NJDTechnologies

Radio: it's not just a hobby, it's a way of life

Current Operating Frequency and Mode

CQ 474.5 kHz CW and alternately tuning 472 kHz - 475 kHz for signals.

Reasonable conditions, a new station in ZF1, and WH2XZO fires up for the first time with great success

– Posted in: 630 Meter Daily Reports, 630 Meters

Conditions were fair to strong for stations in North America during the overnight session.  At WG2XIQ there were many CW-level reports including positive S/N numbers from KU4XR in Tennessee.  Strong storms in New Mexico, Mexico and West Texas created a significant level of noise through the session, however, and no doubt limited S/N reports to a degree.  As with previous sessions, participation did not disappoint.

24hour 102115

24-hour WSPR activity

Of note was the first-time operation of Doug, K4LY / WH2XZO, in Inman, South Carolina.  Doug is using a 65-foot tall inverted-L with additional toploading provided by a 75-meter full-wave loop that is tied into the top of the system.  He generates a signal with a Kenwood-590 driving an NJDTechnologies amplifier currently throttled back to approximately 19W using the power supply on hand that only provides 12-volts.  Once the power supply is upgraded, he will be on the air at 100+ watts.

Doug made a very good first showing, reporting 27 dbm ERP.  Its only a matter of time before he is heard by Merv on KH6.

WH2XZO 102115

WH2XZO 24-hour WSPR map

 

WH2XZO uniques 102115

17 unique spotters that reported Doug’s signal over night for a total of 778 spots

Well done, Doug.  Its only a matter of time before we make regular CW QSO’s.  Doug sent a few comments about his system as well as several pics, of which I selected two to share here:

Doug says:

“I’m on the side of a hill near the top so like you, I have a better than average location (especially for VHF) and with an almost 200′ by 200′ lot, I have more room for radials than many, but no where near enough room for 16 x 0.1 WL radials which I think would be pretty minimal for a vertical.  When you take out the footprint of the house and keep radials 50′ or more away from the 75′ triangle of Hi Z receive antennas, there’s not a whole lot of space left for radials!

For antennas in the air, I’m better off because the  INV L and connected 75M FW loop [toploading] fit nicely between two 66” towers 70′ apart at opposite ends of the house. In addition, I have  55′ and 75′ trees perpendicular to the inverted L flat top which are supports for the diamond shape 75M FW loop.  This provides me with about 310′ of wire, mostly at 55′ to 65′ above ground, as a capacitance hat, but the capacitance hat is all to the north of the vertical section of the INV L and the radials are mostly all to the south of the INV L vertical section because the Hytower is 40′ south of the INV L.  Having the capacitance hat on one side of the vertical and the radials mostly on the other side can’t be ideal!
I’m using an Alpha Delta coil of approximately 75 uH with an old Bud coil directly below it connected at the bottom of the coil to my ground/radial system.  Fine tuning with the Bud coil, I was able to find almost a 1:1 SWR using my RigExpert analyzer.”
DSC02865

630-meter feed point adjacent to the HyGain HyTower which shares a radial system with 630-meter

DSC02844

Close up of the 630-meter feedpoint

Also of note is the appearance of a new station in ZF1.  Roger, ZF1RC, reported WG2XIQ, through the session.  This appears to be Roger’s first outing on 630-meters.  Welcome aboard and thanks for the reports!

WG2XIQ ZF1RC 102115

ZF1RC 24-hours WSPR activity

 

WG2XIQ zf1rc 102115 data

WG2XIQ, as reported by ZF1RC

Generally speaking the band was normal over night.  While trans-Pacific appears to have ceased for the moment, activity to KH6 continues to be strong.