Mark,
I saw an increase in signal strength on mine from S2 to S9
Now the signal to noise did not change that much, ever so slightly.
----- Original Message ----- From: Mark Lunday, WD4ELG To: [email protected] ; [email protected] Sent: Sunday, December 21, 2008 9:55 AM Subject: [amsat-bb] Re: Another newbie question
Thanks, Alan.
I double-checked the coax connections and those are good.
Will double-check power and the pins. I was wondering if it was just my hearing that was going.
Mark Lunday WD4ELG [email protected] http://wd4elg.net
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Alan P. Biddle Sent: Saturday, December 20, 2008 6:47 PM To: [email protected] Subject: [amsat-bb] Re: Another newbie question
Mark,
You should see a significant jump in signal strength if everything is working correctly. On FM you will hear little or no change in background noise, but in SSB that should be very apparent.
Two things to check. The first is to make certain you have the antenna and feed line going to the right connections. It sounds obvious, but many have gotten them backwards. Best not to transmit through it that way. ;)
The other is whether the DC voltage is getting to the unit. Power using the coax, or separate DC power cable?
If the first, make certain you are getting 12 volts from your rig. Check for 12 volts DC on the rig (or bias T) antenna jack, and that you have a DC connection to the unit. Most TX amps have capacitive coupling which will block the DC. Verify 12 volts at the antenna feed at the unit.
If the second, check 12 volts to the connector at the unit, and that it is going to the right pins. It is possible to make up a little test jig with a multimeter and check the current draw.
Good luck, and let us know what you find.
Alan WA4SCA
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_______________________________________________ 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
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