FreeDV Digital HF Voice QSO Party Apr 27/28th

Discussion in 'Amateur Radio News' started by VK5GR, Mar 2, 2019.

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  1. AA5CT

    AA5CT Ham Member QRZ Page

    re: "The issue is the frequency used for TV is weather sensitive, not the mode"

    Waiting for "the study on that". Not. Oh brother ... the myths that abound ...
  2. K4AGO

    K4AGO Ham Member QRZ Page

    The way I see it (which means absolutely nothing in the scheme of things) voice is converted to data by the software and then transmitted. Data is received and converted back to voice by the software.If I am wrong, I welcome being corrected.
  3. W0PV

    W0PV Ham Member QRZ Page

    John, I understand your perspective. But it conflicts with what is presently written into FCC Part 97 rules, where emissions designation indicate the type of information transmitted,

    §97.3 Definitions ... (c) The following terms are used in this part to indicate emission types. ...

    (2) Data. Telemetry, telecommand and computer communications emission ... D as the third symbol

    (5) Phone. Speech and other sound emissions ... E as the third symbol.

    These types of information are clarified in 47 CFR § 2.201 - Emission, modulation, and transmission characteristics.

    The short-hand official emissions designation code indicates type of information in the third character, ie, Voice via SSB = J3E.

    Digital Voice is listed in this doc as emission code F1E, another "E" mode, ie, Voice. Same as SSB.

    Therefore DV or any emission designated as third letter "E" is only permitted within FCC Part 97 Phone band segments, NOT in the sub-bands for emissions designated third letter "D" or Data.

    If DV were to be designated for BOTH Voice and/or Data, it probably should have the emissions designation third letter "W" instead.

    Perhaps it should (?) No shortage of revisions to FCC rules needed to keep pace with innovations!

    73, John, WØPV

    HEY, this week Friday night in the USA, in two days, is the FreeDV QSO Party. I will be tuning around trying it out. Hope to make some QSO's with y'all!

    Last edited: Apr 25, 2019
  4. W0PV

    W0PV Ham Member QRZ Page

    WHERE ARE ALL YOU FreeDV guys ??? It's QSO Party time!

    Listening / CQn on designated calling freq 14236 KHz.

    Also on 7180 KHz now and then.
  5. AA5CT

    AA5CT Ham Member QRZ Page

    Just had a nice QSO with WB9TLH out of Indiana on 7.175 MHz using FreeDV mode 700D ..

    Power on my end was only 50 Watts into vertical FW 40 m loop.

    We coordinated using: QSO finder here:

    I'll set to listen on 7180 kHz USB FreeDV 700D starting 8:22 AM CDT
  6. W0PV

    W0PV Ham Member QRZ Page

    Roger that - now copying K3ZA in SE PA in QSO with W4BCX in FL in 700D mode on 14236 Khz.

    Good clear copy on Tony. Can only get a few bits now and then from the FL station, as to be expected. Too bad a PY on analog SSB doing a contest stroked up right on frequency now, but Tony's signal still dominates. Quite interesting.

    I am a novice on FreeDV, so took me awhile to figure out what mode. Is 700D the de facto standard at the moment or ???
  7. AA5CT

    AA5CT Ham Member QRZ Page

    700D works better I think, and is a little narrower.
    W0PV likes this.
  8. W0PV

    W0PV Ham Member QRZ Page

    Whoa! Just made my first ever DV QSO on 14236 KHz +/- with W8MQW. Thanks Chuck!

    This stuff really does work :eek:

    Now its a PARTY :cool:
  9. KV6O

    KV6O Ham Member QRZ Page

    I am hearing a few stations, but they are all below S4, and some are pretty weak and garbled. All sound like they are on the East coast - FL and CT right now.

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