UB5UG snake antenna

N.B.
1. Antena has horizontal polarization!
2. Antena is scalable for other bands too.
3. You can add more bars to get additional gain - 1.1 dB per pair:
5 bars (standart) 6.2 dBd
7 bars 7.42 dBd
9 bars 8.45 dbd

SWR remains within acceptable range (<1.6 within 70cm band).

435 MHz antenna for AO51

AO 51 435MHz antenna by DL7KM

DL7KM 435 Mhz antenna for AO51

Miscellaneus

The microscope

SFH 203 A

432MHz plumbers party

YL1042 PA with filter

400 THz, 144,150 modulator

Laser ray could be obtained from 25 meters, it is switched on a squelch in the receiver to hear its own noise. In 120-160 meters laser ray with lens close receivers noise. 144,15 MHz modulator should be located in the metal housing. Moduliatorius buvo isbandytas sutemus Saules gatveje, pasvietus lazeriu i tamsu kiema, mazdaug uz 160 metru. Alinko RX triuksmus lazerio spindulys linzes pagalba , uzdare 59...Salia lazerio spindulio buvo pastebeti paslaptingi traskesiai, kuriuos bandant pagauti buvo bandyta ijungti ketvircio bangos antenos laida, kuris nukrito tamsoje i ruda zole...ir ten liko nesurastas visam laikui. Paslaptigus triuksmus teks gaudyt kita karta. Is sio bandymao....vieni nuostoliai , pamesta antena, iskrito trintukas is balkono , kuris reme lazeri, patikslindamas jo justiruote, sukelt skandalo nepavyks, kai nieko nepadarai , pas mus tai madinga "priskandalinus" vis sioks toks darbas buna padarytas...

400THz with 14 MHz CW modulator

14MHz modulator with laser should be brought in 10 meter from receiver. Telegraph signal without lens is clear for zooming the lens used.

Moxon hand held 145 MHz antenna

Moxon hand held type antenna made from 3mm wire with 3,9 dBd is mechanikaly stable, 30cm shorter than two element dual band antenna. It is posibile to connect it to radio via BNC. Antenna Moxon was described by Julian G4ILO

Hand held dualbander antenna

RZ9CJ design, made by LY3LP..

Hand held 145 Mc dipol

No problem QSO 50km

Luxeon star AM ATV transmitter

Old good idea by Trewor Braun ,G8CJS, AM ATV video modulator, used to modulate luxeon star 5W LED...now used to modulate TV signal...This TV modulator is available for transferring "Ronja" digital information...

QRP 400 THz RX

400 THz plumbers party

Luxeon star with ghost.....

QRZ

Miscellaneus