Fldigi primer for RAYNET HF team. France APRS. Protocole APRS (10786 total des mots dans ce texte)(25191 lectures) [Adresse unproto] [Trames APRS] [Icônes APRS] [Répéteur APRS] [Report temps réel] [Report différé] [Report avec extension de données] [Objet] [Interrogation] [Report de condition] [Report de déplacement] [Report de couverture] [Report de recherche] [Report météo] Le protocole de l'APRS est le même que celui du packet traditionnel, c'est de l'AX-25, un dérivé du protocole X-25 utilisé pour le minitel.
Dans ce cas, nous allons plutôt nous pencher sur la syntaxe utilisée en APRS, celle-ci diffère totalement car il n'y a plus de connexion, tout est en unproto, l'avantage qu'il procure est d'envoyer une information généralisée que tout le monde reçoit instantanément. Les adresses de balise unproto Dans le packet traditionnel, toutes les informations unproto ont une adresse de balise très précise suivant leur nature et leur destination d'utilisateur. Quelques exemples pour des adresses : Les trames APRS ! ! Exemples : ! ! Bienvenue sur le site du radio-club F6KGL-F5KFF. Wiki. APRS: Automatic Packet Reporting System. Wiki. Products->Radio & Accessories->FLEX-1500->Features. FLEX-1500 European Union Declaration of Conformity FLEX-1500 Terms and Conditions of Sale The FLEX-1500 includes Amateur Radio band transmit capability, which requires a valid amateur radio license; therefore you must provide proof of your Amateur Radio license for all models with transmission capability at time of purchase. (2) All sales are final except under the discretion of the management.
Any FLEX-1500 accepted for return is subject to a 15% restocking fee and must be returned in new condition with all cables, software, documentation and in the original packing materials. The purchaser is responsible for shipping charges for returned items. FlexRadio Systems goes to great lengths to ensure that our software defined radio products are compatible with as wide a range of personal computers as possible. Unfortunately, not all computer-to-radio interfaces fully comply with industry recognized standards. Antenna Alternatives – DIY Drones. Antennas now has its own section in the Forums There are alternative antenna choices for your UAV when space is a consideration.
RHCP antennas are without doubt one of the best choices you can make for your video and telemetry signals. I had wanted to use a RHCP antenna for telemetry for my X-8 but the choices I had come across were pretty space demanding. Surfing the web doing some antenna research I ran across these wheel antennas from Kent Britain WA5VJB, a fellow amateur radio operator. www.wa5vjb.com He's got some really useful designs other than the wheel. I purchased 2 of the 900 mhz variety for the telemetry, one for in the X8 and one for the ground station . This antenna does radiate well (60% efficient) and also radiates well in the second and third harmonics so take precautions to provide filtering for your transmitter. Holes are provided for SMA circuit board jack mount or direct connection to coax. This link shows the antenna being tested in a 3D pattern. RTL-SDR. FlexRadio FLEX-1500 Product Reviews. I picked up a used Flex 1500 from a local ham.
It is incredible. I had a Flex 3000 and sold it a while back and wanted to get another Flex. Once you've used a radio with panadapter, it is hard to go back to knobs. The panadapter is a big help in breaking through pileups since you can literally see the station the DX is working and click to set your TX frequency. I have the 1500 connected to a THP HL-100BDX 100 watt amplifier and it works FB. All it takes is one USB cable to your computer, some software, and a little time and you are ready to work all modes. I was able to put it through its paces this weekend and worked 40+ countries including BY, JA, ZD8, JW, and ZL9. I highly recommend it and the price is right. Getting started with software defined radio. Ezcap EZTV645 DVB-T Digital TV USB 2.0 Dongle with FM/DAB/Remote Controller. Afin d'activer les escomptes de volume sur ce site, utilisez le code coupon: BULKRATE lors de la caisse,\n Vous verrez une décote appliquée au fond du panier.
Une tarification concurrentiel est disponible. Contactez-no What is Bulk Rate? BulkRate is a semi-wholesale system with items priced separately from retail. When you use bulk rates, a flat $1.70 registered air mail fee will automatically be added to your cart to ensure delivery of package. Looking to get even more? Or Contact Us Directly.