Conversion of Maxon 49-f5 to 6 meters ??

Conversion of Maxon 49-f5 to 6 meters ??

Post by Ken M. Edwar » Sat, 18 Jun 1994 09:17:24

Has anyone done/know details on converting a maxon 49-f5
transceiver to 6 m operation.  I know it has one of those
speciality PLL ICs for 49Mhz, and wondered if any homebrewer
out there has tweeked it for 6.  I would like to maintain the
earpiece "mike" on the unit and boost its output.

Thanks for any info.

 
 
 

Conversion of Maxon 49-f5 to 6 meters ??

Post by Dana Myer » Sat, 18 Jun 1994 12:30:37



Quote:>Has anyone done/know details on converting a maxon 49-f5
>transceiver to 6 m operation.  I know it has one of those
>speciality PLL ICs for 49Mhz, and wondered if any homebrewer
>out there has tweeked it for 6.  I would like to maintain the
>earpiece "mike" on the unit and boost its output.

I looked at the Tandy TRC-503 (I think). 5 sythesized channels, undoubtably
made by Maxon, like the HTX-202, and I concluded that moving it from the
designed frequencies was a pain in the butt.  The biggest problem would be
the fact that the 10.24MHz crystal used for the PLL reference timebase
is also used as the 2nd LO injection; changing this changes the 2nd LO
offset, which probably makes the radio pretty deaf. Erik Sorgatz posted
some notes suggesting success in converting these exact radios, but I'm
pretty dubious myself.

Good luck!

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 * Dana H. Myers KK6JQ, DoD#: j | Views expressed here are      *
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