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Caution Urged in Using High Duty Cycle Digital Modes via Satellite
A report in ANS-288 discussed an experiment operating with the WSJT-X FT8 digital mode via satellite. Satellite operators have gained more experience... Read more
New version 2.8 of the WSJT DX Aggregator – DXMAPS
New version 2.8 of the WSJT DX Aggregator, that now optionally allows to automatically upload in real time your QSO to the DXMAPS online log. Download... Read more
IC-7610 Technical Report Vol. 2 (English Version)
IC-7610 Technical Report, which explains the RF direct sampling system and RMDR used in the IC-7610. You can find the Technical Report here: http:/... Read more
The Ham has developed a SDR radio mcHF DIY
ESDR: 1 ~ 50MHZ 15W power, FFT spectrum display, data communication support. About Portable: machine + battery (using 6 18650 battery box, can repla... Read more
FCC Invites Comments on ARRL Technician Enhancement Proposal
The FCC has invited public comments on ARRL’s 2018 Petition for Rule Making, now designated as RM-11828, which asks the FCC to expand HF privileges fo... Read more
APRS In Your Pocket
APRS For a lightweight portable station, all you need is a handheld transceiver, a tiny packet TNC, and an Android smartphone. For those unaware, APRS... Read more
3. LDMOS HF AMPLIFIER 100W INPUT 2400W OUTPUT BLF188XR 2 PCS 1.8-54 MHZ
LDMOS HF amplifier 90W input 2400W CW SSB output 1.8-54 MHz This a ready power amplifier. You will need a case and power supply only! Water-cooled h... Read more
![K8XS – JK Antennas Stack [ Video ]](https://qrznow.com/wp-content/uploads/2016/09/maxresdefault-265x168.jpg)
K8XS – JK Antennas Stack [ Video ]
K8XS – JK Antennas, JK802 (2el-80M), JK2040 Grande (5el-20M/4el-40M Full-size), JK304 (4el-30M) Stack on a 180Ft LUSO Tower. Read more
DX0P Pagasa Island AS-051
DXpedition Team 14 – 20 April 2015 asDX0P. DU1BP, DU2BOQ, DU7RJA, DV1JM, K6BF, K6BG, WA6LOS, WE6DX, WJ1P, WW6CP Team Leader: WA6LOS RIGS:... Read more
W3EDP Antenna
In the 1936 March issue of QST, Yardley Beers, W3AWH, described an antenna designed by his friend, Mr. H. J. Siegel, W3EDP. The design was based on th... Read more
RigExpert AA-230 Antenna Analyzer Unboxing and Initial
The RigExpert AA-230 Zoom analyzer is designed for measuring SWR (standing wave ratio), return loss, cable loss, as well as other parameters of cable... Read more
Interesting facts about Samuel Morse and the Morse code
>> Samuel Morse was inspired to explore a means of rapid long distance communication after suffering a personal tragedy in 1825. While at... Read more
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