Map-65 (not IQ) no decode

[jeff, wa1hco]

I have Linrad and Map65 running with Rx about +6 dB and 0% dropped
packets. The Rx level moves around about right as I change levels.

But, Map65 doesn't decode anything and I can definitely see signals on
the waterfall.

In addition, after clicking on a spot in the band, the lower part of
the waterfall display doesn't show anything...just black.

Lastly, the terminal window show this error at the end of every
minute.
Error in iii: 49211262 49211312 49211728 1.44150768E+08
1.44151984E+08
Error in iii: 49170642 49170692 49171108 1.44031760E+08
1.44032976E+08

This problem occurs on several computers, with both windows and linux
version of Map65...so it's probably a Linrad setup problem.

What am I missing???

jeff, wa1hco.

[Joe Taylor]

Hi Jeff,

The message you are seeing means that MAP65 has not been informed
correctly about your operating frequency.

MAP65 was built for use with the WSE converters. In that context Linrad
sends the center frequency (e.g., 144.125 MHz) in the header of each
packet. On the MAP65 Setup -> Options screen you must set Fmin and Fmax
to appropriate values; I normally use something like Fmin=99, Fmax=160,
which gives MAP65 coverage from 144.099 - 144.160 MHz.

What is your center frequency? Does MAP65 know what it is? I forget
whether you are using WSE converters, or something else. If something
else, then you may need a way to tell Linrad what your "on the air"
center frequency is.

-- 73, Joe, K1JT

[jeff millar]

Thanks for the quick reply...not too much time before the June VHF and
I'm still working at it.

After setting "freq" in par_ssb_fg to 144.125, MAP65 starting showing
the high resolution waterfall.

The Rx chain here consists of a DEMI 144-28 followed by a Softrock, but
only a single chain.
The audio splits and feed two two stereo channels of a Delta 44, Linrad
reports 45 degrees.

thanks for your patience.

jeff, wa1hco