Colin M1BUU's Avatar

Colin M1BUU

@m1buu.bsky.social

Likes hills, countryside and radio. QRP, SOTA, radio kit building

310 Followers  |  127 Following  |  172 Posts  |  Joined: 17.11.2024  |  2.0164

Latest posts by m1buu.bsky.social on Bluesky

All those kinds of rigs with parallel BS170 PAs are sensitive to VSWR excursions. The absolute worst thing you can do is tweak an ATU with the rig at full power. Either use an attenuator (e.g QRPOMETER) or reduce the rig supply voltage to tune up and then increase the supply voltage once tuned.

22.11.2025 17:34 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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My QMX has been fine, I haven't tripped the SWR protection with the latest firmwares - I think the default was put up to 3:1. I run either a home made dipole or home made 7MHz EFHW on 40m and 20m.

22.11.2025 17:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Great to catch up with Trainee Search Dog Jura at Kendal Mountain Festival today. It was meeting Jura last year that inspired me to volunteer with my local MRSDE group as a 'body'.

22.11.2025 16:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Drove to Barnard Castle this morning. πŸ‘€

16.10.2025 16:06 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This Traveller was good only for scrap or total rebuild. The original engine did come back to life with a replacement cylinder head which happened to be laying around. The engine was sold for project funds.

28.08.2025 18:41 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It's not stupid fast, but it can keep up with modern traffic. With the six speed box it cruises on the motorway with ease. Yes, the brakes are good and the mass is low anyway.

28.08.2025 18:19 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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Yeah, a little bit more up to date to make it usable. I tripped the engine management light yesterday, looks like we'll have to plug into the OBD port again.

28.08.2025 17:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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No need for a key, no clockwork in this Moggy. 1.8l VVC twin cam provides the go.

28.08.2025 17:29 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 3    πŸ“Œ 0

AA batteries are generally a poor power source, but they'd probably work to some extent. A lipo battery and charger would be a good investment and needn't cost an arm and a leg.

28.08.2025 15:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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150 mile road trip over Shap yesterday, just for fun!

28.08.2025 06:35 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

3S lipo 2200mAh, it's just a nice size and lasts for a long time.

27.08.2025 21:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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It was a bit cloudy yesterday.

24.08.2025 18:01 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
M1BUU/P in Mt. High Willhays
YouTube video by EA2BD M1BUU/P in Mt. High Willhays

Ignacio, EA2BD, captured my CW from northern Spain today.

23.08.2025 21:21 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Seems to have been flying ant day on High Willhays G/DC-001 today. 11 QSOs in the bag using my old MTR2B.

23.08.2025 16:58 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Pencil for scale. (Haven't been food shopping yet, so no banana available.)

16.08.2025 15:05 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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This pop aisle in Oban Lidl looks very different to the one in the Lancaster store!

16.08.2025 08:11 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It hasn't rained, but millions of wee beasties have descended on Coll

14.08.2025 20:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yesterday was very hot, today was warm but cloudy.

14.08.2025 20:12 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Great thanks! All aims achieved. πŸ˜€

14.08.2025 20:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Heading to the Inner Hebrides tomorrow on my bike. I'm taking a QMX and dipole and planning to be on air on 40m SSB/CW Wednesday morning and daytime Thursday. Will be signing as MM1BUU/P. IOTA EU-008

11.08.2025 13:36 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0

No, Kez is the wrong breed!

15.07.2025 10:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Volunteered with the search dogs again on Sunday. Here I've been found by SD Kez.

15.07.2025 08:20 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Had the QMX out last week. Seems to work OK.

15.07.2025 08:18 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is my second one. This time I went for 60-15m as I want the option of 40m SSB. Last time I got a 20-10m version but I don't use 10m! I didn't want to risk re-working a perfectly functional rig, so I bought another.

07.07.2025 18:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Smoke test. βœ…οΈ
Phew!

07.07.2025 16:44 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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Really enjoyed volunteering with Mountain Rescue Search Dogs this morning!

29.06.2025 17:24 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Really enjoyed the series, just a bit sad that there aren't more episodes! Particularly enjoyed the bits about Atlantis as I witnessed the STS-112 launch from Cocoa Beach, and then later went to the press launch of an IMAX film, presented by the whole STS-112 crew.

27.06.2025 11:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Was in Wales for the GW SOTA event this weekend. At 2am rally cars were going past the tent for over an hour!

15.06.2025 14:22 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Last year I was weighing my t-shirts and buying titanium cookware, trying to get my all up bike weight below 115kg for my bike tour trip. 115kg is the stated bike+rider weight in the Cube handbook. I've just found out that the 25kg rear carrier load isn't counted in that! Gross weight is 140kg. Doh!

27.05.2025 07:50 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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SOTA seems to have fallen off my radar recently but I did manage a brief activation of G/NP-005 last week. I'm still about!

22.05.2025 07:57 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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