Hi Scott,

As per description given vy vendor this amp is designed to deliver 70W with an input max 5 watts !

So our hermes can over drive it ?

73s

Prem

Hi Scott, Please have a look into the PSDR display during Tune and MOX - SSB. Is this normal or else any issue ? Why I am asking is by seeing the spreaded waterfall during SSB mode TX ! Is thsi normal ? I had connected my Hermes 5-10W driver PA to a dummy load during this test. http://www.youtube.co...

Hi Scott, Thanks for advise. I could do it and work without using DDUtility. I use Virtual serial port pair also as required. Settings I use are as below: PSDR : CAT : COM13 ; Baud rate 9600 CAT + : CAT2 : COM26 ; CAT3: COM25 ; CAT3:COM24. Enable all three with selection check box. Com-0-Com : Virtu...

Hi Team,

Hopefully many have built and running Hermes and have made their 10-20W driver PA which further drive the final QRO PA.
Can you guide me to home-brew on economic driver PA between Hermes and final PA which require 5- 10W input power ?

73's

Prem, A65BK

Hi Scott,

In this case, do we need to configure virtual port pairs in Com-0-com program ? or it is not required ?
I have Com-0-com running in my PC.
Is that the reason , when I tried second cat in PSDR, it was not working and showed some error !

73s

Prem

Hi Team,

Is the details on how to use CAT-2,3 &4 in PSDR mRX available here ?
If not anyone please guide me how to use it ?
Can we replace use of DDUtil with this option ?
I need to use CAT for : WSJTX, Mini deluxe and then HRD log

73s

Prem, A65BK

Hi Scott,

please share the product link you bought.
I have one as seen in below link. but not help me to solder while viewing.

http://www.engtaobao.com/item/taobao/41885659345.html

73s

Prem

Hi Scott,

I was trying to see if any dry soldering between FPGA pins, also did a clean with solution between pins. Now it run ok !!
So it is some dry or short between FPGA pins. Let us see if the issue come again .

73s

Regards,
Prem , A65BK/VU2OLU

Hi Scott,

is there any one else who can be approached at this stage ?

Any suggestion ?

Rds, Prem

Hi Scott, Now the LED On are : LED6 (D13) - " Lights when PHY transmit ethernet traffic " LED10 (D16) - " Lights when a Hermes discovery packet reply is sent" All Five power LED and front Panel power LED Any advise on further trouble shooting on boot failure ? 73s, Prem

Hi Scott, Since the issue come even morning time try, after a long sleep at night, it is not a thermal issue !! Once it started, it will run trouble-free for hours. I did even Tx yesterday with SSB as well as FT8 digital mode. Anyone have experienced similar trouble, please share our experience in f...

Hi Scott,
I will get one ASIO supported interface.


73s,
Prem

Hi Scott,

Any trouble shooting steps to advise on this trouble ??
Now also I get this fault. Fail to boot.

Rds,
Prem

Scott,

I will be using VAC for SSB for processing my audio thru VMB and even DAW.

Rds,

Prem

Hi Team, Today I could understand the trouble with my VAC signal issue vanishes, when I changed from Windows WDM-KS to MME. With WDM-KS even after many different combination tried with various buffer setting, I could not get it working clean !! Amy be I have to spend more time ! Any suggestion on ea...

This morning without touching anything further, my Hermes started as normal. So is it anything connected to temperature ? I have fixed heat sink for FPGA, all power reg IC, LAN chip and ADC chip. A small 12V fan on top of my box which exhaust inside air out. Also holes on bottom side of box in an in...

Scott,

I use Flex 1500 and PSDR associated with Flex Radio. Then our Hermes and PSDR mRx for it. Both Run in same PC.
I think both Database talk each other and in same folder !! ??

Any particular setting to be done in PC folder or Path for Data base ??

73s

Prem

Hi All, My Hermes sometime fail to boot. When I push power switch, both front Panel LED lit steady (Status LED not blink as usual). All power LED inside Hermes lite. None of diagnosis LED lite. This I face sometimes. Later after sometime when I restart Hermes, will boot as normal. What could be wron...

Hi,

When I load my Old database which was working well with my Flex 15oo and even my Old Hermes Database, this issue got resolved !

But even after database reset and building new , this issue comes !

73s

Prem, A65BK

Hi All, My Hermes SSB signal ok with Mic plugged to front jack. but Audio not ok when I use my external B1 studio mic thru USB interface and Voice meter banana. The set up I had used earlier. Last day I reset database and these after this isssue come. Please below link for a video to see the screens...

Hi Scott, Today I replaced DAC IC U5 with new one. So happy to see that all my issued got resolved . Now _ No faulty RF out during MOX with MIC plugged and not modulating _ I get Sine wave at DAC out measured at T1 input _ Finally I measure Sinewave at RF ant out during Tune even at higher band (20m...

Hi Scott,

What you expect ? the fault in FPGA or DAC ?

Rds, Prem

Hi Scott,

I have monitored the DAC IC Data in pins from 1 to 14 and slide show video captured as below.

I have viewed waveforms on all DAC IC data pins from 1 to 14 and result captures as a slide show video as below.

http://www.youtube.com/watch?v=zD-YrjdBSKA


Rds,
Prem, A65BK

Hi

Can we conclude fault to foga or dac ?
Anything else to check ?

If nothing else can be the reason, we will try replace fpga. But how to remove it another nightmare for me

Rds

Prem

Hi Phil,

Please have a look at the Two tone test screen shots with and without DUP on.

73s,

Prem, A65BK

Hi Friends,

Now I connected my Hermes plus my 10W drive amp and work FT8 mode using WSJTX. I could work few stations.
But still I could not resolve issue with SSB signal error. I work on 20m now.

73s

Prem, A65BK

Hi Scott, So shall I do focus my further checking to FPGA and DAC ? Until we get a Sine wave at DAC out, we need not further investigate further stages beyond T1. Is it ? I have measured the signals at 20m and looks as if it is better than 1MHz. Please have a look into my below video post. http://ww...

Hi Scott, It is quite unfortunate that none else is joining the forum discussions. Finally at this stage I would request you again to help me to trace out why I get a FWD power S meter and RF power out even if I have not plugged a mic ? May be we can reach somewhere to a solution than going behind w...

Hi Scott, Connection around T1 sound good. Out from DAC is directly going to T1 primary and there 51Ohm resistor also connected . Since DAC is generating Sine wave out and we find it is not happening ! In this case will T1 and rest of components will help us ? Do you expect FPGA possible fault ? Els...

Hi Scott

What can be the minimum spec for a descent scope to buy which can cover all Hermes signal tracing ?
Which is the first point we expect a sine wave ? Is it at it at DAV ouput or T1 primary ?

Pine1 was at 1Mhz, 2 at 2 plus and so on itwas different.
Do you expect a faulty DAC IC ?

Rds. Prem