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Reviews Categories | Transceivers: HF Amateur HF+6M+VHF+UHF models - not QRP <5W | ICOM CR-338 high stability crystal unit Help

Reviews Summary for ICOM CR-338 high stability crystal unit
ICOM CR-338 high stability crystal unit Reviews: 3 Average rating: 5.0/5 MSRP: $81.00
Description: Optional CR-338 high stability crystal unit for high frequency stability of 0.5 ppm
Product is in production.
More info: http://
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You can write your own review of the ICOM CR-338 high stability crystal unit.

K6SDW Rating: 5/5 Feb 19, 2007 18:47 Send this review to a friend
Dead on....  Time owned: 0 to 3 months
Just installed this on my ICOM 746PRO (which didn't really need the high stability xtal) and adjusted dead on with WWV.

Easy, straight forward install .....

Cheers All!
KP4DAC Rating: 5/5 Feb 19, 2007 18:33 Send this review to a friend
Works Great in Planes  Time owned: more than 12 months
I installed this on my three Icom 706MKIIG and it holds the frequency down to the cycle when compared against WWV. I have the 706s installed out of the aircraft cabin environment where temperatures run into -20F at 25,000 feet and the CR-338 holds the frequency right on. The 706 takes less than a minute to stabilize on frequency. The CR-338 is a nust for wide temperature range environment
WI9NDY Rating: 5/5 Jan 13, 2006 08:37 Send this review to a friend
Icom CR338 TCXO Upgrade  Time owned: 0 to 3 months
There is very little information on this option so I thought I would share. I installed this option into an Icom IC-718 transceiver. The IC-718 manual gives clear instructions for the installation. Once you have the bottom of the radio removed the circuit board is accessible. One word of caution, the ribbon cables are fragile so take care in removing and re-inserting them. Once the board is removed unsoldering the crystal is easy using a low wattage iron and solder wick. You have to remove excess solder from the new mounting holes and the only tricky part is the ground plane hole. Once this is done the CR338 can be soldered in. After the board is reinstalled the frequency is adjusted with C-16. This must be done as the frequency will be off. It is best to let the rig warm up for a period of time (I waited for one hour). Total time was about one hour of work to install the option.

73 de WI9NDY

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