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Author Topic: 7800 low power  (Read 1201 times)

kablooie

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7800 low power
« on: December 03, 2014, 01:14:51 AM »
scored a yaesu 7800 off ebay... "brand new"
prior owner bought it in 2004 and never used it.  i've been reading more about it and it seems like it was/is a known issue that the 7800 was putting out less watts than advertised by yaesu.

#1) how can i check the wattage output, especially without having my license yet.

#2) if it lower and needs tweaking, any suggestions or ideas?

thanks,
louie

msgt53

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Re: 7800 low power
« Reply #1 on: December 03, 2014, 06:47:25 PM »
Using a wattmeter and a dummy load

cockpitbob

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Re: 7800 low power
« Reply #2 on: December 04, 2014, 01:58:47 PM »
Yes, transmitting into a dummy load is OK without a license.

I wouldn't worry about the power being low unless it is half the advertised power.  Remember, every step on the S-meter is a 4:1 change.  So if that 50W rig is only putting out 25W your signal will be less than 1/2 an S-unit low.  Nothing to worry about.

Luigi

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Re: 7800 low power
« Reply #3 on: December 04, 2014, 08:35:47 PM »
I had someone call back on cw when I was testing a dummy load.
Luigi

Lamewolf

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Re: 7800 low power
« Reply #4 on: January 24, 2015, 10:24:55 AM »
I had someone call back on cw when I was testing a dummy load.
Luigi

I've done that too !