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QRZ! Ham Radio 19
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QRZ Ham Radio Callsign Database - Volume 19.iso
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c160.txt
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2001-11-01
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59 lines
The modifications of Standard C160/168 for frequency spread and AM mode
-----------------------------------------------------------------------
When you buy your C-160 you can only Rx-Tx strictly between 144-146 MHz
and only FM. Frequency shift is also blocked (why?). At least European
models are like that.
To enable full features for your RIG:
- 57-392 MHz receive AM/FM (with some gaps 98-100, 177-210)
- 122-177 MHz transmit FM
- repeater using any shift
you have to desolder an SMD transistor and resolder it as a diode.
Handle with care because the SMD is small and the operation is rather
delicate.
Below is a diagram to do this (I hope it wouldn't be a problem to
understand it but this medium is fairly restrictive for graphics).
/===\ +----+ +----+
+ + /---\ +-||-+ +-||-+
| +---+ +---+ | | || ||
/-+-+---+----+---+----+---+---\ +-++----------------++-+
| | Before -> | A Z |
| CONTROL UNIT | +----------++----------+
| | ||
| | +-||-+
| | +----+
| |||||||||| |
\---\ -++++++++++- |
| -+ +- :--: |
| -+ +- :--: | +----+ +----+
| -++++++++++- :-: | +-\\-+ +----+
| |||||||||| | | | \\ /\
| :|-|: :-: | \\ \\ \
| this --> :-|-: | \\ / Z /
| transistor | After -> \\ /
| | / A \\
| /--------+ \ / \\
| |DC JACK | \/ +-\\-+
| \--------+ +----+
\-------------------------/
You'll have to reset your RIG after the modification
( F + 0, F + 3, F + 0, F + 1 )
New available functions:
- Toggle AM/FM mode: F + 0, F + 2
- Toggle input frequency starting with 100/1 MHz order: F + 0, F + 0, 8
I'm using a Standard C160 with this mod and I am very satisfied with.
73 de YO3GGH !