Got a Uniden Washington (8719 PLL) on the desk.
Issue:
Extras not working properly.
Evaluation:
Only one crystal in the expo kit. The 11.1125 (original radio crystal) is the only crystal inserted in one end of the row for the crystals.
I found out that the high channel crystal for this B version is 11.2595, and I have one so I inserted it in the kit. Now I need to know the mhz the low channel crystal needs to be.
I calculated the difference between the highest channel crystal and the original radio crystal to be a 0.147 spread. So I subtracted that 0.147 from 11.1125 and came up with 10.695. I have several of those but it drops me down to the middle of 25mhz instead of 26.515mhz.
10.695 low channels (10.695 + 0.147 = 11.1125)
11.1125 regular 40 channels
11.2595 high channels (11.1125 + 0.147 = 11.2595)
I may not have them in the right orientation (placed in their right socket) to produce the right frequencies.
Anyone know if the 10.695mhz crystal is the proper crystal for the lower channels from an expo 100 B version (it calculates out to be the right one)?
And what is the proper socket for the high channel crystal, then the low channel crystal, etc...?
By the way, for those that still use expo channel kits:
Over time, the crystal socket solder joints will get weak and lift off the solder connection. You must remove the switch control itself from the board by unsoldering the five tabs around the base of the switch, and then reflow the solder spots for the crystal sockets. The center one being your main focus. Then resolder switch control back to the board.
Issue:
Extras not working properly.
Evaluation:
Only one crystal in the expo kit. The 11.1125 (original radio crystal) is the only crystal inserted in one end of the row for the crystals.
I found out that the high channel crystal for this B version is 11.2595, and I have one so I inserted it in the kit. Now I need to know the mhz the low channel crystal needs to be.
I calculated the difference between the highest channel crystal and the original radio crystal to be a 0.147 spread. So I subtracted that 0.147 from 11.1125 and came up with 10.695. I have several of those but it drops me down to the middle of 25mhz instead of 26.515mhz.
10.695 low channels (10.695 + 0.147 = 11.1125)
11.1125 regular 40 channels
11.2595 high channels (11.1125 + 0.147 = 11.2595)
I may not have them in the right orientation (placed in their right socket) to produce the right frequencies.
Anyone know if the 10.695mhz crystal is the proper crystal for the lower channels from an expo 100 B version (it calculates out to be the right one)?
And what is the proper socket for the high channel crystal, then the low channel crystal, etc...?
By the way, for those that still use expo channel kits:
Over time, the crystal socket solder joints will get weak and lift off the solder connection. You must remove the switch control itself from the board by unsoldering the five tabs around the base of the switch, and then reflow the solder spots for the crystal sockets. The center one being your main focus. Then resolder switch control back to the board.
Last edited: