This video answers the question – “Can an antenna switch be used in reverse, to switch multiple radios into a single antenna system and, is it safe?” The answer is – YES, in most cases – as long as the switch grounds the unused inputs, which is usually the case. The video takes a look at the numbers, describes how much isolation is needed, and then shows how to measure the isolation using a NanoVNA, and finally shows the results using a couple of HF radios.
target=”_blank” href=”https://qrznow.com/category/ham-radio-antena/”>Antenna
target=”_blank” href=”https://qrznow.com/4-x-5el-yagi-20m-stack/”>4 x 5el Yagi 20m Stack
target=”_blank” href=”https://qrznow.com/4-x-5el-yagi-20m-stack/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/e-z-o-antenna/”>E-Z-O Antenna
A Successful Alternative to the Cubical Quad he revolutionary antenna you see pictured, the E-Z-O, was created by N8PPQ as the result of his efforts t… target=”_blank” href=”https://qrznow.com/e-z-o-antenna/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/antenna-rotator/”>Antenna Rotator System ARS-USB Azimuth
Antenna Rotator System is the most popular and universal engine management antenna rotator. With this new generation that includes a USB port,… target=”_blank” href=”https://qrznow.com/antenna-rotator/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/grounding-a-counterpoise-on-end-fed-half-wave-antenna/”>Grounding a Counterpoise on End-Fed Half Wave Antenna
Laurence, WA2TLY, is asking some questions about a few aspects of the EFHW 80-10 antenna, Why they are there and what they are for? target=”_blank” href=”https://qrznow.com/grounding-a-counterpoise-on-end-fed-half-wave-antenna/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/80-meter-dipole-install-via-drone/”>80 Meter Dipole Install via Drone
Installing my 80 Meter Dipole with my DJI Mavic was probably not the smartest thing I’ve ever done but hey, it’s me we’re talking ab… target=”_blank” href=”https://qrznow.com/80-meter-dipole-install-via-drone/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/category/review/”>Review
target=”_blank” href=”https://qrznow.com/yaesu-ftdx10-unboxing/”>Yaesu FTdx10 Unboxing
ML&S display the very first unboxing of the FTdx10 in the United Kingdom. As the U.K’s only official Yaesu independent factory appointed dis… target=”_blank” href=”https://qrznow.com/yaesu-ftdx10-unboxing/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/baofeng-uv-9r-tp-18-watt-power-testing-uv9r-plus-ht/”>Baofeng UV-9R TP 18-watt Power Testing | UV9R Plus HT
Baofeng UV-9R TP 18-watt HT Ham Radio Unboxing and power testing – let’s see if this 18-watt HT does what it is advertised to do! target=”_blank” href=”https://qrznow.com/baofeng-uv-9r-tp-18-watt-power-testing-uv9r-plus-ht/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/icom-ic-7300-vs-k3s-elecraft-videos/”>Icom IC-7300 vs K3s Elecraft [ Video´s ]
Tested at night on 40m with QRM from BC stations. All controls set equal. Identical speakers. Antenna switched A/B. Keep in mind that I can fiddle wit… target=”_blank” href=”https://qrznow.com/icom-ic-7300-vs-k3s-elecraft-videos/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/testing-baofeng-harmonics-is-ham-radio-interest-declining/”>Testing Baofeng Harmonics & Is Ham Radio Interest Declining?
target=”_blank” href=”https://qrznow.com/testing-baofeng-harmonics-is-ham-radio-interest-declining/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/power-supplies-the-doctor-will-see-you-now-arrl-postcast/”>Power Supplies – The Doctor Will See You Now! [ ARRL PODCAST ]
Every Amateur Radio stations needs a power supply, but not all supplies are created equal. “Power Supplies” is the topic of the latest (July 20) episo… target=”_blank” href=”https://qrznow.com/power-supplies-the-doctor-will-see-you-now-arrl-postcast/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/category/equipment/”>Equipment
target=”_blank” href=”https://qrznow.com/palstar-sp30h/”>Palstar SP30H
The Palstar SP30H ultimate communications speaker is a custom engineered speaker designed to match the sonic characteristics of the human voice. The… target=”_blank” href=”https://qrznow.com/palstar-sp30h/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/qrp-labs-new-qcx-qrp-cw-wspr-transceiver-kit/”>QRP Labs new QCX+ QRP CW/WSPR transceiver kit
QRP Labs has just announced the QCX+ which as the name implies is an upgraded version of the very popular QCX line of transceivers To date almost 10,0… target=”_blank” href=”https://qrznow.com/qrp-labs-new-qcx-qrp-cw-wspr-transceiver-kit/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/dc9dz-project-tsunami-40k-power-amplifier-pa-using-4cx15000aa/”>DC9DZ: Project Tsunami 40K – Power Amplifier (PA) using 4CX15000AA
Data of DRESSLER Tsunami-40K RF Linear Amplifier Frequency bands all HF amateur bands 1.8 MHz to 29.7 MHz Power supply 3 power supply transformers 200… target=”_blank” href=”https://qrznow.com/dc9dz-project-tsunami-40k-power-amplifier-pa-using-4cx15000aa/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/elecraft-k4-update/”>Elecraft K4 Update
by Eric Swartz May 19, 2020 Hi Everyone, At Elecraft, like many of you, we are in our 9th week of shelter in place. This has been tough on all of us…. target=”_blank” href=”https://qrznow.com/elecraft-k4-update/” class=”read-more-link”>Read more
target=”_blank” href=”https://qrznow.com/icom-ic-9100-review-video/”>Icom IC-9100 Review [ Video ]
George Thomas, W5JDX, of Ham Nation and AmateurLogic.tv provides an in depth review of the Icom IC-9100 target=”_blank” href=”https://qrznow.com/icom-ic-9100-review-video/” class=”read-more-link”>Read more
The post target=”_blank” href=”https://qrznow.com/safely-using-a-coax-switch-to-connect-multiple-rigs-to-a-single-antenna-system/”>Safely using a coax switch to connect multiple rigs to a single antenna system appeared first on target=”_blank” href=”https://qrznow.com/”>QRZ NOW – Ham Radio News.
