Steve (@g8gka) 's Twitter Profile
Steve

@g8gka

Amateur radio, EME, GHz_bands, VHF, HF and Digimodes.

ID: 264834927

linkhttps://radio.g4hsk.co.uk/ calendar_today12-03-2011 14:49:16

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Pleased to work 4 new initials today on 10GHz in the ARRL uW EME contest. Thank you again to my QSO partners. #GHz_Bands

Pleased to work 4 new initials today on 10GHz in the ARRL uW EME contest.  Thank you again to my QSO partners. #GHz_Bands
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Experimenting with two Rev 2 TX up-converter boards. They haven't let out any magic smoke (yet)! 🙂 Measuring +5dBm out on 10368MHz. Using an FT-818 on 432MHz as the IF. #GHz_Bands

Experimenting with two Rev 2 TX up-converter boards. They haven't let out any magic smoke (yet)! 🙂
Measuring +5dBm out on 10368MHz. Using an FT-818 on 432MHz as the IF.
#GHz_Bands
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Yesterday I took a hacksaw to a MCTV-670 LNB. One of the easiest I’ve found to modify for QO-100/10GHz. It now ref locks to 25MHz and has SMA connections. Testing it indoors with a horn antenna I heard the new GB3BED beacon for the 1st time and GB3PKT. Both via RS. #GHz_Bands

Yesterday I took a hacksaw to a MCTV-670 LNB. One of the easiest I’ve found to modify for QO-100/10GHz. It now ref locks to 25MHz and has SMA connections. Testing it indoors with a horn antenna I heard the new GB3BED beacon for the 1st time and GB3PKT. Both via RS. #GHz_Bands
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All the main modules of my 10GHz QRP TVTR are complete. RX and TX sections have been tested. Now to fit it all in the box, add sequencer, relays etc while leaving space for a small add on “Franco PA”. Space & interconnect cables are going to be a bit of a challenge. #GHz_Bands

All the main modules of my 10GHz QRP TVTR are complete. RX and TX sections have been tested. Now to fit it all in the box, add sequencer, relays  etc while leaving space for a small add on “Franco PA”. Space & interconnect cables are going to be a bit of a challenge.   #GHz_Bands
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I’ve been melting more solder. 10MHz reference + ADF4351 SynthShield + multiplier / amplifier board. +6dBm 10GHz test source / beacon.

I’ve been melting more solder. 10MHz reference + ADF4351 SynthShield + multiplier / amplifier board. 
+6dBm 10GHz test source / beacon.
Steve (@g8gka) 's Twitter Profile Photo

Trying hard to complete some projects. 10GHz Beacon / test source and SA downconverter basically working. +7dBm output and 10GHz downconverter outputs to 618MHz which works well with Rigol DSA815TG SA. All locked to a 10MHz OCXO. Fun on the #GHz_Bands

Trying hard to complete some projects. 10GHz Beacon / test source and SA  downconverter basically working. +7dBm output and 10GHz downconverter  outputs to 618MHz which works well with Rigol DSA815TG SA. All locked to a 10MHz OCXO.
Fun on the #GHz_Bands
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The new 10GHz PA module is now installed and working. Hope to get out later today to do some /P tests. Fun on the #GHz_Bands.

The new 10GHz PA module is now installed and working. Hope to get out later today to do some /P tests. Fun on the #GHz_Bands.
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Dull and wet outside with light drizzle. New 10GHz transverter propped up on a chair pointing up at the clouds. GB3PKT beacon in on RS. Best -15 so far. Fun on the #GHz_Bands

Dull and wet outside with light drizzle. New 10GHz transverter propped up on a chair pointing up at the clouds. GB3PKT beacon in on RS. Best -15 so far. 
Fun on the #GHz_Bands
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Four 10GHz beacons were visible all together on the waterfall last night via RS. Using indoor setup with 20dB horn antenna pointing East. GB3FNY was ODX at 219km, GB3GCT was -17dB (PI4) at 128km from JO01fs. Fun on the #GHz_Bands

Four 10GHz beacons were visible all together on the waterfall last night via RS. Using indoor setup with 20dB horn antenna pointing East.
GB3FNY was ODX at 219km, GB3GCT was -17dB (PI4) at 128km from JO01fs.
Fun on the #GHz_Bands
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ARI EME Contest today. Conditions were challenging, spreading >200Hz for much of my Moon pass and -2dB Dgrd made it pretty tough going with my small 1.2m/10W 10GHz setup. Still fun, one new initial in the bag, Bert – DL4DTU with his 2.4m dish. TU to my QSO partners.🙂 #GHz_Bands

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Nice 10GHz Q65-60D EME QSO (Initial #34) this morning with Hans, ON4CDU. My second 1.2m to 1.2m dish QSO. Only 10W at the feed this end. There would have been no repeats needed had I not forgotten to nudge the dish! 🙂 Fun on the #GHz_Bands

Nice 10GHz Q65-60D EME QSO (Initial #34) this morning with Hans, ON4CDU. My second 1.2m to 1.2m dish QSO. Only 10W at the feed this end. There would have been no repeats needed had I not forgotten to nudge the dish! 🙂
Fun on the #GHz_Bands
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I only have the QO-100 feed mounted on my dish atm. 10GHz EME condx are looking good so I tried decoding the DL0SHF/B. Results not too shabby given manual tracking both AZ/EL & Doppler shift. Setup: 1.2m OS dish, MCTV-670 LNB → Pluto SDR → SDRConsole → VAC → WSJT-X #GHz_Bands

I only have the QO-100 feed mounted on my dish atm. 10GHz EME condx are looking good so I tried decoding the DL0SHF/B. Results not too shabby given manual tracking both AZ/EL & Doppler shift.
Setup: 1.2m OS dish, MCTV-670 LNB → Pluto SDR → SDRConsole → VAC → WSJT-X
#GHz_Bands
Steve (@g8gka) 's Twitter Profile Photo

Just testing a new RPi SDR Panadapter setup. Good 10GHz RS at the moment. GB3PKT beacon peaking 59s on indoor /P gear with horn antenna. Seeing my personal QRPp beacon and PKT on 10368.945MHz on the waterfall. The 5” display seems okay for /P operation. Fun on the #GHz_Bands

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I was near Combe Gibbet today & had my 10GHz gear with me, so took the opportunity to visit. Wow! Location… ✔️ Unprepared, no headings etc. GB3CMS & PKT audible via RS. GCT was S9++ on open WG. 1st time I’ve used uW gear at a decent site. So different to /P in Essex #GHz_Bands

I was near Combe Gibbet today & had my 10GHz gear with me, so took the opportunity to visit. 
Wow! Location… ✔️
Unprepared, no headings etc. GB3CMS & PKT audible via RS. GCT was S9++ on open WG. 
1st time I’ve used uW gear at a decent site. So different to /P in Essex #GHz_Bands
Steve (@g8gka) 's Twitter Profile Photo

I applied volts to the PA. No magic smoke escaped! Calibration ran okay. A very quick test (with low bias current) indicated it’s giving 22dB gain. These boards have been a real challenge, 0603 parts and QFN devices are at the limit of my soldering capabilities now. #GHz_Bands

I applied volts to the PA. No magic smoke escaped!  Calibration ran okay. 
A very quick test (with low bias current) indicated it’s giving 22dB gain. These boards have been a real challenge, 0603 parts and QFN devices are at the limit of my soldering capabilities now. #GHz_Bands
Steve (@g8gka) 's Twitter Profile Photo

My PMA5-123 10GHz PA is working well. After a couple of minor HW changes and two parameter changes in the DC-bias MCU SW I can now measure 2.5W with 24dB gain. A nice add-on for my homebrew TVTRs. Now to think about a suitable enclosure and putting the second one together. #UKGHz

My PMA5-123 10GHz PA is working well. After a couple of minor HW changes and two parameter changes in the DC-bias MCU SW I can now measure 2.5W with 24dB gain. A nice add-on for my homebrew TVTRs. Now to think about a suitable enclosure and putting the second one together. #UKGHz