Folded Dipole Dimensions
I'm trying to home-brew a pair of crossed yagis; one for 2 meters and one for 70cm but I need help with the dimensions. I want to use folded dipoles for the driven elements. What size should they be to be resonant at: 1. 145.800 MHz 2. 435.000 MHz
73 de W0HV, Jim in Raymore, MO Light travels faster than sound... This is why some people appear bright until you hear them speak.
Hi Jim, W0HV
In a separate email I have sent to you a drawing with all size and information to build a 2 meters and 70 cm folded dipole with 4/1 coax balun.
73" de
i8CVS Domenico
----- Original Message ----- From: "Reicher, James" [email protected] To: [email protected] Sent: Wednesday, August 13, 2008 9:56 PM Subject: [amsat-bb] Folded Dipole Dimensions
I'm trying to home-brew a pair of crossed yagis; one for 2 meters and one for 70cm but I need help with the dimensions. I want to use folded dipoles for the driven elements. What size should they be to be resonant at: 1. 145.800 MHz 2. 435.000 MHz
73 de W0HV, Jim in Raymore, MO
Light travels faster than sound... This is why some people appear bright until you hear them speak.
_______________________________________________ Sent via [email protected]. 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
What about the rest of us???
Jeff -- KE7ACY CN94
----- Original Message ----- From: "i8cvs" [email protected] To: "Reicher, James" [email protected]; "AMSAT-BB" [email protected] Sent: Wednesday, August 13, 2008 2:38 PM Subject: [amsat-bb] Re: Folded Dipole Dimensions
Hi Jim, W0HV
In a separate email I have sent to you a drawing with all size and information to build a 2 meters and 70 cm folded dipole with 4/1 coax balun.
73" de
i8CVS Domenico
----- Original Message ----- From: "Reicher, James" [email protected] To: [email protected] Sent: Wednesday, August 13, 2008 9:56 PM Subject: [amsat-bb] Folded Dipole Dimensions
I'm trying to home-brew a pair of crossed yagis; one for 2 meters and one for 70cm but I need help with the dimensions. I want to use folded dipoles for the driven elements. What size should they be to be resonant at: 1. 145.800 MHz 2. 435.000 MHz
73 de W0HV, Jim in Raymore, MO
Light travels faster than sound... This is why some people appear bright until you hear them speak.
_______________________________________________ Sent via [email protected]. 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 [email protected]. 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
http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=11183
Kevin N6CWF Phx Az
-------------------------------------------------- From: "Jeff Moore" [email protected] Sent: Wednesday, August 13, 2008 3:06 PM To: "AMSAT-BB" [email protected] Subject: [amsat-bb] Re: Folded Dipole Dimensions
What about the rest of us???
Jeff -- KE7ACY CN94
----- Original Message ----- From: "i8cvs" [email protected] To: "Reicher, James" [email protected]; "AMSAT-BB" [email protected] Sent: Wednesday, August 13, 2008 2:38 PM Subject: [amsat-bb] Re: Folded Dipole Dimensions
Hi Jim, W0HV
In a separate email I have sent to you a drawing with all size and information to build a 2 meters and 70 cm folded dipole with 4/1 coax balun.
73" de
i8CVS Domenico
----- Original Message ----- From: "Reicher, James" [email protected] To: [email protected] Sent: Wednesday, August 13, 2008 9:56 PM Subject: [amsat-bb] Folded Dipole Dimensions
I'm trying to home-brew a pair of crossed yagis; one for 2 meters and one for 70cm but I need help with the dimensions. I want to use folded dipoles for the driven elements. What size should they be to be resonant at:
- 145.800 MHz
- 435.000 MHz
73 de W0HV, Jim in Raymore, MO
Light travels faster than sound... This is why some people appear bright until you hear them speak.
Sent via [email protected]. 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 [email protected]. 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 [email protected]. 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
Hi folks:
I would greatly appreciate your help with using SATPC32 for a contact with the International Space Station this Tuesday. I have been using the program successfully with satellites, but it does not seem to be tracking the ISS correctly. When I use SatPC32ISS, I notice that the AOS time is 5 to 10 minutes different from what is reported on the NASA "real time" tracking web site. Since the ISS has been quiet lately, there seems to be no way for me to confirm if I'm tracking it OK. I've updated the Keps through the main program's "Satellites" menu.
I thought that I would have a little more time to work on this, but they just moved us up in the schedule!
Any advice would be most helpful.
Ken, N6KTH
If you have been doing comparisons today, your keps are old. The ISS did a major reboost early today and that will cause your times to be off. It will take a bit for the predicts to catch up but you need to have the latest keps downloaded for the day of the contact.
If you download a new set this weekend, you should see the predicts line up with the live NASA telemetry.
Kenneth - N5VHO
________________________________
From: [email protected] on behalf of Ken Owen Sent: Wed 8/13/2008 5:40 PM To: 'AMSAT-BB' Cc: [email protected] Subject: [amsat-bb] SATPC32 support for upcoming ARRIS Contact
Hi folks:
I would greatly appreciate your help with using SATPC32 for a contact with the International Space Station this Tuesday. I have been using the program successfully with satellites, but it does not seem to be tracking the ISS correctly. When I use SatPC32ISS, I notice that the AOS time is 5 to 10 minutes different from what is reported on the NASA "real time" tracking web site. Since the ISS has been quiet lately, there seems to be no way for me to confirm if I'm tracking it OK. I've updated the Keps through the main program's "Satellites" menu.
I thought that I would have a little more time to work on this, but they just moved us up in the schedule!
Any advice would be most helpful.
Ken, N6KTH
_______________________________________________ Sent via [email protected]. 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
OK, I guess I must just be having trouble getting the current Keps. The software and tracking system is working perfectly with the satellites.
N6KTH
_____
From: Ransom, Kenneth G. (JSC-OC)[BAR] [mailto:[email protected]] Sent: Wednesday, August 13, 2008 4:35 PM To: Ken Owen; AMSAT-BB Cc: [email protected] Subject: RE: [amsat-bb] SATPC32 support for upcoming ARRIS Contact
If you have been doing comparisons today, your keps are old. The ISS did a major reboost early today and that will cause your times to be off. It will take a bit for the predicts to catch up but you need to have the latest keps downloaded for the day of the contact.
If you download a new set this weekend, you should see the predicts line up with the live NASA telemetry.
Kenneth - N5VHO
_____
From: [email protected] on behalf of Ken Owen Sent: Wed 8/13/2008 5:40 PM To: 'AMSAT-BB' Cc: [email protected] Subject: [amsat-bb] SATPC32 support for upcoming ARRIS Contact
Hi folks:
I would greatly appreciate your help with using SATPC32 for a contact with the International Space Station this Tuesday. I have been using the program successfully with satellites, but it does not seem to be tracking the ISS correctly. When I use SatPC32ISS, I notice that the AOS time is 5 to 10 minutes different from what is reported on the NASA "real time" tracking web site. Since the ISS has been quiet lately, there seems to be no way for me to confirm if I'm tracking it OK. I've updated the Keps through the main program's "Satellites" menu.
I thought that I would have a little more time to work on this, but they just moved us up in the schedule!
Any advice would be most helpful.
Ken, N6KTH
_______________________________________________ Sent via [email protected]. 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
The correct link should be:
http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=4323
Jeff -- KE7ACY CN94
----- Original Message ----- From: "Kevin" [email protected]
http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=11183
Kevin N6CWF Phx Az
-------------------------------------------------- From: "Jeff Moore" [email protected]
What about the rest of us???
Jeff -- KE7ACY CN94
----- Original Message ----- From: "i8cvs" [email protected] To: "Reicher, James" [email protected]; "AMSAT-BB" [email protected] Sent: Wednesday, August 13, 2008 2:38 PM Subject: [amsat-bb] Re: Folded Dipole Dimensions
Hi Jim, W0HV
In a separate email I have sent to you a drawing with all size and information to build a 2 meters and 70 cm folded dipole with 4/1 coax balun.
73" de
i8CVS Domenico
Hi folks:
Can you display the "blue marble" maps in SatPC32ISS (note: the ISS program)? There is no BM/PI button on the ISS program.
Thanks,
Ken, N6KTH
Ken,
You are right that there is no button, and it does not seem to "inherit" the setting from the main program. _Apparently_ not.
Alan
Hi Jeff, KE7ACY
I can send a copy to everyone is interested on it and send a request off line
73" de
i8CVS Domenico
----- Original Message ----- From: "Jeff Moore" [email protected] To: "AMSAT-BB" [email protected] Sent: Thursday, August 14, 2008 12:06 AM Subject: [amsat-bb] Re: Folded Dipole Dimensions
What about the rest of us???
Jeff -- KE7ACY CN94
----- Original Message ----- From: "i8cvs" [email protected] To: "Reicher, James" [email protected]; "AMSAT-BB"
Sent: Wednesday, August 13, 2008 2:38 PM Subject: [amsat-bb] Re: Folded Dipole Dimensions
Hi Jim, W0HV
In a separate email I have sent to you a drawing with all size and information to build a 2 meters and 70 cm folded dipole with 4/1 coax balun.
73" de
i8CVS Domenico
----- Original Message ----- From: "Reicher, James" [email protected] To: [email protected] Sent: Wednesday, August 13, 2008 9:56 PM Subject: [amsat-bb] Folded Dipole Dimensions
I'm trying to home-brew a pair of crossed yagis; one for 2 meters and one for 70cm but I need help with the dimensions. I want to use folded dipoles for the driven elements. What size should they be to be resonant at:
- 145.800 MHz
- 435.000 MHz
73 de W0HV, Jim in Raymore, MO
Light travels faster than sound... This is why some people appear bright until you hear them speak.
Sent via [email protected]. 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 [email protected]. 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 [email protected]. 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
participants (7)
-
Alan P. Biddle -
i8cvs -
Jeff Moore -
Ken Owen -
Kevin -
Ransom, Kenneth G. (JSC-OC)[BAR] -
Reicher, James