Datong active antenna model ad370 full#
Datong active antenna model ad370 pro#
Datong active antenna model ad370 plus#

Two'grounds' were provided, one at the headunit into a heavy copper cable at it's base, andanother at the indoor control unit. To minimise loss and ensurethe least QRM pickup, RG213 cabling was used. It also bleeds off and groundsthe static that would otherwise damage any activeantenna, something that is a real danger in thehot dry high winds experienced in this semi-desertarea.Beforechoosing the final position of the head unit, Ihad an assistant walk around with my lightweightDatong active on a pole, thus allowing me to carefullychoose the position with the least noise generatedby my household and the neighbours noisy TV's andsatellite dishes.Thus, the 'head' unit ended up some 30meters away from the indoor control unit at theradio in the shack. The careful groundingensures both a 'ground' plane to the antennaand has a lot to do with diminishing the effectsof local man made QRM. This washigh enough to ensure the head unit was at leastone meter higher than the offending powerline thathad blocked reception of the wire antennas.Groundingis importantGroundingwas said to be particularly important, so I paida lot of attention to that.

Datong active antenna model ad370 pro#

Fromother users comments and carefully following RFSystems instructions, I installed the DX-1 Pro ona 5 meter pole mounted on an outbuilding. I then enquiredaround on the web for user comments and finallygave me a comprehensive and detailed review of theDX-1 Pro that encouraged me to buy one direct fromHolland.It arrived and was installed in October 2000. NowI had no antenna at all except an old Datong AD270active antenna, which at least allowed me some reception.SoI searched around for a better more uptodate activeantenna and was impressed with the review of theRF Systems DX-1 Pro in the 1996 WRTH.

Datong active antenna model ad370 full#

Andy Ikin of Wellbrook verykindly took it back and gave me a full refund.

Datong active antenna model ad370 plus#

I put this lack of successdown to the rocky and stony ground and the factthat the area has a power supply of overhead streetlines, plus a high voltage powerline in front ofthe house.I then bought a K9AY fromWellbrook, which, after careful installation andmuch e-mail between me and Wellbrook turned outto be a dismal failure. Here I tried every combination of wire antennawith dismal results. Will ship in 2 packages.Welcome!It isFriday, January 10, 2020, 0644 UTC RF Systems DX-1 Pro Active AntennaRadiostationsDXingDXpeditionsSiteinfoRF Systems DX-1Pro Active AntennabyThe first question to askis why choose an active antenna over a good wireantenna? I have successfully used wire antennasall of my DXing life - that was for 30 years untilI retired to this little town of Montagu in SouthAfrica.

No warranty is either expressed or implied. Auction includes 2 PAL to BNC adapters for use with the control interface.

A 12-volt DC adapter is required for operation (not included). User will need to supply coaxial cable from outdoor antenna module to the control interface box indoors and also from it to the receiver.

Can be used horizontally for directional or vertically for omnidirectional reception. Ultra low noise dual J-FET circuit features an IP3 of 36dbm (27dbm with 2nd amplifier powered on). This antenna has never been outdoors but has been stored away in a closet for life and only shows some scratches on the label and some light wear to the pvc and plastic housings.

This classic active antenna from the UK was one of the best ever made. New (NOS) genuine Datong AD370 active dipole receive antenna for HF shortwave broadcast reception in unused excellent condition. Item: 332183476143 Datong AD370 Active Dipole Shortwave HF Receive Antenna UK Classic JFET Design.