Receive Bands and Default Step Sizes

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DaveH

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Good to see we have a real live crowd attacking this question....

Anyway I presume you want the "correct" steps as oppossed to
"defaults". Not a trivial question as I've seen some database frequencies
that were found with the wrong step for Canada e.g. 164.0375 and
169.1875. The differences boil down to the following (boundaries
are approx.):


138.000-144.000 15.0kHz
148.000-156.400 15.0kHz
162.000-174.000 15.0kHz

Dave
 

IdleMonitor

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So I'll assume then that it doesn't really matter then to use 5.0 khz steps in these ranges. All my frequencies I have in my radio all fall under what you say here anyways Dave.

What about UHF? From 410-470 I always use 12.5 khz, is the 800 mhz band that much different?

DaveH said:
Good to see we have a real live crowd attacking this question....

Anyway I presume you want the "correct" steps as oppossed to
"defaults". Not a trivial question as I've seen some database frequencies
that were found with the wrong step for Canada e.g. 164.0375 and
169.1875. The differences boil down to the following (boundaries
are approx.):


138.000-144.000 15.0kHz
148.000-156.400 15.0kHz
162.000-174.000 15.0kHz

Dave
 

DaveH

Member
Joined
Jul 29, 2001
Messages
3,283
Location
Ottawa, Ont.
IdleMonitor said:
So I'll assume then that it doesn't really matter then to use 5.0 khz steps in these ranges. All my frequencies I have in my radio all fall under what you say here anyways Dave.

What about UHF? From 410-470 I always use 12.5 khz, is the 800 mhz band that much different?
For VHF 5kHz is OK even in the Marine band (could use 12.5 or 25.0kHz there).
Using 15.0kHz in 148-156MHz is risky if you cross one of the "discontinuities" in
the pattern, which means some frequencies will always be off. For UHF and
850MHz use 12.5kHz.

Dave
 
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