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TX power meter in HF AFSK data mode mode ??


 

Hi All,

A dumb question perhaps on the surface, but when transmitting AFSK data via the rear port of the 847
And not using CAT mode for PTT (as I gather CAT mode expects mic audio through the mic socket not?
the rear port) should I actually be seeing RF power going out on the wattmeter ? or just the?
[USB] [CAT] and [DATA] indicators please ?

set up is?

Xubuntu desktop---scu17---FT847
{Hamlib}

Tuner unplugged (tick in the box)?

* CAT function is working tuning the rig fine
* SCU-17 getting audio to the linux PC
* SCU-17 is pushing audio from linux to the 847 (verified with a double headphone adapter, and headphones
. Good levels (can nearly blow my ears off)? PC to radio.
* PTT is keying, [USB][DATA] indicators turns on,

but nothing deflecting the wattmeter even with the SCU-16 volume level at MAX , and no replies to my CQ's ;-)?

have I missed a setting perhaps?, a rig fault ? or some other overlooked factor ??

Many thanks in advance de

CQU


 

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If it's actually going into transmit, I'd check your audio path.? The meter should deflect at least a little, showing the transmit power.

Greg? KO6TH


Rob MW0CQU via groups.io wrote:

Hi All,

A dumb question perhaps on the surface, but when transmitting AFSK data via the rear port of the 847
And not using CAT mode for PTT (as I gather CAT mode expects mic audio through the mic socket not?
the rear port) should I actually be seeing RF power going out on the wattmeter ? or just the?
[USB] [CAT] and [DATA] indicators please ?

set up is?

Xubuntu desktop---scu17---FT847
{Hamlib}

Tuner unplugged (tick in the box)?

* CAT function is working tuning the rig fine
* SCU-17 getting audio to the linux PC
* SCU-17 is pushing audio from linux to the 847 (verified with a double headphone adapter, and headphones
. Good levels (can nearly blow my ears off)? PC to radio.
* PTT is keying, [USB][DATA] indicators turns on,

but nothing deflecting the wattmeter even with the SCU-16 volume level at MAX , and no replies to my CQ's ;-)?

have I missed a setting perhaps?, a rig fault ? or some other overlooked factor ??

Many thanks in advance de

CQU


 

If you're driving the radio too hard it can have a similar effect, drop your TX line out level going to the radio by 80% and see if it transmits but with low levels then gradually bring it up for a good ALC reading.
?
Doug
N7BFS


 

thanks Greg.

I figured that would be the case as effectively its still SSB just via a different pathway, but always better
to confirm with others.

audio is DEFINITELY getting to the rear of the 847 but for some reason not getting into the TX stage?

At least I now know that I should expect to see "something" and can start looking inside?

73 de CQU