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Swr / power
Posted: Fri Apr 14, 2017 3:13 pm
by kevycorsa
Looking about for a swr/power meter can't decide on one. What one's do people recommend other than a bird
cheers
Re: Swr / power
Posted: Fri Apr 14, 2017 7:13 pm
by Analyser
Daiwa.
Re: Swr / power
Posted: Fri Apr 14, 2017 10:06 pm
by Santiago
Daiwa
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Re: Swr / power
Posted: Sat Apr 15, 2017 7:04 am
by kevycorsa
What model CN101L ?
I've got a Zetagi HP500
Plugged tx into two different meters both said same wattage. Plugged into zetagi and it's about 50w out
Swr / power
Posted: Sat Apr 15, 2017 12:23 pm
by Maximus
Got an Avair. Never had a problem with it. Goes up to 400w+
Re: Swr / power
Posted: Sat Apr 15, 2017 1:46 pm
by MiXiN
I use a cross needle Avair & it's served me well for as long as I can remember.
I've also used a Daiwa 101 in the past & that was decent as well.
Re: Swr / power
Posted: Sat Apr 15, 2017 4:43 pm
by Analyser
Zetagis are rubbish, tend to be for CB so will overread.
Avairs are okay but I've heard of them melting under high power.
Daiwa are nice and any model which covers the frequency range and power level you need will be fine.
Re: Swr / power
Posted: Sun Apr 16, 2017 12:02 am
by Albert H
I've got several and none of the commercial ones perform quite as well as my homebrew job. There was an article in QST some years ago about making your own Breune Bridge. I scaled their designs for 1kW and built the thing into an Eddystone box with a large meter movement removed from a cheap, broken multimeter.
There's a rotary switch for "forward", "reverse" and "off" (which shorts the meter movement to prevent damage in transit). It cost £25 to make and has worked flawlessly for years.
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Re: Swr / power
Posted: Fri Apr 21, 2017 8:58 am
by kevycorsa
I decided to go with the daiwa cn 102L
Anyone know what the output power of this amp should be they say 200w on it but the chip is rated at 150w ?
Re: Swr / power
Posted: Fri Apr 21, 2017 9:50 am
by Albert H
You're likely to get the best part of 200 Watts out of it with the right power supply. Make sure you have a good big heatsink and that the airflow over it is plenty! If you look at the curves for the output device, you'll see that the SOAR ends close to 200 Watts. It's being pushed hard there, but it should survive if you get rid of the heat.
Re: Swr / power
Posted: Fri Sep 15, 2017 10:26 pm
by kevycorsa
I got this amp up and running finally
Tested a few times through a slim
Runs at 200w no problem