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Some interesting results from the Max Pro

 
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Some interesting results from the Max Pro
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Titanium
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Joined: 04 Aug 2003
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Post Some interesting results from the Max Pro Reply with quote
I have obtained some interesting results when testing the max pro when accompaning it with a veronica amplifier.

As some of you may know veronica amplifiers have a green led which indicates output strength, this becomes brighter in accordance to how much power is being fed through the amp and into the antenna.

Tuning the max pro when hooked up to this amp again can give you an output reading by the virtue of the fact that the green led becomes brighter the more the max pro is tuned up.


Last edited by Titanium on Fri Nov 21, 2003 1:41 pm; edited 1 time in total
Mon Oct 27, 2003 12:30 pm View user's profile Send private message
pcs
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Joined: 18 Jan 2002
Posts: 3063
Location: Radio Land

Post Reply with quote
First of all, always tune into a 50 ohm load. Do not tune with
an amplifier attached, its load could be quite a bit different from
50 ohms. Never tune any transmitter terminated into an amplifier.
Do it into a dummy load.

Second, if you're going to measure/compare power, get
a power/SWR meter.

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Marko - PCS Electronics
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Mon Oct 27, 2003 12:56 pm View user's profile Send private message Visit poster's website
Titanium
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Post Reply with quote
While tuning was being conducted the amplifier was connected to a 50 ohm balanced feed 5/8ths wave, once tuned the aerial was re-adjusted to optimum length for frequency.
- its ok to tune the max pro in this circumstance?
Mon Oct 27, 2003 1:15 pm View user's profile Send private message
pcs
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Post Reply with quote
Nope, what your antenna was is not relevant.

What is relevant is the impedance that the exciter/transmitter
"sees", and that is not antenna but the input of the amp.

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Mon Oct 27, 2003 1:21 pm View user's profile Send private message Visit poster's website
Titanium
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Post Reply with quote
Ahh ok, that makes sense, thanks for the explanation.
Mon Oct 27, 2003 1:36 pm View user's profile Send private message
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