[hpsdr] Transverter high side LO injection on PowerSDR

[Riho Bergmann]

P.S. I must say that i was wrong. You cant set "LO offset" higher than 
"Begin freq". That was the problem.
You tell to PowerSDR that you have a low side LO. PowerSDR doesn't care 
what you physically have. It just
gives you a correct IF range. Calculate low side LO, 144-28=116MHz  and 
tell to PowerSDR that:
LO offset - 116 MHz
LO Error -  0 kHz
Begin freq - 144 MHz
End freq - 148 MHz

73, GL
Riho, ES7AAZ


On 4.07.2018 13:15, Riho Bergmann wrote:
>
> Hi Tomas,
>
> I don't have any yet. I just gave you a rapid suggestion. I now played 
> XVTR setup settings a bit
> and my suggestion to you is as this example:
>
> Transverter specs:
> RF range - 144 ... 148 MHz
> LO frequency - 172 MHz
> IF range - 28 ... 32 MHz
>
> PowerSDR XVRT's setup:
> LO offset - 172 MHz
> LO Error - -4000khz (NB! minus four thousand khz  NB! which is 4 MHz 
> RF range)
> Begin freq - 144 MHz
> End freq - 148 MHz
>
> 73 es GL
> Riho, ES7AAZ
>
>
> On 4.07.2018 11:10, Tomas Krejca wrote:
>> Hi Riho,
>> thanks for the answer, just did an upgrade to 3.4.9 but the trouble 
>> persist.
>> Is there database rest or any other setup needed?
>> What Transverter (Hi side LO?) are you using?
>> 73 de OK1DXD
>> ---------- Původní e-mail ----------
>> Od: Riho Bergmann <riho.bergmann at gmail.com>
>> Komu: Tomas Krejca <ok1dxd at seznam.cz>
>> Datum: 3. 7. 2018 15:08:58
>> Předmět: Re: [hpsdr] Transverter high side LO injection on PowerSDR
>>
>>
>>     Hi,
>>
>>     try to use the latest PowesSDR 3.4.9 instead
>>     https://github.com/TAPR/OpenHPSDR-PowerSDR/releases
>>
>>     73, Riho, ES7AAZ
>>
>>
>>     On 29.06.2018 12:47, Tomas Krejca wrote:
>>
>>         ***** High Performance Software Defined Radio Discussion List *****
>>
>>
>>
>>         Hi all,
>>         I'm currently using a Hermes Lite 1 with PowerSDR v3.3.9. as
>>         IF for my UHF/SHF transverters. Everything goes well till I
>>         need to set high side LO injection :( The displayed frequency
>>         is OK, but got only a steady noise from speaker. There is a
>>         some zero beat vertical line right on the middle of the
>>         panadapter - independent on tuned frequency or antenna input.
>>
>>         The low side LO setup is working fine. I'm not sure if
>>         everything is recalculated automatically with high side LO,
>>         or do I make some manually in the setup. I was seeking for
>>         similar issues on list archive, some are really there, but 
>>         cant open it from archive due access failure.
>>
>>         I will be very grateful for any idea how to use PowerSDR this
>>         way because PowerSDR is doing an excellent job...
>>         73 de Tomas, OK1DXD
>>
>>
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>

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