Maximum working throughput of the standard 7×7 variant is 100W.15 Off relays plus 2n2002 devices and respective PIC outputs which is 400mA In test mode all relay driver devices (2n2002) are turned on, respective relays are energised. My unit works from 8-14Vdc, my PSU max output is 14Vĭuring Tune mode all relays can be used, but not all are simulataneously used, PCB has a 5v regulator for both the switching transistors relays and PIC processor. I built an ATU100 then after exhaustive testing cased same. ![]() The type of antenna connector is also important: BNC is far superior to anything and comes standard but SO239 connectors can optionally be fitted. The unit can be programmed for QRP work (20W) or normal (100W) – please specify your choice. So I have put together a team in the workshop that can do the assembly and test locally. Yes, it is small … as in surface mount! There are many kits on eBay and AliExpress in various stages of completeness, but you are on your own if it doesn’t work. This is the perfect tuner to match your standard Yaesu or ICOM 100 watt radio at a third of the cost of the brand names! I’m going to lovingly call this the poorman’s Z-100 plus. And lo and behold I found the design from N7DDC on the internet at N7DDC-ATU-100-mini-and-extended-boards. Quick tuning!Īfter recovering from the shock of the price of the Z-100+/MFJ-939 auto tuners (the US$ is killing us) I started looking for a tuner that isn’t going to put me back in hospital. Requires external 12v power like most other ham devices but can be 9v battery operated. Very lightweight and useful for field work. Note: For additional information, please look at the files under the "Documentation" tab.Automatic Antenna Tuner (ATU-100) from original N7DDC design with power and SWR Indication. * User installable 4-AA battery holder (batteries not included) * Power requirements are 6 to 16V DC at 300 mA maximum * 1.8 to 54.0 MHz coverage with built-in frequency sensor * Selectable user parameters: auto/semi, threshold, and more * Tuning time is 0.1 to 6 seconds full tune, 0.1 seconds memory tune The current draw when not tuning is effectively zero. LDG Electronics Z-11ProII tuners use latching relays, which retain the tuned configuration, even when powered down. Just speak into the mic, and it tunes! Rugged and easy-to-read LEDs indicate SWR and status. Memories are retained indefinitely.įull auto mode tunes with SSB. Whenever you transmit on or near a frequency you've used before, the Z-11ProIIs re-tune from memory almost instantly. These tuners have 2,000 memories that are used to automatically store tuning configurations for each frequency and band… as you use them. With an optional balun, they will also match longwires or antennas fed with ladder-line.įrequency-sensing circuitry lets the Z-11Pros "know" your operating band and frequency. They will match dipoles, verticals, inverted Vs, or virtually any coax-fed antenna. ![]() Z-11ProII tuners use LDG's state-of-the-art, processor-controlled Switched-L tuning network. Weighing only 18 oz., they handle 0.1 to 125 watts, making them ideal for both QRP and standard 100 watt transceivers from 160 to 6 meters. ![]() LDG Electronics Z-11ProII Automatic Antenna Tuners are everything you always wanted in a small, portable tuner that's been designed from the ground up for battery operation. LDG Electronics Z-11ProII Automatic Antenna Tuners
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |