Let's try this again, this is an announcement of a transceiver kit, the receiver is SDR, the transmitter is conventional.
On Fri, 2006-09-15 at 09:54 -0700, [EMAIL PROTECTED] wrote: > I am pleased to announce that Hendricks QRP Kits will be adding a new kit > to its lineup. Dan Tayloe, N7VE has designed a kit that will be > introduced and available for purchase at Pacificon, and available from > Hendricks QRP Kits immediately after Pacificon. The price of the kit will > be $60. Mail orders and paypal orders will not be accepted until after > Pacificon. I have asked Dan to give us a description of the new kit, and > here it is. > > ------------------------- > The Firefly SDR is a SDR receiver combined with a 2.5W VXO transmitter. > This combination has been optimized for cw only operation. The FF SDR > includes a built in keyer and includes a 1W audio output for driving a > separate cw side tone monitor speaker and a high performance, solid > state T/R switch for full break in QSK operation. > > The first version of the FF SDR is a 30m version. The final 30m FF SDR > prototype has 2.6W output power and has a receiver sensitivity of -128 > dbm as measured in a 500 Hz receiver bandwidth using a Presonus Firebox > "sound card". The receiver is centered on 10.114 MHz and is capable of > tuning +/- 24 KHz from that point. The VXO transmitter uses a two > crystal "super VXO" configuration and nominally covers 10.102 to 10.113 > MHz, although the actual tuning range will depend on the exact > characteristics of the particular crystals you get. > > An SDR receiver has low level stereo audio outputs and is designed to > feed into the audio sound card of a computer. Best receiver results > will be obtain using a good sound card such as a Delta 44, which > incorporates a high end 24 bit analog to digital (A/D) converter. > However, even the 16 bit A/D converters of a typical PC sound card > should provide usable received signals although at a reduced > sensitivity. > > It is very amazing to be able to watch activity across a +/- 24 KHz > segment of the band and know without tuning where the signals are and > how strong they are. You can even watch DX pileups in progress. With > the Firefly SDR, you can tune the transmitter exactly were you want it > (visually!) using the spot function, then jump in and go for it. > > The FF SDR controls consist of a tuning knob for the VXO controlled TX, > a TX spot switch, a cw speed control for the built in keyer, a > programming push button for the keyer, a sidetone monitor speaker > output, a keyer paddle input, a I/Q stereo output which is connected to > the computer sound card, and an antenna jack. The basic kit does not > include a case, nor external pots, switches, and jacks. > > Again, the FF SDR has been optimized for cw only operation. The use of > a dedicated internal keyer chip with a 1w audio sidetone speaker output > totally eliminates any lag associated with running cw on an SDR > transceiver. > > Other versions of the kit will be released later for 14, 18, and 21 > MHz. > > ------------------------- > > Next week I will be announceing 2 more kits that will be available for the > first time at Pacificon. Dan will be demonstrating the FF SDR on Friday > afternoon of Pacificon at 4:30 PM. Hope to see you there. 72, Doug > > Hendricks QRP KITS: www.qrpkits.com > > > ______________________________________________________________ > QRP-L mailing list > Home: http://mailman.qth.net/mailman/listinfo/qrp-l > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[EMAIL PROTECTED] -- Cecil KD5NWA www.qrpradio.com www.hpsdr.com "Sacred Cows make the best Hamburger!" Don Seglio Batuna Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/soft_radio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
