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Old July 6th 15, 01:05 AM posted to rec.radio.amateur.antenna
Jerry Stuckle Jerry Stuckle is offline
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First recorded activity by RadioBanter: Oct 2012
Posts: 1,067
Default An antenna question--43 ft vertical

On 7/5/2015 6:48 PM, Jeff Liebermann wrote:
On Sun, 05 Jul 2015 16:32:49 -0400, Jerry Stuckle
wrote:

So why don't manufacturers design transmitters with 1 ohm output
impedance, Rick? Hint: Sophomore-level AC Circuits course in virtually
any EE degree, and anyone claiming an EE degree should be able to tell why.


Actually, there are low output impedance RF power amps. They're quite
common in NMR power amps to reduce coupling between stages:

Ultra-low output impedance RF power amplifier for parallel excitation
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663597/

Ultra-low Output Impedance RF Power Amplifier Array
http://cds.ismrm.org/ismrm-2007/files/00172.pdf



We're not talking amateur transmitters, troll. Try to stay on topic -
if that's at all possible.

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