But Will It Mix? Receiving up to 10GHz or higher with an RTLSDR and Sup-2400? Maybe.
Hey All, Yeah, I need to repaint my desk. Anyway… By popular request: Can we receive the 3cm band (10GHz) and beyond using an RTLSDR, Airspy,…
Articles by kd0cq
Control the ADF4351 with an Arduino – Source code
Hey all, I've had a few requests for Arduino code to run the ADF4351 (also ADF4350) from an Arduino. What I am posting is code…
SOLD – GE MASTR II 75W UHF Repeater Amplifier
This item has sold. Thanks for looking. GE MASTR II 75W UHF Continuous Duty Duplex FM Amplifier. Model number: 19D424895G27 Rackmount style (3-4 RUs) Includes…
SOLD – Flex SDR-1000 100W HF-6M SDR Transceiver
Sold, thanks Ronnie! – For sale or trade is my spare Flex SDR-1000 SDR with the 100W PA + a couple rare goodies! (qth ad: https://swap.qth.com/view_ad.php?counter=1318421) Included…
RasPI 3 Mods for PITX and External WiFi Antenna
RasPI 3 Wifi External Antenna Mod After reading all the excitment over that past couple years about using the RaspberryPI as a transmitter I finally broke…
Exploring L-Band Satellites With Airspy Mini And A 1m Dish
Back around Christmas (2016) I received an Airspy Mini and was immediately impressed with its performance. With a simple homemade Vivaldi antenna I was able…
You Can’t Go To Sleep Tonight Without Building This 1 Antenna First!
*Short update at bottom of page OK, now that we have the poorly written Buzzfeed headline out of the way, here are the results of…
Vivaldi Antenna Cutouts or Transfers for SDR
I've been watching folks discuss RFSPACE's Vivaldi antenna's on Twitter a lot over the past few weeks and became interested in witnessing the performance of…
PCB Toner Transfer Files for BPF and FM Notch Filter
Made these and thought I'd share. Just in case someone else needed it. I made these for use with the RTLSDR but they could be…
SOLD – For Sale or Trade Palomar 300a 40m-20m-15m-10m 450 watt amplifier
This amp has been sold. Thanks for looking! Palomar 300a 40m-20m-15m-10m 450 watt amplifier. Great for use with QRP rig (817, flex 1500,…