Fw: [softrock40] v6 RXTX Transceiver beta kit
wb4jfi at knology.net
Mon Oct 9 12:59:54 CDT 2006
Here is the email I meant to forward... for those of you interested in the soft rock exciter, its now both Tx and Rx on one board. Prototype orders being accepted by Tony at $38.00, for 40 meters. Paypal to raparks at ctcisp.com.
----- Original Message -----
To: softrock40 at yahoogroups.com
Sent: Monday, October 09, 2006 9:56 AM
Subject: [softrock40] v6 RXTX Transceiver beta kit
Good Morning All,
I am in the cleanup phase of the board layout for the v6 RX-TX kit
and have gone through an initial costing exercise. It looks like a
v6 RX-TX transceiver kit could come in at a price of $38 for the 40m
kit. This would be the US/Canada price with postage included. The
DX price would need to be $39 to help cover the additional postage
cost for DX mailing.
The v6 RX-TX transceiver is a single board SoftRock receiver mated
on the same board with the v6 exciter. The exciter design is from
the UK design group of G0BBL, MOPUB and G8BTR. The board size is
slightly smaller than a standard playing card at 3.5 inches by 2.4
inches and should be capable of up to 0.8 watts output CW, (with
proper heat sinking of the 2N3866 output transistor), and a little
less for higher duty cycle modes. Band coverage should be at least
+/- 20 kHz from the crystal controlled center frequency with a 2 kHz
gap in coverage around the center frequency. The center frequency
options for the beta kit will be 7.055 MHz and 7.159 MHz
Recent measurements on prototype v6 exciters indicate that meeting
the FCC spurious emissions standard should be possible with help
from the SDR software to correct for circuit imbalance relative to
sideband suppression. A change to an elliptic LPF for the PA output
filter should help in making sure higher order harmonics are
I am quite interested in trying this new "transceiver" kit design
and would like to invite others to try it also. The plan is to
offer forty v6 RX-TX beta kits at $38 for US/Canada and $39 for DX.
Beta v6 RX-TX kits may be ordered by PayPal to me at
raparks at ctcisp.com and the kits will be mailed out near the end of
next week. Kit documentation, schematic and bill of materials, will
be posted later this week.
Thanks for the positive comments a number of people have sent
concerning this kit effort.
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