This kit has been designed by David Bowman G0MRF and contains all the parts required to drive a PA on 2.4 GHz for QO-100. The completed board will have a gain of about 25 – 26 dB and for best linearity, should be kept to 200 mW output.
holes in the heatsink. You will also need a pair of SMD tweezers, a soldering iron with a fine tip and some small diameter solder e.g. 0.4 or 0.5mm. Finally, a headband magnifier or similar will help considerably with the SMD parts.
David suggests running the board from 12 or 12.6 volts. At 13.8 volts the supply current and power dissipation increase without any significant improvement in performance
The kit is available from the AMSAT-UK shop https://shop.amsat-uk.org/Filtered_S_Band_Driver_Amplifier_Kit/p3815740_20451527.aspx
The Assembly Guide PDF is available at
https://d11fdyfhxcs9cr.cloudfront.net/templates/383483/myimages/g0mrf_filtered_s_band_amp_kit_assembly_guide.pdf
SOURCE:AMSAT UK
Digital Modes
The Ultimate Portable Ham Radio Computer
Hello Operators. In this episode of the OH8STN ham radio, we are discussing replacing the raspberry pi field computer build, with the Microsoft Surfac... Read more
Get Started with FT8 – An Introduction for Beginners
FT8 is a mode in the WSJT-X software developed by Dr Joe Taylor K1JT. In this video I show how to get started and make contacts with FT8, introduction... Read more
WSJT-X Version 2.5.1 has been Released
The WSJT-X development team has announced the general availability release of WSJT-X version 2.5.1. This release mainly contains i... Read more
WSJT-X Errors? Try This Simple Fix
Does WSJT-X display errors when you transmit with your radio? Try this simple fix which has helped me get rid of those frustrating errors. Read more
WSJT-X version 2.5.1 released
WSJT-X version 2.5.1 releasedThe development team have announced the General Availability (GA) release of WSJT-X version 2.5.1. This release mainly co... Read more
News
Vertical HF Antenna LZAV-5BAND
Vertical HF Antenna made in BULGARIA Bands: 14-18-21-24-28 MHZ Frequency, MHz 14 / 18 / 21 / 24 / 28 Power watts 2,5 kW Radials (number) 4 x 2.05 m VS... Read more
Amateur Operation in 3.45 – 3.5 GHz Segment Must Cease by April 14, 2022
The FCC has established April 14, 2022, as the date by which amateur radio transmissions must stop in the upper 3.45 – 3.5 GHz segment of the amateur... Read more
The Xiegu X6100 or the Icom IC-705? Making a purchase decision!
Xiegu X6100 or the Icom IC-705? Read more
Best GMRS Handheld Radio 2022 | GMRS Radios Compared
GMRS Handheld What is the best GMRS handheld radio for 2022? We saw an explosion of GMRS growth and activity in early 2020, and that growth continues... Read more
WSPR – An Introduction for Beginners | WSJT-X
WSPR (Weak Signal Propagation Reporter) is a mode in the WSJT-X software developed by Dr Joe Taylor K1JT. In this video I show what WSPR is, how to ge... Read more
VHF
BTech 25×2 Dual Band Mini Mobile – Review
BTECH UV-25X2 X-Series Mobile – 25 Watt Dual Band Radio The X-Series Mobiles introduce our new fully customizable Multi-Color LCD display screen... Read more
![Reviewing the Icom ID-52E 5W D-STAR Transceiver [ ICOM UK ]](https://qrznow.com/wp-content/uploads/2022/01/maxresdefault-1-190x122.jpg)
Reviewing the Icom ID-52E 5W D-STAR Transceiver [ ICOM UK ]
The ID-52E Dual-Band D-STAR Digital Transceiver has only been available to buy for just a short time, and you may have already purchased one or be in... Read more
Growing Number of Operators Completing WAS on 222 MHz
After this story was posted, ARRL announced that it has validated the 222-MHz WAS application of John Swiniarski, K1OR, for WAS # 13. His last contact... Read more
EASAT-2 and Hades Satellites with FM Repeaters Scheduled for Launch
The EASAT-2 and Hades satellites are scheduled to launch on January 13 on a SpaceX TR-3 flight, AMSAT has reported, citing information provided by AMS... Read more
New QO-100 satellite antenna for DP0GVN
On December 29, 2021, our new QO-100 SatCom ground station antenna for DP0GVN arrived intact in Antarctica at Neumayer Station III, and as of January... Read more
Equipment
TR-35 4-Band 5-Watt CW Transceiver Kit
DC Input Voltage Vs. Typical RF Output DC In 17 meters 20 meters 30 meters 40 meters 9.5V 4.4W 4.5W 4.9W 4.0W 10V 4.8W 5.0W 5.1W 4.5W 12V 6.5W 7.0W 7.... Read more
FX-4C Transceiver
The FX-4C is a new SDR transceiver developed by BG2FX. It covers all of the major HF bands, and includes wide-band receive capabilities. I... Read more
Runbo P5 4G DMR VHF/UHF
Military grade Tablet with integrated RTK Positioning powers Forensic Mapping, Collision Reconstruction, Land Surveying etc. Running Android, you can... Read more
My Favorite Ham Radio Gear Of 2021 – Gift Guide
Time to look back over 2021 and talk about my favorite gear, why I like it and why I recommend it! Read more
(tr)uSDX Prototype: on-board measurement equipment demo
Short teaser of the on-board measurement equipment. This is by far not the final software, but it shows the hardware features we have, making life for... Read more
![Reviewing the Icom ID-52E 5W D-STAR Transceiver [ ICOM UK ]](https://qrznow.com/wp-content/uploads/2022/01/maxresdefault-1-90x60.jpg)
![Reviewing the Icom ID-52E 5W D-STAR Transceiver [ ICOM UK ]](https://qrznow.com/wp-content/uploads/2022/01/maxresdefault-1-180x120.jpg)
