G'day,
I've a problem understanding the value that is returned in the
16-byte Update Data structure when in AM mode (6khz/2.4Khz bandwidth)
as described in the FT990 users manual on page 42.
The document describes the byte at offset 8 (filter) as followed:
Filter Selection
Value| IF-Filter
----------------
0 | 2.4Khz
1 | 2.0Khz
2 | 500Hz
3 | 250Hz
4 | 6Khz (AM) <------ ??????
bit 7 of this byte is set for FM Packet or Reverse RTTY.
According to the above, a value of 4 is returned whenever the transceiver
is in AM mode with a bandwith of 6Khz (no filter selected). The returned
packets that I receive back from my transceiver show the contrary. When in
AM mode, it returns a value of 0 for 6khz and a value of 4 for 2.4khz
bandwidth.
Has anyone seen this and can confirm my observations? Is this a bug
in Yaesu's firmware or perhaps a misprint in the manual?
Many thanks in advance,
73 Berndt,
VK5ABN
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