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Old 06-10-2003, 04:28 AM   #1
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Post Japan Radio Systems Channel Frequencies

At our club meets we are experiencing some difficulty with registering JR radio frequencies with other frequencies.

When you buy a crystal set from a retail shop, it comes with a channel number on it such as 1,2,3,4 etc. When we match these numbers up we are experiencing that a number 2 from other manufacturers is the same as a number 4 from Japan Radio Systems. Is there a list of Japan Radio Systems Channel numbers and there respective frequencies so we can put this issue to rest.

Thanks,

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Old 06-10-2003, 07:56 AM   #2
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The Japanese Spec 27mhz band has 12 frequencies rather than the 6 we use in the U.S. so to those of us here in the U.S. a Japanese 01 crystal is like .5 an 02=1, 03=1.5, 04 =2, 05=2.5, 06=3, 07=3.5, 08=4, 09=4.5, 10=5, 11=5.5 and 12=6. I use a KO on 02 japanese crystals, so I'm on US spec channel 1. I always remember to divide the number on my japan spec crystals by two to arrive at the US spec frequency I'm on, and that's how I avoid such conflicts for myself. Of course, this only applies to 27mhz.
If your country's 27mhz band is set up like ours this is useful info, if not this post is just taking up space.
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Old 06-10-2003, 09:03 AM   #3
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Use the last three digits of the radio frequency to avoid confusion. The digits after the decimal point. European racers use the full radio frequency number to help avoid confusion.
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Old 06-10-2003, 09:20 AM   #4
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the manual I got with the Novak XXL receiver has all of the freq # and bandwidth info for all r/c including overseas, maybe try that site
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Old 06-10-2003, 12:40 PM   #5
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USA 27 MHz
RECEIVER CHANNEL FREQUENCIES
CHANNEL # FREQUENCY (MHz)
1 26.995
2 27.045
3 27.095
4 27.145
5 27.195
6 27.255

JAPAN/ASIA 27 MHz
RECEIVER CHANNEL FREQUENCIES
CHANNEL # FREQUENCY (MHz)
01 26.975
02 26.995
03 27.025
04 27.045
05 27.075
06 27.095
07 27.125
08 27.145
09 27.175
10 27.195
11 27.225
12 27.255

JAPAN/ASIA 40 MHz
RECEIVER CHANNEL FREQUENCIES
CHANNEL # FREQUENCY (MHz)
61 40.610
63 40.630
65 40.650
67 40.670
69 40.690
71 40.710
73 40.730
75 40.750

EURO 27 MHz
RECEIVER CHANNEL FREQUENCIES
CHANNEL # FREQUENCY (MHz)
04 26.995
05 27.005
06 27.015
07 27.025
08 27.035
09 27.045
10 27.055
11 27.065
12 27.075
13 27.085
14 27.095
15 27.105
16 27.115
17 27.125
18 27.135
19 27.145
24 27.195
30 27.255

EURO 41 MHz
RECEIVER CHANNEL FREQUENCIES
CHANNEL # FREQUENCY (MHz)
11 41.110
12 41.120
13 41.130
14 41.140
15 41.150
16 41.160
17 41.170
18 41.180
19 41.190
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Old 06-10-2003, 01:01 PM   #6
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Tres, as for the Euro 27mhz.
In a lot of countries, only the 6 (as US) freq are used.
Even 5, in some countries 27.255 is banned.

The extra frequencies in 27mhz 9gesides US 6), are
used by CB radio's.
Which CRYING out for interference, 4watts up to 200watts and long antennas. as opposed to our 2.5ft antenna and a 1/2 watt transmitters...

Pizza
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Old 06-10-2003, 02:56 PM   #7
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Pizza: your correct..

I was only prvoding the list as asked, how poeple use them is another story.

Most of the CB guys have low $$$ amps that splatter the band.
You can hear the same guy on 5 ch.'s around him.
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Old 06-10-2003, 03:25 PM   #8
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Yeah you're right about that.
Personnally I still have got a President Lincoln onthe attic, somwhere.
That IS spot on....

CU
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Old 06-10-2003, 05:04 PM   #9
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Quote:
Originally posted by CypressMidWest
The Japanese Spec 27mhz band has 12 frequencies rather than the 6 we use in the U.S. so to those of us here in the U.S. a Japanese 01 crystal is like .5 an 02=1, 03=1.5, 04 =2, 05=2.5, 06=3, 07=3.5, 08=4, 09=4.5, 10=5, 11=5.5 and 12=6. I use a KO on 02 japanese crystals, so I'm on US spec channel 1. I always remember to divide the number on my japan spec crystals by two to arrive at the US spec frequency I'm on, and that's how I avoid such conflicts for myself. Of course, this only applies to 27mhz.
If your country's 27mhz band is set up like ours this is useful info, if not this post is just taking up space.
It does seem that we are using the Japan Spec 27Mhz. Thanks for that.
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Old 06-11-2003, 01:48 AM   #10
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Default Frequency Printout

Thanks guys for your help.

If anyone is after a printout sheet with the different region channel frequencies, see the attachment:
Receiver Channel Frequencies.pdf


(It has been adapted from the novak manual)

Thanks again,
Attached Files
File Type: pdf receiver channel frequencies.pdf (10.2 KB, 162 views)
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