
“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.”
Antenna
HF Loop Antennas – ARRL The Doctor is In [ PodCast ]
“HF Loop Antennas” is the topic of the just-released episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Enginee… Read more
Light Beam Plus Antenna – LBP-20M
The support structure of the Light Beam Plus Antenna series is very different from that of any other antenna that is currently on the market. Manufact… Read more
Alinco EDX-2 Automatic Random-Length Antenna Tuners
Alinco EDX-2 Automatic Random-Length Antenna Tuners are designed to work with select Alinco HF transceivers. These antenna tuners may be used for non-… Read more
Dual Band Moxon Antenna 10m/6m
Dual band Moxon antenna (2 + 3 elements) for 10m and 6m, ideal for Sporadic-E or DX. Dualband Moxon Antenna for 10 and 6m Not only for Sporadic-E QSOs… Read more
Review
Handheld Ailunce HD1 Retevis Dual Band DMR – Review
“Here is the Ailunce HD1, or what I call the Retevis HD1. It is a dual band, 10w/8w Handheld Analog and DMR, with GPS and IP67 waterproofing. A… Read more
IC-7610 Review with Amateur Logic and Icom’s Ray Novak
George and Tommy, from Amateur Logic review the IC-7610 with Ray Novak from Icom. During their review they discuss the radio’s key features and… Read more
Comparing the lab599 Discovery TX-500 with the Elecraft KX2. Which one should you choose?
Comparing the lab599 Discovery TX-500 with the Elecraft KX2. Which one should you choose? Read more
Equipment
TEN-TEC RX-340 Commercial Monitor Receiver
The TEN-TEC RX 340 is a multi mode, general coverage synthesized receiver utilizing extensive Digital Signal Processing. DSP brings the perform… Read more
ICOM IC-705 [New]
ICOM IC-705 IC-705 has just been unveiled by Icom at the Tokyo Ham Fair. This is a portable HF/VHF/UHF transceiver featuring SDR technology, internal… Read more
DX Engineering BRAND NEW Catalog
Autumn/Winter 2016 CQ DX! If you had an unlimited budget, how would you outfit your Dream Station? The DX Engineering team was hanging around the radi… Read more
ACOM A2100 HF + 6M Linear Amplifier
ACOM A2100 Easy to operate The TRI is a powerful tuning aid that, together with the automatically controlled input attenuator, helps the operator to… Read more
The post Project E.L.F. – The history of communicating with submarines underwater appeared first on QRZ NOW – Ham Radio News.