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Path Loss 3 messages
Re Brian G8CUB's question in latest Scatterpoint Free Space Path loss at 1.42GHz for 2.5 Billion LY = 32.4 + 20.LOG(1.42 * 2.5E9 * 365.2422 * 86400) = 373dB (GHz, Lyears, Days/year, seconds/day) Andy
Re Brian G8CUB's question in latest Scatterpoint Free Space Path loss at 1.42GHz for 2.5 Billion LY = 32.4 + 20.LOG(1.42 * 2.5E9 * 365.2422 * 86400) = 373dB (GHz, Lyears, Days/year, seconds/day) Andy
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By Andy G4JNT
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The joys of RS - PICs for Keyer Boards 4 messages
RS Components are getting worse in their old age. After wandering up to the Trade Counter this morning to collect the PIC devices, and being told "I had ordered too late", got back home and an hour or
RS Components are getting worse in their old age. After wandering up to the Trade Counter this morning to collect the PIC devices, and being told "I had ordered too late", got back home and an hour or
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By Andy G4JNT
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Audio Keyer Boards
I've dispatched five orders so far and have run out of PICs. Five still waiting. Placed an order with RS yesterday, but they "claim" it was too late for delivery today , which was untrue as I placed t
I've dispatched five orders so far and have run out of PICs. Five still waiting. Placed an order with RS yesterday, but they "claim" it was too late for delivery today , which was untrue as I placed t
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By Andy G4JNT
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N plug solder for semi rigid 7 messages
Looking on ebay, can't find a UK supplier of N plug for semi-rigid, soldered. They all seem Chinese or Crimp. Where to go? Ben
Looking on ebay, can't find a UK supplier of N plug for semi-rigid, soldered. They all seem Chinese or Crimp. Where to go? Ben
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By militaryoperator
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SSB - Electronic SP-23 Preamp 7 messages
I have a SP23MKII mats head preamp, its not working. I wonder if anyone has a circuit for it with the component value, I suspect one of the 2 Gas Fet, but unsure on what they are, they seem to be the
I have a SP23MKII mats head preamp, its not working. I wonder if anyone has a circuit for it with the component value, I suspect one of the 2 Gas Fet, but unsure on what they are, they seem to be the
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By Anthony Coldman
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PRIVATE: Re: [UKMicrowaves] Audio CW / Tone / Chirp keyer 2 messages
Hello Andy, I just ordered three of the units. I couldn’t see anywhere to say that I would like 2 of the keyed ones and 1 of the non keyed versions. Many thanks indeed, David G4GLT.
Hello Andy, I just ordered three of the units. I couldn’t see anywhere to say that I would like 2 of the keyed ones and 1 of the non keyed versions. Many thanks indeed, David G4GLT.
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By Dave
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WA5VJB 850-6500MHz LPY antennas
Folks, I have a received a few more of these from Kent. A few of you had expressed interest in buying one, way back....... I am sorry, but I have mislaid the 'waiting' list. In the UK they are £10 eac
Folks, I have a received a few more of these from Kent. A few of you had expressed interest in buying one, way back....... I am sorry, but I have mislaid the 'waiting' list. In the UK they are £10 eac
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By SAM JEWELL
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Bell Hill Beacons 7 messages
No, Don't panic - they're all running OK :-) Just posting to say Thank You to those who have made donations over the last few months towards the upkeep of these bacons - you know who you are. If you r
No, Don't panic - they're all running OK :-) Just posting to say Thank You to those who have made donations over the last few months towards the upkeep of these bacons - you know who you are. If you r
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By Andy G4JNT
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not hearing 13cm GB3MHz anymore 6 messages
Hi all, normally I try to monitor the GB3MHZ beacons (currently 23, 13 and 9cm) which present a good condx indication. The beacons are roughly 300km distance from my station. The past few days condx w
Hi all, normally I try to monitor the GB3MHZ beacons (currently 23, 13 and 9cm) which present a good condx indication. The beacons are roughly 300km distance from my station. The past few days condx w
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By Rien Eradus PA0JME
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Obsolete Suhner Connectors ...
Hello All, I've been going through my 'real junk' boxes getting rid of the real dross of ages, and have found some NIB (new in bag, in this case) Suhner N Jacks which I can't identify. They are not in
Hello All, I've been going through my 'real junk' boxes getting rid of the real dross of ages, and have found some NIB (new in bag, in this case) Suhner N Jacks which I can't identify. They are not in
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By Chris Bartram G4DGU
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Slew drives from China 8 messages
Slew drives from China So to move a 1.2M+ dish what would be OK ? For me FedEx sort out everything with no storage fees. 73 Dave G4IUG
Slew drives from China So to move a 1.2M+ dish what would be OK ? For me FedEx sort out everything with no storage fees. 73 Dave G4IUG
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By Dave Cawley G4IUG
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4 Foot Prime Focus Dish
4 Foot Fibreglass Prime Focus dish up for grabs! Dish is substantial with metalised reflective surface complete with 4 fibreglass stays to support LNB etc Free to a good home but would appreciate a sm
4 Foot Fibreglass Prime Focus dish up for grabs! Dish is substantial with metalised reflective surface complete with 4 fibreglass stays to support LNB etc Free to a good home but would appreciate a sm
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By Adrian G4UVZ
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Re elevation on a dish 11 messages
Hello, I am adding elevation on a dish for tropo only (not EME) and wondered if anyone has a photo of the mechanics of it, preferably with some sort of hinge . I have an actuator which has a stroke le
Hello, I am adding elevation on a dish for tropo only (not EME) and wondered if anyone has a photo of the mechanics of it, preferably with some sort of hinge . I have an actuator which has a stroke le
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By Dave
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VK3CV 30THz full system demonstration. 15 messages
Hi all, Andrew, VK3CV, has been busy in lock-down pushing the boundaries of what's possible. Take a look at his latest video for experimentation on 30THz, here... https://www.youtube.com/watch?v=6gJtz
Hi all, Andrew, VK3CV, has been busy in lock-down pushing the boundaries of what's possible. Take a look at his latest video for experimentation on 30THz, here... https://www.youtube.com/watch?v=6gJtz
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By Tim, VK2XAX
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RF-Power 8000 4 messages
Hi all Anyone got any info or links to an english set of instructions for: https://www.banggood.com/RF-Power8000-1Mhz-8000Mhz-OLED-RF-Power-Meter-55dBm-5dBm-Adjustable-Attenuation-Value-p-1208585.html
Hi all Anyone got any info or links to an english set of instructions for: https://www.banggood.com/RF-Power8000-1Mhz-8000Mhz-OLED-RF-Power-Meter-55dBm-5dBm-Adjustable-Attenuation-Value-p-1208585.html
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By Tom GM8MJV
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MMIC's 11 messages
Hi all, I have repurposed a DDK 2008 L band source from 96MHz to 106.5MHz with an output of 1278MHz. The original was extended to include a PGA103+ to bump up the output to feed a high level mixer. Th
Hi all, I have repurposed a DDK 2008 L band source from 96MHz to 106.5MHz with an output of 1278MHz. The original was extended to include a PGA103+ to bump up the output to feed a high level mixer. Th
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By Colin Ranson
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Avoiding courier customs service fees 2 messages
Back on topic hopefully. I have never objected to paying duty and VAT but I do strongly object to paying £8 to £20 on top of that duty to the courier I already paid handsomely to deliver it in order t
Back on topic hopefully. I have never objected to paying duty and VAT but I do strongly object to paying £8 to £20 on top of that duty to the courier I already paid handsomely to deliver it in order t
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By Mike Willis
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PCB delivery 10 messages
Nice delivery of pcbs today, the 9cm transverter is the one that I'm looking forward to building up. There is another batch of CANFI noise heads, but my pick and place is in bits at the moment, i 'll
Nice delivery of pcbs today, the 9cm transverter is the one that I'm looking forward to building up. There is another batch of CANFI noise heads, but my pick and place is in bits at the moment, i 'll
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By Robin Szemeti - G1YFG
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VAT ... it looks like it's going to be difficult. 38 messages
Well, having had a guy I buy aerial parts off in Germany decline to supply because of VAT .. I did a bit more digging. It turns out, that while I thought he was wrong .. he's actually right ... any sm
Well, having had a guy I buy aerial parts off in Germany decline to supply because of VAT .. I did a bit more digging. It turns out, that while I thought he was wrong .. he's actually right ... any sm
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By Robin Szemeti - G1YFG
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MKU 13 G3 Schematic 11 messages
Does anyone have a schematic for an MKU 13 G3? I can’t find mine. I can find the bit of paper that came with it explaining how to fit a lock indicator LED but not the schematic. I just finished puttin
Does anyone have a schematic for an MKU 13 G3? I can’t find mine. I can find the bit of paper that came with it explaining how to fit a lock indicator LED but not the schematic. I just finished puttin
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By Conrad, PA5Y
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