Getting started on 10 GHz band F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band Overview On 10 GHz, not many hams did build anything at industrial scale. Before 1995 the only choice was the 10 GHz SSB-Electronic transverter Kits and also total assemblies, but only a few « on shelf » ready to use ones. After 1997, DB6NT did really democratise the SHF transverter. Not only on 10 but from 1.3 to 24 GHz and also above. In 2008 the 3rd generation with a 106.5 MHz self Quarz oscillating LO is replaced by a tcxo locked to a 10 or 100 MHz precision reference frequency (also GPS referenced) F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band Abstract 1- 10 GHz beacons, SCPs and QSOs from JN18gr 2- 10 GHz SSB-Electronic transverter (<1995) 3- 10 GHz DB6NT transverter Version 1: schematics & practical LO frequency drift Versions 2 and 3 : Rx Nf and principally LO stability improvements 4- Indoor, then outdoor operations with a single 49 cm Procom dish 5- FT-817nd modifications - Positive tension added on Tx mode to the 144 MHz coaxial cable for PTT purposes S-meter desensibilisation 6- Prime-focus & offset dish gain comparaison 7- IK1GEX 5.7 / 10 GHz double horn Isolation measures between both bands 8- Antenna settings of well known french « hyper » dXers F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 1- 10 GHz beacons and QSOs with 1W F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz beacons Beacons direction from JN18gr QTH F (MHz) D (Km) Dir FT-817nd T>30 min Comments F5XBD/77 JN18js Favières .072 17 73° .0775 F5HRY  .072 F5ZTR/60 JN09xj Beauvais .842 88 329° F1XAI/45 JN07wt Orléans .865 115 207° .838 .855 .858 .842 .851 prévue sur .860 F5ZWM/19 JN05we .919 395 188° F1XAU/21 JN27ih .825 165 133° F5ZPS/33 IN94qt .282 496 210° F1URI/73 JN35kt Mt Blanc .928 461 F6KPL/50 IN99io .315à.321 290° Pas dans la table ! LX1DB JN39co .893 282 69° HB9EME JN36lx .866 277 33° Essais HB9AK JN47li .985 ON?? JO20ht .875 572 82° DB0UX JN59bd .882 DB0JK JO30lx .874 401 50° Synthé règlé à 10368.100 MHz donne 144.110 MHz Appel sur .100 réel ou .125 affichés Voie de service 144.390 MHz Appel sur 10368.100 MHz F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz beacons French 10 GHz beacon list 10368.072 MHz Constantly 50% time Occasionally (RS) QRT définitif  dpt 43 ? HB9EME/b 10368.866 MHz F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz rXed beacons from JN18 : geographical positions Constantly 50% time Occasionally (RS) F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz SCPs for RS Example of qso with F6DRO via scp in JN26 SCP = scatter point RS = rain scatter (thick thunderstorm cumulonibus) F5DQK F6DRO F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz QSO’s June /July 5008 from JN18gr via tropo & principally RS F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 2- 10 GHz SSB-Electronic 2 separate Rx and Tx mixers boxes 2.556 GHz self oscillating LO with 106.5 MHz quarz Pout > +20 dBm or 100 mW F5DQK August 2008 Getting started on 10 GHz band

10 GHz SSB-Electronic Transverter Getting started on 10 GHz band Rx converter scheme F5DQK August 2008 Getting started on 10 GHz band

10 GHz SSB-Electronic Transverter Getting started on 10 GHz band Rx converter layout F5DQK August 2008 Getting started on 10 GHz band

10 GHz SSB-Electronic Transverter Getting started on 10 GHz band Tx converter scheme F5DQK August 2008 Getting started on 10 GHz band

10 GHz SSB-Electronic Transverter Getting started on 10 GHz band Tx converter layout F5DQK August 2008 Getting started on 10 GHz band

10 GHz SSB-Electronic Transverter Getting started on 10 GHz band 2.556 GHz local oscillator F5DQK August 2008 Getting started on 10 GHz band

10 GHz SSB-Electronic Transverter Getting started on 10 GHz band Boxed transverter XTM-1 above XRM-1 under SMA/WR-90 transition 24V TRx relay 2.556 GHz LO Output PA DC/DC converter F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 3a- 10 GHz DB6NT transverter vers 1 1 Rx and Tx box same 2.556 GHz self oscillating LO with 106.5 MHz quarz Pout = +7 dBm or 5 mW That was my choice F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version 1 Tx (1991) LO 10.224 GHz 15mW 2.556 GHz X4 buffer 10.368 GHz 144 MHz Rx V1 : Pout 10 à 15mW, NF=3dB F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version 1 layout NF=3dB Pout 10 à 15mW 10.368 GHz resonators 5.112 GHz resonator F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version 1 hardware 2.556 GHz LO in F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Outside 2.556 GHz MKU25 LO with 106.5 MHz quarz X4 inside the transverter F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Alternative to constant LO drift with temperature: JWM Model 2556-ALN phase locked oscillator Ext lockin output 2.556 GHz +17 dBm 10 to 12 dB attenuator needed 10 or 100 MHz ref in Price 289.95 $ F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter 5 to 200 mW first amp 16 dB gain F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter HEMT Nf=1 dB, gain=24 dB preamp F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter 10 GHz transverter inside view -0.7 dB !! -0.3 dB +12V DC relay LO = 2.556 GHz soit (106.5 x 24), P=10 mW -0.3 dB +12V TRx relay -0.08 dB DG1VL preamp 23 dB, Nf=1.3 dB 0.1Win/1.3Wout 11 dB amp I=0.5A 5mWin/200mWout 15 dB amp Pin 144 MHz <= 2W Pout 10 GHz fiche N 29.8 dBm ou 0.76W Pout direct 31.02 dBm ou 1.26W Rx 12V 180 mA, Tx 1.15 A DB6NT transverter V1, Pout=15 mW F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter 10 GHz transverter : how getting 0.5 dB more on Tx -0.18 instead of -0.7 dB Transverter version 1 F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Oscillator drift after ½ hour heating compared to F5XBD/b 77 frequency T °C Oscillator drift (kHz) +21 +10 +25 +30 -20 F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 3b- 10 GHz DB6NT transverter vers 2 Whole 10.224 GHz LO with 106.5 MHz quarz inside External 106.5 MHz LO input for far better stability Pout = +23 dBm or 200 mW F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version 2 (2003) NOW: like V1 and -Pout=200 mW, nF=1.2 dB -LO totally on same board Option 1 is: 106.5 MHz external ocxo fitting a subsidiary SMA connector F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version 2 layout F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version 2 hardware 106.5 MHz separate ocxo LO feeding F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter version : ocxo schematic (Eisch-Kafka) F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 3c- 10 GHz DB6NT transverter vers 3 LO=106.5 MHz ocxo at 40°C External 10 MHz ref input for rock stability (ocxo or GPS) Tx Nf improvement F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter 10 GHz DB6NT Transverter Transverter version 3 (2007) NOW: like V2 and 106.5 MHz with internal PLL LO with internal oven Ext 10 MHz ref input for frequency stability like the GPS F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 4- 10 GHz indoor & outdoor tryings F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter First RS tryings with open window in the shack room Alu fixation tube for definitive 3 to 5° elevation DC bias-tee for 1st Tx tries 25M DC wire for ΔV measures in future mast mounting F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Transverter DC pinning F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Summer configuration « complement » F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Zoom on 10 GHz ensemble Procom Φ48 cm prime-focus dish F/D=0.4 F=19.2 cm Gain 27 dBd (37 dBd à 24 GHz) Elévation 3 à 5° F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter DC & RF measures Transverter 10 GHz sous 12V : Rx 180 mA Tx, 1.15A Pout max avant transition guide –3 + 32.82 = 29.82 dBm ou 960 mW Pout sortie directe ampli 1.2W 29.8 dBm ou 0.76W 12.77V descendent à 12.2 V dans 25 m câble 2 x 1.5 mm2 ΔV = - 0.52V Pin 144 MHz <= 2W Pout 10 GHz fiche N 29.8 dBm ou 0.76W Pout direct 31.02 dBm ou 1.26W Le point de rain-scatter se comporte comme une antenne avec un diagramme de rayonnement qui est celui d'un dipole, dont l'un des max est orienté vers l'observateur (diagramme en 8). Ce diagramme présente des nuls à 90 degrés et évolue en sinus carré ( en densité de puissance), çàd que l'énergie reçue est plus ou moins forte selon où se trouve le correspondant. Dans les cas où ceux-ci sont du côté des 90°+/- 10 deg, ça ne marche pas . F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 5- FT-817nd mods for Tx purposes Gives a positive voltage in the 144 MHz coaxial while tXing F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter FT-817nd mod for DC addition in coax while Txing (upper side) Or « reversal PTT » !! BNC socket 4.7 kΩ 1 nF serial cap DB6NT transverters need +V in coax cable for switching in Tx mode !! F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter FT-817nd desensibilisation procedure With only noise, S-meter then drops doww from S8 to S1 to the 144 MHz Rx TX OFF - appuyer simultanément sur A B et C et conserver les 3 BP enfoncés mettre en marche le 817 envoie une série de bips et passe en mode config - sélecteur à gauche pour faire défiler les menus - choisir menu 5 VHF RXG  ( gain Réception en VHF )  valeur initiale=128 - descendre à la valeur 56  S1 de QRM ce qui ne saturera plus le FT-817nd Atténuation pour ramener S8 à S1 dans la ligne 144 MHz : environ 14 dB F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter FT-817nd automatic CW with MixW2 : configuration FT-817nd en mode USB F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 6- 10 GHz dish comparaison F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Frequency stability measures after ½ hour Appareil utilisé F lue (GHz) Après Synthé HP 8672a 10368.00 Compteur Marconi 2440 10368.0000 5 min à TCXO Analyseur spectre Tektronix 494 span 50 Hz 10367.999 20 min Analyseur spectre Tektronix 492bp span 200 Hz 10368.0495 1H dérive naturelle Synthé HP 862a Tektro 492bp Tektro 494 Sortie FI (MHz) RF 10368.00 144.0129 144.012 Mesure LO de 10224 MHz 10224.0326 10223.986 F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 10 GHz DB6NT Transverter Gain comparaison of prime-focus and offset dishes Dish Heigth (cm) Width (cm) Depth (cm) Gain Procom Prime-focus 49 na 32 calculés Worldsat offset 80 73 6.4 36.1 Echostar offset 131 121 11.5 40.5 F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 7- 10 /5.7 GHz IK1GEX double horn F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band IK1GEX 5.7 & 10 GHz double Horn 10 to 5.7 GHz isolation 5.7 to 10 GHz isolation Scalar analyser HP 8757a + sweep HP 8350b Target : double 5.7 & 10 GHz feeding on one same 80 cm offset dish Cure : far better isolation must be done on the 5.7 GHz Rx NB: in opposite side of a coax cable, the guide acts like a HIGHPASS filter !! 10 GHz feeding – measures on 5.7 GHz SMA input F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band IK1GEX 5.7 & 10 GHz double Horn Compromise of different phase center positions on each band - Dixit F6DRO, the gain on each band cannot be optimised - - the phasing center on every band is at 2 different locations. - Not yet discussed - Under construction F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band 8- 10 GHz setup of some french dXers F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band F4BUC or F4DRU/p setup 6W on 10 GHz & offset Φ85 F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band F1BZG/45 setup F5DQK August 2008 Getting started on 10 GHz band

Trépied F1PDX + 74 cm offset Getting started on 10 GHz band Fixation à retourner de 180° ? Environ 55° Poids 5.2 Kg Environ 25 à 30° F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band HB9AFO/p setup F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band Antenna setup of F5HRY 50 MHz DXSR 3 élts 1296 MHz F9FT 4 x 23 élts 432 MHz F9FT 9 élts 2300 MHz Wimo 2 x 40 élts 60W 24 GHz Andrew Φ 33 0.5W 5.7 GHz Prime focus Φ 70 10 GHz offset Φ 75 9W 12W 144 MHz 10 élts F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band Antenna setup of F6APE 1st TOWER 10 GHz Prime focus Φ 60 3 W F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band Setup of F8BRK Sequencer DB6NT preamp 8 W 10 GHz Prime focus Φ 85 3 W out 5.7 GHz Prime focus Φ 150 DB6NT 2W amp F5DQK August 2008 Getting started on 10 GHz band

Getting started on 10 GHz band Setup of F2CT/p F5DQK August 2008 10W à 10 GHz & offset Φ 1.20 Getting started on 10 GHz band