“Nestled deep in the Chequamegon-Nicolet National Forest in Northwest Wisconsin is the small town of Clam Lake. Clam Lake is best known for the excellent hunting and fishing in the area, and of course the herd of elk that roam the countryside. But the elk population is more of a side effect of what I’m going to talk about today. At one time this area was home to a military base and in fact, world war three could have been signaled from its location. I’m talking about Project ELF, the Navy’s program to send messages to submarines deep under water. Let’s explore Project ELF, a cold war relic that still has an impact today.”
target=”_blank” href=”https://qrznow.com/category/ham-radio-antena/”>Antenna
target=”_blank” href=”https://qrznow.com/cushcraft-r9-covers-61012151720304080-meters/”>Cushcraft R9 covers 6,10,12,15,17,20,30,40,80 Meters
This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. Cushcraft achieved a majo… target=”_blank” href=”https://qrznow.com/cushcraft-r9-covers-61012151720304080-meters/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/how-to-build-cheap-wire-delta-loop-antenna/”>How to Build Cheap Wire Delta Loop Antenna
How to Build Cheap Wire Delta Loop Antenna – Love them or Hate them! target=”_blank” href=”https://qrznow.com/how-to-build-cheap-wire-delta-loop-antenna/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/using-a-mobile-hf-antenna-in-a-fixed-location/”>Using a Mobile HF Antenna in a Fixed Location
“Tom, N6AJR, is a older gentleman who has some trouble getting around, and he would like to mount one of his mobile antennas to a metal picnic t… target=”_blank” href=”https://qrznow.com/using-a-mobile-hf-antenna-in-a-fixed-location/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/overview-of-the-chameleon-mpas-2-0-6m-160m/”>Overview of the Chameleon MPAS 2.0 [ 6M – 160M ]
Use the Ideal NOALOX 4 oz. Anti-Oxidant Compound to improve the efficiency of aluminum conductor connections. This compound provides additional inner-… target=”_blank” href=”https://qrznow.com/overview-of-the-chameleon-mpas-2-0-6m-160m/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/mono-5-20-is-a-fullsize-antenna-for-the-5-el-band-of-20-meters/”>MONO 5 20- is a fullsize antenna for the 5 el band of 20 meters
14 MHz OWA yagi beam – MOMOBEAM MONO 5 20 is a fullsize antenna for the band of 20 meters (14 MHz OWA beam) designed for maximum performance. M… target=”_blank” href=”https://qrznow.com/mono-5-20-is-a-fullsize-antenna-for-the-5-el-band-of-20-meters/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/m2-driven-element-schematic-trouble-shooting/”>M2 DRIVEN ELEMENT SCHEMATIC & TROUBLE SHOOTING
To check internal driven element block connections, remove balun, shorting bars, and feed coax/ phasing line. Test Steps: 1.Continuity: between block… target=”_blank” href=”https://qrznow.com/m2-driven-element-schematic-trouble-shooting/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/ioio-antenna/”>IOio Antenna
Scheme nº1: Scheme of the IOio antenna “FM ham satellites can efficiently be worked in two ways, one of them sitting in our armchair with a comp… target=”_blank” href=”https://qrznow.com/ioio-antenna/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/ag6if-built-3dfl-2-meter-full-wave-ham-radio-antenna-works-on-440-70cm-also/”>AG6IF BUILT 3DFL, 2 METER FULL WAVE HAM RADIO ANTENNA, WORKS ON 440 70CM ALSO
You are looking at a AG6IF built 2 meter ham radio antenna. 3 dimensional folded Full wave loop design. Rugged and solid with soldered copper connect… target=”_blank” href=”https://qrznow.com/ag6if-built-3dfl-2-meter-full-wave-ham-radio-antenna-works-on-440-70cm-also/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/category/review/”>Review
target=”_blank” href=”https://qrznow.com/solar-power-for-ham-radio-a-presentation-ham-radio-qa/”>Solar Power for Ham Radio, a presentation – Ham Radio Q&A
This is an educational presentation I gave on setting up a solar system for use with amateur radio. It goes into the components necessary and talks on… target=”_blank” href=”https://qrznow.com/solar-power-for-ham-radio-a-presentation-ham-radio-qa/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/elecraft-kx1-ax1-dodging-the-rain-at-lake-james-state-park/”>Elecraft KX1 & AX1: Dodging the rain at Lake James State Park
Dodging the rain at Lake James State Park target=”_blank” href=”https://qrznow.com/elecraft-kx1-ax1-dodging-the-rain-at-lake-james-state-park/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/rigexpert-aa-2000-best-ham-radio-antenna-analyzer/”>RigExpert AA-2000 | Best Ham Radio Antenna Analyzer?
“Today I get to tell you about the AA-2000 Antenna Analyzer from RigExpert in the Ukraine. This is the Best Ham Radio Antenna Analyzer that I ha… target=”_blank” href=”https://qrznow.com/rigexpert-aa-2000-best-ham-radio-antenna-analyzer/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/yaesu-reveals-the-ftm-300dr-dual-band-mobile-radio/”>Yaesu Reveals the FTM-300DR Dual Band Mobile Radio
The new FTM-300DR provides stable and reliable 50W RF power output. As in recent YAESU mobile transceivers, the FTM-300DR is also equipped with a… target=”_blank” href=”https://qrznow.com/yaesu-reveals-the-ftm-300dr-dual-band-mobile-radio/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/baofeng-bf-f8hp-radio-review/”>Baofeng BF-F8HP Radio Review
Baofeng BF-F8HP “The following video is a detailed look at the Baofeng BF-F8HP dual band portable two-way radio. Topics covered in this v… target=”_blank” href=”https://qrznow.com/baofeng-bf-f8hp-radio-review/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/quick-tip-coiling-coax/”>Quick Tip – Coiling Coax
In this video, from a few years ago, Julian Frost (N3JF), your Ham Radio Sensei, gives a quick tip on how to coil coax so that it doesn’t create… target=”_blank” href=”https://qrznow.com/quick-tip-coiling-coax/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/mls-introduce-the-radio-analog-ptrx7300/”>ML&S Introduce the Radio Analog PTRX7300
target=”_blank” href=”https://qrznow.com/mls-introduce-the-radio-analog-ptrx7300/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/max-gain-systems-32-ft-push-up-mast-quick-look/”>Max Gain Systems 32 ft. push up mast, quick look.
https://mgs4u.com/product/mk-6-series-32ft-masts/ Specifications Maximum Usable Length (Height): 32 feet Length when sleeved: 7 feet and 3 inches Mini… target=”_blank” href=”https://qrznow.com/max-gain-systems-32-ft-push-up-mast-quick-look/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/category/equipment/”>Equipment
target=”_blank” href=”https://qrznow.com/icom-ic-705-full-power-with-the-anker-521-power-station/”>ICOM IC-705 FULL POWER With The ANKER 521 Power Station
ICOM IC-705 FULL POWER With The ANKER 521 Power Station Check out Anker 521 Portable Power Station target=”_blank” href=”https://qrznow.com/icom-ic-705-full-power-with-the-anker-521-power-station/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/sky-221-sdr-hf-160-10m-transceiver/”>SKY-221 SDR HF 160 -10m Transceiver
SKY-221 SDR HF 160 -10m Transceiver With Built-in ADC / DAC For SSB/CW/DIGI/AM/FM 10 Watts SKY-221/V21 / is designed based on SKY-209 with built i… target=”_blank” href=”https://qrznow.com/sky-221-sdr-hf-160-10m-transceiver/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/introduction-for-icom-ah-705-automatic-antenna-tuner/”>Introduction for Icom AH-705 Automatic Antenna Tuner
JH1CBX Masaco introduces AH-705 designed for IC-705. Descriptions ・Covers the 1.8 MHz to 50 MHz bands 30 m, 98.4 ft or longer antenna: 1.8 – 54 MHz, 7… target=”_blank” href=”https://qrznow.com/introduction-for-icom-ah-705-automatic-antenna-tuner/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/ic-705-qrp-sdr-transceiver-update-available-in-japan-around-april-2020/”>IC-705 QRP SDR Transceiver Update, Available in Japan around April 2020
IC-705 There has been massive interest around the world about the new IC-705 QRP SDR transceiver since a concept model was shown at the Tokyo Hamfair… target=”_blank” href=”https://qrznow.com/ic-705-qrp-sdr-transceiver-update-available-in-japan-around-april-2020/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/kx3-low-rider-radio-stand/”>KX3 Low-rider Radio Stand
Product Description KX3 Low-rider Radio Stand This lovely stand has been designed for KX3 owners who don’t have the Elecraft paddle and want a l… target=”_blank” href=”https://qrznow.com/kx3-low-rider-radio-stand/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/expert-electronics-sunsdr2-mb1-transceiver/”>Expert Electronics SunSDR2-MB1 Transceiver
The DUC/DDC transceiver SunSDR-MB1 – this is a new generation of amateur radio. Transceiver combines a classic design, accumulated many d… target=”_blank” href=”https://qrznow.com/expert-electronics-sunsdr2-mb1-transceiver/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/vectronics-hft-1500-oller-tuner-hf-1500w-bar-graph-swrwattmeter/”>Vectronics HFT-1500 OLLER TUNER, HF, 1500W, BAR GRAPH, SWR/WATTMETER
Arc-Free Operation Two heavy duty 4.5 kV transmitting variable capacitors and a massive high current roller inductor gives you arc-free operation up t… target=”_blank” href=”https://qrznow.com/vectronics-hft-1500-oller-tuner-hf-1500w-bar-graph-swrwattmeter/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/first-videos-crt-2000/”>First Videos CRT 2000 !
CRT 2000 Videos – 40 AM / FM channel multistandard European – Power: 4 Watts AM / FM – Supply voltage: 12/24 Volt – 4 storable… target=”_blank” href=”https://qrznow.com/first-videos-crt-2000/” class=”read-more-link”>Read more
The post target=”_blank” href=”https://qrznow.com/the-history-of-communicating-with-submarines-underwater/”> The history of communicating with submarines underwater appeared first on target=”_blank” href=”https://qrznow.com/”>QRZ NOW – Ham Radio News.
