frequencies if it was placed on the
Moon. It would be easier than a powered active repeater.
>
> I know about moonbounce obviously and the laser system left behind by
Apollo.
>
> 73 de andy G0SFJ
>
Hi Andy, G0SFJ
I have many doubts about your idea because the surface of the moon
as seen as a radar target is large as 9.45 x 10^12 square meters and is
isotropically backscatterig only the 7% of the power of radio waves
incident over it for the frequencies ranging from 144 to 1296 MHz
Actually EME is made under the above conditions like the moon was
large only 9.45 x 10^12 x 0.07 = 6.615 x 10^11 square meters but
made with a material totally reflecting isotropically the 100 % of power
incident over it.
If now we assume that hypothetically you can put over the moon a
passive inflatable structure of reflective material with 100 % of
reflectibility then to made EME with the same actual moon-bounce
results the above inflatable surface would be made large as
6.615 x 10^11 square meters i.e. it's impossible.
If such thing would be possible the diameter of the above inflatable
structure if placed at the distance earth-moon it would be seen in the
sky sottending an angle of 0.14 degrees but actually the moon is
sottending 0.5 degrees so that imagine how big would be the above
inflatable reflector on the moon and figure out if it would be easier
to made instead to use a powered active repeater.
73" de
i8CVS Domenico
------------------------------
Message: 6
Date: Thu, 29 Oct 2009 17:43:15 -0500
From: Rocky Jones <orbitjet@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Small Mode-UV Linear Transponder Website
To: <pe1rah@xxxxx.xxx>, Amsat BB <amsat-bb@xxxxx.xxx>
Message-ID: <COL106-W354011F2B318B6FE4FD63FD6B70@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
William. very impressive site and technical work. If I were King AMSAT NA
would be using what you have built.
Robert WB5MZO
> Date: Thu, 29 Oct 2009 14:41:41 -0700
> From: pe1rah@xxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Small Mode-UV Linear Transponder Website
>
> Hi AMSATs,
>
> For the interrested people,
> I made some website with more technical information of my small linear
transponder design.
>
> It can be found at:
> www.leijenaarelectronics.nl
>
> 73 de PE1RAH
> William Leijenaar
> ---
>
>
>
> _______________________________________________
> 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
_________________________________________________________________
Windows 7: Simplify your PC. Learn more.
http://www.microsoft.com/Windows/windows-7/default.aspx?ocid=PID24727::T:WLMTA
GL:ON:WL:en-US:WWL_WIN_evergreen1:102009
------------------------------
Message: 7
Date: Thu, 29 Oct 2009 18:24:53 -0500
From: Idle-Tyme <nss@xxx.xxx>
Subject: [amsat-bb] Re: Small Mode-UV Linear Transponder Website
To: Rocky Jones <orbitjet@xxxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>, pe1rah@xxxxx.xxx
Message-ID: <4AEA2445.6030708@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I wish I could fly one of those on one of our balloon missions. We have
done all sorts of flights 48 so far with 100% recovery rate. and many
have been FM crossband repeaters. but have always wanted to fly
something linear like this but never been able to make it up. This
would be awesome to have crusing at 100,000 feet!
Joe WB9SBD Near Space Sciences
*The Original Rolling Ball Clock
http://www.idle-tyme.com*
<http://www.idle-tyme.com>
Rocky Jones wrote:
> William. very impressive site and technical work. If I were King AMSAT
NA would be using what you have built.
>
> Robert WB5MZO
>
>
>> Date: Thu, 29 Oct 2009 14:41:41 -0700
>> From: pe1rah@xxxxx.xxx
>> To: amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] Small Mode-UV Linear Transponder Website
>>
>> Hi AMSATs,
>>
>> For the interrested people,
>> I made some website with more technical information of my small linear
transponder design.
>>
>> It can be found at:
>> www.leijenaarelectronics.nl
>>
>> 73 de PE1RAH
>> William Leijenaar
>> ---
>>
>>
>>
>> _______________________________________________
>> 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
>>
>
> _________________________________________________________________
> Windows 7: Simplify your PC. Learn more.
>
http://www.microsoft.com/Windows/windows-7/default.aspx?ocid=PID24727::T:WLMTA
GL:ON:WL:en-US:WWL_WIN_evergreen1:102009
> _______________________________________________
> 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
>
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.423 / Virus Database: 270.14.38/2467 - Release Date: 10/29/09
07:38:00
>
>
------------------------------
Message: 8
Date: Thu, 29 Oct 2009 19:52:37 -0500
From: Jonathan Guthrie <ka8kpn@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: WBFM with the ICOM: IC706MK2 and G, IC-703+
To: "Stan, W1LE" <stanw1le@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <20091030005237.GA9385@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On Thu, Oct 29, 2009 at 03:32:55PM -0400, Stan, W1LE wrote:
> Can some one confirm that the IC-706MK2 and the 706MK2G
> can both handle WBFM in the 6M and 2M ham bands ?
> Objective is to use this rig as an RX IF with a 2.4 GHz down converter
> and have enough detected BW for a Multi7 TNC to decode the 2.4 GHz sats.
> As I recall the IC-703+ can not do any WBFM.
I was going to respond to this this afternoon, but I realized I'd only used
WBFM to listen to FM broadcast band signals, so I waited to get home to try
it. My IC-706MKIIG does will go into WFM mode in both 6 and 2 meters.
Whether that's what you need or not, I can't say.
------------------------------
Message: 9
Date: Fri, 30 Oct 2009 03:44:53 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Yaesu G 5400 elevation rotator quit working
To: "John" <jcrowell@xxxxxxxxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <002a01ca590a$f57aef20$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "John" <jcrowell@xxxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, October 28, 2009 3:50 AM
Subject: [amsat-bb] Yaesu G 5400 elevation rotator quit working
> My Yaesu G 5400 Elevation rotator decided to quit working Friday morning.
>
> I could press the up and down buttons and hear the motor running but the
> antennas would not move.
>
> After being gone out of town for two days, I decided to try it again
> Sunday night.
>
> And to my amazement, it worked. The antenna moved.
>
> Anybody have any clues as to why this happens and what to do to fix it?
>
> Thanks,
>
> John C.
>
> KE5GFJ
>
> Pampa, Texas
>
Hi John, KE5GFJ
You probably are in trouble with the Elevation rotator for the following
reason :
Each bearing is composed by 20 ball bearings size 0.312 ( 5/16 inch ) and
a bearing holder.
One groove for the balls is casted into the aluminum boom shaft tube and
the other groove is casted into the aluminum rotor housing
The bearing holder is a stainless steel toothed ring with 20 teeths and
the purpose of it is to keep the 20 balls separated each other while holding
the lubricant grease between them and lubricate the grooves during rotation
preventing in addition the wather to enter the rotor housing from the
outside.
The problem here is that the balls are not in contact-to-contact each other
but they are separated each other by the teeths of the bearing holder in
the sequence O-O-O-O-O-O-O............ and so on.
In this condition the vertical radial force generated by the weight of the
antennas is not completely absorbed by the balls but is applied as well
over the teeths of the bearing holder and so the 20 balls will be forced to
separate away one from the other.
The load of the antennas is responsible to wear out, to deform and to cut
the teeths of the bearing holder but as soon only one or two teeths are
broken then the distance between the balls increases so that the big
assembly tube gear has room to fall down a little bit into the grooves.
In this condition the distance between the assembly tube gear and the
internal pinion increases up to a point that to engage the big assembly
tube gear into the pinion fails.
If this is your case the motor runs in both directions but when the wear is
at the beginning than the antennas becomes stuck time to time.
To cure this problem and prevent damages to pinion and to the assembly
tube gear I have removed the bearing holder and I have filled the grooves
with black molibden grease adding in it I do not remember exacly if two
or tree more balls of same size and this was made in order to replace the
room originally occuped by the teeths of the bearing holder.
My modified rotator without the bearing holders and more balls is actually
running with no problems from several years now.
73" de
i8CVS Domenico
------------------------------
Message: 10
Date: Thu, 29 Oct 2009 20:15:03 -0700
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] AO-51 mode VS success at 5 degrees
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BLU133-W2052F98B552E7EA55E6BF8A9B60@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Drew,
If you're still interested in mode VS signal reports, I just worked KG6NUB
at 5 degrees elevation. He was pretty much full quieting on the 2.4 ghz
downlink here in CM98, and reports he was using an arrow antenna with his HT
out on the lawn in CM87 on his end (presumably running mode VU). Nice job,
both of you!
Greg KO6TH
_________________________________________________________________
New Windows 7: Find the right PC for you. Learn more.
http://www.microsoft.com/windows/pc-scout/default.aspx?CBID=wl&ocid=PID24727::
T:WLMTAGL:ON:WL:en-US:WWL_WIN_pcscout:102009
------------------------------
Message: 11
Date: Fri, 30 Oct 2009 07:53:04 +0100 (CET)
From: "Henk, PA3GUO" <hamoen@xxx.xx>
Subject: [amsat-bb] Re: Yaesu G 5400 elevation rotator quit working
To: <amsat-bb@xxxxx.xxx>
Message-ID: <1610.92.68.117.17.1256885584.squirrel@xxxxxxx.xxx.xx>
Content-Type: text/plain; charset=iso-8859-1
Hi John,
To complement the description of Domenico, here is how my KR500
looked like from inside (picture 5&6):
http://www.pa3guo.com/kr500.html
I did clean it & apply greece over the balls. A photo of that
greece (the brand) you get when you go to http://www.pa3guo.com
and click on Rotors, then scroll down.
Not sure if my problem was your problem. What you describe
is different, mine was simply stuck. Anyway, all these rotors
need some treatment :-) Mine worked fine since then (6 years now).
Succes,
Henk, PA3GUO
------------------------------
Message: 12
Date: Fri, 30 Oct 2009 10:51:09 -0400
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Yaesu G-5500 azimuth and elevation resistor pots
To: amsat-bb@xxxxx.xxx
Message-ID:
<5d8cecfe0910300751uf33e2d4nad4628fb3d52bb45@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hello All,
We really need a FAQ section on the AMSAT web page for the Yaesu az/el units
:)
Anyhow, here's my question: Are the G-5500 azimuth and elevation
resistor pots the same or different?
Does anybody have the replacement part(s) number (s) handy--either
from Vertex/Yaesu or another supplier?
My azimuth pot is going bad.
Thanks,
--
Mark L. Hammond [N8MH]
------------------------------
Message: 13
Date: Fri, 30 Oct 2009 10:18:39 -0500
From: "Alan VE4YZ" <ve4yz@xxx.xxx>
Subject: [amsat-bb] Re: Yaesu G-5500 azimuth and elevation resistor
pots
To: "'Mark L. Hammond'" <marklhammond@xxxxx.xxx>,
<amsat-bb@xxxxx.xxx>, "'i8cvs'" <domenico.i8cvs@xxx.xx>
Message-ID: <8203149F7C4C4B84B551CF3FDAFA1678@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
The pots are the same as the G5400b AZ and EL - 500 ohm 360 degree.
They are also metric but if a suitable wire wound precision pot is found
there is sufficient material in the gear hub to be drilled out. The Allen
screw is also metric. 1.5mm Allen key required
See URL below for some close ups of the G5400B - similar to the 5500 except
for location of the phasing capacitor and limit switches in the AZ.
http://picasaweb.google.com/ve4yz.alan/RotatorRebuild2009#
If a sealed precision wire wound pot can be found that does not have that
limiting looping wire to the center, I would be interested in a group buy to
have one or 2 spares on hand for the next rebuilt and greasing.
Domenico gave me part numbers last year but when I got a quote they were
hugely expensive but they fit my requirement of total enclosed, wire wound
and precision.
>From a Sept 2008 email from Domenico:
Here are many wire wound linear potentiometers that can be adapted.
http://www.potentiometers.com/select_precision.cfm?session_num=2008091501464
233
The models belove seems to be the best candidates because they are totally
encapsulated wirewound and 360? continuous rotation.
http://www.potentiometers.com/Series5100.cfm?session_num=2008091501464
http://www.potentiometers.com/Series5400.cfm?session_num=2008091501464
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx
> [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Mark L. Hammond
> Sent: October 30, 2009 9:51 AM
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Yaesu G-5500 azimuth and elevation resistor pots
>
> Hello All,
>
> We really need a FAQ section on the AMSAT web page for the
> Yaesu az/el units :)
>
> Anyhow, here's my question: Are the G-5500 azimuth and elevation
> resistor pots the same or different?
>
> Does anybody have the replacement part(s) number (s)
> handy--either from Vertex/Yaesu or another supplier?
>
> My azimuth pot is going bad.
>
> Thanks,
>
> --
> Mark L. Hammond [N8MH]
> _______________________________________________
> 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 member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 579
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