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I played with crystal filters a while back, and found that the low profile? HC-49s crystals aren't suited for wider bandwidths (SSB), but are OK for CW filters.? I was experimenting at 4.9 MHz, at 9

Am 20.02.2022 um 23:41 schrieb Ion Petroianu: another source: 20 Stücke 9M 9,000MHz 9.000MHz HC-49S Quarze Oszillatoren | eBay <https://www.ebay.de/itm/254679896967> from china seller185115 185115

https://www.digikey.ca/en/products/detail/ecs-inc/ECS-90-S-4X/827551

Mike, Have you tried Mouser Electronics? Cheers, Halden VE7UTS

Does anyone have a recommended source for 9MHz crystals for a crystal ladder filter?? Plenty offered on E-bay but no way of telling how good they are. Thanks, Mike K5ESS

Thanks Bill. I tried your version of the code, but it never gets beyond "Waiting for GPS" and shows the target frequency, in my case 10.0M and it does produce 10 MHz. The serial output also stops with

Hi, Sverre, I just uploaded my implementation of Erik's design, including the code. You are welcome to grab that and try it to see if there is any difference. Though you did not implement the hardware

Thank you Dave, I set the ssid and password, still doesn't want to connect with my? netgear ac1900 smart wifi router, model r6900 v2. Could be something I am not doing right when trying to connect,

Got it to run by disabling CLOSE_LOOP in approx line 67-70 in ino-file: #define CLOSE_LOOP? ? ? ? ? ? ? ?0 // 8 must be 0 Now, if I could only get the LCD to show GPS clock time, i.e. UTC

Bill Buoy <bill@...> added folder */Q&D GPSDO*

Just to add to my previous question. I can hear the output at 10.0 MHz, so there is definitely a Lock here. -- Sverre LA3ZA http://la3za.blogspot.com

I'm trying to run Erik Kaashoeks code for the 10 MHz reference. The problem seems to be that the LCD is stuck while the code seems to achieve lock. The code is from 3 Dec 2021:

Great work! Check you have set your SSID and password details in my_SA.h.? Lines 30/31. Dave M0WID

Dave, I tried the reference output and it displays similar to your photo snap with 15 mhz at 30 db and with the harmonics. I am waiting for another attenuator and a couple of other parts, and should

Not yet, today I connected the tg 4432's and they all are seen and loaded. I am now working on the filters and waiting for a few parts to be delivered. I am taking it section by section and testing as

Glad you have got it working.? Have you tried connecting the ref out to the input?? As shown the 15MHz ref signal is on? (REF 15 in the side status bar) so you should see signals at around -30dBm

added photo

Update, I checked everything and found a short between sdo and + 3.3 volt line, corrected and tried again, no go. I started a new rf board, this time on the same board as the control. I only have the

Thank you Dave and Gyula, I will certainly check your suggestions out. Just got power back after 3 days outage, reason I haven't replied sooner. Am in process of building a new RF board with better

Hi John, I had exactly the same error message. Checking with a magnifying glass did not help. The Si4432 module has a distance of 1.27mm feet. I checked the adjacent legs with an Ohm meter and found a