Just checked again and actually I have HI confirmed on 6 and I worked that ZF before on 6, no QSL.
KHP
-----Original Message----- From: amsat-bb-request@amsat.org Sent: Monday, June 04, 2012 3:00 PM To: amsat-bb@amsat.org Subject: AMSAT-BB Digest, Vol 7, Issue 179
Send AMSAT-BB mailing list submissions to amsat-bb@amsat.org
To subscribe or unsubscribe via the World Wide Web, visit http://amsat.org/mailman/listinfo/amsat-bb or, via email, send a message with subject or body 'help' to amsat-bb-request@amsat.org
You can reach the person managing the list at amsat-bb-owner@amsat.org
When replying, please edit your Subject line so it is more specific than "Re: Contents of AMSAT-BB digest..."
Today's Topics:
1. Re: Icom Power Cord (Clint Bradford) 2. A great suggestion (Thomas Doyle) 3. 1K grids (Bruce) 4. Re: full duplex w/ 2 HT's (Ronald Nutter) 5. Re: full duplex w/ 2 HT's (Greg D) 6. Re: A great suggestion (Clint Bradford) 7. Re: European Lunar Lander - Call for Declarations (Stefan Wagener) 8. Re: European Lunar Lander - Call for Declarations (i8cvs) 9. Re: European Lunar Lander - Call for Declarations (Jari Koivurinne) 10. Re: full duplex w/ 2 HT's (Andrew Glasbrenner) 11. nitinol wire vs steel tape (Nick Pugh) 12. Re: full duplex w/ 2 HT's (Dobarrows) 13. Re: [CubeSat] nitinol wire vs steel tape (chantal cappelletti)
----------------------------------------------------------------------
Message: 1 Date: Sun, 3 Jun 2012 12:57:42 -0700 From: Clint Bradford clintbrad4d@earthlink.net To: amsat-bb@amsat.org Subject: [amsat-bb] Re: Icom Power Cord Message-ID: 095A1B02-67B6-40A6-AE56-2B533CEF27D9@earthlink.net Content-Type: text/plain; charset=us-ascii
I believe the IC-910 also uses the IC-OPC-657A power cord - if that helps in your searching.
Clint K6LCS
... IC-821 ...
------------------------------
Message: 2 Date: Sun, 3 Jun 2012 15:59:58 -0500 From: Thomas Doyle tomdoyle1948@gmail.com To: AMSAT-BB@amsat.org Subject: [amsat-bb] A great suggestion Message-ID: CAHnRQRKmTZgvrezjAEPOu=KW2QQmeD07=sAh_nE5+q+TbhANfQ@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1
A great suggestion was made for a simple addition to the program written for demos and education.
You can now add your own images to the little slide show that takes place in the lower right hand portion of the screen. This is a good way to personalize your presentation by including images that are of specific interest to your group or add images that for one reason or another are not included in the program.
If any group or organization would like an image added to the gallery and/or included with the program distribution just send me your request in an email with the image attached and I will try to include it. If any registered trademark or copyright issues are involved with the image simply add a line or two to your request authorizing use of the image in this application.
The updated version of the program, information on how to add your own images and a little gallery of images to try out is on the web site.
http://www.tomdoyle.org/simplesatlookdown
Have Fun - 73 W9KE Tom Doyle
------------------------------
Message: 3 Date: Sun, 3 Jun 2012 14:31:02 -0700 (PDT) From: Bruce kk5do@arrl.net To: amsat-bb@amsat.org Subject: [amsat-bb] 1K grids Message-ID: 1338759062.77954.YahooMailMobile@web180015.mail.gq1.yahoo.com Content-Type: text/plain; charset=us-ascii
Congrats to Jerry, K5OE. He just submitted his VUCC upgrade to 1,000 grids today, actually 1,008 but who's counting.
It was an easy set of cards to check. About 30 from a bunch of hams and 100 or so grids from Yuri. Not a bad haul. and... I have never worked Yuri on satellite.
73...bruce
Sent from my iPhone
------------------------------
Message: 4 Date: Sun, 03 Jun 2012 16:17:07 -0500 From: Ronald Nutter ron.nutter@networkref.com To: Robert Coppock robertinorbit@webtv.net Cc: amsat-bb@amsat.org Subject: [amsat-bb] Re: full duplex w/ 2 HT's Message-ID: 4FCBD453.3000401@networkref.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Robert:
I have used a duplexer on the UHF side of my satellite ops for several years. I find that some radios have more of a desense problem than others. Here is a link to my website where I briefly talk about what I do on portable ops and using what is referred to as a Mode J filter - http://www.ka4kyi.com/satellite_gear/misc_equipment/
Ron Nutter KA4KYI AMSAT Area Coordinator for Missouri
On 6/2/12 11:33 AM, Robert Coppock wrote:
hola, i am trying to determine the best way to work full duplex on the birds with 2 HT's or radios. i cannot find any info so far on the web. my concern is to keep the transmit power out of the receive radio, i guess basically the difference between a diplexer and duplexer. since i am efficient (lazy) i thought i would just look for suggestions here while i am checking google also. what do i need, di/du/ plexer, and what is the correct wiring scheme ? i will be using the arrow antenna without the built in duplexer, from the 2 feeds (vhf/uhf) and 2 HT's for now. my picture of it so far, is to wire the vhf radio direct to the vhf feed port on the arrow, and have the uhf port on the arrow come into a duplexer, with the duplexer uhf port going to the uhf radio, and the duplexer vhf port terminated into a 50 ohm dummy load. also, any suggestions of specific duplexers would be appreciated. i think i started on this project a few years ago, but never got around to get!
ti!
ng it all together. grazie mille, Robert k f 0 g cn81 in the woodwork, literally, shasta/klamath national forests. _______________________________________________ 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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb .
------------------------------
Message: 5 Date: Sun, 03 Jun 2012 19:45:36 -0700 From: Greg D ko6th.greg@gmail.com To: amsat-bb@amsat.org Subject: [amsat-bb] Re: full duplex w/ 2 HT's Message-ID: 4FCC2150.6050608@gmail.com Content-Type: text/plain; charset=us-ascii; format=flowed
So, all the on-line information seems to point to this solution - putting a diplexer (filter) on the 70cm side to tap off and absorb the incoming 2m signal. Isn't there also a design where one puts a filter on the 2m side, to tap off and absorb the 70 cm (3rd harmonic of 2m) signal?
I would think that any (reasonable) 70cm receiver would have enough rejection for a signal so far out of band, but the in-band 3rd harmonic can only be taken care of at its source. At least, I think that's the logic.
Is there anything worthy about the other design, or is the most common problem that our HTs can't possibly deal with a strong 2m signal on the 70cm side because of their "DC to Daylight" receivers?
I've been on the mode-J birds without much of a problem with this sort of desense, though I did have a lot of trouble on AO-40 with reflected RF when aiming through a big oak tree behind the house. The 70cm uplink was interfering with the 13cm downlink, and I was pretty sure at the time that it was a 3rd harmonic sort of problem.
Just curious,
Greg KO6TH
Ronald Nutter wrote:
Robert:
I have used a duplexer on the UHF side of my satellite ops for several years. I find that some radios have more of a desense problem than others. Here is a link to my website where I briefly talk about what I do on portable ops and using what is referred to as a Mode J filter - http://www.ka4kyi.com/satellite_gear/misc_equipment/
Ron Nutter KA4KYI AMSAT Area Coordinator for Missouri
On 6/2/12 11:33 AM, Robert Coppock wrote:
hola, i am trying to determine the best way to work full duplex on the birds with 2 HT's or radios. i cannot find any info so far on the web. my concern is to keep the transmit power out of the receive radio, i guess basically the difference between a diplexer and duplexer. since i am efficient (lazy) i thought i would just look for suggestions here while i am checking google also. what do i need, di/du/ plexer, and what is the correct wiring scheme ? i will be using the arrow antenna without the built in duplexer, from the 2 feeds (vhf/uhf) and 2 HT's for now. my picture of it so far, is to wire the vhf radio direct to the vhf feed port on the arrow, and have the uhf port on the arrow come into a duplexer, with the duplexer uhf port going to the uhf radio, and the duplexer vhf port terminated into a 50 ohm dummy load. also, any suggestions of specific duplexers would be appreciated. i think i started on this project a few years ago, but never got around to get!
ti!
ng it all together. grazie mille, Robert k f 0 g cn81 in the woodwork, literally, shasta/klamath national forests. _______________________________________________ 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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb .
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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6 Date: Sun, 03 Jun 2012 20:27:33 -0700 From: Clint Bradford clintbradford@mac.com To: AMSAT BB amsat-bb@amsat.org Subject: [amsat-bb] Re: A great suggestion Message-ID: 65DC0D43-E6E0-441C-A8FA-8E9792B44E24@mac.com Content-Type: text/plain; CHARSET=US-ASCII
Brilliant! Great program ... accurate tracking ... simple and elegant - GREAT work, Tom.
Clint Bradford K6LCS http://www.work-sat.com
------------------------------
Message: 7 Date: Mon, 4 Jun 2012 02:26:20 -0500 From: Stefan Wagener wageners@gmail.com To: i8cvs domenico.i8cvs@tin.it Cc: Amsat - BBs amsat-bb@amsat.org Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations Message-ID: CAKu8kHCN5PQZmbDjYeqWnZcarjVi2g-qRiwueQ=uKYSt-pkPfw@mail.gmail.com Content-Type: text/plain; charset=windows-1252
Thanks folks,
That's a very helpful and constructive discussion. It will certainly allow for better assessment of the feasibility, options and limitations.
Stefan, VE4NSA
On Sat, Jun 2, 2012 at 8:54 PM, i8cvs domenico.i8cvs@tin.it wrote:
Hi Peter, DB2OS
I was reading the document in particular point 2.2.2 Communication and 2.2.3 but in my opinion the Radio Hams are off side because everyting has been already designed and in my opinion there is no room available on the Lander for a Moon-Earth experimental communication transponder in our L band and S band because our antennas are too big.
Since the main 7.2 and 8.5 GHz X band High Gain Antennas of the Lander are oriented toward the Earth in a fixed position to compensate the pointing for libration probably only a 5 watt pep and a circularly polarized horn on our 10.5 GHz should be possible.
73" de
i8CVS Domenico
----- Original Message ----- From: "Peter Guelzow" peter.guelzow@kourou.de To: amsat-bb@amsat.org Sent: Sunday, June 03, 2012 12:57 AM Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Hi together,
Please also have a look at this document:
http://wsn.spaceflight.esa.int/docs/lunarlander/LunarLander_EIDA_CDI_230512. pdf
in particular see point 2.2.2 Communication and 2.2.3:
"Visibility of the Earth from the landing site imposes the following constraint: ? communications shall only be possible within a 13.7 day (TBC) window each month, and shall depend on the availability of the ground station."
further:
"the mean power available for an individual payload is expected not to exceed 20W"
73s Peter DB2OS
On 03.06.2012 00:29, Peter Guelzow wrote:
Check also this discussion from James Miller, G3RUH:
http://www.amsat.org/amsat/articles/g3ruh/110.html73s Peter, DB2OS
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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 8 Date: Mon, 4 Jun 2012 10:01:14 +0200 From: "i8cvs" domenico.i8cvs@tin.it To: "Stefan Wagener" wageners@gmail.com Cc: Amsat - BBs amsat-bb@amsat.org Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations Message-ID: 000001cd4228$79df1300$0401a8c0@b3o7f1 Content-Type: text/plain; charset="Windows-1252"
Hi Stefan VE4NSA, Peter DB2OS and folks on BB
It should be very nice to have a transponder on the Lunar Lander operating into the X/K band 10,5 GHz Uplink and 24 GHz downlink. As on AO40 the antennas are very small and probably there is room for a transponder.
For a good feasibility and assesment with ESA it would be very important to have also a 24 GHz Beacon relaying to us TLM data concerning some primary ESA experiments.
Just my idea.
73" de
i8CVS Domenico ----- Original Message ----- From: Stefan Wagener To: i8cvs Cc: Peter Guelzow ; Amsat - BBs Sent: Monday, June 04, 2012 9:26 AM Subject: Re: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Thanks folks,
That's a very helpful and constructive discussion. It will certainly allow for better assessment of the feasibility, options and limitations.
Stefan, VE4NSA
On Sat, Jun 2, 2012 at 8:54 PM, i8cvs domenico.i8cvs@tin.it wrote:
Hi Peter, DB2OS
I was reading the document in particular point 2.2.2 Communication and 2.2.3 but in my opinion the Radio Hams are off side because everyting has been already designed and in my opinion there is no room available on the Lander for a Moon-Earth experimental communication transponder in our L band and S band because our antennas are too big.
Since the main 7.2 and 8.5 GHz X band High Gain Antennas of the Lander are oriented toward the Earth in a fixed position to compensate the pointing for libration probably only a 5 watt pep and a circularly polarized horn on our 10.5 GHz should be possible.
73" de
i8CVS Domenico
----- Original Message ----- From: "Peter Guelzow" peter.guelzow@kourou.de To: amsat-bb@amsat.org Sent: Sunday, June 03, 2012 12:57 AM Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Hi together,
Please also have a look at this document:
http://wsn.spaceflight.esa.int/docs/lunarlander/LunarLander_EIDA_CDI_230512. pdf
in particular see point 2.2.2 Communication and 2.2.3:
"Visibility of the Earth from the landing site imposes the following constraint: ? communications shall only be possible within a 13.7 day (TBC) window each month, and shall depend on the availability of the ground station."
further:
"the mean power available for an individual payload is expected not to exceed 20W"
73s Peter DB2OS
On 03.06.2012 00:29, Peter Guelzow wrote:
> Check also this discussion from James Miller, G3RUH: > > http://www.amsat.org/amsat/articles/g3ruh/110.html > > > 73s Peter, DB2OS
_______________________________________________ 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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9 Date: Mon, 4 Jun 2012 11:32:38 +0300 From: "Jari Koivurinne" jari.koivurinne@aina.net To: "i8cvs" domenico.i8cvs@tin.it Cc: Amsat - BBs amsat-bb@amsat.org Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations Message-ID: e4cf25caf059daa81574d170077e930e.squirrel@webmail.aina.net Content-Type: text/plain;charset=iso-8859-1
Hi all
There is nothing much to do with 20W mean power. Just a 5W pep beacon...
-jari oh3uw
Hi Stefan VE4NSA, Peter DB2OS and folks on BB
It should be very nice to have a transponder on the Lunar Lander operating into the X/K band 10,5 GHz Uplink and 24 GHz downlink. As on AO40 the antennas are very small and probably there is room for a transponder.
For a good feasibility and assesment with ESA it would be very important to have also a 24 GHz Beacon relaying to us TLM data concerning some primary ESA experiments.
Just my idea.
73" de
i8CVS Domenico
------------------------------
Message: 10 Date: Mon, 4 Jun 2012 06:01:21 -0400 From: Andrew Glasbrenner glasbrenner@mindspring.com To: Greg D ko6th.greg@gmail.com Cc: "amsat-bb@amsat.org" amsat-bb@amsat.org Subject: [amsat-bb] Re: full duplex w/ 2 HT's Message-ID: 75438E63-EE7F-4C7E-A981-E41774EE5A15@mindspring.com Content-Type: text/plain; charset=us-ascii
Usually the diplexer as a filter is only needed to keep the 2m tx from overloading a 70cm preamp. For a two radio setup with no preamp, it usually isn't needed at all.
73, Drew KO4MA
Sent from my iPhone
On Jun 3, 2012, at 10:45 PM, Greg D ko6th.greg@gmail.com wrote:
So, all the on-line information seems to point to this solution - putting a diplexer (filter) on the 70cm side to tap off and absorb the incoming 2m signal. Isn't there also a design where one puts a filter on the 2m side, to tap off and absorb the 70 cm (3rd harmonic of 2m) signal?
I would think that any (reasonable) 70cm receiver would have enough rejection for a signal so far out of band, but the in-band 3rd harmonic can only be taken care of at its source. At least, I think that's the logic.
Is there anything worthy about the other design, or is the most common problem that our HTs can't possibly deal with a strong 2m signal on the 70cm side because of their "DC to Daylight" receivers?
I've been on the mode-J birds without much of a problem with this sort of desense, though I did have a lot of trouble on AO-40 with reflected RF when aiming through a big oak tree behind the house. The 70cm uplink was interfering with the 13cm downlink, and I was pretty sure at the time that it was a 3rd harmonic sort of problem.
Just curious,
Greg KO6TH
Ronald Nutter wrote:
Robert:
I have used a duplexer on the UHF side of my satellite ops for several years. I find that some radios have more of a desense problem than others. Here is a link to my website where I briefly talk about what I do on portable ops and using what is referred to as a Mode J filter - http://www.ka4kyi.com/satellite_gear/misc_equipment/
Ron Nutter KA4KYI AMSAT Area Coordinator for Missouri
On 6/2/12 11:33 AM, Robert Coppock wrote:
hola, i am trying to determine the best way to work full duplex on the birds with 2 HT's or radios. i cannot find any info so far on the web. my concern is to keep the transmit power out of the receive radio, i guess basically the difference between a diplexer and duplexer. since i am efficient (lazy) i thought i would just look for suggestions here while i am checking google also. what do i need, di/du/ plexer, and what is the correct wiring scheme ? i will be using the arrow antenna without the built in duplexer, from the 2 feeds (vhf/uhf) and 2 HT's for now. my picture of it so far, is to wire the vhf radio direct to the vhf feed port on the arrow, and have the uhf port on the arrow come into a duplexer, with the duplexer uhf port going to the uhf radio, and the duplexer vhf port terminated into a 50 ohm dummy load. also, any suggestions of specific duplexers would be appreciated. i think i started on this project a few years ago, but never got around to get!
ti!
ng it all together. grazie mille, Robert k f 0 g cn81 in the woodwork, literally, shasta/klamath national forests. _______________________________________________ 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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb .
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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
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! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 11 Date: Mon, 4 Jun 2012 05:47:29 -0500 From: "Nick Pugh" quadpugh@bellsouth.net To: amsat-bb@amsat.org, CubeSat@cubesat.org Subject: [amsat-bb] nitinol wire vs steel tape Message-ID: 095b01cd423f$70bfe710$523fb530$@net Content-Type: text/plain; charset="us-ascii"
Does anyone on the list know if there is any trade off using nitinol wire over steel tape for antennas on cube sats?
Thanks
nick
Office 337 593 8700
Cell 337 258 2527
Helping UL become a world Class Engineering and Educational School
------------------------------
Message: 12 Date: Mon, 4 Jun 2012 11:53:01 -0400 (EDT) From: Dobarrows dobarrows@aol.com To: amsat-bb@amsat.org Subject: [amsat-bb] Re: full duplex w/ 2 HT's Message-ID: 8CF108141285A4D-134C-12EB6@webmail-m052.sysops.aol.com Content-Type: text/plain; charset="us-ascii"
My portable setup using an arrow antenna doesn't use a diplexor or duplexor.
With the setup for 2m uplink, I connect my VX5R to the two meter driven element with a piece of RG-8X.
I connect my Icom IC R10 to the 432 mhz driven element with another piece of RG-8X. Just turn the radios on, adjust the frequencies, and wave the antenna around until you hear the satellite on the receive radio. When I transmit and I can hear my signal in the IC-R10 I know that I may be heard. If I hear someone else in the downlink, I stop transmitting and wait for another chance
Now note that my IC R10 is not a second HT, but just a receiver. You should be able to swap in a second HT for the IC R10 with no problem.
Most of the time, I use a better setup by inserting a Down East Microwave preamp between the antenna and the IC R10. The preamp improves reception on the downlink considerably. By using a receive only radio with the pre amp, I don't have to worry about accidently transmitting on 432 and burning up the pre amp. I run the preamp with two six volt lantern batteries in series.
When working a pass, I start with the receiver in usb mode and tuned about 10 mhz higher than the published downlink frequency. This helps me zero in on the satellite. When the signal gets better (the squawking noise listening to a FM signal with usb setting gets loud) I switch the receiver to FM and gradually tune down frequency to keep up with the doppler. I usually don't touch the transmit frequency on the VX 5R. I just keep it on the published downlink frequency for the whole pass.
73, W8IJ
------------------------------
Message: 13 Date: Mon, 4 Jun 2012 18:07:32 +0200 From: chantal cappelletti chantal.cappelletti@gmail.com To: Nick Pugh quadpugh@bellsouth.net Cc: amsat-bb@amsat.org, CubeSat@cubesat.org Subject: [amsat-bb] Re: [CubeSat] nitinol wire vs steel tape Message-ID: CAERGK4esKyX0nVSnQkectrUMc8WzGt5yM=bB+sEwws3yDZaicA@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1
Dear Nick. we have tried to use the Nitinol for our CubeSat but for our experience it is better to use the steel tape. If you want to have more details please contact us: gauss.group@gmail.com Thanks, Chantal
2012/6/4 Nick Pugh quadpugh@bellsouth.net:
Does anyone on the list know if there is any trade off using nitinol ?wire over steel tape for antennas on cube sats?
Thanks
nick
Office?? 337 593 8700
Cell????? 337 258 2527
Helping UL become a world Class Engineering ?and Educational School
CubeSat mailing list CubeSat@cubesat.org http://lists.cubesat.org/mailman/listinfo/cubesat