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Hunting for that one contact

In Canada it's the Thanksgiving long weekend and I thought I would add Friday as a vacation day to make it an extra long weekend. The weather has been great all week very summer like and far from fall like. I decided to take advantage of this fine weather and get outdoors with ham radio! This time it was going to be our local park with my car, so instead of the Endfed antenna My plan was to warm  up the mono band HF whips. Apon arrival in the park I check with the website "band conditions" and it was showing all green on 30m. I thought "what the heck" I setup and the band was dead! I checked with band conditions again and low and behold the band was now deep on the red. It was off to the standby band.......20m. Going up and down the band I did find it quite but with the hurricane riding up the Eastern U.S. , it's Friday and lots are working and then the band conditions not idea the slow band made sence. I came across a station calling CQ at 14.041 followed by "up". Hmmm I thought....dxpedition or rare call. I engaged the dual watch on the KX3 and I listened for a bit and found there was no pile up in fact there was no one calling him! The call was AN400M that to me seemed like a special event station but at this point I was not sure from where? I set my KX3 for the common split of 2K and threw my call at 5 watts out there. He came right back to me with the standard 599 to which I replied the same adding TU and 73.  From there I was just spinning the VFO around 20m and really did not find much. I did come across 2 other stations signing AN400G and AN400I and that convinced me I contacted a special event station. I tried calling these other station but was not able to make the contact. It was then time to pack it up as there was a Blue Jays game to watch at 1pm today. While at the local watering hole waiting for the Blue Jays game to start I went on   QRZ.COM to find out it was a special event station out of Spain. They were offering a silver, gold and platinum awards but I was not able to get on their website it was not loading so I was not able to get anymore info.

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Hunting for that one contact

In Canada it's the Thanksgiving long weekend and I thought I would add Friday as a vacation day to make it an extra long weekend. The weather has been great all week very summer like and far from fall like. I decided to take advantage of this fine weather and get outdoors with ham radio! This time it was going to be our local park with my car, so instead of the Endfed antenna My plan was to warm  up the mono band HF whips. Apon arrival in the park I check with the website "band conditions" and it was showing all green on 30m. I thought "what the heck" I setup and the band was dead! I checked with band conditions again and low and behold the band was now deep on the red. It was off to the standby band.......20m. Going up and down the band I did find it quite but with the hurricane riding up the Eastern U.S. , it's Friday and lots are working and then the band conditions not idea the slow band made sence. I came across a station calling CQ at 14.041 followed by "up". Hmmm I thought....dxpedition or rare call. I engaged the dual watch on the KX3 and I listened for a bit and found there was no pile up in fact there was no one calling him! The call was AN400M that to me seemed like a special event station but at this point I was not sure from where? I set my KX3 for the common split of 2K and threw my call at 5 watts out there. He came right back to me with the standard 599 to which I replied the same adding TU and 73.  From there I was just spinning the VFO around 20m and really did not find much. I did come across 2 other stations signing AN400G and AN400I and that convinced me I contacted a special event station. I tried calling these other station but was not able to make the contact. It was then time to pack it up as there was a Blue Jays game to watch at 1pm today. While at the local watering hole waiting for the Blue Jays game to start I went on   QRZ.COM to find out it was a special event station out of Spain. They were offering a silver, gold and platinum awards but I was not able to get on their website it was not loading so I was not able to get anymore info.

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

To all my friends/readers in Florida, Georgia and The Carolinas ........

Earnest prayers that Matthew leaves you as un-battered and un-bruised as possible - AND that all your antennas stay up in the air.

Be safe; and have those batteries charged and those "Go Kits" locked and loaded!


And special prayers go out for our friends in the Carribean nations who are dealing with the aftermath.

72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

To all my friends/readers in Florida, Georgia and The Carolinas ........

Earnest prayers that Matthew leaves you as un-battered and un-bruised as possible - AND that all your antennas stay up in the air.

Be safe; and have those batteries charged and those "Go Kits" locked and loaded!


And special prayers go out for our friends in the Carribean nations who are dealing with the aftermath.

72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

My UHF repeater has been operating on 447.725 MHz here in Monument for a couple of decades now. It started out as a classic “pet repeater” project and has been operating from my basement all this time. Over time it has picked up additional users and has turned into the de facto hangout for our local radio club.

The repeater system has gone through a number of revisions over the years, especially for the RF transmitter and receiver. I wanted to retire the pair of Motorola Mitrek mobile radios I have been using when they started to exhibit a few lose connections. Really though, I thought it was time for some synthesized, modern RF gear in a compact package.

When Yaesu offered an attractive price on their DR-1X Fusion repeater, I jumped at the chance. Initially, I put it on the air in mixed analog-digital mode with the repeater automatically switching modes to handle either analog FM or C4FM digital. I used the internal controller of the DR-1X which is quite simple and has limited functionality. The DR-1X supports using an external controller but implementing the mixed analog-digital mode is…well…challenging. (Various people have figured out ways to do it with modifications to the DR-1X or using additional hardware.)  In the end, I decided to just run the repeater in analog FM mode and have the expanded features of a real controller.

The repeater controller is an SCOM 7K that has been in service for decades. SCOM has long since moved on to a newer, improved model but my 7K keeps on ticking. The 7K has the voice synthesis and autopatch options installed, so, yes the repeater has an autopatch (not that anyone cares). A Yaesu FT-7800R is used as a 2m remote base and the duplexer is a classic Decibel Products. Not shown in the photo is a Bearcat WX100 weather receiver that is used to transmit weather information when an alert occurs in our area.

I’ve documented the wiring diagram and configuration used here: k0nr-repeater-construction-notes

This was a good opportunity to clean up some of the cabling and physical mounting that had degraded over time. (A kluge here, a kluge there and entropy takes over.) I am happy with the result.

73, Bob K0NR

The post Rehab for the KØNR Repeater appeared first on The KØNR Radio Site.

Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].

On Saturday morning, VK4YB and I had our second QSO on 630m using JT9, the WSPR QSO mode. Signals were slightly better than our initial contact but still far from previously seen conditions on the 11,000 + km Trans-Pacific path. However what happened following our contact was equally exciting.

I thanked Roger for the contact, via the ON4KST LF / MF chat page and indicated I was going back to bed as it was still pre-sunrise here on the west coast. He indicated that my signal strength had increased noticeably on my last two transmissions and asked if we might try CW for a few minutes.

We had previously devised our CW protocol to follow a similar one to that used in CW moonbounce work. We would transmit and receive in one minute sequences, with me transmitting on the even minutes and Roger on the odd. Instead of using the RST code for signal reporting, an 'O' is used to indicate reception strong enough to have been able to copy both calls. Both stations are required to copy the 'O', which cannot be sent until both calls have been fully copied. An acknowledgement ('R') must also be sent and copied by both stations to indicate receipt of the signal report. Once the 'R' has been copied, the final transmission(s) are a '73'. Once both stations have copied the 'R', the '73' is technically not required but when copied, further confirms the completion of a valid contact.

For both of us (late at night for him and pre-dawn for me), it was a bit of a mad scramble to make a quick changeover to CW. From my end, there are a number of changes that must be made correctly to avoid over-driving the transverter and damaging the frequency doubler as well as changing to manual PTT to avoid hot-switching of the antenna relays. I also need to bring up the PC's visible clock-face with its sweep second-hand ... but we both made the transition in about two minutes.

We ran for about 45 minutes during which time I heard Roger's CW on two back-to-back sequences (1331Z and 1333Z), copying both calls on each sequence. From 1331Z on, I added Roger's signal report to my calls to him ... 'VK4YB VE7SL OOO'.

We stopped at my sunrise but Roger had only copied fragments of my transmission and never enough to copy both calls. It appeared that we could both have used a few more db on the path as previous estimates have indicated that we might see at least another 5 or 6db yet, on a really good morning. As well, it seemed that the TP pipeline on Saturday morning had centered itself to my south, around northern California and VE7 was on the far northern edge of the propagation path.

Well it seemed that Sunday morning had moved the path further to the north and our 'extra 5-6db' was on hand. All of the local VE7's had numerous decodes of Roger's WSPR signals, including my own 20 decodes in the pre-dawn hours, but ... as 'Murphy' would have it, Roger was suffering receiver-blocking thunderstorm / lightning noise, keeping his K3's s-meter hard against the pin and absolutely no chance of a CW sked. It may have been a much more exciting morning had the spring weather near Roger been more cooperative.

This morning, the weather was still restricting good reception down-under but is forecast to dissipate shortly. But Murphy has not finished with us yet, as the TP path had also noticeably deteriorated today as well. It looks as though the challenge will now be getting everything to come into perfect alignment before the summer weather in VK shuts our CW attempts down for the season.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].