[amsat-bb] Modulation levels on AO-85
Mike Diehl
diehl.mike.a at gmail.com
Tue Aug 15 02:14:02 UTC 2017
I'm not entirely convinced of that. I have at least a dozen QSLs in LOTW that have no frequency for both the up and downlink. However, as we all know, LOTW does have some "undocumented features". Maybe there's some corner case where it does matter but I haven't ran into it yet.
73,
Mike Diehl
AI6GS
> On Aug 14, 2017, at 6:42 PM, Frank Westphal <k6fw1 at verizon.net> wrote:
>
> My experience with LOTW and SAT QSO's is the frequency does matter. I have had to fool my logging program to upload the uplink frequency to get a match on a rare occasion. N5JB's guide to LOTW and satellite QSO's says 7 items must match to get a satellite verification in LOTW. Only 5 items need to match for a non-satellite QSO.
>
> 73,
> Frank
> K6FW
>
>> On 8/14/17 6:30 PM, Paul Stoetzer wrote:
>> The convention in logging split band or mode QSOs is to use what band or mode you're transmitting on.
>>
>> That said, LoTW doesn't care about the frequencies if the propagation mode is set to 'SAT'
>>
>> 73,
>>
>> Paul, N8HM
>>
>> On Mon, Aug 14, 2017 at 9:27 PM, Frank Westphal <k6fw1 at verizon.net <mailto:k6fw1 at verizon.net>> wrote:
>>
>> I use LOGIC 9 and it uploads the downlink frequency. I enter both
>> uplink and downlink frequencies into the logging program LOCIC 9. I receive lots of matches and that seems to be the accepted
>> convention. I know ARRL suggests uploading the uplink frequency
>> in their documentation. LOGIC 9 does not follow that
>> recommendation and from my experience most other sat operators are
>> not either.
>>
>> YMMV
>>
>> 73,
>> Frank
>> K6FW
>>
>>
>> On 8/14/17 10:27 AM, jerry.tuyls at telenet.be
>> <mailto:jerry.tuyls at telenet.be> wrote:
>>
>> Spending some time here by telling several times on AO-85
>> passes about bad modulation to the same stations, but they
>> DON'T listen.
>>
>> Just ignoring them, because i cannot understand them on my
>> TS-790/FT-847.No narrow FM and no PL tone. Never got a problem.
>>
>> And please...why do some stations upload logs with DWNlink
>> freq on sat qso's instead of the UPlink freq?
>> Always having some rejected qsl's because qso's don't match
>> due to wrong band. I log with VQlog, uplink and dwnlink freq
>> etc, so i think the TX-freq is most important for logging
>> sat'qso's and not the RX-freq?
>>
>> 73's
>>
>> Jerry,ON4CJQ
>>
>>
>>
>>
>> ----- Oorspronkelijk bericht -----
>> Van: "R.T.Liddy" <k8bl at ameritech.net <mailto:k8bl at ameritech.net>>
>> Aan: "Matthew Stevens" <matthew at mrstevens.net
>> <mailto:matthew at mrstevens.net>>, "Joe" <nss at mwt.net
>> <mailto:nss at mwt.net>>
>> Cc: "amsat-bb" <amsat-bb at amsat.org <mailto:amsat-bb at amsat.org>>
>> Verzonden: Maandag 14 augustus 2017 02:33:37
>> Onderwerp: Re: [amsat-bb] Modulation levels on AO-85
>>
>> "...food in the mic hole, etc."!!! LOL!!! - Bob K8BL
>> From: Matthew Stevens <matthew at mrstevens.net
>> <mailto:matthew at mrstevens.net>>
>> To: Joe <nss at mwt.net <mailto:nss at mwt.net>>
>> Cc: amsat-bb at amsat.org <mailto:amsat-bb at amsat.org>
>> Sent: Sunday, August 13, 2017 7:25 PM
>> Subject: Re: [amsat-bb] Modulation levels on AO-85
>> Like Jerry said, its more an issue with mic gain or poor
>> mic technique than anything else.
>>
>> - Matthew nj4y
>>
>> Sent from my iPad
>>
>> On Aug 13, 2017, at 19:18, Joe <nss at mwt.net
>> <mailto:nss at mwt.net>> wrote:
>>
>> Plus a LOT of people are running Narrow Modulation now.
>> Joe WB9SBD
>> Sig
>> The Original Rolling Ball Clock
>> Idle Tyme
>> Idle-Tyme.com
>> http://www.idle-tyme.com
>>
>> On 8/13/2017 6:14 PM, Jerry Buxton wrote:
>> 5 kHz is the nominal "wide" setting for ham radio
>> equipment on the
>> VHF/UHF bands. So a rig set to 5 kHz is what we all
>> usually expect.
>> 5 kHz deviation with 3 kHz audio (the usual top for
>> most voice) would be
>> about 16 kHz bandwidth. The deviation number alone is
>> not equal to
>> bandwidth. ("Carson's Rule")
>> Low audio is usually just that, not talking loud
>> enough, not talking
>> into the mic properly, mic gain setting too low, food
>> in the mic hole, etc.
>>
>> Jerry Buxton, NØJY
>>
>> On 8/13/2017 17:55, Ronald G. Parsons wrote:
>> I’ve noticed lately that many stations on AO-85
>> have barely audible modulation. Yet other stations
>> have clear audio with good quieting. I have heard
>> the some manufacturers of hand-held and mobile
>> rigs are setting their maximum deviation to 5 kHz
>> or even less. I have noticed the same effect on
>> local repeaters. Has anyone done any tests of the
>> deviation required for reasonable quieting on
>> AO-85? Or are more stations using lower power than
>> in the past?
>>
>> Ron W5RKN
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