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SR-40 on 30 meters -- FB


Chuck Carpenter
 

Bruce and All,

Just did the minor mods needed to change bands and all is working FB. Signals are fair this time of day from about -135 to -100 dBm on some sigs.

I didn't have 33pF caps for C6 and C7 so I used 39pF np0/c0g instead.

Will be looking to see what the panadapter looks like when there is a DX pileup happening...[g]


Chuck Carpenter, W5USJ, Point, TX -|- Rains Co. -|- EM22cv -|- 72 es 73
50 years -|- 19 - K2OFN and 31 - W5USJ -|- Most fun = QRP since 1984.
www.w5usj.com hosted by Hamnutz.com -|- NeTxQRP www.netxqrp.com


Bruce Beford
 

Thanks for the update, Chuck. Glad to hear it is working for you.
The cap values are not too critical. As long as you can get the
crystal to oscillate, and have enough level out out that it triggers
the comparator that follows it, it will run the digital portions of
the circuit. So, if others don't have 33pf caps on hand, you can try
22, 27 or, like Chuck, 39 pF.

73, Bruce N1RX

--- In softrock40@..., Chuck Carpenter <w5usj@9...>
wrote:

Bruce and All,

Just did the minor mods needed to change bands and all is working
FB. Signals are fair this time of day from about -135 to -100 dBm
on some
sigs.

I didn't have 33pF caps for C6 and C7 so I used 39pF np0/c0g
instead.

Will be looking to see what the panadapter looks like when there
is a DX
pileup happening...[g]


Chuck Carpenter, W5USJ, Point, TX -|- Rains Co. -|- EM22cv -|- 72
es 73
50 years -|- 19 - K2OFN and 31 - W5USJ -|- Most fun = QRP since
1984.
www.w5usj.com hosted by Hamnutz.com -|- NeTxQRP www.netxqrp.com