For v26
gabizro opened this issue · 13 comments
v2.01.26
band FREQ Hex Address
F1 50.00000 404b4c00 0xE074
76.00000 80f77300 0xE090
F2 108.00000 80cba400 0xE078
135.99990 f684cf00 0xE094
F3 136.00000 0085cf00 0xE07C
173.99990 b6800901 0xE098
F4 174.00000 c0800901 0xE080
349.99990 b60e1602 0xE09C
F5 350.00000 c00e1602 0xE084
399.99990 f6596202 0xE0A0
F6 400.00000 005a6202 0xE088
469.99990 b629cd02 0xE0A4
F7 470.00000 c029cd02 0xE08C
600.00000 00879303 0xE0A8
sub_000014D8 define some limits?
0000150C Fmin DCD 5000000 40 4B 4C 00
00001510 Fmax DCD 60000000 00 87 93 03
sub_0000139C define band number
0 1 2 3 4 5 6
sub_00001804 TX patch
at offset 0x1810 replace 2F D2 to 5C E0
0000E074 LowLimit DCD 5000000
0000E078 DCD 10800000
0000E07C DCD 13600000
0000E080 DCD 17400000
0000E084 DCD 35000000
0000E088 DCD 40000000
0000E08C DCD 47000000
0000E090 HighLimit DCD 7600000
0000E094 DCD 13599990
0000E098 DCD 17399990
0000E09C DCD 34999990
0000E0A0 DCD 39999990
0000E0A4 DCD 46999990
0000E0A8 DCD 60000000
0000E0AC dword_E0AC DCD 6500000
0000E0B0 DCD 12200000
0000E0B4 dword_E0B4 DCD 15000000
0000E0B8 DCD 26000000
0000E0BC DCD 37000000
0000E0C0 DCD 43500000
0000E0C4 DCD 55000000
0000E0C8 dword_E0C8 DCD 32768250
0000E0CC DCD 65536625
0000E0D0 DCD 163841250
0000E0D4 DCD 833
0000E0D8 NOAA_List DCD 16255000
0000E0DC DCD 16240000
0000E0E0 DCD 16247500
0000E0E4 DCD 16242500
0000E0E8 DCD 16245000
0000E0EC DCD 16250000
0000E0F0 DCD 16252500
0000E0F4 DCD 16152500
0000E0F8 DCD 16177500
0000E0FC DCD 16327500
0000E0D4 DCD 833 may be AM bandwith someone asked?
I will try to modify "833" and see if AM somehow improves. The thing is, I don't have Air band stations to receive. I'll try anyway.
(If not I'll see where it's referenced and whether it's sent to the chip as some sort of bandwidth. Keep in mind that there is also an 8.33KHz step option in the menu, and this could be that.)
keep in mind when you make wide tx and rx that radio hardware (power amplifier and input of the receiver can not be able to support such wide range of frequencies
I will try to modify "833" and see if AM somehow improves. The thing is, I don't have Air band stations to receive. I'll try anyway.
Hi Friend!
the AM mode it's a complete disaster....
The rx sensitivity is bad. And in the audio the sound seems to be Fm mode. It doesn't seem to be AM mode. and during a reception sometimes encoded audio comes out. I can test your changes, I have many air band stations very close to me.
thanks!
the sensivity is good but high signals oversaturates input or dsp cannot process it properly. That is the problem. Average signals are properly demodulated
I agree with you,
just connect an external antenna and what you said happens... "oversaturates"
We can't demand too much from a very cheap device. ;) hehehe
I don't know how they make AM reception since BK4819 is advertised as FM only
probably they use fm demodulator for am purposes. In therory it is possible but it has weak efficiency what we hear. They probably manipulate with signal level to get best am demodulation on fm demodulator (as possible of course). IMHO Am modulation on tx is impossible in K5.
I will try to modify "833" and see if AM somehow improves. The thing is, I don't have Air band stations to receive. I'll try anyway.
Where on earth are you then? ;-/
the sensivity is good but high signals oversaturates input or dsp cannot process it properly. That is the problem. Average signals are properly demodulated
I definitely confirm that!
I am not sure if this is the place, to ask, but i did all mods and is there a certain sequence to do?
I seem not to be able to transmit. In the screen appears a message saying "NELYZA)". Not sure what that is?
And is there a CPS version that supports the mods to actually program the radio?
On installing CPS I get the windows message that the language does not compare to the wizard or anything...?
Thanks so much for all the hard work!