For v26

[gabizro]

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?

[Tunas1337]

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.

[Tunas1337]

(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.)

[pawol]

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

[pawol]

Tunas1337. Look at issue #7. I have explained there somewhat about 8.33

[7AAZ]

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!

[pawol]

the sensivity is good but high signals oversaturates input or dsp cannot process it properly. That is the problem. Average signals are properly demodulated

[7AAZ]

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

[gabizro]

I don't know how they make AM reception since BK4819 is advertised as FM only

[pawol]

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.

[SteefW]

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? ;-/

[SteefW]

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!

[SteefW]

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!

[ramboton]

Is there a step by step guide somewhere?

…

On Sun, Jun 11, 2023 at 2:51 PM SteefW ***@***.***> wrote: I am not sure if this is the place, 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 de mods to actually program the radio? Thanks so much for all the hard work! — Reply to this email directly, view it on GitHub <#8 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AS22IZX6GCSGE5YUE3WSHATXKY4U5ANCNFSM6AAAAAAYYEJYCU> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>