Lee De Forest Special Event Resources

K6L Operator Resources

Operating Notes

  • Have Fun!
  • Use LTAC1 145.540 MHz FM to coordinate with other station activity.
  • K6L.INFO links directly to event page.
  • Use the QSO script as a sample QSO.
  • Use this page as your Station Operator Portal
  • The ideal QSO results in QSL card delivery. Our system attempts to find email on popular platforms like QRZ.com, however only those who have elected to make a email address public will receive a emailed QSO card automatically.

*Let contacts know if they visit K6L.INFO they can provide email for card delivery, download the qsl card directly from there, and get information for a mailed QSL Card.

K6L 2026 Lee de Forest Special Event

K6L Event Activity

Event concluded
Active Stations12
Total QSOs1645
Phone127
Digital1531
CW0
Complete Event Stats

Event Top Operators

OverallKN6RBP594 QSOs
PhoneKO6JVD65 QSOs
DigitalKN6RBP593 QSOs

Operator Standings

OperatorTotalPhoneDigitalQSL
KN6RBP 594 14 593 80.6%
KO6ALP 306 8 298 81.4%
KM6JWS 288 1 287 80.2%
KN6PKG 150 2 148 81.3%
WD5GIE 92 0 92 82.6%
KO6JVD 65 65 0 72.3%
WK3Y 56 1 55 78.6%
KN6PUR 30 0 30 63.3%
KN6AUV 27 0 27 77.8%
KN6UNL 27 27 0 70.4%
N6DMP 9 9 0 88.9%
KN6SVA 1 0 1 100.0%

Activity by Day

DateTotalPhoneDigital
Aug 9 361 15 355
Aug 8 651 58 593
Aug 7 633 54 583

Mode Summary

ModeQSOs
Phone127
Digital1531

Band Activity

BandTotalPhoneDigital
160m 3 0 3
80m 118 2 116
40m 324 6 318
30m 245 0 245
20m 559 95 464
17m 199 0 199
15m 147 0 147
12m 14 0 14
10m 5 2 3
6m 11 2 9
2m 7 7 0
70cm 13 13 13

DXCC Entities Outside the United States

DXCCEntityQSOs
339 Japan 395
1 Canada 42
318 China 17
137 Republic Of Korea 17
150 Australia 15
170 New Zealand 12
100 Argentina 11
108 Brazil 11
15 Asiatic Russia 9
227 France 9
110 Hawaii 9
327 Indonesia 8
72 Dominican Republic 7
54 European Russia 7
116 Colombia 6
6 Alaska 5
112 Chile 5
202 Puerto Rico 5
50 Mexico 4
281 Spain 4
29 Canary Islands 3
70 Cuba 3
91 Aruba 2
308 Costa Rica 2
120 Ecuador 2
74 El Salvador 2
223 England 2
176 Fiji Islands 2
224 Finland 2
321 Hong Kong 2
239 Hungary 2
248 Italy 2
136 Peru 2
272 Portugal 2
288 Ukraine 2
148 Venezuela 2
149 Azores 1
21 Balearic Islands 1
209 Belgium 1
497 Croatia 1
230 Federal Republic Of Germany 1
354 Lebanon 1
96 Montserrat 1
266 Norway 1
88 Panama 1
98 Saint Vincent 1
190 Samoa 1
284 Sweden 1
287 Switzerland 1
90 Trinidad & Tobago 1
QSO Script

CQ, CQ, K6L Special Event. CQ, CQ, K6L Special Event.”

Pause.

“This is KO6ALP calling CQ for the K6L Special Event.”

After contact:

“You’re five-nine into my station for the Lee de Forest Special Event, K6L.”

Lee de Forest was an early radio pioneer whose Audion triode vacuum tube made electronic amplification practical. His work helped make modern radio communication possible, and we honor that legacy through the K6L Special Event.

For more about Lee de Forest, the K6L Special Event, and how to receive a QSL card, please visit k6l.info. You can learn about his inventions, our club, and the event there.

“Thanks for participating. 73.”

“QRZ? This is KO6ALP operating K6L.”

DX Cluster Loading
UTC DX Frequency Mode Spotter Comment

WaveLog and Special Event Logging

Use the LDARC WaveLog system for K6L Special Event logging. See the “Club Mode” button below for instruction on logging in to wave log and entering the K6L club mode. Before logging, confirm you are using the correct station, callsign, band, mode, date, and time. Your QSO’s are visible in the log and reflected on k6ldf.com. Enter contacts promptly and accurately so the post-event QSL and delivery can be handled efficiently.

  • WaveLog server: wavelog.k6ldf.com
  • Use Club Mode only for the K6L event.
  • If a contact, band, mode, or time looks uncertain, pause and confirm before changing the log.
  • QSL follow-up depends on accurate log import, acknowledgement emails, and delivery tracking.

Event Frequency References

The complete K6L on-air reference is maintained in the same popup used on the public event page. Use it for TAC frequencies, HF references, digital/reflector access, Echo​Link/IRLP, and the local repeater.

Lee De Forest Special Event header graphic

Find K6L On The Air

Use these LDARC TAC and common club references for K6L operations. Follow live K6L activity for current operating frequencies.

K6L Frequencies

  • 75m: 3.900 MHz LSB
  • 40m: 7.238 MHz LSB
  • 20m: follow live K6L activity
  • 15m: 21.370 MHz USB
  • 10m: 28.360 MHz USB
  • 10m LTAC5: 29.630 MHz C4FM & FM
  • 6m: 50.625 MHz C4FM
  • 6m: 51.025 MHz USB
  • 6m: 52.515 MHz FM
  • 2m: 144.281 MHz USB
  • 2m LTAC1: 145.540 MHz C4FM & FM
  • 2m LTAC2: 146.445 MHz C4FM & FM

Digital / Reflector

  • Wires-X: LDARC room 62917
  • XLX: XLX-618 Module H
  • YSF: 59073 / US Hemet Hangout

Echo​Link / IRLP

  • Echo​Link: Node 3341
  • IRLP: Node 3341
  • Hours: 06:00 to 23:00

Local Repeater

  • Repeater: 145.420 MHz
  • Offset: negative
  • Tone: PL 88.5
  • Modes: FM and C4FM
Note: These are LDARC TAC and commonly used club frequencies. K6L operators may be anywhere on the bands during the event. Follow the live activity on this event page for current K6L operating frequencies.
Calling Frequencies for All Bands and Modes

160 METERS
1.810 QRP CW Calling frequency
1828.5 — DXpeditions CW Operations are frequently here
1.830-1.840 CW, RTTY and other narrowband modes, intercontinental QSOs only
1.840-1.850 CW, SSB, SSTV and other wideband modes, intercontinental QSOs only
1.825 – SSB QRP Calling Freq
1910 – SSB QRP Calling Freq
PSK31

80/75 METERS
3.500-3.510 CW DX Window
3.505 DXpeditions CW are frequently here
3.560 QRP CW Calling frequency
3.590 RTTY DX
3.790-3.800 SSB DX Window
3.710 QRP Novice/Tech CW Calling Freq
3.845 SSTV
3.885 AM Calling Frequency
3.799 DXpeditions SSB are frequently here
3.985 QRP SSB Calling frequency
PSK31

60 METERS — SEE ARRL WEBSITE

On 60M – CH5 is the unofficial DX calling frequency!

40 METERS
7.000 – 7.010 CW DX Window
7037 Pactor Calling frequency
7.040 RTTY DX
7.040 QRP CW Calling Freq
7.050 XTAL Controlled Rigs
7.290 AM
7.065 DXpedition SSB USA split to 7.150 and above
7.005 DXpeditions CW are frequently here
7.110 QRP Novice/Tech CW Calling Frequency
7.171 SSTV
7.285 QRP SSB Calling frequency
7.290 AM Calling frequency
PSK31

30 METERS
10.106 QRP CW Calling frequency
10.110 — DXpeditions CW are frequently here
PSK31

20 METERS
14.025 DXpedition CW Freq — Usually Split
14.060 QRP CW Calling frequency
14.080 DXpedition RTTY Freq
14.080 to 14.100 Primary Range for RTTY

14.100 NCDXF Beacons (STAY OFF OF THIS FREQUENCY) Many Hams rely on these beacons for propagation determination. For Details – see NCDXF/IARU International Beacon Network

14.195 Rare DX & DXpeditions Frequently Operate SSB Here — Generally Listening Up-Split
14.230, 14233, 14236 SSTV
14.285 QRP SSB Calling frequency
14.286 AM Calling Frequency
14.336 MHz County Hunters when ever 20 is open and mobiles are around. For More County Hunters Frequencies see — COUNTY HUNTERS
PSK31

17 METERS
18.075 DXpeditions CW are frequently here — Usually Split
18.080 CW QRP Calling Freq
18.110 NCDXF Beacons (STAY OFF OF THIS FREQUENCY) Many Hams rely on these beacons for propagation determination. For Details – see NCDXF/IARU International Beacon Network
18.130 SSB QRP Calling Freq
18.145 DXpeditions SSB are frequently here — Usually Split
PSK31

15 METERS
21.025 Rare DX & DXpeditions Frequently Operate CW Here – Generally Listening Up-Split
21.060  QRP CW calling frequency
21.080 to 21.100 RTTY Primary Range
21.080 RTTY DXpeditions are frequently here
21.110 QRP Novice/Tech Calling Freq
21.150 NCDXF/IARU beacons (STAY OFF OF THIS FREQUENCY) Many Hams rely on these beacons for propagation determination. For Details – see NCDXF/IARU International Beacon Network

21.295 Rare DX & DXpeditions Frequently Operate SSB Here — Generally Listening Up-Split
21.340, 21430 SSTV
21.385 QRP SSB calling frequency
PSK31

12 METERS
24.895 Rare DX & DXpeditions Frequently Operate CW Here — Generally Listening Up-Split
24,910 QRP CW Calling FREQ
24.930 NCDXF Beacons (STAY OFF OF THIS FREQUENCY) Many Hams rely on these beacons for propagation determination. For Details – see NCDXF/IARU International Beacon Network
24.950 QRP SSB Calling Freq
24.945 Rare DX & DXpeditions Frequently Operate SSB Here — Generally Listening Up-Split
PSK31

10 METERS
28.025 CW Rare DX & DXpeditions Frequently Operate Here � Split
28.060 QRP CW Calling frequency
28.080 RTTY Rare DX & DXpeditions Frequently Operate Here — Split
28.080 to 28.100 Primary Range for RTTY
28.1010 10/10 Intl CW Calling Frequency
28.110 QRP Novice/Tech Calling FREQ
28.190-28.225 Beacons

28.200 NCDXF/IARU beacons (STAY OFF OF THIS FREQUENCY) Many Hams rely on these beacons for propagation determination. For Details – see NCDXF/IARU International Beacon Network

28.380 10/10 SSB Intl Calling Frequency
28.385 QRP SSB Calling frequency
28.425 10/10 SSB Intl Calling Frequency � Another is 28.400
28.495 SSB Rare DX & DXpeditions Frequently Operate Here — Split
28.600 Old General Callin Frequency – Still used by Old Timers
28.675~28.685 SSTV Operating Frequency — IARU Region 1
28.680 SSTV Operations USA/Canada
28.825 10-10 Backskatter Net – Paper Chasers Net
28.885 6M DX Liaison Frequency — Listen here for 6 Meter DX opening announcements and discussions.
28.945 FAX Operating Frequency
29.000-29.200 AM Operations
29.300-29.510 Satellite Downlinks
29.520-29.580 Repeater Inputs
29.600 FM Simplex – Calling Frequency
29.620-29.680 Repeater Outputs
PSK31

SIX METER FREQUENCIES
50.06-50.09 Beacons
50.0-50.1 CW
50.090 CW Calling Freq
50.06 QRP CW Calling Freq
50.7 RTTY Calling Frequency
50.100 to 50.130 DX Window (USB)
50.110 DX Calling Frequency (USB) Usually Non-USA Stations Call Here.
50.115 DXpeditions Frequently operate CW and SSB here
50.125 USA National SSB Simplex Frequency (USB) Lots Of USA Hams Call Here For Local and Across Country
50.1-50.6 Weak Signal, AM
50.260 is the WSJT Meteor Scatter calling frequency in the USA  
50.270 FSK Meteorscatter
50.300 FM Simplex Calling Frequency (West Coast)
50.385 USB PSK31
50.4 National AM Simplex Frequency
50.885 QRP SSB Calling Freq
51.910 FM Internet Linking
52.525 National FM Simplex Calling Frequency

6 Meter Simplex Frequencies  –51.500  51.520  51.540  51.560  51.580  51.600  52.490  52.510 52.525*  52.540   52.550  52.570  52.590

A Typical 6 Meter Band Plan.

(May Vary From Region to Region)

50.000 – 50.100 CW, Beacons50.100 – 50.300 SSB, CW
50.100 – 50.125 DX Window
50.125 SSB Calling Frequency
50.260 WSJT Calling Frequency50.270 FSK Meteorscatter50.290 PSK31 (SSB)
50.300 – 50.600 All Modes50.300 FM Simplex Calling Frequency (West Coast)50.400 AM Calling Frequency 50.600 – 50.800 Digital50.680 SSTV
50.800 – 51.000 Remote Control
51.000 – 51.100 Pacific DX Window
51.120 – 51.180 Digital
51.120 PSK31 (FM)
51.200 – 51.480 FM Repeater Inputs
51.500 – 51.600FM Simplex
51.620 – 51.680 Digital
51.700 – 51.980 FM Repeater Outputs
52.020 – 52.040 FM Simplex
52.060 – 52.480 FM Repeater Inputs
52.525 FM Simplex Calling Frequency
52.540 FM Simplex
52.560 – 52.980 FM Repeater Outputs
53.000 – 53.020 FM Simplex
53.040 – 53.480 FM Repeater Inputs
53.100 Remote Control
53.200 Remote Control
53.300 Remote Control
53.400 Remote Control
53.500 Remote Control
53.520 FM Simplex
53.540 – 53.980 FM Repeater Outputs
53.600 Remote Control
53.700 Remote Control
53.800 Remote Control
53.900 FM Simplex

VHF TO DAYLIGHT BEACONS, CALLING AND SIMPLEX FREQUENCIES

VHF TO DAYLIGHT BEACONS — 2 meters to 1 centimeter

Repeater Pairs and Simplex Frequencies – From The South Eastern Repeater Association

CALLING FREQUENCIES — Courtesy of Rob Bellville and the Lincoln Amateur Radio Club
2M CW………   144.100 MHz
2M QRP CW Calling Freq —-144.060
2M PSK ……..  144.144 to 144.150
2M SSB……..   144.200 MHz
2M QRP SSB Calling Freq —- 144.285
2M FM………   146.520 MHz (National Simplex Freq)
1.25M PSK …. 222.07 to 222.15
1.25M CW…..  222.100 MHz
1.25M SSB….  222.100 MHz
1.25M FM…..  223.500 MHz
70cm SSB……  432.100 MHz
70cm PSK …..  432.2 and up
70cm FM…….  446.000 MHz
33cm CW/SSB.. 903.100 MHz
33cm FM……     906.500 MHz
23cm FM……    1294.500 MHz
23cm CW/SSB..1296.100 MHz
13cm CW/SSB..2304.100 MHz

VHF/UHF/SHF SIMPLEX FREQUENCIES
2 METERS
146.400, 146.415, 146.430, 146.445, 146.460, 146.475, 146.490, 146.505, 146.535, 146.550, 146.565, 146.580, 146.595, 147.405, 147.420, 147.435, 147.450, 147.465, 147.480, 147.495, 147.510, 147.525, 147.540, 147.555, 147.570, 147.585
——————————————————————————————————————————————-

From the JPLARC in Southern California

144.31 to 144.375, unchannelized, 144.405 to 144.475, unchannelized 144.49 (International Space Station        uplink: transmit here & listen to 145.80 for the downlink)
145.51 to 145.595, unchannelized
145.71 to 145.785 in 15 kHz steps (for fixed simplex base station use, i.e. IRLP, Echo​link)
146.43 (ATV simplex only), 146.52 (national simplex), 146.535, 146.55 146.565 (local ARDF freq.; usable   when there is no “T hunt” in progress) 146.58, 146.595, 147.48, 147.51, 147.525, 147.54, 147.555, 147.57

1.25 METERS
223.420, 223.440, 223.460, 223.480, 223.520, 223.540, 223.560, 223.580, 223.600, 223.620, 223.640, 223.660, 223.680, 223.700, 223.720, 223.740 ,223.760, 223.780, 223.800, 223.820, 223.840

70 CM
445.9125 445.9250 445.9375 445.9500 445.9625 445.9750 445.9875 446.0000 *
446.0125 446.0250 446.0375 446.0500 446.0625 446.0750 446.0875 446.1000
446.1125 446.1250 446.1375 446.1500 446.1625 446.1750
* 446.000 is the National FM Voice Simplex Calling Frequency

900 MHz
National �Traditional� FM Voice Simplex Channels
(also for use with 25 MHz duplex offset radios)
906.000 to 907.000 MHz – channel every 25 KHz
906.500 – National Calling Frequency

1.2 GHz
1294.00 – 1295.00 Narrow Band FM simplex, every 25 KHz
1294.50 National simplex calling channel

QRP CALLING FREQUENCIES — USA

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BANDCWSSB
160MCW–1.810SSB — 1.910
80MCW– 3.560SSB –3.985
80MCW– 3.579 (Colorburst Crystal Frequency)
80MCW–3.710 (Novice)
40MCW–7.040 NOTE 1.SSB –7.285
40MCW–7.035 (QRP-L)
40MCW–7.110 (Novice)
40MCW–7.112 (NorCal crystals)
30MCW–10.106
30MCW– 10.116 (QRP-L)
20MCW– 14.060SSB –14.285
17MCW–18.096SSB –18.130
15MCW–21.060SSB –21.385
15MCW– 21.110 (Novice)
12MCW–24.906SSB –24.950
10MCW–28.060SSB — 28.885
10MCW–28.110 (Novice)SSB –28.385 (Novice)
6MCW– 50.060SSB –50.885
2MCW–144.060SSB –144.285
2MFM–144.585

NOTE 1. The ARRL Band Plan designates this as a RTTY DX frequency. See URL:
http://www.arrl.org/FandES/field/regulations/bandplan.html#40m

QRP CALLING FREQUENCIES — EUROPE

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Buy the Book Today!

BANDCWSSB
160MSSB –1.843
80MSSB –3.690
80MSSB –3.690
40MCW–7.030SSB –7.090
40MCW–7.060
15MSSB –21.285
10MSSB — 28.360
6MSSB –50.285

ISLAND HUNTER FREQUENCIES (IOTA) IOTA CW: 3.530, 7.030, 10.115, 14.040, 18.098 and 21.040 MHz
IOTA SSB: 3.755, 7.060, 14.260, 18.128, 21.260, 24.950, 28.460 and 28.560 MHz
US Island Hunters: 7.250, 14.250 to 14.260 (main), 21.350, 28.450 MHz
CW – anywhere.

COUNTY HUNTERS NETS AND CALLING FREQUENCIES
From The County Hunter Web

County hunters usually can be found participating in the Emergency and Mobile County Hunters Net. This net is in operation almost any time band conditions allow. Generally, these times are 1300 to 2200 UTC, but they can be extended when there are active mobiles.

The primary SSB operating frequency of the county hunting net is 14.336 MHz, and is considered the net home frequency. A secondary net usually is in operation at 7.185 MHz, except between 1545 to 1700 UTC, when it moves to 7.243 MHz. Occassionally, mobile operators will shift to other bands. The usual frequency on 75 meters is 3.903 MHz, while 15 and 10 meters are at 21.338 MHz and 28.336 MHz

The CW operating frequencies of the CW net can be found at 14.0565 MHz on 20 meters and 7.0385 on 40 meters. The frequency on 30m is 10.1225 These nets are not as active but put out a call, and someone will usually come back. The abbreviation “CHN” is used to designate the net.

COMMON PSK31 FREQUENCIES

The plan for PSK31 activity has always been (since PSK31 started) to concentrate activity starting from the bottom edge of the IARU RTTY bandplan, expanding upwards as activity increased. The exception is in the 10 mts band in order to give non full privileges ham to meet. It was defined as 150 Hz above it. Keep in mind that all you need is about 100 Hz as channel separation.

These recommended frequencies are in accordance with the IARU bandplan for region 1. There may be differences for regions 2 and 3

1838.150
3580.150
7035.15 for region 1 and region 3, and 7080.15 for region 2 *
10142.150
14070.150
18100.150
21080.150 (although most activity can be found 10 kHz lower)
24920.150
28120.150

* This is due to the fact that the 7 MHz band is much wider in region 2 (the Americas), and the IARU bandplan reflects this.

HF Portable Calling Frequencies

BANDCW/DATASSB 
160MSSB — 1.8495   LSB (Regions 1 & 3)
160MCW/Data — 1.8075SSB — 1.9125   LSB (USA)
80MSSB — 3.6875   LSB (Regions 1 & 3)
80MCW/Data — 3.5775SSB — 3.9975   LSB (USA)
40MSSB — 7.0875   LSB (Regions 1 & 3)
40MCW/Data — 7.0675SSB — 7.2475   LSB (USA)
30MCW — 10.1175
30MCW/Data — 10.1375
20MCW/Data — 14.0975SSB — 14.3425  USB 
17MCW/Data — 18.1075SSB — 18.1575  USB 
15MCW/Data — 21.1075SSB — 21.4375  USB
12MCW/Data — 24.9275SSB — 24.9775  USB
10MCW/Data — 28.1075SSB — 28.3375  USB
6MSSB — 50.1625  USB

Use this dialog to resend QSL card to a station or
add a email address for a station QSL card delivery

Find Your K6L QSO

Enter your callsign to find event QSOs, request delivery by email, or download a QSL card.