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Author: n8ur

HP 5065A Status

February 27, 2019 n8ur Leave a comment

My faithful HP 5065A Rubidium standard, which had been converted to a “Super” model, developed an intermittent sickness and back…

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Posted in: Test and Lab Equipment, Time and Frequency Filed under: Frequency Standards, HP5065A

Anan7000/HPSDR and Icom IC-7300 S-Meter Calibration

February 6, 2019 n8ur 2 Comments

I’ve noticed that my SDR setup, an Apache Labs Anan-7000DLE transceiver used with the PowerSDR software, seems to rest the…

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Posted in: Ham Radio, SDR Filed under: 7000DLE, Anan, IC-7300, Icom, PowerSDR, SDR

HP 5061B-004 Cesium Standard

November 11, 2018 n8ur Leave a comment

I was lucky enough to find an HP 5061B cesium standard with what I think is a virtually new high…

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Posted in: Test and Lab Equipment, Time and Frequency

HP 5065A Rb Standard

November 10, 2018 n8ur Leave a comment

I set my HP 5065A Rubidium standard to the 5071A. Unlike a Cesium clock, the Rubidium system does have some…

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Posted in: Test and Lab Equipment, Time and Frequency

HP 5061A Frequency Offset

November 8, 2018 n8ur Leave a comment

I compared my old HP 5061A cesium standard against a much newer HP 5071A with high performance tube. Cesium standards…

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Posted in: Test and Lab Equipment, Time and Frequency

OSA 8607-008 baseline frequency measurement

n8ur Leave a comment

This is the first of several boring posts where I’m documenting the offset of a couple of my frequency standards…

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Posted in: Test and Lab Equipment, Time and Frequency

IC-7300 Power Overshoot?

October 4, 2018 n8ur 7 Comments

Many people use HF transceivers in situations where they back the power down significantly from full output. Examples are driving…

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Posted in: Ham Radio Filed under: IC7300, Icom, Transverter

Add streaming audio to OP25 RPi scanner

March 18, 2018 n8ur 5 Comments

Thanks to Graham Norbury, here is how to set up a Raspberry Pi OP25 scanner to stream audio to an…

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Posted in: Rapsberry Pi, SDR Filed under: OP25, RTL-SDR, Scanner

Thoughts on a Wideband SDR Recording Tool

February 16, 2018 n8ur 1 Comment

As part of the HamSci Solar Eclipse experiment, I recorded wideband data from my SDRs on the theory that capturing…

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Posted in: Ham Radio, Red Pitaya, SDR, Solar Eclipse, TAPR Projects

Update on Update on P25 Scanner

February 12, 2018 n8ur 31 Comments

Since my updated post on building a P25 trunking scanner with a Raspberry Pi and an RTL-SDR dongle, I’ve created…

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Posted in: SDR Filed under: OP25, P25, Raspberry Pi, SDR

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