[amsat-bb] Re: LoTW Questions

Gary "Joe" Mayfield gary_mayfield at hotmail.com
Mon Jan 31 10:52:00 PST 2011

The ARRL does a nice job of spelling out the parameters here:

The band that matters ( according to the ARRL ) is the band you transmit on, not the band you receive on.

Here is the data you need to log the contact and have it count in LOTW

<CALL:6> [The Station You Worked]
<TIME_ON:6> [HHMMSS] in utc
<BAND:4> [The band you transmitted on]
<MODE:3> [SSB, CW, FM, etc.]
<SAT_NAME:4> [The bird you used]

Please note it is VERY unforgiving as far as entries go. Things must be spelled correctly!  The [] above should not be included.  I have yet to hear the exact allowable clock difference, but I'm sure it is several minutes at least.

Joe kk0sd

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Zachary Beougher
Sent: Monday, January 31, 2011 12:11 PM
To: amsat-bb at amsat.org
Subject: [amsat-bb] LoTW Questions

Hi All,

I am trying to get myself going on LoTW, and I need to know what the generally excepted parameters are for QSO information.  

1) In my logbook (HRD), what should I put for the freq. (2m, 440)?

2) What happens if my log entry is one minute off of stations B’s entry (1906z versus 1905z) – will they match up?

3) What should my mode be set at (FM, SAT)?

4) Other than date, time, call, mode, sent RST, rcvd RST, band and name (op name), is there anything that needs to be added to it when I go to upload?  This was the default LoTW selection for HRD, so I am assuming it is correct.

I can’t think of any other questions at the moment, but any other helpful tips for getting it started would be appreciated.


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