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Homemade receiver for 80 meters band. The receiver works very well (in fact better than some of its successors), especially the AGC makes listening to 80m QSOs a real pleasure. Sensitivity is not cutting-edge, but on a full-size short-wave antenna it is by fare sensitive enough.

March/April 2010 will be QRV from March 16th till April 4th on IOTA NA-100, 6-80m - mainly in RTTY, PSK and SSB QSL via DL7AFS

Remote SDR is a web application allowing to remotely control an amateur radio transceiver between 1 MHz and 6 GHZ. It allows processing of Adalm-Pluto SDR in addition to HackRF or RTL-SD Reception in NBFM, WBFM, AM in addition to SSB Transmission in NBFM or SSB and more

Technical Comments about Transmitter Intermodulation, Distortion, and ESSB (or Hi Fi Wide Fi SSB) audio or over equalization by W8JI

How to add the YF-122CN 300 Hz CW filter or YAESU XF-119SN 2,3 Khz SSB filter in the Yaesu FT-857

27 oktober - 6 november 2012 30/20/17/15/12/10/6 meter band ssb-cw-rtty

The Lampedusa 2013 DXpedition is comprised of an international team from 6 countries. We will be on the air October l 17 thru October 30, 2013 running 4 stations on 160M through 6M (SSB/CW/RTTY).

DK7IH QRP transceiver for 14 MHz. This small and compact home made transceiver with a max power output of 5W, the VFO module is based on the clock oscillator chip Si5351A by Silicon Labs ATmega168 and OLED 1306

Live webcam images, still pictures and movie clips over an HF SSB channel. NBTV (Narrow Band Television) is a technique with some similarity to SSTV, and some to conventional FSTV

Group of Belgian operators 80-6m; SSB PSK RTTY QSL via ON4ANN

Elecraft new QRP transceiver, an 80-10 m SSB/CW/Data station that fits in your pocket

Republic of Niger 2017 5U5R DXpedition web site 2017 Mar 9 - 2017 Mar 2 Will operate 160 to 10m, also 5.360 MHz; SSB CW RTTY; QSL via EA5RM

By CE2NTT; 40-6m; SSB QSL via CE2NTT Direct

I used a FT 240-43 for much more power, not needed but beter safe than sorry. 150 Watt continious, 300 Watt PEP SSB, 90 Watt Digimodes 10 Mhz, 18 Mhz, 24 Mhz Very easy to build design and a good antenna for people who don't have much space for big towers or long wires This design is from Hans - PE1RNU

A lean design SSB-Transceiver for 14 MHz, Simple SSB Transceiver for 14MHz VFO controlled, 5W PEP

A home made portable QRP transceiver designed to work on 40 or 80 meters SSB band.

Modifying the Collins KWM-2 for Serious CW Operation, Make this old SSB workhorse perform like it should on CW.

This transmitter covers the 160, 80, 40 and 20 metre bands and provides both SSB and properly generated CW. The CW side of this transmitter is not compromised and produces excellent CW. On SSB the audio has been tailored to provide a rising response to 3 KHz, with a sharp drop above that frequency. There is RF speech clipping to both provide more "punch" and to limit the peak output.

20W portable handheld SSB transceiver for 20 meters band

Several belgian hams will be qrv from Jersey between the 24 till 30 may 2013 , the aim is to be qrv on 2 M, 6 M, from 10m to 160 m , SSB and CW, PSK with an emphasis on the higher bands , conditions permitting

July 2017 DXpedition to Miquelon SSB, CW, RTTY - 80M - 10M

All HF Bands CW/SSB/DIGI CQ WW CW anb Online log St. Eustatius DXpedition

Just a simple signal generator based on ADF4351 module from fleebay allows you to generate one single frequency that can go up or down in 100Khz steps via two push buttons.

Harald with be QRV from Kigali, Rwanda from 5th to 24th June 2018 He will be running CW, SSB, RTTY and the new FT8 Mode

Members of the Low Bands Contest Club (OM7M) will take part in an DX-pedition to Pemba Island AF-063 from 6.2 – 18.2. 2020. They will be on air from 160-10m CW, SSB, RTTY & FT8. Also participation in the ARRL DX CW and CQ WPX RTTY contests. The licence is issued and callsign will be 5H4WZ.

11-20 December 2019 A5B HF Bands 160 - 6m CW SSB FT4 FT8

2020 Jan 6 - 2020 Feb 29 By DJ4KW as V31YN and DK9GG as V31GW; 160-10m; CW FT8 SSB; see Web for full QSL and operational details QSL via LoTW.

The SM1000 allows you to run FreeDV without a PC. Connect the SM1000 to your SSB radio, and you now have Digital Voice (DV). You don’t have to buy a new radio to run Digital Voice! It’s based on a STM32F4 micro-controller, has a built in microphone, speaker amplifier, speaker, and transformer isolated interfaces to your radio.

Niuatoputapu Island (OC-191) as A35JP/P from 17 to 22 August 2017 80m-6m/CW&SSB

A mid-power portable/handheld SSB transceiver for 14MHz

4S7GWG and 4S7RTG 40-6m; CW SSB RTTY 2016 Mar 2 - 2016 Mar 18

This project revisits a minimalist software-defined radio (SDR) receiver built using a Raspberry Pi Pico, now optimized for simplicity and affordability. Designed for breadboard assembly with through-hole components, the receiver covers 0–30MHz, supporting CW, SSB, AM, and FM modes with an OLED display and spectrum scope. Key improvements include enhanced frequency accuracy, reduced op-amp saturation, and lower-cost components. Powered by three AAA batteries, it delivers standalone operation for global signal reception. Ideal for hobbyists, the design fosters experimentation and is documented with firmware and schematics available online.

Revision of the Cigarette Pack 14MHz SSB QRP Micro-Transceiver

2019 Nov 14 - 2019 Nov 2 IOTA OC-035 By RZ3FW R4WAA fm Efate I (IOTA OC-035); 160-17m; CW SSB RTTY FT8: QSL via TBA

Tutorial, How to call CQ as an HF QRP station in SSB/Phone. Calling CQ Basics, Calling CQ QRP or Portable

A simple 2-tone-generator for testing the linearity of SSB transmitters. This device is as simple as useful. With 2 transistors and an oscilloscope, it is fairly easy to test the linearity of your SSB transmitter. The 2-tone-method is a standardized test method that can be used to determine the maximum output and the amplification characteristics of a sideband transmitter.

DXPedition to Tonga A35EU IOTA OC-049 Tongatapu group, Operation will be 10-160 meter in CW/SSB/RTTY and some FT8

TN5R will be active from March 9th to March 19th, from 10 to 160 meter on CW, SSB and RTTY

Homemade custom CAT interface cable for the Yaesu FT-817 this article include schematics diagram for the interface and some pictures

A simple superheterodyne receiver (3.5–30 MHz) for amateur radio achieves stable SSB-CW reception using modern BJTs, an AD831 mixer, a 6-pole quartz filter, and Seiler oscillators. Designed with high IF (4.5 MHz), compact AM-FM variable capacitors, and modular resonant circuits, it ensures selectivity, image rejection, and stable tuning. Built in a copper-lined wooden case, it features practical assembly techniques but lacks advanced features like AGC or S-meter. Effective on basic antennas, it achieves global reception.

The MiniPA Linear Amplifier for HF page discusses the popularity of QRP for HF among ham radio operators, such as those using the Yaesu FT818 or low power SDR transceivers. It explores the use of cheap kits from eBay or Chinese suppliers to build a 70-100W SSB amplifier using IRF530 MOSFET transistors. The article provides a review of the MiniPA design, including its features, components, and assembly process. It also highlights the importance of using a heatsink and forced air cooling for optimal performance. This page is useful for hams looking to enhance their HF rig with a budget-friendly amplifier.

Official web site of URE contests including the King of Spain HF CW and SSB Contest

VARA HF is a soundcard modem that can be found on the HF bands exchanging traffic (Winlink). VARA implements an High Speed Data Mode and comes in 2 separate programs VARA FM and VARA HF. VARA is a High Performance HF modem based on OFDM modulation. VARA Modem, brings state of the art Military grade technology to new and existing HF data. Introduces a new standard of technology available for Amateur and Commercial use. Designed for operation within a SSB Bandwidth of 2400 Hz.

QRP is a Q-code originally meaning reduce power, but now has come to mean operating a radio that outputs 5 watts or less for CW or 10 watts for SSB.

Three of the five-members from the 1992 Navassa DXpedition Team, AA4NC, Will; AA4VK, Ron; and WA4DAN, Murray are planning a reunion DXpedition to PY0F, Fernando de Noronha from October 18-27, including operating in the CQWW Phone Contest. An all-band operation is planned on 160 – 6 meters with SSB, CW & RTTY

An easy to build 6 watts SSB transceiver for 14MHz. BITX is an easily assembled transceiver for the beginner with very clean performance. Using ordinary electronic components and improvising where specific components like toroids are not available, It has a minimum number of coils to be wound.

DX Pedition to Galapagos will be active from October 26th to November 7th, from 6 to 160 meters (including Warc bands) on CW, SSB and Digi modes with at least 4 stations on the air at the same time.

This Satellite Antenna Elevation System project involves mounting horizontally polarized Yagi antennas on a fiberglass reinforced polymer (FRP) crossboom. A Yaesu G-800DXA azimuth rotator is in place, requiring only an elevation rotation system. Elevation is controlled by a 12VDC linear actuator connected to a U-bolted arm on the crossboom, rotating within a DIY bearing arrangement. Common handyman tools suffice for assembly. The setup includes FRP crossboom, aluminum tubing, PVC couplers, nylon camshaft bushes, and a K3NG-based controller for azimuth and elevation control. Detailed guides and resources are available online.

This PDF article introduces a series of dual-tuned bandpass filters designed for input tuning in amateur band receivers. Developed by Stefen Niewiadomski, these filters feature 50-ohm input/output impedance and can be cascaded for improved roll-off outside the passband. The designs use readily available TOKO coils, with taps on the tuned winding for matching input circuits with impedances around 1k ohm. The inductors are core-tuned, with average inductance values provided for easier matching to other inductors.

This a well performing, simple two band transceiver. The transceiver design is inspired by the S7C superhet. A dual-band transceiver with a crisp receiver and a clean SSB signal