52 Week Ham Radio Challenge 2025 - Week 9: Try to work an FM repeater on 10m

Challenge for 2025-02-24 - 2025-03-02:

Category: 📻 - Difficulty: 🟠

Try to work an FM repeater on 10m
There are several repeaters on 10m FM above 29 MHz. They usually operate with a shift of 100 kHz. During high sunspot years, it's easy to work via them even with simple equipment.


Toots mentioning this challenge

DateUserUser scoreStatusToot summary & link
2025-02-24 02:59:10stu@gott.social8Working on it...#HC09 is upon us. The closest 10m repeater is W4GL in Sumter SC, a good 75 miles away. I have no idea if I can work that.Not sure when I can put up an antenna, but i'm about to learn if an FM signal can reach that kind of distance from my QTH with the equipment I have.
2025-02-24 21:31:33mischk@bunt.social9Working on it...Today I tried to to do a QSO via a 10m repeater for HC09. First I had to check the manual of my TRX, because I never did that before. It was not too complicated to set up the TRX for FM Repeater use. I set up my station in a park (Tempelhofer Feld) and tried to reach DB0BLO, I was able to open the relay and sent my CQ calls, but nobody replied. I scanned the other repeater frequencies but could not hear anyone. I dont know how much it is used anyway. (1/2)
2025-02-25 15:25:33g7kse@mastodon.radio8Success!I've not been on a 10m repeater for a looooong time. VE3MMX was very loud with me this afternoon so after a quick QSO I put it in the memory and will go back to it I'm sure.Took a bit to work out how to set the split properly on the rig mind you 🙂 HC09S
2025-02-25 16:59:44pg4i@mastodon.radio7Working on it...#hamchallenge #HC09So far I have heard KQ2H on 29.610 and VE3MMX on 29.640 but they both require some kind of tone to open. My TenTec Orion does not know how to do that. 😅
2025-02-25 22:21:20DC4LW@social.darc.de12Working on it...Worked on #hamchallenge HC09 tonight. I had the chance to use a station for 10m FM and tuned to DB0BLO 15km away. First I thought that I had trouble with the split setup, but found out shortly after, that I used the wrong antenna.And like @mischk yesterday, no one answered my call, although I tried for about 2,5 hours. I also tried to reach the next closest repeater DM0MGB in 120km distance, but had no luck with the propagation.@hamchallenge
2025-02-25 23:28:28ei7ijb@mastodon.radio4Working on it...I checked for a local repeater in Éire for the 9th challenge, 'Try to work an FM repeater on 10m’, and found one on the other side of the country. As per an IRTS page, the 10m repeater is offline due to a recent storm. I might need to check on this. #hamchallenge HC09 @hamchallenge
2025-02-28 22:11:43bgarfoot@kind.social10Working on it...In my weekly #hamradio nerddom, my HC09 was a resounding dud. I definitely heard a 10m repeater identifier, but it wasn't one of the ones I had in my directory. Tried to get into the N9JHQ, KB9KRI, and WD8DPA repeaters, but heard nothing back. Did end up doing a 20m #POTA activation though, so the day wasn't a complete loss
2025-03-02 00:14:01ian@mastodon.radio11Working on it...Guess I had better try a 10m repeater tomorrow for HC09. My closest is ~80 miles away, a distance at which I have never had a 10m QSO. Given the conditions I'm half wondering if I should try for a repeater in eastern US/Canada, which just seems insane.
2025-03-02 14:39:46stu@gott.social8Working on it...Hoping to attempt #HC09 today. Just my luck that the solar flux index is 145, so band conditions are only "fair" on 10m. Unsure if that will play a factor if I'm attempting ground propagation to W4GL, approx 70 miles away.
2025-03-02 14:53:48DC4LW@social.darc.de12Success!Succeeded in #hamchallenge HC09S - I had a QSO with @mischk via DB0BLO on 10m. And he also pointed out, that I succeeded in HC12S as well, as I used my rain gutter as an antenna. Unfortunately I needed to use 15W, so that he can understand me, but that much power killed my DSL-connection (and probably those of my neighbours). I should use that antenna with more care and on QRP modes only. The VSWR is around 2,5 in the 10m band, so I can easily use an antenna tuner.@hamchallenge
2025-03-02 15:46:53mischk@bunt.social9Success!For HC09S me and @DC4LW scheduled a QSO today, after we both had no luck with the repeater next door, because nobody answered our calls. I set up my rig outdoors on a lawn, DC4LW worked from home with a rain pipe antenna. I heard him quiet well after he increased the power a bit. Later also DM8SB joined the fun on the repeater with a small antenna in his garden.Sure, we also could have used the local VHF/UHF repeater because we live quiet close to each other. @hamchallenge
2025-03-02 21:29:29stu@gott.social8Working on it...#HC09 remains open.It turns out W4GL's 10m repeater isn't around anymore. Tried for W4APE, but at 130 miles away that's almost certainly in my skip zone. I was using a dipole at 19 feet above ground. Honestly I wonder if this requires an NVIS setup.Curiously W4APE's output frequency appears to be using the simplex calling frequency. That's probably a no no, but I was transmitting on the input freq, which was legal.I ended up packing up with no contacts due to cold.
2025-03-02 22:28:36ian@mastodon.radio11Working on it...Yep, as I thought, the best 10m repeater for me to try is on another continent. While I didn't join in, I heard a UK-Jamaica QSO this afternoon on VE3MMX, Ontario Canada.HC09 still open, may try again from home another day.
2025-03-03 15:18:19n8dmt@mastodon.radio12Working on it...HC09 #HamChallengeHave been struggling with this one for a few weeks now. The IC-705 with indoor magnetic loop is just not working well enough to succeed…Trying another approach: If the QRP ham station won’t reach out far enough to work distant stations, how about putting together a 10 meter repeater here and having a QSO with another radio amateur — all within this household? Created a quick diagram — will give it a try and see if it works!#HamRadio #10MeterFM
2025-03-03 15:33:20n8dmt@mastodon.radio12Working on it...HC09 #HamChallengeThe diagram certainly was “quick”. ERROR!!! Will actually move the HF portion of the repeater up 1 MHz to 29.52 RX and 29.62 TX. Drawing updated and ready to some lunchtime fun. :radio_tower:‍:radio_base:
2025-03-03 16:14:25n8dmt@mastodon.radio12Working on it...@VE7WYC Trying to work a 10M FM repeater for Ham Challenge 2025 HC09. I can work strong DX stations with the 705 and indoor magnetic loop antenna on FT-8 & CW, but have been listening for weeks on 10M FM (repeaters / simplex) and barely hear even a very weak station here. “Moving the repeater” much closer (to other side of my office) will make it much easier to have a 10M FM repeater QSO. Have built most of the blocks for this system previously. Should not be too hard… #HamRadio
2025-03-09 23:33:09K6ZEN@mastodon.hams.social6Working on it...HC09Clearly, I need to figure out what's actually involved in using a 10m repeater, because I'm missing something here.
2025-03-14 15:20:48n8dmt@mastodon.radio12Success!@hamchallengeHC09S #HamChallenge #HamRadio Completed build of the local 10m repeater for this challenge. Had the GNU Radio Pluto SDR TX/RX, frequency converter, ant coupler all connected & tested with TinySA-Ultra Sig Gen. Sig Gen out 29.52, 1KHz FM mod signal (repeater in) into coupler test port, creating a 29.62, 1KHz FM mod repeater out signal for reception/display on the IC-705. Last step was to unhook Sig Gen and use IC-705 & IC-7000 for a local QSO with N8DKK. Challenge complete!

52 week ham radio challenge: Home