W6IWI, Tucson AZ

We moved from Arvada CO to Tucson AZ in 2021. An archive of the Colorado station is here. This page describes the current station in AZ.




Favorite band, image from the cover of a recent CRHS Journal, an old Schlitz magazine ad, Solar-Terrestrial Data showing conditions for HF and VHF bands and the MUF for Boulder CO, something about FT8, the W6IWI QSL card, view of W6IWI Mobile. The Optimal Working Frequency is about 0.85 times the Maximum Usable Frequency.

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The call letters W6IWI were first used by Kauko Hallikainen in the 1930s (1933 license, 1937 ARRL membership). See the 1934, 1936, 1937, and 1938 Amateur Radio Callbook. The 1930s QSL card was similar to that shown above (I may still have one of the originals somewhere). By 1952, the call had been reassigned to Carson Donaldson in Inglewood CA. He held it through 1977. I acquired the call in 2016. Prior to that, I held the call WA6FDN, and prior to that, WN6FDN. The WA6FDN license was first granted in 1969, with WN6FDN in 1968. WA6FDN shows up in the Summer 1969 Callbook. In December 1969, I took the exam for the First Class Radiotelephone License with Radar Endorsement at the FCC office in San Francisco. That license was later replaced by the FCC with the General Radiotelephone Operator's License. NL7XM offers a great service. He has over 100 years of Radio Amateur Callbooks and will find the first appearance of your callsign in the Callbook. For a reasonable cost, he'll provide certified copies of these pages verifying that the callsign was held by the particular person on this date. This is what he sent me for WN6FDN and WA6FDN.

WN6FDN started with a Heathkit DX-60 transmitter and a National NC-300 receiver running CW on HF. WA6FDN used a Viking Ranger transmitter running AM, CW, and RTTY on HF. RTTY used a Teletype model 15 printer (also see a slow motion video of a model 15 in operationg), and a model 14 typing reperf and transmitter distributor. W6IWI now uses an SEA 245 with a Dentron Clipperton-L amplifier running RTTY, CW and SSB into a Zero Five 30 Foot Flagpole Antenna. VHF and UHF FM are covered with a Baofeng UV-5R and a Wouxun KG-UV-6X. The Wouxun KG-UV-6X normally drives a Diamond X50A vertical antenna at home. Mobile info is here.

HF Station Details

Click in a box in the block diagram for more details.

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W6IWI HF Activity

The table below shows recent contacts logged on qrz.com.

RBN Report

The table below is generated by a PHP script that pulls JSON data from the Reverse Beacon Network, parses it, calculates distance and bearing based on latitude and longitude, then shows data for the last 100 spots. Frequency changes greater than 1 kHz or time changes greater than 1 hour are shown in bold. The Rx links link to the QRZ page for the station. The SNR links link to a graph of signal to noise ratio versus time for that receiver, mode (CW or RTTY), and band (data limited to 100 spots from RBN)

The background color is green if the distance is greater than 3,000 miles. The Relative Distance column has a * for every 200 miles.


RBN Data for W6IWI, lat/long 32.233624, -110.870743 as reported by RBN.

TimeRxFreq (kHz)SNRModeSpeedRx LocationDistance and BearingRelative Distance
0502z 19 JulWZ7I 14083.9 14 dB RTTY45 bpsPipersville, PA3304 km (2053 miles) at 63.8 degrees**********
0502z 19 JulWV4P 14083.9 12 dB RTTY45 bpsSavannah, TN2109 km (1310 miles) at 74.6 degrees******
0501z 19 JulG4ZFE 14083.9 19 dB RTTY45 bpsBracknell, Berks, England8493 km (5277 miles) at 37 degrees**************************
0501z 19 JulVE7CC 14083.9 16 dB RTTY45 bpsMaple Ridge, BC2120 km (1317 miles) at 336.1 degrees******
0501z 19 JulK9LC 14083.9 25 dB RTTY45 bpsRockford, IL2227 km (1384 miles) at 53.7 degrees******
0501z 19 JulWE9V 14083.8 37 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
0501z 19 JulKH6LC 14083.9 24 dB RTTY45 bpsKeaau, HI4652 km (2891 miles) at 264.3 degrees**************
0501z 19 JulOE9GHV 14083.9 16 dB RTTY45 bpsRankweil, Austria9366 km (5820 miles) at 35.8 degrees*****************************
0000z 19 JulWE9V 14083.8 19 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
0000z 19 JulAC0C-1 14083.9 37 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
0000z 19 JulW6YX 14083.9 38 dB RTTY45 bpsStanford, CA1182 km (734 miles) at 302.2 degrees***
0313z 18 JulOE9GHV 14083.9 14 dB RTTY45 bpsRankweil, Austria9366 km (5820 miles) at 35.8 degrees*****************************
0313z 18 JulVE7CC 14083.9 12 dB RTTY45 bpsMaple Ridge, BC2120 km (1317 miles) at 336.1 degrees******
0313z 18 JulK9LC 14083.9 16 dB RTTY45 bpsRockford, IL2227 km (1384 miles) at 53.7 degrees******
0313z 18 JulAC0C-1 14083.9 50 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
0313z 18 JulWE9V 14083.8 30 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
0312z 18 JulKH6LC 14083.9 21 dB RTTY45 bpsKeaau, HI4652 km (2891 miles) at 264.3 degrees**************
2321z 17 JulAC0C-1 14083.9 42 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
2321z 17 JulW6YX 14083.9 37 dB RTTY45 bpsStanford, CA1182 km (734 miles) at 302.2 degrees***
2321z 17 JulWE9V 14083.8 18 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
2321z 17 JulKE3BK 14083.9 35 dB RTTY45 bpsMountain House, CA1149 km (714 miles) at 305.3 degrees***
1818z 17 JulKE3BK 14083.9 20 dB RTTY45 bpsMountain House, CA1149 km (714 miles) at 305.3 degrees***
1818z 17 JulAC0C-1 14083.9 32 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
1818z 17 JulW6YX 14083.9 29 dB RTTY45 bpsStanford, CA1182 km (734 miles) at 302.2 degrees***
0328z 17 JulW8WWV 7052.0 22 dB CW15 wpmChesterland, OH2802 km (1741 miles) at 60 degrees********
0328z 17 JulWE9V 7052.0 24 dB CW15 wpmBristol, WI2309 km (1435 miles) at 53.7 degrees*******
0328z 17 JulK2PO/7 7052.0 29 dB CW15 wpmPortland, OR1795 km (1115 miles) at 327.8 degrees*****
0328z 17 JulKO7SS 7052.0 34 dB CW15 wpmMt. Lemmon, AZ23 km (14 miles) at 18.1 degrees
0328z 17 JulN6TV 7052.0 31 dB CW15 wpmSan Jose, CA1141 km (708 miles) at 302.1 degrees***
0328z 17 JulK6FOD 7052.0 37 dB CW15 wpmSouth Pasadena, CA706 km (438 miles) at 289.1 degrees**
0328z 17 JulZF9CW 7052.0 20 dB CW14 wpmCayman Islands3386 km (2104 miles) at 106.6 degrees**********
0250z 17 JulW6YX 14083.9 14 dB RTTY45 bpsStanford, CA1182 km (734 miles) at 302.2 degrees***
0250z 17 JulKH6LC 14083.9 19 dB RTTY45 bpsKeaau, HI4652 km (2891 miles) at 264.3 degrees**************
0249z 17 JulAC0C-1 14083.9 47 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
0249z 17 JulWE9V 14083.8 40 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
0249z 17 JulK9LC 14083.9 21 dB RTTY45 bpsRockford, IL2227 km (1384 miles) at 53.7 degrees******
0249z 17 JulG4ZFE 14083.9 18 dB RTTY45 bpsBracknell, Berks, England8493 km (5277 miles) at 37 degrees**************************
1937z 16 JulK6FOD 14083.9 10 dB RTTY45 bpsSouth Pasadena, CA706 km (438 miles) at 289.1 degrees**
1936z 16 JulK9LC 14083.9 13 dB RTTY45 bpsRockford, IL2227 km (1384 miles) at 53.7 degrees******
1936z 16 JulWE9V 14083.8 20 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
1936z 16 JulW6YX 14083.9 22 dB RTTY45 bpsStanford, CA1182 km (734 miles) at 302.2 degrees***
1936z 16 JulAC0C-1 14083.9 22 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
1936z 16 JulKE3BK 14083.9 14 dB RTTY45 bpsMountain House, CA1149 km (714 miles) at 305.3 degrees***
0401z 16 JulWC2L 7052.0 22 dB CW16 wpmNiskayuna, NY3434 km (2134 miles) at 59.4 degrees**********
0356z 16 JulTI7W 7052.0 26 dB CW16 wpmGuanacaste, Costa Rica3566 km (2216 miles) at 126.3 degrees***********
0356z 16 JulK2PO/7 7052.0 31 dB CW17 wpmPortland, OR1795 km (1115 miles) at 327.8 degrees*****
0356z 16 JulKO7SS 7052.0 37 dB CW16 wpmMt. Lemmon, AZ23 km (14 miles) at 18.1 degrees
0356z 16 JulK9LC 7052.0 18 dB CW16 wpmRockford, IL2227 km (1384 miles) at 53.7 degrees******
0356z 16 JulW6YX 7052.0 35 dB CW16 wpmStanford, CA1182 km (734 miles) at 302.2 degrees***
0356z 16 JulVE3EID 7052.0 24 dB CW16 wpmSprucedale, ON3063 km (1903 miles) at 52.2 degrees*********
0251z 16 JulG4ZFE 14083.9 13 dB RTTY45 bpsBracknell, Berks, England8493 km (5277 miles) at 37 degrees**************************
0251z 16 JulK9LC 14083.9 17 dB RTTY45 bpsRockford, IL2227 km (1384 miles) at 53.7 degrees******
0251z 16 JulWZ7I 14083.9 16 dB RTTY45 bpsPipersville, PA3304 km (2053 miles) at 63.8 degrees**********
0251z 16 JulAC0C-1 14083.9 46 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
0251z 16 JulKH6LC 14083.9 14 dB RTTY45 bpsKeaau, HI4652 km (2891 miles) at 264.3 degrees**************
0251z 16 JulWE9V 14083.8 26 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
0251z 16 JulVE7CC 14083.9 13 dB RTTY45 bpsMaple Ridge, BC2120 km (1317 miles) at 336.1 degrees******
2336z 15 JulWZ7I 14083.9 11 dB RTTY45 bpsPipersville, PA3304 km (2053 miles) at 63.8 degrees**********
2335z 15 JulWE9V 14083.8 15 dB RTTY45 bpsBristol, WI2309 km (1435 miles) at 53.7 degrees*******
2335z 15 JulAC0C-1 14083.9 39 dB RTTY45 bpsLouisburg, KS1632 km (1014 miles) at 59.6 degrees*****
2335z 15 JulW6YX 14083.9 32 dB RTTY45 bpsStanford, CA1182 km (734 miles) at 302.2 degrees***
1603z 15 JulK9LC 14083.9 23 dB RTTY45 bpsRockford, IL2227 km (1384 miles) at 53.7 degrees******
1603z 15 JulAC0C-1 14083.9