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Re: PCB Gerber files for the retired Juma kits

Hello After a success with on my own build JUMA RX1, I did a decision to build JUMA TRX1. Many thanks for posting GEBER files … but … Yes there is possibility to import Geber to Eagle , Yes there is possibility to import Geber to Corel … please believe me, I tested both possibilities .. I was not ab...
by Martin Caprda
10 Jan 2018 20:50
 
Forum: Juma Discussion
Topic: PCB Gerber files for the retired Juma kits
Replies: 2
Views: 1135

Re: RX1 Adjustment

... because of the manufacturing tolerance of the crystal, the output frequency generated may not be exactly 1MHz. Measure the frequency with an accurate frequency counter, and adjust C20 until the frequency is 1MHz. This is best measured at J2 on the DDS & Control Board. .. Hello Adrian Thanks...
by Martin Caprda
25 Jul 2017 11:53
 
Forum: Juma Discussion
Topic: RX1 Adjustment
Replies: 2
Views: 845

RX1 Adjustment

Good morning Juma friends I’m new in the community and have a simple question regarding JUMA RX1 adjustment. I build on my own RX1 using PCB templates on this site. My question is related to DDS board adjustment with capacitor C20. If the adjustment mode is initiated display shows 1Mhz for about 10 ...
by Martin Caprda
24 Jul 2017 07:53
 
Forum: Juma Discussion
Topic: RX1 Adjustment
Replies: 2
Views: 845

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