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Showing posts from 2025

K5OHY's RBN Signal Mapper is FB

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I had a FB QSO with Tim Hale K5OHY from Midland TX the other day, and browsed his QRZ page as I normally do.   Amongst the pictures of activations, rigs and keys I found a link to the the RBN Analysis Tool he created that allows you to input a callsign, grid, and choose a date for the tool to analyze.  The result is an interactive map that is fun to play with and visually appealing.  You can also download the results for viewing offline.    Tim is hosting the application on Streamlit's cloud based hosting/application development platform.  You can find more information on his home page on QRZ. Here's the link to my signal report from 3.27.25.   https://first100years.blogspot.com/p/k5ohys-rbn-signal-mapper-wx7v-32725.html

12M DX Open for Business 3/15/25

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 I had a lot of fun working 12M today.   Many good DX contacts as you can see from my log below.   KP 1.67 (Quiet), A:25 SFI 180 Sunspot: 147.    We're at the height of Solar Cycle 25  which is expected to peak in activity in 2025.   The solar minimum between Solar Cycle 24 and 25 - the period when the sun is least active - happened in December 2019, when the 13-month smoothed sunspot number fell to 1.8   Solar maximum is expected in July 2025, with a peak of 115 sunspots. QSO Map RBN Spots on 12M calling CQ WX7V

POTA Activation #60 and thoughts on Spring Creek Forest State Preserve US-4423

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Spring is nearly here in Texas.  I was able to get in another quick activation yesterday at US-4423 Spring Creek Forest State Preserve.   Located in Garland and just 14 miles north of Dallas, Spring Creek is very accessible.   As noted in  Wikipedia ,  the existence of virgin forest within city limits is highly unusual, as the 19th Century settlers in the area typically cut down the forests for use in construction or to clear land for farming. Noise is usually a problem since the park is right in the middle of the Dallas metroplex, but 15 meters was open and the signals were very good.  I was able to get 22 CW contacts in 30 minutes using my Yaesu FT-857d and ATAS-120 antenna.  I did not try SSB.  Once I got home,  I was happy to see this was my 60th activation at 43 unique parks.   I’m a long way from a KILO, but with 314 QSOs made at US-4423 I should make this a priority! The park contains about 230 acres of land, preserving some of th...

More Remote CW Operations with SmartSDR iOS and CTR2-Dial

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I was away for another business trip to India from 2.13.2025 thru 2.21.2025.  The CTR2-Dial and Smart-SDR iOS solution on my iPhone again worked flawlessly.  Was able to make a few contacts most days both from calling CQ and Search and Pounce.  The Lynn's controller is a nice solution that's really robust! The work schedule was very hectic, usually 7am IST to mid-night, but it was really nice to get in a little radio time!   I have yet to work VU (India) DX stations from US!   73, Chris de WX7V

Remote CW straight key operations using the SmartSDR for iOS and the new CTR2-Dial

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This week I received the new CTR2-Dial, a new MIDI controller for remote ham radio operations from Lynovation (Lynn Hanson NU7Q) with support for RHR, Thetis and Flexradio.    This new controller is enhanced version of CTR2-MIDI but features a color touchscreen display.  The dial is completely programmable and support dozens of buttons and dials which simulate Mode, Band, VFO, RIT/XIT functions, etc.   The platform is still very much under development so I flashed the firmware to the latest version (1.00.04).  I loaded the default map into SmartSDR iOS and updated Trigger Straight Key (98) and PTT Push (99) configs in the map file.    The controller is connected via USB to my iPhone via an OTG adapter to power the Dial and communicate with SmartSDR.  The straight key connects to the TRS jack onthe dial.  I made a few test calls and RBN spotted me right away which is always the best part of the test.   The Rest of the controls (...

NM US-2701 Hyde Memorial State Park

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First activation of the new year, and it took two attempts to get NM US-2701 Hyde Memorial State Park activation in the books.  No internet or cell service, and valleys and deep canyons make this park a challenge to activate QRP.   I chose 17M for both attempts.  I could hear many stations on 17M and 20M but 17 was less crowded on both days. During the first outing, I used a ground mounted vertical  (MP1c Super antenna) and only got 1 QSO (from KS) over the course of an hour.   I checked RBN when I got back to our lodging and confirmed my KX3 was definitely getting out.  However most of my RBN spots were < 20db and many were less than 10db SNR. Not accepting defeat, today I went back for a second try the next day and set up in the same location, at the same time of day.   But time I scheduled the activation on the POTA spotting page before I headed out,  and switched to to an EFHW up about 15th in an inverted V configuration....