[MarinTeams] Fw: PSK-31 Contact

[Bill Smith]

----- Original Message ----- 
From: Bill Smith 
To: MarinTeams at qsl.net 
Sent: Sunday, May 09, 2004 10:12 AM
Subject: PSK-31 Contact


Peter, KG6MZV and Bill, AB6MT successfully established contact on 80 meters, 20 meters and 10.070 MHz (30 meters) last night at 8:00pm using PSK-31.  Distance between stations was perhaps 7 miles.  80 meters turned out to be the best frequency.  20 meters was busy with other PSK-31 signals but it took 15-40 watts to make contact.  Various power levels were tried; on 80 power could be reduced to almost zero without affecting copy.  Regular equipment was used to make the test.

Parts were traded at the clubhouse this Saturday.  The parts list is a bit short.  It calls for 4 crystals, but the schematic calls for 5.  Also, a 4-uF can should be listed as QTY 2, not QTY 1 as indicated on the parts list.  Two ferrite cores are not listed at all.  One is a FT-37 with white paint (high stability, 1-40 MHz, Amadon)  The other one remains a mystery at present, though it should also be a FT-37 size.  

There "may be" (read "probably are") other errors, please double check the list.  We still need to find a source or substitute for the FET.

Peter received the PSK-31 Warbler kit from Small Wonder's labs.  It looks very good and seems to be well worth $50.  Unfortunately, it can't easily be moved without a major investment in crystals.  If you know of an inexpensive crystal source for crystals on a MARS frequency, let us know!

80 meter PSK-31     3.580  LSB (Set program tone to 1500 Hz)
40 meter PSK-31     7.035  LSB
20 meter PSK-31   14.070  USB
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