NICE and EASY 10 Meter Beacon using a Dynascan Corp. COBRA 29A

Want to get a 10 Meter Beacon up and Running inexpensively?

Please contact your Area Region 10 Meter Freq. Coordinator, for an assigned frequency. The Area 2 Coordinator is WJ5O. Depending on the freq you are assigned , you may need to choose another Crystal slightly lower in Freq. than the 10.24MHz crystal that I used. Read more info here:

WJ5O CB to 10 info

Here is what you will need to buy or find!

A working 23 Channel Cobra 29A CB Radio

A good 10.24MHz Crystal

A small  2 to 18 PF Variable Capacitor

Tools that will make the job easier.

A Freqency Counter

A  50 Ohm Dummy Load

Plastic alignment tool for peaking small transmit transformers.

You can find a Cobra 29 23 Channel Radio on Ebay for Under $20.00 with shipping.

The 10.24 MHz Crystal can be found in other 23 Channel CB Radios , Like the 23 Channel Midland 13-857b or similar units. Most 40 Channel PLL controlled radios use the 10.240MHz crystal as reference.

The 10.24MHz MHz Crystal will replace the cobra 29 11.275MHz Crystal and will provide frequency coverage as follows:

Channel 1 becomes 28.00MHz

Channel 10 = 28.110

Channel 20 = 28.240

Channel 23 = 28.290

The small Variable capacitor is put in series, to raise the frequency or in parallel to lower the 10.24 MHz crystal frequency slightly.