background preloader

Ka0fkl

Facebook Twitter

Yaesu FT-817

ARRLWeb: ARRL Home Page. Kenwood - Amateur Radio Support. HF Ham Radio Bands and Frequencies:: Electronics and Radio Today. - a overview or summary about the HF ham bands or amateur radio frequencies, the frequency allocations and their properties. This summary of the various amateur radio or ham bands is split into several pages: [1] 136 kHz LF ham band[2] HF ham bands[3] VHF ham bands[4] UHF ham bands There is a good variety of ham bands or amateur radio allocations within the HF portion of the short wave spectrum. These ham radio bands or frequency allocations are open to radio hams around the world to use although the actual ham radio allocations do vary slightly from country to country and region to region. However a broad view of the ham radio band allocations can be given, and this is accompanied below with an overview of the properties of the different allocations for radio amateurs.

In the HF portion of the radio spectrum, there is a total of nine different bands that are allocated to ham radio around the globe. HF ham radio bands / allocations 160 metres (Top Band) 80 metres (75 metres) 40 metres Summary. 4BTV "Flag Pole" Antenna by KX9DK - A Restricted HF Antenna Solution. 4BTV "Flag Pole" AntennaSolution to a subdivision antenna restriction by KX9DKThe Hustler 4BTV trap vertical antenna is and has been a very popular multiband antenna with ham radio operators for years. It's performance, length, and diameter lends itself to being "hidden" within PVC tubing and disguised as a flag pole! Here, KX9DK shares his "flag pole antenna with all to enjoy. Materials used. 1. Hustler 4-BTV trap vertical antenna2. 1 1/4 inch x 4 foot pipe3. 2 inch x 10 foot PVC (thinwall), quantity 24. 2 inch PVC couplings, qty 25. 2 inch PVC end cap, qty 16. 5 inch PVC fence post7. eye-bolt8.

Nylon rope9. 4-BTV base section mounted to 4 foot pipe (no concrete used, pipe driven into ground with 18 inches exposed above surface). 4BTV antenna base with PVC base cover 4BTV flagpole antenna covered in 2 inch thinwall PVC mounted on antenna base 4BTV Flagpole antenna as seen from street using Google Earth 73 Dave, KX9DK. APRSLink | Winlink 2000. APRSLink provides a link between the Automatic Packet Reporting System (APRS) and the Winlink 2000 Radio email system. APRSLink monitors all APRS traffic gated to the internet, worldwide, and watches for special commands that allow APRS users to: read short email messages sent to their callsign@winlink.org account (only the base callsign, no SSID)send short email messages to any valid email address or Winlink 2000 userperform email related maintenance (see commands below)be notified of pending Winlink email via APRS messagequery APRSLink for information of the closest Winlink RMS packet station APRSLink provides a very special capability for the Kenwood TH-D7, TM-D700 and TM-D710 Radios for sending and receiving email from the radio front Panel without any need for a PC.

Properly licensed Amateur Radio operators are automatically registered in the Winlink 2000 system the first time they send a message through the system. QRZ.COM. EchoLink IRLP. HAM Radio Help.

Pearltrees videos

Pearltrees tips.