HA8ET SNR measurement 144 MHz preamplifier
To improve reception on the Kenwood TS-2000, I have put an LNA from HA8ET to 144 MHz. The video describes SNR measurement with the SDR Console program on this setup.
VKV PA – January 2023
How to calculate the sensible temperature? For a radio amateur, apparently in a binary way: I can stand it / I can't stand it. This is exactly what the January VKV PA looked like near the village of Brestovec.
HINT: airplane scatter...
VKV PA – december 2022 or OM3KSI in the log!
One of the challenges of VKV PA is trying to get as many multipliers as possible, i.e.. of stations from locator squares. In rare KN08 behind the wall of hills and...
VKV PA - November 2022
How to make over five thousand points in VKV PA? A practical guide from A to Z. It starts with an alarm clock at six o'clock in the morning. After documenting the rest...
VKV PA - October 2022
The Behringer XM8500 did an excellent service. The dynamic microphone is designed for voice, to which the frequency and direction characteristics are adapted. This vocal microphone is often compared...
OM VHF LOW POWER Contest 2022
It is a challenge to work with low power, QRP, on VHF, and since I like a challenge, I was looking forward to the OM VHF LOW POWER Contest. I was thinking...
VKVPA - July 2022
Have you ever seen ON4KST chat on a mobile phone display?? The July VKV PA was again from Vlči vrch in the municipality of Horná Súča..
VKVPA – June 2022
Something new again, again something does not work and a record result of VKV PA. I tried the Kenwood TS-2000 in the previous round. It is known about him, that...
Electret microphone headphones for Kenwood TS-2000
I don't like handheld microphones. Headphones with a microphone give me the advantage of two free hands, a certain isolation of noise from the surroundings and at the same time a constant distance of the microphone from the mouth ....
SDR spectroscope for R2CW VHF transceiver
R2CW is a VHF CW / SSB transceiver with excellent parameters. This predestines it as a contest device. The disadvantage of this transceiver is, that it does not have some conveniences of modern equipment ....
VKVPA - May 2022
VKV PA again from the same place as in the March round, that is, from below Štrbské Pleso, KN09AC. Well this time with 4x5el.DK7ZB yagi antenna and Kenwood equipment ...
DK7ZB yagi antenna 144MHz stack for portable
How to achieve maximum gain of portable antennas at 144MHz? Unlike single yagi, which would have to have a long boom and a considerable height above ...