Not necessarily. A simple low pass filter or diplexer on the output of the transmit radio should eliminate enough of the third harmonic to prevent desense.
Since it's a third harmonic issue, this should not be a problem on EO-80 or the Fox-1 satellites.
73,
Paul, N8HM
On Sat, Jul 4, 2015 at 2:45 PM, Steve Kristoff [email protected] wrote:
I have no idea if you're a teacher or not, but generally speaking, if you want to help someone learn something, you start with the easy stuff, then help them work their way up. Also, this is a hobby. Some folks may simply find it fun to work an FM satellite once in a while and sweat the fancy stuff.
Steve AI9IN P.S. Two Baofengs won't get you full-duplex because the one you use for the receiver desensitizes when you transmit with the other one.
----- Original Message ----- From: "Jim Jerzycke" [email protected] To: [email protected] Sent: Saturday, July 04, 2015 2:28 PM Subject: Re: [amsat-bb] Fox, "Easy Sats"....et al....
You're missing the point, Steve.
This is supposed to be an *educational* activity, not "Gee Look how *EASY* it is".
If you can afford one Baofeng HT, then you can afford TWO so you can run full duplex.
The FM satellites are a zoo 90% of the time. People just don't want to admit it......
Jim KQ6EA
On 07/04/2015 05:15 PM, Steve Kristoff wrote:
So, we should make them only available to the Amateur Radio elite who can afford computer tracked rotors with separate yagis and all-mode full duplex U/V radios? Keep out the riff-raff.
Steve AI9IN Riff-raff@EM79
----- Original Message ----- From: "Michael" [email protected] To: [email protected] Sent: Saturday, July 04, 2015 1:02 PM Subject: [amsat-bb] Fox, "Easy Sats"....et al....
Once again I feel the need to say that we have gone in the wrong direction by trying to convince everyone how easy a "sat" is to work with a handheld antenna. I got into satellite communication because of the technical challenge involved, not by how "easy it was". This whole half or full duplex issue is a symptom of "dumbing down" There should never be any question on it. Full duplex should ALWAYS be used. 73, Michael, W4HIJ _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Steve Kristoff [email protected]
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Steve Kristoff [email protected]
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb