Received new Hermes Lite2 and do not get any RF output.
I did get output with Straight key but on dummy load no output now
What could be the problem ?

On Mon, Mar 6, 2023 at 08:38 PM, Gerrit. (PA3EIP) wrote:

Received new Hermes Lite2 and do not get any RF output.
I did get output with Straight key but on dummy load no output now
What could be the problem ?

Please post a screenshot here as an attachment when in the "fault" condition and we can try to help:

https://www.sdr-radio.com/screenshot

Also did you check through this?

https://www.sdr-radio.com/hermes-lite-2

73

Max

Your TUNE drive power slider appears to be set at zero. It must be adjusted separately, and WHILE IN TUNE MODE.

Greg, KC8HXO 

Hello Greg,

On Tue, Mar 7, 2023 at 02:48 PM, Gerrit. (PA3EIP) wrote:

Max,

 

See my screenshot 

Look at the Radio panel, left hand side of screen. Yes, it's in the RX DSP pane; but this contains the master Power Output slider. You have it set to Zero. This controls actual power level in the HL2 hardware.

The Drive slider in the TX DSP panel controls the IQ level. The "Drive"  slider is inoperative in CW mode. In all other modes you use this in combination with the master OP Power slider on the left.

In CW mode (key on HL2 front panel) you ONLY use the OP Power on the left "Radio panel".

See my picture and push OP Power up to Max as shown (or whatever you need).

Good luck. Oh, and please ATTACH screen shots to the message. That one is almost unreadable to me in the IO Groups web interface.

73

Max

On Tue, Mar 7, 2023 at 07:22 PM, Ian Szekeres wrote:

I am late to the party but check to make sure an output audio device has been selected within sdr console as well.  I have handed off my HL2 to my brother but I remember that being an issue for him during his setup and no tx condition.

Yes, good point Ian. SDR Console does demand a stable 48kHz audio source on the selected audio input. In your screenshot it's hard to see from the small image but you appear to be in Tune mode, yet from what I can see the Spectrum scope in the TX DSP panel is blank. This implies that you do not have an audio source on the TX DSP input. In this case you will not get a Tune signal, as shown by the blank spectrum scope in the TX DSP. 

HOWEVER even if this is the case (yes, in the picture there will certainly be NO output power)........ you should still get power out when keying the front panel jack. BUT on the front panel jack, are you 100% certain that you have the key jack plug wired correctly?

You have standing IPA on the PA transistors, so it seems the PA transistors are not faulty.

Please send another screenshot in the fault condition, so in TX, TUNE mode with OP Power set to Max, Drive set to Max, and a 48kHz audio source selected to the TX Audio input. Then ATTACH the full sized image to your response.

Another thing to try. Try the HL2 with SparkSDR. This is very easy to set up to quickly check for power output. It is worth getting to know SparkSDR a little anyway because it also has a very easy tool built in to flash new Gateware in the HL2 if needed. If you get power out in SparkSDR then it's definitely an issue with SDRC setup, which we can solve. If you can also get no power in SParkSDR then you have a hardware fault.

https://www.sparksdr.com/

73

Max

On Tue, Mar 7, 2023 at 03:54 PM, Gregory Schippers wrote:

Your TUNE drive power slider appears to be set at zero. It must be adjusted separately, and WHILE IN TUNE MODE.

Also, Gregory was quite correct. When in Tune mode, the Drive slider becomes a TUNE LEVEL slider, independent of TX Drive. It can be set to reset to Zero after a set time. In the screenshot it IS set to Zero.



So again, screenshot ATTACHED, showing TX in TUNE mode with OP Power at MAX, DRIVE at MAX. Tune waveform showing on the TX DSP Spectrum scope (so there MUST be active audio source on the selected TX Audio input). Let us see ALL of those parameters in the screenshot!

Max

Max ,

Yes i have tested on the KEY/PTT with more different CW straight keys
We have here now a power failure in the area so my Internet Router is running on UPS


I will look to it tomorrow for the settings You mention.


Manny Thanks to you all for the time spend on my problem.

Gerrit
PA3EIP

On Tue, Mar 7, 2023 at 08:30 PM, Gerrit. (PA3EIP) wrote:

Manny Thanks to you all for the time spend on my problem.

NP Gerrit. It's worth persevering as SDRC is a superb companion to HL2.

73

Max

As an attachment. The image included inline is unreadable.
{^_^}