Meccano tuning radio control

Kenwood TK-780 VHF Mobile 25 Watt VHF Wide Band Frequency Ranges Wide/Narrow Band Width Per Channel VHF Ch. Steps: 1.25, 2.5, 5, 62.5, 7.5kHz New Dot Matrix LCD (5x7 pixels) 10 Character Alphanumeric Display 3 Numeric Character Sub-Display LCD Operational Icons Two-Color Tri-State LED Indicator Lighted Front Keys and LCD Encryption/Scrambler Board Control Digital ANI Board Control Emergency Calling Features Data Port I/O's PC Tuning Flash ROM Memory KCT-19 Accessory Connector Option MIL-SPEC/Noise-Cancel Mic Options Fleet Basic Installed Size:  5-1/2x5-3/4x1-1/2 Weight:  2.07 lbs

TENNATRONIX YTT-1 Turbo Tuner 2 for Yaesu FT-857D/897. New The TurboTuner-2 provides automatic tuning and control  of screwdriver antennas. It adjusts the antenna until the  measured SWR is less than 1.5:1 at the current operating  frequency. This is accomplished by using the "Tune"  function of the radio to supply RF power while the  TurboTuner-2 moves the screwdriver antenna up or down  and constantly measures the SWR until the minimum is  found. Once found, the antenna motor is stopped and the  radio is placed back in receive mode Compatible with most Tarheel, Hi-Q, Scorpion, High Sierra, and Diamond motorized screwdriver antennas.   **Not compatible with the HiQ-5 Antenna** Package Includes: Antenna Controller Radio Interface Cable Motor Pigtail

ESSAYÉ EN FM ET LW OK POUR LES AUTRES BANDES PAS D’ANTENNES APPROPRIÉES Année: 1976-1978? Catégorie: Récepteur de diffusion - ou passé tuner WW2 Semi-conducteurs (le compte est seulement pour des transistors) 34: Superhétérodyne, conversion double / triple; IF / IF 2000/455 kHz bandes onde Diffusion, grande longueur d'onde, morethan 2 x SW, plus FM ou UHF. détails Type de puissance et de tension Ligne / piles (tout type) / 110/220 Volt Haut-parleur aimant permanent (Dynamic Pdyn) Haut-parleur (à bobine mobile) / 4 de pouce de diamètre = 10,2 cm out Power 2 W (qualité inconnue) de Radiomuseum.org Modèle: RF-4800 LBS / DR-48 - Panasonic, Matsushita, matière divers matériaux forme Modèle de table, profil bas (grande taille). Dimensions (LHP) 480 x 200 x 355 mm / 18,9 x 7,9 x 14 pouces notes Couverture LW, BC (MW), SW 1600-30000 kHz, VHF (FM). Dessous de 3000 kHz seule conversion, au-dessus de 3000 kHz à double conversion. Compteur numérique uniquement pour les bandes 2 ondes courtes - 8. Vendu aux États - Unis en tant que RF-4800 celui ci contrairement au DR 48 ne couvre pas le pas LW). Poids net (2,2 lb = 1 kg) 8 kg / 17 lb 9,9 oz (17.621 lb) The Panasonic RF-4800 LBS has been sold in Europe as DR-48, it covers also the longwave band. The DR-48 is a quite bulky desktop receiver with it's dimensions of 48 x 20, x 35,5 cm and it's weight of 8 kg; two metal handles give protection to the front panel, when the set is turned face down - the give the set the aspect of a semiprofessional receiver. The RF-4800 can be powered from 110 / 220 V mains, from a 12 V car battery or eight UM-1 / mono cells accomodated in two battery compartments. At the left side of the frontpanel, You find the big speaker and below the mains switch, the jacks for an external speaker and a cassette recorder at further right the rotary controls for volume, bass, treble and the BFO pitch control. In the middle of the display window at the right, You find the red LED display of the frequency counter active on shortwave bands SW 2 - 7 and the auxiliary dials for long-, mediumwaves, tropical bands (SW 1) and the FM broadcast band at the left and the shortwave bands SW 2 - 7, each 4 MHz wide, at the right. In the middle of the frontpanel the huge main tuning knob is located, it is equipped with a crank and can be set to slow and fast tuning speed by pressing the knob in the centre - this knob will tune the shortwave bands. The frequency display is active on these band segments and the receiver operates as a double conversion receiver. The second smaller tuning knob tunes the long-, mediumwave, SW1 and FM broadcast bands, in these bands, the set operates as single conversion set and the frequency display is not active. The signal strength meter tends to read high, in the RF-4800 it has a white background, this is a possibility to distinguish the set from the RF-4900, the S meter of the successor comes with a black background. Below You find a row of switches: the switch to activate the AFC in FM mode selects between the two AM bandwidths in AM mode, the middle switch activates the noise limiter and the third one the BFO: use the BFO pitch control just below for an optimum BFO note when receiving CW transmissions and for optimum speech reproduction in SSB mode - voices should no sound like mickey mouse. The bandswitch for LW - MW - SW1 - FM and the band segment switch for SW 2 - 7 are located below the right auxilitary frequency dial. The frequency counter can be calibrated from a 5 or 10 MHz time signal and frequency standard transmission from WWV / WWVH or even from another station transmitting exactly on a known frequency. Tune in to "Radio Deutsche" Welle on 6075 kHz and wait for news and station identification, then tune to maximum S meter reading and use the SW 2-7 CAL control to set the frequency display exactly to display 6.075 - with this control not set correctly, the frequency displayed can be 2 - 4 kHz off the actual frequency. Keep in mind, the RF-4800 is no PLL synthesized set. In the right lower part of the front panel, You find the ANT TRIM to match an external antenna, the R.F. gain control. This should be set to maximum position or "DX" as a standard, in case of overloading of the receiver front end due to high signal level conditions in acrowded shortwave broadcast band wit ha long antenna, You can reduce the R.F. gain. In fact, this knob acts more like an attenuator as there is no switch to turn off the AGC (automated gain control) completely. Three more switches activate dial illumination, frequency display and set the S meter to indicate battery power. At the rear face of the DR-48 / RF-4800 LBS, You find the two folding out ferrite antennas for long- and mediumwaves, the international variant comes with only one ferrite antenna. Next to the antenna sockets, there is a PL / SO 239 antenna socket for SW 2 - 7. The DIN socket can be used to feed the DR-48's audio signal to a cassette recorder and also to feed a signal from an external audio source to the receiver, set the switch at the rear to "PHONO" to use the DR-48 as audio amplifier. The operation scheme of the DR-48 is quite straightforward: turn on the set, make sure the RF gain control is turned to the MAX setting, the AM bandwidth to wide and the BFO turned off. The right bandselector should be on SW 2 - 7 and the left on "2" to select the 3 - 7 MHz range, the use the big tuning knob to find the "Deutsche Welle" from Cologne on 6.075 MHz. If the signal peak is one or two kHz higher or lower then 6.075, use the SW 2-7 CAL to adjust the frequency display setting to the correct frequency. Due to it's conventional design as a double conversion receiver with a quite low first I.F. and a frequency counter, the receiver shows a certain frequency drift even after warm up, CW or radioteletype decoding with an automatic decoder and even reception of SSB signals need slight retuning of the set from time to time, automated recordings won't work properly. The skirt selectivity of the two I.F. filter's is mediocre. quite often, You hear an 5 kHz interference whistle from a adjacent channel carrier. As the receiver operates as single conversion set below 3 MHz, You might encounter mirroring or "ghost signals" appearing 900 kHz from the original signal away. As the internal ferrite antennas cannot be switched of, the DR-48 / RF-4800 is not well suited as a longwave / mediumwave DX receiver. Conclusion: the DR-48 / RF-4800 represents the state of the art from the early eighties as desktop receiver with double conversion circuitry connected to a frequency counter, stability, suppression on unwanted signals and selectivity of the I.F. filters is all below the expectations for a shortwave receiver in the 21st century. The DR-48 / RF-4800 looks very impressive and makes a decent secondary or entry level shortwave radio, for real Dxing, You would need a set with better filters, maybe a notch filter and passband tuning and a few memories to compare different frequencies. If You find a DR-48 / RF-4800 for a bargain price, get one, and You might have lot of fun with it. The technical built quality is not superior, so You might encounter some work until the receiver is running properly. In my sets, the wave band and shortwave band switches all did contact poorly and needed cleaning, as well as the AM narrow / wide switch and even the rotary volume and tone controls.

A Vendre; ensemble 1x MFJ-993B + 1x MFJ-5124Y + 1x Alimenation 220/12V 2A et tous les cordons, MFJ-993B 1.8-30MHz Automatic Antenna Tuner 300 Watts SSB / 150 Watts CW Comme neuf utilisé moins de 10 fois, doublon ne me sert pas donc je m'en sépare. En parfait état de fonctionnement et cosmétique, juste quelques griffures sur le dessous voir photos. Facture fournie du 19/09/2020. Soit 25% du prix  de l'ensemble neuf. description: Automatically tunes unbalanced/balanced antennas...Ultra fast... New 20,000 memories... Antenna Switch... Efficient L-network... Select 300 Watts (6-1600 Ohms) or 150 Watts (6-3200 Ohms)... 1.8-30 MHz... 4:1 current balun... Cross-Needle and Digital SWR/Wattmeter... Audio SWR meter... Backlit LCD... Remote control port... Radio interface... World's First dual power level 300/150 Watts SSB/CW Tuner Select 300 Watt SSB/CW power level and match 6-1600 Ohm antennas Or... select 150 Watt SSB/CW power level and match extra wide-range 6-3200 Ohms! The MFJ-993B IntelliTuner lets you tune any antenna automatically balanced or unbalanced -- ultra fast. It's a comprehensive automatic antenna tuning center complete with SWR/Wattmeter, antenna switch for two antennas and 4:1 current balun for balanced lines. MFJ's exclusive IntelliTuner, Adaptive Search and InstantRecall algorithms give you ultra fast automatic tuning with over 20,000 VirtualAntenna Memories. You get a highly efficient L-network, 6-1600 ohm matching at 300 Watts SSB/CW or extra-wide 6-3200 Ohm matching at 150Watts SSB/CW, 1.8-30 MHz coverage, Cross-Needle and digital meters, audio SWR meter, backlit LCD, remote control port, radio interface, heavy-duty 16 amp/1000V relays. It learns while you're having fun As you're ragchewing, contesting or DXing, your MFJ-993B is learning! When you transmit, the MFJ-993B automatically tunes for minimum SWR and remembers your frequency and tuner settings. The next time you operate on that frequency and antenna, these tuner settings are instantly restored and you're ready to operate in milliseconds! MFJ new VirtualAntenna Memory system gives you 4 antenna memory banks for each of 2 antenna connectors. Select up to 4 antennas on each antenna connector. Each antenna has 2500 memories, 20,000 total. Intelligent ultra fast tuning MFJ's InstantRecallTM first checks its memory to see if you have operated this frequency before. If so, tuning is instantaneous and you're ready to operate. If not, MFJ's IntelliTuner algorithm - - based on MFJ's famous SWR Analyzer technology - - kicks in. It measures the complex impedance of your antenna. Next, it calculates the components it needs and instantly snaps them in. Then, it fine tunes to minimize SWR -- you're ready to operate. It's all done in a fraction of a second. When the impedance is within its measurement range, the MFJ-993B is the fastest automatic antenna tuner in the world. If it can't accurately determine impedance, MFJ's AdaptiveSearch algorithm goes into action. Frequency is measured and relevant components values are determined. Only those values are searched for ultra-fast tuning. For even faster searches, you can set the target SWR to 2 (settable 1.0-2.0). You can manually tune when you can't transmit (for listening out of ham bands). Cross Needle and Digital SWR/Watt Meters Lighted Cross-Needle and digital meters lets you accurately read SWR, forward and reflected power at a glance. An audio SWR meter lets you hear the tuned SWR when you can't see/read meters. Turn on a highly visible, instant response SWR LCD bargraph when you need it. Backlit LCD Display An easy-to-read backlit LCD displays SWR, forward/reflected power, frequency, antenna 1 or 2, L/C tuner values, on/off indicators and other information. The MFJ-993B is a compact 10W x 2¾H x 9D inches.  Requires 12 volts for lamp -   included Remote Control Plug in the MFJ-993RC, remote control and use your tuner elsewhere remotely. MFJ-993B Interface Pre-wired Cables  Allows automatic tuning of your MFJ-991B/993B/994B IntelliTuner through radio. With  MFJ-5124Y YAESU.  Supports FT991A and others With alimentation 220V/12V 2A pour alimenter l'interface -------------------------------------------------------------------------------- Pas d' expedition hors de France; me contacter en préalable. Livraison incluse en France par MondialRelay (donnez par message votre site de relais)

 . Direct from an estate sale of a ham radio operator/collector - all of his vintage gear is in beautiful shape and a nice mix of equipment - including a MINT IN THE BOX Yaesu MD-1B8 Desk Microphone. Please view my other auctions. I will be listing radio gear weekly. This auction is for a beautiful, working YAESU FRG-7700 AM/SSB-CW SHORTWAVE HF RECEIVER. Absolutely PERFECT FRONT PANEL - all controls, lamps and fluorescent digital display operate as designed - all original control knobs with polished silver brights, all control lettering perfect. Steel cabinet looks great, has not dents or dings, only a few light, age-related scratches. Receiver is super clean inside and out. Tested, all bands engage, all modes engage (except FM) - tuning is smooth, selectivity and sensitivity is excellent - very loud audio with a nice, useful Tone control. This is a full sized "real radio" - no tiny confusing drop down sub menus menus - controls are solid and full size - has the feel of a classic communications receiver and is built to last. Comes with AC power cable, Operating Manual and Service Manual is available for free download on numerous websites.  Here is some additional info:   The Yaesu FRG-7700 is a multi-mode receiver covering 150 kHz to 30 MHz in 1 MHz bands to include all longwave, medium wave (AM) and shortwave frequencies. Modes of reception include LSB/CW, USB, AM and FM. An analog dial supplements the 1 kHz yellow LED digital display. The built in clock-timer includes remote activation terminals on the rear panel. Convenience features include:  Variable RF Attenuator, S-Meter, Dimmer, AGC Fast/Slow, Squelch, Tone Control and Noise Blanker. Twelve memories (fine tunable with M FINE knob), are available if the optional MU7700 memory unit is installed on the rear panel. The rear panel has dual antenna inputs, remote timer activation jacks and speaker output.  The detailed well lit photos are a perfect representation of the condition. Enlarge them and ask questions before bidding please. All equipment is sold as vintage electronics and may need repairs and parts replaced over time - SOLD AS IS - NO RETURNS.   US BUYERS PAYS FEDEX SHIPPING ONLY CONTINENTAL USA WE DO NOT SHIP TO P.O. BOXES We strive for 100% customer satisfaction. Incredible customer service along with a fun auction experience is our number one goal! I have successfully shipped delicate vintage radios and electronics for over 20 years - all over the globe. I double-box, bubble wrap and use plenty of padding...at no extra charge! This is a real auction....99 Cents OPENING BID...NO RESERVE...NO REGRETS! PLEASE VIEW MY OTHER AUCTIONS FOR MORE QUALITY VINTAGE ELECTRONICS

Je propose pour une vente un excellent état, Yaesu FRG-8800. Le récepteur fonctionne parfaitement sur toutes les bandes. Tous les commutateurs et boutons fonctionnent et le boîtier est en excellent état. Tout ce qui est nécessaire pour le nouveau propriétaire de faire est de connecter une antenne. Comprend deux manuels d'utilisation (anglais et allemand) et le cordon d'alimentation. Le récepteur sera soigneusement emballé pour l'expédition. Pour regarder une vidéo de la radio en action (avec un haut-parleur externe connecté et une antenne externe), allez sur le site Web youtube et entrez tuilehomme FRG 8800. Voici les détails de Yaesu pour ce récepteur: Le récepteur Yaesu FRG-8800 combine les fonctionnalités de la célèbre série FRG de Yaesu avec la technologie des micro-ordinateurs. Beaucoup de nouvelles fonctionnalités depuis le FRG-7700 ont été ajoutées, comme un grand écran LCD avec 100 Hz d'affichage de la fréquence et barres de signal unique compteur de signal. Un clavier à 21 boutons est prévu pour l'entrée et la programmation numériques de fréquence de la mémoire interne à douze canaux. La mémoire de balayage stocke les données de fréquence et de mode. Les modes AM, LSB, USB, CW et FM sont sélectionnables par bouton-poussoir. Les vitesses d'AGC sélectionnables, l'élimination du bruit et les taux de syntonisation double garantissent un fonctionnement confortable et un fonctionnement facile. Deux horloges 24 heures fournissent l'affichage de l'heure locale ou universelle (UTC) et servent de minuteries avec activation à distance. Squelch, tonalité et atténuateur tout-mode sont également présentés. La commande de réglage fin facilite l'accord SSB, CW et RTTY. Le panneau arrière dispose d'entrées d'antenne disponibles pour l'entrée coaxiale ou filaire. I am offering for a sale an excellent condition, Yaesu FRG-8800. The receiver works perfectly on all bands. All switches and buttons work and the case is in excellent condition. All that is necessary for the new owner to do is connect an antenna. Included are two user manuals (English and German) and the power cord. Receiver will be carefully packed for shipping. To watch a short video of the radio in action (with an external speaker connected and an external antenna), go to the youtube website and enter tuilehomme FRG 8800. Below are details from Yaesu for this receiver: The Yaesu FRG-8800 receiver combines the features of Yaesu's previous world famous FRG series with microcomputer technology. Many new features since the FRG-7700 have been added such as a large LCD display with 100 Hz frequency display and unique bar graph signal meter. A 21 button keypad is provided for digital frequency entry and programming of the twelve channel internal memory. The scanning memory stores frequency and mode data. The modes of AM, LSB, USB, CW and FM are pushbutton selectable. Selectable AGC rates, noise blanking, and dual tuning rates ensures comfortable operation and easy operation. Two 24 hour clocks provide for the display of local or universal time (UTC) and serve as timers with remote activation. All-mode squelch, tone and attenuator are also featured. The fine tuning control facilitates SSB, CW and RTTY tuning. The rear panel has antenna inputs are available for coaxial or wire input.

LA CARTE SD AVEC FRÉQUENCE EST PRÉSENTE DANS LE SCANNER PILES NON FOURNI Operating voltage DC 2.4 Volts (“AA” cell x 2pcs. Ni-MH Batteries) DC 3 Volts (“AA” cell x 2pcs. ALKALINE Batteries) Ext. power and charge voltage USB Power (DC 5V 500mA) Object oriented memory management. See the Object Oriented Scanning Described article for more information Number of conventional channels, trunked systems, sites-per-system, and talkgroups-per-system limited only by available file space on the SD Card Full duplex support and USB connection using the supplied USB Scanner Data Manager Cable, however it will not access the SD card in the radio. Object programmable display alert (including multi-pattern flashing) to assign to talkgroups, frequencies, agencies, etc. Non need for a traditional keypad, radio uses media player style buttons to navigate to user programmed playlists. Play List; create a scan list tailored to your favorite object settings from the Radioreference database. Navigate using the button operations to get to the play list set. Signal Stalker II Near field frequency capture Triple conversion Simple display option will display object and playlist only, or disabled for more detailed display SD Preprogrammed with entire USA Radioreference database, additionally can use High Capacity Secure Digital Cards as long as 32kB memory block clusters are used. Programmable audible alarms Easy-to-read back display and back lit keypad Display and keypad backlighting can be turned on or off independently Scan rate 75 channels per second (non trunking) Search speed 85 channels per second CTCSS / DCS abilities with search, however has no autosave or keypress save feature. V1.3 and later firmware allow saving of a tone via keypress in Menu. 16-character alpha-tagging with text entry can show ID code or service name Temporary and permanent L/O of talkgroup ID or frequency ID delay UNSQUELCH Delay; Delay settings before the radio unmutes audio to speaker Motorola Control Channel Only trunking Radio ID Display Priority Object settings (conventional and Trunked) 6 search ranges/ 1 user definable search range Search "seek" feature Tunes virtually all important bands—local marine, fire/police, Ham, CB, VHF-air, UHF-Air, racing, weather and more Weather band with enhanced SAME Weather Alert functions and weather priority—access weather channels and alerts with the push of a button Skywarn list can be programmed with any number of "objects" "Multiple" Priority channels Zeromatic search tuning 20db attenuator, can be set globally Computer interface and Programming 9 navigation keys to access special modes and programming options 6 line x 16 character display with relative signal strength meter BNC connector Internal battery charger, with power from the supplied PC/IF->USB cable or an external USB power AC or DC converter. PC/IF data output when enabled. Works with analog trunked systems and conventional data. See the Control and monitoring software section. USB to serial cable has Uniden style connector for PC/IF. No access to SD card remotely. An SD card reader is not supplied. Programmable Welcome Screen text Browsing to objects and pausing on them is supported

TENNATRONIX YTT-1 Turbo Tuner 2 for Icom Radios which can control Icom AH-4. New Turbo Tuner 2 for Icom HF Radios **Not compatible with the HiQ-5 Antenna** Compatible with most Tarheel, Hi-Q, Scorpion, High Sierra, and Diamond motorized screwdriver antennas. Plug and Play with your radio. No calibration required. Just plug it in and tune (after one-time setup) Fully automatic adjustment of the screwdriver antenna. The TurboTuner-2 will find the lowest SWR for a given frequency. Tuning is performed at 5 - 10 watts. Motor output current up to 1.5 amps for driving larger screwdriver antennas. Motor control lines are RFI filtered. Park function automatically lowers the antenna to its lowest position. Continuous coverage from 1.8 to 54 MHz Comes with approx 5" motor pigtail and about 3' radio interface cable.