“Let us understand what happens if you have a hill or mountain in the way of your radio signal because I recently published a video showing you what happens if you have a slope going towards the target! This is the other way around. We can calculate the angle between you and the hill and then work out the losses. 73. Callum.”
Antenna
Portable with the Slidewinder DX Multiband HF Antenna
Slidewinder DX Ground Spike Antenna kit. Designed as part of the Slidewinder DX Range of products, For base- portable- travel- backpacking antenna sys… Read more
Amateur Radio Tower Stand – KG0ZZ’s
A close up view of my ham radio tower and tower stand. The tower is five sections of Rohn 25-G tower. The top section is 8 feet long making the… Read more
DCU-3 Programmable Rotator Controller
DCU-3 Programmable Rotator Controller6 Programmable memories; Point & shoot and manual control!DCU-3 Digital Controllers feature six presets for… Read more
Stealth Antennas [ PodCast ] – Everything Ham Radio
“Hello everybody and welcome back to the Everything Ham Radio Podcast! In this episode we are going to talk about Stealth Antennas, we talk abou… Read more
New Antenna 50 and 70MHz – 4 el Moxon
EAntenna 5070MOX Only 86cm (34 inch) boom lenght with 2 elements Moxon in 4m and another 2 in 6m band. The gain is 6,03 dBi in 50 MHz. and 5,95 dBi in… Read more
Introduction into Theory of Direction Finding
Introduction Applications of direction finding While direction finding for navigation purposes (referred to as cooperative direction finding) is becom… Read more
Review
MFJ-1708SDR review – Share your antenna between your transceiver and an SDR
“With all the low-cost performance SDR available these days, we can have a lot of fun experimenting with it. But we need antenna, with the MFJ-1… Read more
Measures The Loss In Coax Connectors and 100 Feet of RG8X by W6LG
Jim W6LG uses a signal generator and a panadapter to measure the loss in 30 coax connectors at 14 and 52 mhz down to a fraction of a db. You might be… Read more
“Automatic Gain Control” is the topic of the latest episode of the “ARRL The Doctor is In” podcast
“Automatic Gain Control” is the topic of the latest (February 1) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a… Read more
IC-7610 Technical Report Vol. 3 (English Version)
Released the final issue of IC-7610 Technical Report, which explains the circuits used in the IC-7610 and some excellent functions of IC-7610. Read more
Heil HS2 Hand PTT switch for 2 radios with MFJ-1263
“In this video you will find information about the Heil HS2 handheld PTT switch that I use with my 2 Kenwood radios (TS-2000 and TS-990), thanks… Read more
ELAD FDM-DUO SDR QRP Quick Tour and Review
FDM-DUO is a SDR tranceiver that offers the possibility to operate STand-alone like traditional radio or attached to a Personal Computer discovering t… Read more
How Do You Know Your Antenna & Radio Are Setup And Working Correctly?
“A question you may have asked yourself, “Is my radio working? I don’t hear anyone!” Or worse, you can hear other stations, bu… Read more
Ham radio & 3D printing – A very portable table stand for the Icom IC-705.
Ham radio & 3D printing – A very portable table stand for the Icom IC-705. Read more
Equipment
Multitalent QUADRO – Cutting – insulation stripping – twisting – crimping.
The unmatched integration of four different functions: Cutting – insulation stripping – twisting – crimping. The quick reloading of connector sleeves… Read more
BAOFENG BF-888S UHF FM
BAOFENG BF-888S Product Features and Technical Details Product Features 50 CTCSS/105 CDCSS/VOX Function Voice Prompt/PC Programming/voice scramble/enc… Read more
ELECRAFT KX3 SHIELD KITS
LEFT-SIDE PLATE*1PCS RIGHT-SIDE PLATE*1PCS EXTERNAL RADIATOR*1PCS(BLACK/RED) PROTECTIVE COVER*1PCS CANVAS BAG*1PCS More Info:Link Read more
XIEGU X6100 HF TRANSCEIVER | FULL MODE | SDR RADIO
X6100 is an ultra-portable shortwave transceiver. It adopts the SDR software radio platform architecture of excellent performance, which carries power… Read more
HAL1200 Atlantic – HF linear amplifier
HF linear amplifier Specifications Frequency : 1.8 ~ 54 MHz, all Amateur Bands including WARC Automatic Band Change: only PTT/TXGND Signal, or with de… Read more
Ham Radio GoBox Update 2018 by DL1GKK
Ham Radio GoBox by Karl-Heinz Krawczyk “In October 2017 I fulfilled my wish to have a digital amateur radio station as compact as possible in on… Read more
Xiegu X108 QRP Transceiver Kit 9 Bands – AM – SSB – CW
Xiegu X108 QRP Transceiver Kit 9 Bands – AM – SSB – CW 1 – 20 watts The X-108 is a single-conversion transceiver for all ama… Read more
Anker’s massive 120,600mAh portable battery weighs 9 pounds
Most portable batteries pack a few thousand mAh of power into a pocket-sized package. Not this one. It’s an overgrown brute that boasts a ridiculous 1… Read more
The post Radio Signals: What happens if there’s a hill in the way? appeared first on QRZ NOW – Ham Radio News.