Transverter support?

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Lou KI5FTY

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Mar 30, 2020, 10:01:30 AM3/30/20
to Hermes-Lite
Before I head down this journey - just checking if anyone uses transverters attached to the HL2 and if there are any real challenges involved?  ie what are the gotchas if any?

Thanks

Lou KI5FTY

Walter Holmes

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Mar 30, 2020, 11:02:21 AM3/30/20
to Lou KI5FTY, Hermes-Lite
Lou,

 I am currently using 2 Hermes Lite2 boards with a pair of transverters from Q5 Signal (as liked from the Downeast Microwave group) with very excellent results. I am plenty active all over the satellites today with this configuration. I also use these on FT8 for VHF and UHF with equal success.
There are a couple minor things you have to do for this to work properly, as you need to add 1 antenna connection to HL2 on the header connector, and with PowerSDR you have to add a little text to the startup program to separate the configurations of the 2 systems, but all very minor things.
Feel free to ping me if you want any deeper details on this.
All the best, Walter/K5WH

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Lou Scalpati

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Mar 30, 2020, 11:32:01 AM3/30/20
to Walter Holmes, Hermes-Lite
Walter thanks for the info.  I noticed on the wiki " Due to filtering, there may be some attenuation in the 30 to 38.4"  have you been able to disable the filtering or is there a workaround?

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Walter Holmes

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Mar 30, 2020, 12:40:52 PM3/30/20
to Lou Scalpati, Hermes-Lite
I am not familiar with the filtering issue you mention here. Is that in the Hermes, or something else?
Walter/K5WH

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Lou Scalpati

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Mar 30, 2020, 12:53:29 PM3/30/20
to Walter Holmes, Hermes-Lite

Walter Holmes

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Mar 30, 2020, 1:16:16 PM3/30/20
to Lou Scalpati, Hermes-Lite
Not sure what is about, but I have no issues there.
Walter/K5WH

Jim, GI1CET

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Mar 30, 2020, 2:02:12 PM3/30/20
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Lou

I use a Hermes lite (deliberately built without the filters and I don't use the PA) as an IF radio for my transverter for 144MHz, this is used for EME and I have been very pleased with the results.

I certainly don't notice any issues with it.

Obvious from the above I use it with Seperate tx & rx connectors and with 0dBm to drive the transverter (G4DDK  Anglian), I do use Seperate TX & RX line up to the masthead.

Regards

Jim, GI1CET

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Jim, GI1CET

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Mar 30, 2020, 4:17:47 PM3/30/20
to Hermes-Lite
Lou

Just a follow up, reason for no filter board was I was never.going to use it as a traditional hf set.

Have attached a pic taken tonight of rx off the moon using the Hermes lite with SDR Radio Console v3 which provides excellent support for Hermes Lite and for map 65 with a direct IQ output etc.

Regards

Jim,GI1CET

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20200330_210232.jpg

Steve Haynal

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Apr 12, 2020, 11:40:16 PM4/12/20
to Hermes-Lite
Hi Group,

Hamish, OH2GAQ, has been working on a transverter for the HL2. N2ADR and I have had some private correspondence with Hamish. He has now posted his work to the public. You can find it at Full Duplex MTC:

73,

Steve
kf7o
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