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Modifying A Baby Monitor - More Wattage - RF Cafe Forums
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Guest
Post subject: Modifying A Baby Monitor - More Wattage Posted:
Fri Jun 10, 2005 9:21 pm
I'm a licensed ham and I need some diagrams
or instructions on how to mod a 49 MHz baby monitor to put out more
power. It's currently at 100 mW. I'm looking to boost that up to at
least 500 mW.
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Guest
Post subject: Posted:
Fri Jun 10, 2005 9:25 pm
I hit the send button too soon.
I've got a replacement crystal that'll go in as soon as I mod it
so that it transmits in the 50 MHz band.
I'd appreciate
any input on this.
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Guest
Post subject: Baby
Monitor modificationPosted: Mon Jun 13, 2005 1:02 pm
In my experience,
baby monitors come in two varieties:
1. Discrete designs (perhaps
with some IC's)
2. Single-chip designs
In the first case,
you might be able to modify the PA stage for more power. In the second,
you probably can't do anything. That's how the FCC wants things - hard
to make mods that make them illegal for the intended use.
You
might check to see what you've got, and let us know.
Good Luck!
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Guest
Post subject: Posted: Mon Jul 04, 2005
3:32 am
I don't get what you're saying. "It's hard to make mods
that make them illegal for their intended use." What does that mean?
If it's operating under part 97 rules in ham bands then it's legal.
I can modify and homebrew anything I want as long as I follow the rules
for part 97. Now, as far as the actuall device. This thing's got a a
simple PCB board. There's no IC.
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Guest
Post
subject: Posted: Wed Jul 20, 2005 12:22 pm
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