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1GHz Freq Counter

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diba:
Hi,
I built A project 1 GHz Counter but i have problem as an Err appear on the display and if I remove SAB6456 Ic the zero will display and if i touch R2 pin a different figure be showed, what the issue? please 

Jan:
It probably works ok. The prescaller IC oscillates with no signal connected (see its datasheet). If it oscillates above 1 GHz, the "Err" is indicated. Feed a correct signal.

Hartmut:
Hello,
I translate my text through Google, because my English is very bad.
I built the counter and have the following problem. The prescaler, a SIP U664B divides the frequency by 64 clean 446MHz input has on the PIN3 16F84 a frequency of 6.9668 MHz, so OK.
The indicator on the display is 1445 but without Dp. At a frequency of about 108MHz is on the display 4817, and the input frequency in the PIC is 1.6875MHz. Without prescaler, the display shows the 00th What is wrong and who can help me?

Thanks Hartmut

Jan:
The input signal frequency needs to be divided by 256.
The DP is hard-wired so you have probably a mistake in the display connection.

Hartmut:
Thanks for the quick reply! I'll check everything again and sign up again. Thank you!
There may be at my age - I'm 63 (lol)

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