One to provide a VFO function with enough drive to run old Crystal controlled transmitters, and the the second unit providing the L.O. for the Block converter. While doing a little research, I happened across an article which outlined a method for amplitude modulating a AD9850 DDS IC.
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- TR7 PTO Replaced by DDS VFO-2: TR7 PTO Ersätzt durch DDS-2 . First Full System Test with DDS and New Display . Innnenleben mit die neue Modulen unten in TR7: Bottom ...
- The N4YG DDS (Digital) VFO and the Drake TR-7, by Floyd Sense / K8AC. Installing the X-Lock-3 in the Drake TR-7, by: Pete Juliano / N6QW. Drake L-4B, Table Top Amplifier Redesign, by: Ron Baker / WB4HFN. Drake TR-7 Improvements - Installing X-Lock VFO Stablizer / KI4GIN. The Drake TR-6 and TR4 Series AM Filter Up Date, by: Jeff Covelli / WA8SAJ
Nov 01, 2016 · Thats correct, I am still new to Frtizing. The plan is to get the simple DDS VFO working and then to replace the 9850 with the Si5351 and the 1602 LCD with a nice 2.2" TFT touch screen. 73 Carl M0ICR
- Read the reviews on EHAM Visitors Since 1-Feb-2010 In 2010 approx 40% of orders were shipped outside the US, to 40 different countries, most commonly to U.K, Canada, Italy, Australia, France, Netherlands and Spain in that order.
HomeBrew DDS VFO built using AD9850 DDS module, Arduino processor, & Backlit LCD display all for about $25 bucks. Overview of my Homebrew Arduino DDS VFO for the Heath HW-101 Transceiver.
- 01.08.2018 1909hrs UTC-----SSTV image received from IO86 LAPAN A2/ORARI Satelite
I've simply combined two recent projects, my DDS VFO and the 80m QRP AM transmitter now boxed up. The crystal is still in place but if you plug in the external VFO it swamps it. A nice chunky DPDT switch switches both DC and the antenna. The box for the AM transmitter is made from a dead PC power supply.
- R1-VFO PROJECT. R1 is a mini receiver cum Signal Generator Project which uses Si5351 to produce 2 variable, Configurable VFO Signals. Available with a DEV board where kit builder may make their own receiver or other projects
Kenwood or Trio TS-900 Service Manual and VFO-900. I recently picked up two old Trio TS-900 transceivers from around 1973, complete with matching PSU / speaker. One works well, the other needs some TLC and, I suspect, some restoration work.
- HomeBrew AD9850 Arduino DDS VFO on the Cheap! HomeBrew DDS VFO built using AD9850 DDS module, Arduino processor, & Backlit LCD display all for about $25 bucks.
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- For my homebrew receivers, trx, i used to make the vfo and stabilized it with the tailore made/wizely choosed components. But, now a days the world has become digital with precise commercial equipments. Mechanical vfo dont stand a chance, even the 50hz shift is pointed out by others. In this the ultimate saviour for homebrewer is DDS VFO.
Homebrew Equipment Discussion ... Is There A DDS VFO Kit Sold In The U.K? Post by robkay » 09 May 2012, 18:55. Thinking of building a DDS style VFO, is there a kit ...