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The use of VarAC for NGO emergency response is allowed correct?

From the responses I see here it looks like many are overlooking that the Original Poster was in New Zealand. ?.... ?not subject to FCC regulations...

Hi Paul,

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I am interested in EMCOMM support for both private and public entities. However, I am puzzled by how to use Vara HF for the services using Private Land Mobile here in the US. That service is regulated by the FCC Part 90 regulations, and my reading of that section seems to indicate it allows SSB operation below 25 MHz for only voice, (J3E) not any data modes (J3D). Also, since the Vara package now capable of encryption is Vara HF, what equipment would one use for operation on PLM frequencies? It would need to be certified to Part 90 standards, I believe. Also, it seems the operation of a base station would require careful coordination with controlling agencies, as frequency assignments are based on limiting coverage to a limited geographical area so as to not create interference with other licensees using the same frequency in other areas. How would one go about getting all these conditions satisfied?
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VY 73,

Wes WB7BR

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What sort of Private Land Mobile operations use HF/SSB??? Normally, land mobile, either private/commercial, or public safety, use VHF/UHF or 800/900 MHz frequencies.

Given that today virtually all LMR activity today uses digital modulations like P25, DMR, TETRA, NXDEN, etc due to FCC narrow-banding mandate a decade ago,?? external AUDIO-based digimodes like VARA wouldn't work anyway.? With these digital radio formats, you can't just stuff audio tones from an interface or TNC into the radio's mic jack. ??
??? The radios for these digital formats normally provide their own data input jacks where the original serial data stream from the application would be combined with digitized voice into the radio's digital data transport stream. ? These types of "data" inputs are often used for GPS position data, SMS short text data for? dispatch, etc.?
??? Any encryption has to be done either by the application (email or messaging app) or in the radio's digital modulation process.? (P25 public safety radio can do this for either the digitized voice or externally-provided data for example).? [Once ANYTHING is digitized, it's really quite trivial to scramble the pattern of data bits and un-scramble them at the receiving end .]? ? "Middle-man" audio-based modulation schemes like VARA, PACTOR, etc intended to be fed into the voice channel of analog radios are completely out of the picture and irrelevant .

VHF/UHF propagation is relatively constant, making co-channel coordination predictable and practical,? On the other hand, the ever-changing and often unpredictable hour-to-hour and day-to-day long-range propagation on HF makes this kind of co-channel coordination almost pointless.

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Stephen H. Smith??? wa8lmf (at) aol.com
Skype:??????? WA8LMF
EchoLink:? Node #? 14400? [Think bottom of the 2-meter band]
Home Page:?????????

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Still unclear is how anyone will be able to use VaraHF on PLMR stations, as it seems Part 90 does not allow that mode.?
--
VY 73,

Wes WB7BR

Thanks Roy. That fits what my years of working as a tech in the PLMR field suggested. My work was limited to VHF/UHF installations, but the regs where pretty tight. I suspect the reality is that those discussing this topic here are actually providing technical support to the agency at agency installed stations. Not trying to get their own station set up to participate.
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VY 73,

Wes WB7BR

Hi Wes,
That all is controlled by the licensed entity and their license.? You would not have equipment that could operate on their licensed frequencies without their permission.? The license specifies modes, frequencies, areas of coverage, locations and number of authorized devices.
--
Roy Dugger, KD6R

I am interested in EMCOMM support for both private and public entities. However, I am puzzled by how to use Vara HF for the services using Private Land Mobile here in the US. That service is regulated by the FCC Part 90 regulations, and my reading of that section seems to indicate it allows SSB operation below 25 MHz for only voice, (J3E) not any data modes (J3D). Also, since the Vara package now capable of encryption is Vara HF, what equipment would one use for operation on PLM frequencies? It would need to be certified to Part 90 standards, I believe. Also, it seems the operation of a base station would require careful coordination with controlling agencies, as frequency assignments are based on limiting coverage to a limited geographical area so as to not create interference with other licensees using the same frequency in other areas. How would one go about getting all these conditions satisfied?
--
VY 73,

Wes WB7BR

Looks like the option appears only when you have a qualifying callsign entered in the Setup. Ham calls have only a max of two letters in prefix, encryption requires three.
--
VY 73,

Wes WB7BR

Sorry that was supposed to be private message, and I was wrong, I don't see you listed.
Send me details via winlink.org or just use my personal email via this list.
Maiko

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Good morning,

Huge improvements to the VARA support in the latest JNOS 2.0, courtesy of Michael Ford (WZ9C).

He is using this lately to regularly forward to a BPQ system on 6 meters.

There seems to be support (or the beginnings of) for VARAC as well.

This is a major revamp of the VARA code, very slick, starting to use it myself on 17m.

17m here in winnipeg is open mid mornings and mid evenings on a good

day, let me know if anyone wants to try to connect, forward, or whatever.

PS : JNOS 2.0 now has it's own IPV6 stack with tap to linux host

Maiko / VE4KLM

Tim and others,
When you want to use a UHF TRX with SSB and VARA-HF both STNS have to be EXACTLY on the same frequency!
A difference of more than 100 Hz could be that there is no connection possible.

Work around 1
When STN A press the TUNE butten (in VARA-HF), STN B can play with the RIT knob for the peak on 1500 Hz in the waterfall.
After? that this proces STN B hit the TUNE button and STN A turn on the RIT knob for 1500 Hz in the waterfall.

Work around 2
Me is told that another solution is to use VARA-SAT.
I have no experience with this solution.

The best preformance is to use VARA-FM in WIDE mode, with licence ($50?), on a FM-TRX with "9600 bd" connection.
Avoid transformers in the audio interface (external soundcard) and avoid using VOX.
After building (bad) audio-interfaces with problems I can advice you the next audio-interfaces:
Manufacture 1:
Manufacture 2:

Good luck and best '73
Peter , PE1DCD

Excellent and thanks to all that made this possible. 73 Nigel ZL2SEA

Hi Roy,
Thanks for info,
Looks like this topic got a bit of interest and we now have encryption option in VARA which is great.
All the best from NZ
73 Nigel ZL2SEA