parnass@ihu1h.UUCP (Bob Parnass, AJ9S) (05/07/85)
x
Trick the Bearcat BC220 to
Search 136 - 144 MHz
Here's a trick for altering the frequency limits of the
early version of the BC220, which appears in Grove's
"The Best of 1982 Monitoring Times".
I don't have a BC220 to try this trick - does it work?
To search 136 - 144 MHz:
1. turn the set off and on to clear the memory
2. manually select any channel
3. enter 136.0 MHz
4. enter 144.0 and press LIMIT
5. press SEARCH (reads ERROR)
6. press LIMIT (reads 136.0 MHz)
7. press SEARCH
You may restrict this out of band search sequence
further once steps 1 through 7 have been executed.
While the receiver is searching, open the squelch at
whatever frequency you would like to select as the
upper search limit; then:
a. press 136.0 LIMIT
b. press SEARCH (reads ERROR)
c. press LIMIT (reads the frequency at which you
stopped searching)
d. press SEARCH and close squelch again to resume
searching
A number of frequency ranges may be substituted for the
example above, but only in the early versions of the
BC220 with the older microprocessors.
--
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Bob Parnass, Bell Telephone Laboratories - ihnp4!ihu1h!parnass - (312)979-5414