Tim Ellison:

 

The "Flex3000 no output power" described in Message 2 below and your
comments led to identifying the culprit in my Flex3000 system.

 

The problem was indeed in the Audio Chain but not the Mics, which were
both Heil ProSet HC-6's. The actual problem was traced to the Heil
ProSet HC-6 Adapter cable (Yatsu Modular Headset adaptor, AD-1YM).
This is the second failure in this item in 18 months of operation, So
for my operational environment and techique this becomes a weak link
in the system.

 

Lesson learned:  Look for the simple potential failures First!

 

My thanks for the help form Tim and others who responded off-line. 

 

Everyone have a good day!

 

Wally Grantham

KI4VPD

 

Message: 2

Date: Sat, 04 May 2013 14:34:08 -0400

From: Tim Ellison <t.m.ellison...@gmail.com>

To: flexradio@flex-radio.biz

Subject: Re: [Flexradio] Flex3000 with no output power

Message-ID: <518554a0.8060...@gmail.com>

Content-Type: text/plain; charset=ISO-8859-1; format=flowed

 

A few questions. Please see them in-line below.

 

Tim Ellison

On 5/4/2013 2:04 PM, Warren & Connie Grantham wrote:

> Flexers:

> 

>   

> 

> I have a Flex-3000 purchased in Feb 2011.  The Flex3000 is a great 

> transceiver, but sometimes PowerSDR 2.3.5 is a little beyond my 

> abilities. I have the following problem and before I call Flex
support 

> I thought I would pass it by the list for comments, suggestions, and


> perhaps a fix.

> 

>   

> 

> The problem:

> 

> 1.  The output power is 0 watts.

Is this seen only on the TX FWD PWR meter or is it confirmed some
other way (no contacts, external watt meter, etc..)

> 2.  The Mic gain is set at 36.

> 3.  When using the Mic or MOX mode the reading is -30db with some

> slight variation when PTT is pressed but it quickly settles to -30
dB.

What is the TX Meter setting?  Mic or ALC?

> 

> What I have checked:

> 

> 1.  Mixer Preamp is checked and is at Maximum.

The mixer does not have a "preamp" setting.  Are you referring to the
EQ, which does or are you referring to the MIC INPUT in the Mixer?

> 2.  When the mic gain (on the Flex Display) is advanced to Max the

> mic reading is at -16 db. Output noise has increased in level.

OK.  That is what I would expect as you are putting more DSP gain into
the TX signal path.

> 3.  The Tune function provides 10 watts on forward power reading

> and is so indicated in the Setup.

This indicates that there is nothing going on with the DSP or the PA,
so the issue is most likely software configuration or mic type and
wiring issues.

> 4.  ATU appears to tune 20 - 1 into a dummy load and into a 24

> foot GP Vertical.

I do not think your antenna system is part of the issue.

> 5.  I have checked the equalizer and then is no change when

> transmit mic is enabled and moved to max.

This reinforces my assumption that you are not getting any AF signal
from the mic into the radio.

> 6.  When the equalizer Receiver preamp is increased, the output

> increases in volume.

As expected.

> 7.  I've googled this problem and checked various other items,

> including Power Supply Voltage which was 13.9 volts and temperature
at 

> 33.

> 8.  I reset the Software to Default with no change.

> 9.  I have also recently incorporated a replacement Heil ProSet

> HC-6 which worked great just prior to this problem.

Aha!  Now we are getting somewhere.  What replacement was done? Does
the headset by chance have the iC element installed?

> 10. I substituted another mic in place of the Heil and there was

> no change in the reading on the Mic output.

What type of mic?  Is it using the same mic cable as the Proset?

 

I believe that you are not getting AF gain into the radio.  If the
mics are condenser types, like the Heil iC type elements needed for
Icom radios, then they will not work with the Yaesu interface cable
because the +5 VDC mic bias is not connected.  Yaesu and FLEX radios
are expecting dynamic mic elements that do not require the mic bias
voltage, so that is why it is not wired up.  You can use a condenser
type mic element, but you will have to modify the Heil Yaesu mic
connecting cable to do so.

 

If you have not done so, reset your database to the defaults and
connect a dummy load to the FLEX-3000.  Then use Rob's W1AEX's
step-by-step procedure for setting your mic audio settings.  If you
are not seeing signal when you speak into the mic, then you are most
likely not getting signal into the radio.

> 

>   

> 

> Offline contact can be made through techin28...@embarqmail.com

> 

>   

> 

>   

> 

> Any suggestions would be greatly appreciated and my thanks in
advance.

> 

>   

> 

> Wally Grantham

> 

> KI4VPD

> 

> _______________________________________________

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> http://www.flexradio.com/

 

 

 

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