Questions from the General Amateur Radio exam pool part 22. A simple method for Decibel power calculations. Receivers.
Antenna
GB HF Quad 3 el / 3 band
Details GB HF Quad 3elm 3band 10-15-20m Turning:3,80m (12,4ft) Boom:5,50m (18ft) Fiberglass rod:4,00m Gain:9db F/B:20/25db F/S:20/30db VSWR:1:1:1 on R... Read more
KT36XA – M2 Antenna – TriBand 10/15/20m
The M2 KT36XA is the result of many hours spent on perfecting the original KLM KT-34XA through computer optimization confirmed by range and actual on-... Read more
JK Mid-Tri-40 2 Elements on 40M / 3 Elements on 20M/ 4 Elements on 15M / 5 Elements on 10M / 26 Foot Boom
The JK Mid-Tri has been designed for Hams looking for a Mid level, cost effective but high quality Tribander antenna. This Tri-Bander’s... Read more
The 10/15/20 Meter Trap Vertical Antenna
“This antenna project came out very nice. It’s a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 met... Read more
W8AMZ 80-6m OCF Dipole / Windom Multi-Band Antenna w/ 4:1 Balun
Introducing the W8AMZ 80–6m OCF / Windom Multi-Band Antenna using a 4:1 Balun and rated for 2 KW. The SWR is generally below 1.5:1 on 6, 10, 20, 40... Read more
VHF
50 MHz Contest allowed in DL
With an update of the original 2006 decree the contest ban has been temporalily lifted within the frequency band 50.08-51 MHz, so German amateurs may... Read more
Motorola APX™ 8000
With 4 RF bands and multi-mode system access, the APX 8000 knows no limits when it comes to interoperability. Whether it’s loud or windy, wheth... Read more
![Automated Portable Station for tracking the orbit of ham satellites [Video]](https://qrznow.com/wp-content/uploads/2017/05/hamlince-190x122.jpg)
Automated Portable Station for tracking the orbit of ham satellites [Video]
Automated Portable Station for tracking the orbit of ham satellites, meteorologic satellites and International Space Station (ISS). The transce... Read more
BaoFeng Tech BF-F8HP
BF-F8HP: “BaoFeng’s Only TRI-POWER (1, 4, 8 Watt)” ExClusive Features that separate it from the UV-5R Series: It has 3 Power Levels... Read more
YANTON DM-980
YANTON DM-980 Built for dual-mode (Digital+ Analog) 1000Channels Versatile Voice Call (Private call,group call, all call and emergency call) Digital e... Read more
Equipment
MRF101AN: 100 W CW over 1.8-250 MHz, 50 V Wideband RF Power LDMOS Transistor
These devices, MRF101AN and MRF101BN, are designed for use in HF and VHF communications, industrial, scientific and medical (ISM) and broadcast and ae... Read more
Ameritron AL-82 AMPLIFIER – TWO 3-500Z
Ameritron AL-82 Ameritron`s Dual 3-500Z AmplifierThe Ameritron AL-82 Linear Amplifier is designed to give you years of trouble free service at the ful... Read more
Alpha 4510A 3KW Wattmeter with 160M to 6M coverage
Alpha 4510A QRP TO QRO. Our Wattmeters can measure from 200 milliwatts to 5 kilowatts, from 160 meters to 6 meters with no slugs! They displa... Read more
Ten- Tec 507 Patriot – Open Source Arduino-based SSB/CW QRP Transceiver
The 507 Patriot utilizes a chipKIT Uno32 prototyping board which give users access to an Arduino-based programming environment. With its 32-bit... Read more
RPi3 image for SDRplay
SDRplay “This release (V0.4) is a complete image for the Raspberry Pi 3 with a range of pre-built applications for SDRplay devices. Please note... Read more
Review
DMR Handheld Review: TID TD-DP580
TID TD-DP580 DMR Radio UHF Radio Ham Radio Digital 2 Way Radio This DMR radio is reasonably cost effective due to its high quality and ergonomic desig... Read more
CQ SERENADE! Music
Words and music by the late Maurice Durieux VE2QS and VE2BR. Played by VE2QS and his orchestra. Produced around 1951. Source:https://swling.com... Read more
MFJ-1924 Programmable Screwdriver Antenna Controller
Programmable Screwdriver Antenna Controller 10 Memories. . . Super Accurate. . . AutoPark . . . StallProtector. . . Super bright LEDs Tuning your mobi... Read more
