From 23e015676eda3e1e851a61832227e19bc76dd551 Mon Sep 17 00:00:00 2001 From: Bryan Biedenkapp Date: Mon, 27 Jan 2025 22:57:22 -0500 Subject: [PATCH] update README.md hotspot calibration notes; --- README.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/README.md b/README.md index c85a2c16..608fa999 100644 --- a/README.md +++ b/README.md @@ -165,6 +165,9 @@ The following setups assume the host is compiled with the setup TUI mode (if ava - The Rx Frequency adjustment usually follows the Tx Frequency Adjustment, so if you've set a -200hz adjustment for Tx the Rx Frequency Adjustment should be -200hz or around -200hz. - After calibration use a digital capable radio, with a front panel BER test or a radio with Tuner software capable of BER test. Evaluate Rx and Tx BER. Make fine adjustments if necessary to dial in BER. +- Calibrating a hotspot without a service monitor is possible, however a bit more tricky and mostly trial and error. The steps are essentially the same as the steps above, with the cavet being *step 2 should be skipped* and a radio capable of measuring Rx/Tx BER using +either front panel controls or tuning software is mandatory. In steps 3 and 4 while observing the BER via whatever available means, you want to essentially vary transmit deviation and frequency offset to find the lowest possible BER. (A very stable SDR *might* be usable +for step 4 to observe frequency error.) ## dvmfne Configuration