HL2 band decoder

[SM7EGM]

New on HL2.
 How can I most easily get outputs that speak with which band is set, for example to select the right antenna for the band? Also looking for information on how to control a transducer On / Off based on selected frequency band 2m or 70cm. Which software works best for this need
 // Sm7egm, Ulf

[Reid Campbell]

Hi Ulf,

There is a facility to output a voltage based on the band selected but it requires a modification to the end plates and extra components added. There is also a RS232 type output which will give the current Tx frequency. Again, some modification of the end plates is required.

Could you provide more details on the On/Off transducer functionality. I'm confused by the 2m/70cm reference, as the HL2 only goes up to 10m? Are you going to use it with a transverter ?

Cheers

Reid
Gi8TME/Mi0BOT

--
You received this message because you are subscribed to the Google Groups "Hermes-Lite" group.
To unsubscribe from this group and stop receiving emails from it, send an email to hermes-lite...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/db92fd01-d98b-4cb4-90fa-adba278a36e2n%40googlegroups.com.

[SM7EGM]

The transverter must work 28/144 the frequency in / out to HL2 becomes 28 Mhz I would like to work with the Thetis program if possible. Offset 144mHz / 28mHz is set in HL2 I would like a signal when transverter mode is selected. I also plan to connect a 28/432 mHz transverter and would also like a separate signal for it so that I can change the correct relay. I can imagine detecting selection bands with an Arduino and letting it check to the correct antenna. I have not got quite right on the offset function in Thetis When I select 2m, the correct frequency is displayed on the computer that I set to offset, but when I change the frequency, something goes wrong. Sure I did not make all the settings right

// Sm7egm, Ulf

[Reid Campbell]

OK, I see what your are doing. Would you be prepared to dedicate a HL2 for your VHF/UHF solution? You could then use the control of the J16 pins to do your switching. You wouldn't need the filter board but would have to have some circuitry to decode the I2C to get your 8 outputs. That would be the cleanest solution and programming of the outputs would be via Setup|General|OC Control|VHF setup in Thetis.

Did you set the min and max frequencies as well. Just tried it and it was working but it got confused when I didn't have the frequencies set.

Cheers

Reid
Gi8TME/Mi0BOT

To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/ba854848-b215-47c4-b762-82536e5e0a54n%40googlegroups.com.

[Ulf Hansson]

Thanks Reid for the info on min / max frekv I missed it.
offset works as it should now.
I was not thinking right now to get another HL2.
I want to try different solutions first.
I also have plans for 2200m and 630m
So I need to be able to control different relays after HL2.
Maybe I will later get additional HL2 to dedicate this to transverters for 70/144/432/1296 Mhz etc

// Sm7egm, Ulf

You received this message because you are subscribed to a topic in the Google Groups "Hermes-Lite" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/hermes-lite/GLLYGtEz65I/unsubscribe.
To unsubscribe from this group and all its topics, send an email to hermes-lite...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/4569d87c-7244-3068-c716-f11e5454030a%40gmail.com.

[Reid Campbell]

The other option is to further decode the J16 pins. 3 bits could be used to control the HF LPF, one for the HPF, and that would leave the other 4 for your own use. It would mean butchering your filter board to add the extra decoding but it is an option.

Cheers

Reid
Gi8TME/Mi0BOT

[Juergen Hussels]

Hello all, 

my first post on HL2 :-)

alternatively you could use the CAT output of e.g. PowerSDR. Then interface into an Arduino, Esp, ... requires a small program, but offers plenty of possiblities. I am doing this for a LDMOS Amp.

Another method would be to use the remaining output of N2ADR's bandswitch MCP23008 (GP7) to determine if a transverter is to be switched on. E.g. in combination with J16.

best regards,

Juergen DL4JY

[Ulf Hansson]

I will try to make an application with Ardunio and see what information is sent in order to then be able to activate the appropriate relay for the selected frequency range.
Otherwise it will have to be cut in the pcb table to insert an extra bcd decoder.
I like to avoid changing the hardware if it can be solved with software and an Arduino for example
// Sm7egm, Ulf

You received this message because you are subscribed to a topic in the Google Groups "Hermes-Lite" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/hermes-lite/GLLYGtEz65I/unsubscribe.
To unsubscribe from this group and all its topics, send an email to hermes-lite...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/3ba252a2-a1df-4516-87bd-7f917b2fba08n%40googlegroups.com.

[Reid Campbell]

You should be able to remove the current I2C decoder chip and wire the Ardunio in it's place. That would be your simplest solution. You can then set Thetis OC control to send the requires pattern, for a particular band, to be decoded by the Ardunio.

Let us know how you get on.

Cheers

Reid
Gi8TME/Mi0BOT 

To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/CA%2BLfOyNYYzX9ZOk-PMqq2Q97-4qv3Bj9MPaSzMTGB3yLT7nJvg%40mail.gmail.com.

[Juergen Hussels]

Ulf, the data coming out of Powersdr via CAT to the serial interface on every change of the VFO frequency  is the information " FA000xxxxxx;" and  "FB000xxxxxxx"; the frequencies of VFO A&B.

For that auto transmit needs to be enabled (set by default).

You could poll for the frequencies, too - but then you will probably experience the same issue I ran in - the TX buffer of Powersdr is never cleared.

Juergen DL4JY 

[Reid Campbell]

Hi Juergen,

At the minute, I have no idea what would be wrong with the CAT. It's not an area that I have done any mods to in PowerSDR. You mentioned "Auto Transmit" needs to be enable - where are you seeing this control? Also what transceiver type are you asking PowerSDR to emulate. I use TS-2000.

Cheers

Reid
Gi8TME/Mi0BOT

To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/b560ec91-35d1-4d6f-9f70-680dc001591an%40googlegroups.com.

[Juergen Hussels]

Sorry,

my fault issue solved.
I don't know why, but actually it is now working as intended - I can assure that I have really tested it thoroughly. But I think it must have been an issue of my system - even though I am unware how it comes to that behaviour. I tested with an Terminal program and and 2 USB-serial adapters.

 But now - after a reboot and restart I can't reproduce the error anymore. Which is good.

Jürgen, DL4JY