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Questions tagged [equipment-operation]

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2answers
61 views

How Can I Remove a Password From a TYT MD-UV390 (Non-GPS)?

I just purchased a TYT UV-390 (Non-GPS) on Amazon. It arrived, I unboxed it and charged it and turned it on and it's asking for a password. The same goes if I try and read or write to it using CPS ...
1
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1answer
43 views

Help with ZaStone D900

I ordered a ham radio from eBay (doesn't matter which one) and I have gotten a completely different one than what I ordered. I'm quite new to amateur radio so please excuse my innocence/idiocy. I ...
7
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2answers
147 views

How were 1920s hams able to measure megahertz frequency?

I was reading 200 Meters and Down but one thing that was unclear to me was that hams in the 1920s were operating on the 200 meter frequency, which is around 1.5 Mhz .... or 1500 kilocycles to use the ...
2
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1answer
19 views

Alinco dj500t will not transmit, why?

Shows the word OFF on screen when ptt is pressed, in settings "tx" is set to on, what am I missing? The manual is no use due to poor translation and general incompleteness.
4
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1answer
131 views

Am I calibrating my SWR meter, SWR-001, correctly?

I have an SWR-001, which seems to be released under two different brands, MyDEL and Sharman. The MyDEL SWR-001 looks like this: and the Sharman one looks the same except for the label on the bottom ...
0
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1answer
104 views

Spectrum Analyzer: using “Max hold” for peak detection of a burst signal

TX works at 433 MHz and sends a burst of 64 bytes every second. The burst itself lasts for 102.4 ms. The width of TX signal is 400 kHz. RX is an Spectrum Analyzer (R&S FSL6) with a receiving ...
2
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1answer
79 views

Programming Aviation Band on Kenwood D-710G?

I got a brand new Kenwood D-710G under the Christmas tree and have been exploring many of its functions. This one has me stumped: How do I set, let's say, Band A to a frequency of 131.550 (AM) to ...
4
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1answer
102 views

APRS: what is with stations clustered in the middle of a lake?

I just recently started using APRSdroid, and I've been just looking at maps, and I've noticed that in my area there are spots with just a cluster of stations on top of each other (in this specific ...
0
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1answer
64 views

Temporary Skip frequency on an Icom ID-51 PLUS2

On the scanning options for the Icom ID-51 PLUS2, there's one called Temporary Skip Timer that can be any of: 5 minutes 10 minutes 15 minutes The manual says: Temporary Skip Timer Selects ...
3
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3answers
179 views

How do I set up my radio for an antenna tuner?

I recently acquired an MFJ Versa Tuner II model MFJ-949D as well as a Kenwood TS-430S radio. The instructions for the tuner state (in part): For optimum operation of the MFJ-949D, the transmitter ...
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0answers
123 views

Yaesu FT-65R quick function keys: changing values

I am using a FT-65R radio and loving it much. However I have a problem with assigning menu items to P1-P4 buttons. If I assign CTCSS menu item to, let's say P2, then after pressing P2 the menu item is ...
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3answers
3k views

Baofeng BF-888s radios don't talk to Baofeng BF-888s+ radios

I had originally bought a set of BaoFeng BF-888s+ radios that perform very well and perfectly suit my needs. Needing more, I bought another set, this time buying BaoFeng BF-888s radios. (Same model ...
4
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1answer
105 views

Receiving commercial / public-safety on a general-coverage HAM transceiver

I have an ICOM-7100 that I've installed in my mobile as my primary (nay, only) HAM transceiver; and I'm trying to avoid wasting a ton of space in my vehicle (not to mention money) for a proper scanner,...
2
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0answers
85 views

What protocol does the Vertex VX-2200/2100 use for programming?

I have seen a number of programming cable schematics on the internet, but I couldn't understand very much how they worked. From what I picked from all schematics, it appears the protocol uses the <...
3
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1answer
322 views

Is it possible to program the Vertex VX-2200 using the back DB 15-pin connector?

The service schematic of the Vertex Standard VX-2200 VHF radio shows that the ACC5 and ACC6 pins of the back DB 15-pin connector ...
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0answers
139 views

Kenwood D710G TNC Won't Monitor ID Packets?

I recently got a Kenwood TM-D710G and have been experimenting with using its internal TNC connected to a serial port on my laptop for packet / PBBS operation. I can connect to PBBSes whose callsigns I ...
2
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1answer
326 views

What's the difference between the normal and S-meter squelch in IC-2730?

I recently obtained an IC-2730E and can't figure out the difference between its squelch options. Unfortunately, the user manual isn't very helpful. The squelch option had 3 types: off, attenuation and ...
1
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1answer
862 views

How many independent power settings does the Yaesu FT-897/857 have?

I have found, and the manual agrees, that the Yaesu FT-897 (and presumably the essentially identical FT-857) stores multiple “RF POWER SET” values, for different bands. The manual simply describes ...
2
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1answer
173 views

Yaesu FTDX-1200 how to load band stack register

I have a Yaesu FTDX-1200. There is a feature that allows storage of 3 sets of frequency for each of the band selection buttons. I tried pressing store and then the band button but it does not seem to ...
3
votes
1answer
368 views

How can I disable the TOT time out timer of the TM-V71A?

I am using the Kenwood TM-V71A as an EchoLink link station. When I try to play our weekly bulletin, which has a duration longer than 10 minutes, the TOT cuts the transmission short. I do understand ...
2
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3answers
3k views

Setting up a Kenwood TM-D710G for APRS

If I am going to use a Kenwood TM-D710G for APRS, will I need to leave one of the VFOs on the APRS frequency of 144.390 MHz, or does the TM-D710G have a 3rd VFO built-in specifically for APRS use?
7
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1answer
341 views

Antenna tuning while receiving

I've built AA5TB's antenna coupler for a 5W 20m transceiver. Tuning was kind of difficult because my transceiver has buttons for sending a dot and a dash, but no tuning mode, so I couldn't have the ...
1
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1answer
136 views

Squelch sensitivity decreased when antenna is connected

I have a radio with a really horrible squelch. When the knob is all the way to most sensitive, the squelch has problems, the noise is not constant, the noise comes on and goes off. When the antenna ...
1
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1answer
267 views

How do you operate an “up 3” split dx station with a Kenwood TS570 or similar HF radio?

My Kenwood has "split" and "rit/xit". Is the "split" mode suitable for operating a split for a DX pileup situation, where a station is listening "3 up"? I'm confused about which of the larger or ...
2
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1answer
349 views

What does the “USER” programmable key function do on the Yaesu FT-897D?

I was just reviewing the manual of my Yaesu FT-897D to remind myself of useful functions I might have forgotten about, and I found the programmable function keys, which can be set to any of “All Multi ...
3
votes
1answer
969 views

How would this RF field strength meter be calibrated?

I'm interested in an RF field strength meter that doesn't have to be lab quality, but still gives enough information about the RF field to know if an area exposed to RF is above the safety limits ...
3
votes
2answers
3k views

How is “clarifier” control helpful?

My radio-club recently got a Yaesu FT-225RD transceiver and I'm trying to digest its manual (available for download here). This is the first ham radio that I'm learning how to use, so I could be ...
3
votes
1answer
641 views

How do I select a programmed memory scan on the Yaesu FT-897D?

The Yaesu FT-897D has a so-called “Programmable Memory Scan (PMS)” feature, which allows limiting scanning to a user-defined band by creating special paired memory entries which set the upper and ...
1
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2answers
1k views

Kenwood TS-590S VGS-1: Voice keyer does not transmit unless VOX is enabled

I have a Kenwood TS-590S with a VGS-1 voice guide/storage module, which I use in multi/multi contesting operations for voice keying (calling CQ). There's one drawback - it seems to only transmit ...