Ham Radio - QRP
I have made CW and AM QSOs with other amateur radio operators whose equipment ranged from home-brew xmtr/rcvrs, Drake and Collins radios as well as shiny new Icom 7300 and Flex radio systems. A modern amateur radio (typically a HF model) can be used to communicate with radios built 100 years in the past.
Learn Morse Code - Ham Radio - QRP
QRP radios operating CW are the ultimate fallback mode for emergency communication. But the real reason to learn Morse code is that it's fun and unique. Learning it can be the mental equivalent of climbing a mountain and, most importantly, all the cool kids are doing it.
Ham Radio - QRP: November 2015
CW mode allows amateur radio operators to communicate world wide at QRP (low power) and QRPp (very low power) levels. CW's power density and simple transmitter/receiver requirements provides for simplified station operations and ideal emergency operations.
A visit with a QRP contest station - Ham Radio - QRP
2016年3月13日 · 160m Spring Stew Perry Contest - QRP style I had the opportunity to visit with Paul Stroud AA4XX as he worked the early hours in the 160m Spring Stew Perry Contest . Paul is an avid CW operator dedicated to QRP and QRPp operations.
Voltage regulation, tube style - Ham Radio - QRP
2018年2月24日 · A lot of resistors in old tube-type radios were 20% tolerance so don't expect the voltages to be that precise. Tube rigs had much more variability than modern solid state circuits. For the unregulated voltages, the precise voltage will depend component tolerances, tube health, and line voltage.
The SKCC is a rewarding group - Ham Radio - QRP
2016年12月12日 · The SKCC (Straight Key Century Club) is a fast-growing and well run group dedicated to supporting and promoting mechanical key, CW operators. Mechanical CW keys are pretty much anything other than a paddle and electronic keyer. When making SKCC contacts you can use a straight key, a side-swiper (cootie key) or a bug to count towards your contacts.
Ham Radio - QRP: 2017
Straight Key Night -- 2018. Don't forget January 1st, 2018 starting 00:00 GMT (7pm EST Dec 31) is the start of Straight Key Night 2018. Bring your tired, old equipment on-air and mash your favorite mechanical key. This is not a contest, just an opportunity to make lots of fun QSOs.
The Amazing 80m Multi-band Windom - Ham Radio - QRP
2015年11月6日 · OCF Dipole resonant on 7 bands. The Windom (or OCF Dipole if you prefer), offers a true multi-band, experience without much use of a tuner. The tuner in the images below is in BYPASS mode. I'm using it to demonstrate the resonance of the Windom on different bands. If you're not familiar with reading a cross-needle meter, the needle pointing to ...
Squeeze Keying - Iambic mode operation - Ham Radio - QRP
2017年10月22日 · Iambic keying saves strokes. Comparing the number of strokes necessary to key all letters of the alphabet and all digits with different keys and keyers yields the following result, provided the operator is consistently squeezing with twin-lever keyers: straight key 132. semi-automatic "bug" key 100.
The N3ZN Iambic CW Paddle - Ham Radio - QRP
2016年3月4日 · ZN series iambic keys Specs. All stainless steel screws. Large 10-56 adjustment screws for both magnetic return and contact points ( the straight key uses 8-32 screws and a spring for return) Ball bearing lever return-3 ball bearings per lever arm. Magnet lever return individually adjustable.